JP3591201B2 - Map information utilization device with telephone function - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention has both a function as a mobile phone device for transmitting and receiving telephone signals and a function of using a map information signal read from a built-in map information storage unit, for example, in a mode of displaying a map image based on the map information signal. The present invention relates to a map information utilization device having a telephone function.
[0002]
[Prior art]
It is becoming common to equip vehicles with a navigation device that constitutes one of the on-road driving assistance systems for the vehicle, and such a navigation device is usually provided with position detection that detects the current position of the vehicle on which it is mounted. , A map data storage unit, and an image display unit for visually providing information to the occupants of the vehicle. In the image display unit provided in the navigation device, road map information including the traveling area of the vehicle equipped with the navigation device is read from the map data storage unit, and a road map is displayed based on the read information. A state is displayed in which various information such as the current position detected by the position detection unit, the destination, and the planned route from the current position to the destination are displayed on the displayed road map, The occupant of the vehicle can easily drive the vehicle to the destination according to the display on the image display unit.
[0003]
In an environment in which a public car telephone service, which is a type of wireless communication service, can be provided, a vehicle is equipped with a mobile radio telephone system, and the vehicle is equipped with a public telephone subscriber or a mobile radio telephone system. It has become widespread that a call with another vehicle is made via a local wireless station that includes a traveling point of the vehicle in a service area. Under such circumstances, a mobile radio telephone system mounted on a vehicle has a built-in small microphone and a small speaker. It is desired that a hands-free device that includes a microphone and a speaker attached to a portion near the driver in the vehicle compartment and that is used for a call by the driver is provided. When a call is made by the driver through the hands-free device, the driver does not need to pick up the handset device or another device, so the degree of the driver's call operation hindering the driver's driving operation is limited. This is because it is considered to be reduced.
[0004]
On the other hand, portable telephone devices that transmit and receive telephone signals wirelessly under the condition of being small and lightweight and extremely easy to carry have been rapidly becoming popular in recent years. In particular, a portable telephone device adopting a digital cordless system is used not only by itself and used for a telephone call but also by being connected to an electronic information processing device handling various data, for example, a personal computer. It is frequently used for data communication by a personal computer.
[0005]
It is also proposed to bring such a portable telephone device into a vehicle so that the portable telephone device functions as a mobile radio telephone system, for example, as disclosed in JP-A-8-46678. Has been proposed. In such a case, the mobile phone device brought into the vehicle is usually placed in a state of being mounted and held on a holding unit provided in the vehicle compartment of the vehicle.
[0006]
Even when the mobile phone device is mounted on a holding unit provided in the vehicle interior of the vehicle and used as a component of a mobile radio telephone system, a call through the mobile phone device is installed in the vehicle interior of the vehicle. It would be desirable to be able to do so via a hands-free device. Therefore, the portable telephone device mounted on the holding portion provided in the vehicle interior of the vehicle is electrically connected to the hands-free device installed in the vehicle interior of the vehicle, and audio from the portable telephone device to the hands-free device is transmitted. In order that the supply of signals and the like and the supply of audio signals and the like from the hands-free device to the mobile phone device are performed, each of the mobile phone device and the hands-free device is provided with a connection terminal portion therefor. A connecting portion for electrically interconnecting the connection terminal portion provided on the mobile phone device and the connection terminal portion provided on the hands-free device is provided on, for example, a holding portion to which the mobile phone device is attached. .
[0007]
[Problems to be solved by the invention]
In the portable telephone device used as described above, usually, a relatively small-sized image display unit on which various information such as a telephone number and date and time are displayed, and an image display supplied to the image display unit A memory unit is provided for writing and reading of data for use, that is, for temporarily storing image display data. Therefore, if the image display unit and the memory unit provided in such a mobile phone device can be used to display map information on a specific area on the mobile phone device, the mobile phone device can be used, for example, in a vehicle. For a person who carries and uses it in a state where it is detached from the holding unit provided in the room, an extremely convenient usage can be considered.
[0008]
When the map information is displayed as an image on the mobile phone device, the map information is stored in a memory unit provided in the mobile phone device, and the map information is read from the memory unit as appropriate and supplied to the image display unit. Become.
[0009]
However, in general, map information requires a relatively large data capacity even if it relates to a relatively small area. Therefore, in consideration of practical utility, various map information is stored in a memory unit provided in the mobile phone device so that various map information can be selectively displayed on the mobile phone device. Therefore, it is required that the memory unit provided in the mobile phone device has a large memory capacity. Further, with the increase in memory capacity of the memory unit, the circuit unit required for writing map information to the memory unit and reading selected map information from the memory unit is also large. Will be done. As a result, inconveniences such as an increase in size, an increase in weight, and an increase in cost of the portable telephone device are caused.
[0010]
In view of such a point, the present invention can transmit and receive telephone signals to function as a mobile telephone device, and transmit and receive a voice signal or a transfer signal based on the audio signal to and from a hands-free device installed in a vehicle. And map information on a specific area can be obtained, for example, based on the map information without increasing the memory capacity of the memory unit and increasing the scale of the circuit unit associated with the memory unit. A map information utilization device having a telephone function that can be effectively used in a mode of displaying a map image is proposed.
[0011]
[Means for Solving the Problems]
A map information utilization device having a telephone function according to the present inventionPlaceA main transmitting and receiving unit for transmitting and receiving telephone signals, an audio input unit for supplying an audio signal corresponding to an audio input to the main transmitting and receiving unit, and an audio output corresponding to a reproduced audio signal obtained from the main transmitting and receiving unit. An audio output unit that takes aConnected to the hands-free device installed on the vehicle via the connection,While transmitting the reproduced audio signal obtained from the main transmission / reception unit or the transfer signal based thereon to the hands-free device installed in the vehicle, receiving the audio signal transmitted from the hands-free device or the transfer signal based on the audio signal, and receiving A hands-free device transmission / reception unit that takes an operation state of supplying a voice signal or a transfer signal based on the voice signal to the main transmission / reception unit;Through the connection described above,A state in which the hands-free device transmitting / receiving unit is interconnected with the hands-free device installed in the vehicle, and a state in which the memory unit is interconnected with the map information transmission unit provided in the navigation device provided in the vehicle.WhenIs selectively transmitted from the map information transmitting unit when the memory unit and the map information transmitting unit are interconnected by the connection state selecting unit.Represents map information for a given area range including the current location of the vehicleA control unit for setting an operation state in which the map information signal is stored in the memory unit;The state where the audio signal obtained from the audio input unit is supplied to the main transmission / reception unit and the reproduced audio signal obtained from the main transmission / reception unit is supplied to the audio output unit, and the reproduced audio signal obtained from the main transmission / reception unit or A signal supply for selectively taking a state in which a transmission signal based on the audio signal obtained from the hands-free device transmission / reception unit or a transmission signal based on the audio signal is supplied to the main transmission / reception unit. A state selection unit, an image display unit that displays a map image based on the map information signal read from the memory unit, and a current position detection unit that detects the current position of a portion including the image display unit, The display unit superimposes and displays the current position detected by the current position detection unit on a map image based on the map information signal read from the memory unit. Are the ones that can,Be composed.
[0015]
A map information utilization device having a telephone function according to the present invention configured as described above.In placeThere is a state in which the hands-free device transmitting / receiving unit and the hands-free device installed in the vehicle are interconnected, a memory unit capable of storing a map information signal, and a map information transmitting unit provided in the navigation device provided in the vehicle. State to interconnectWhenIs provided, and the connection state selection unit skillfully utilizes the connection unit for interconnecting the hands-free device transmitting / receiving unit and the hands-free device installed in the vehicle. Thus, it is possible to obtain a state in which the memory unit capable of storing the map information signal and the map information transmitting unit included in the navigation device provided in the vehicle are interconnected without providing a separate connection unit.
[0016]
When the memory unit capable of storing the map information signal is interconnected with the map information sending unit provided in the navigation device provided in the vehicle, the control unit causes the map information sending unit provided in the navigation device provided in the vehicle to Sent outRepresents map information for a given area range including the current location of the vehicleAn operation state in which the map information signal is stored in the memory unit is set. That is, in the memory unit capable of storing the map information signal, the map information transmission unit included in the navigation device provided in the vehicle is used as the map information source, and the map information signal that the map information source can transmit is stored. OurRepresents map information for a given area range including the current location of the vehicleThe parts can be selected and stored as appropriate.
[0017]
Therefore, the memory unit that can store the map information signalIncluding the current position of the vehicleRepresents map information for a given area rangeLandThe diagram information signal is stored and stored without requiring a large memory capacity and a large scale of the associated circuit section.LandThe figure information signal is provided for use, for example, as a map image display based on the figure information signal. Therefore, a map information utilization device having a telephone function according to the present invention is provided.PlaceIt is possible to transmit and receive telephone signals to function as a mobile phone device, and to transmit and receive a voice signal or a transfer signal based on the voice signal to or from a hands-free device installed in a vehicle, In addition, there is no need to increase the memory capacity of the built-in memory unit and increase the scale of the circuit unit associated with the memory unit.Prescribed including current position of vehicleThe map information on the area of can be effectively used.
[0018]
furtherAnd a map information utilization device having a telephone function according to the present invention.In placeIf,carA map information signal representing map information about a predetermined area range including the current position of the vehicle transmitted from a map information transmission unit provided in the navigation device provided on both sides is provided.Under the condition stored in the memory unit, when reading out and using a map information signal representing map information for a predetermined area range including the current position of the vehicle from the memory unit, if necessary, the current position is displayed on the image display unit. Displaying the current position of the portion including the image display unit detected by the detection unit, that is, the current position of the map information utilization device having the telephone function according to the present invention, superimposed on the map image based on the map information signal. You can also. Therefore, the map information utilization device having the telephone function according to the present invention exhibits various functions without requiring a large memory capacity of the built-in memory unit and a large-scale circuit unit attached to the memory unit. It is assumed.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is an example of a map information utilization device having a telephone function according to the present invention.ToAnd a navigation device provided in the vehicle and a hands-free device provided in the vehicle.
[0021]
In FIG. 1, a portable device 11 which is an example of a map information utilizing device having a telephone function according to the present invention is connected to a hands-free device 12 installed in a vehicle via a connecting portion. , The electrical connection between the hands-free device 12 and the navigation device 13 provided in the vehicle is selectively made. Hereinafter, a vehicle provided with the hands-free device 12 and the navigation device 12 is referred to as a mounted vehicle.
[0022]
In the hands-free device 12, each unit including the transmission / reception unit, the audio output unit, the audio input unit, and the connection state selection unit is operated under operation control by the hands-free control unit forming the control unit. The transmission / reception unit takes a state where transmission / reception of an audio signal or a transfer signal based on the audio signal with the portable device 11 is performed as necessary. The audio output unit generates an audio output according to the reproduced audio signal obtained from the transmission / reception unit, and the audio input unit supplies an audio signal according to the audio input to the transmission / reception unit. Further, the connection state selection unit performs connection with the portable device 11, and also describes an electric connection state between the portable device 11 and the hands-free device 12, and further, an electric connection state between the portable device 11 and the navigation device 13. Is selected.
[0023]
In the navigation device 13, each unit including the position detection unit, the image display unit, the map data storage unit, and the map information transmission unit is operated under operation control by a navigation control unit forming a control unit. The position detector detects the current position of the on-board vehicle based on the position detection signal received via the antenna 14 and sends out position data representing the detected current position of the on-board vehicle. The map data storage unit stores various types of road map data having different target areas, scales, and the like. From the map data storage unit, the stored road map data is appropriately selected and read. . The image display unit displays a map image based on road map data read from the map data storage unit, position data sent from the position detection unit, and the like, and displays a current position image superimposed on the map image. Further, the map information transmission unit forms a map information signal corresponding to the road map data selected and read from the map data storage unit, and takes a state where the map information signal is transmitted to the portable device 11 as necessary. .
[0024]
And in the portable device 11 which is an example of the map information using device having the telephone function according to the present invention, the main transmitting / receiving unit, the voice input unit, the voice output unit, the hands-free device transmitting / receiving unit, the position detecting unit, Each unit including the image display unit, the map information memory unit, and the connection state selection unit is operated under operation control by the general control unit forming the control unit. The main transmission / reception unit performs wireless transmission and reception of a telephone signal via the antenna 15 with, for example, a local wireless station in a public telephone communication system. The audio input unit supplies an audio signal according to the audio input to the main transmitting / receiving unit, and the audio output unit generates an audio output according to the reproduced audio signal obtained from the main transmitting / receiving unit. The transmission / reception unit for the hands-free device transmits the reproduction audio signal obtained from the main transmission / reception unit or a transfer signal based on the reproduction audio signal to the hands-free device 12 and receives the audio signal from the hands-free device 12 or the transmission signal based on the audio signal Then, an operation state in which a received audio signal or a transfer signal based on the audio signal is supplied to the main transmission / reception unit is set as necessary.
[0025]
The position detection unit in the portable device 11 detects the current position of the portable device 11 based on the position detection signal received via the antenna 16 and sends out position data representing the current position of the portable device 11. Further, the map information memory unit takes a state where the map information signal transmitted from the map information transmission unit provided in the navigation device 13 is fetched and stored as needed. The image display unit displays a map image based on the map data represented by the map information signal read from the map information memory unit, the position data sent from the position detection unit, and the like, and displays the current position image superimposed on the map image. And so on.
[0026]
Further, the connection state selection unit in the portable device 11 connects to the hands-free device 12 through the connection state selection unit provided in the hands-free device 12, and connects with the transmission / reception unit provided in the hands-free device 12. Selection control is performed on the electrical connection state with the free device transmitting / receiving section, and further on the electrical connection state between the map information transmitting section provided in the navigation device 13 and the map information memory section.
[0027]
Under such circumstances, each of the connection state selection unit provided in the portable device 11 and the connection state selection unit provided in the hands-free device 12 includes a common connection unit and a signal selection unit. As shown in FIG. 1, when the portable device 11 is connected to the hands-free device 12, the connection between the portable device 11 and the hands-free device 12 is transmitted to a connection state selection unit provided in the portable device 11. This is achieved by interconnecting the included common connection unit and the common connection unit included in the connection state selection unit provided in the hands-free device 12.
[0028]
The signal selection unit included in the connection state selection unit included in the portable device 11 and the signal selection unit included in the connection state selection unit included in the hands-free device 12 are paired with each other. A signal from the hands-free device transmitting / receiving unit is supplied to the transmitting / receiving unit provided in the hands-free device 12 through the common connection unit in each of the portable device 11 and the hands-free device 12, and is provided in the hands-free device 12. A state in which a signal from the transmission / reception unit is supplied to the hands-free device transmission / reception unit provided in the mobile device 11 through a common connection unit in each of the mobile device 11 and the hands-free device 12; Signals from the general control unit provided in the portable device 11 and the hands-free device 12 pass through a common connection unit. In addition, while being supplied to the navigation control unit provided in the navigation device 13, the signal from the map information transmitting unit provided in the navigation device 13 is transmitted through a common connection unit in each of the portable device 11 and the hands-free device 12. The state to be supplied to the map information memory unit provided in the portable device 11 is selectively taken.
[0029]
The signal from the hands-free device transmission / reception unit provided in the portable device 11 is provided in the hands-free device 12 by the signal selection unit included in the connection state selection unit provided in each of the portable device 11 and the hands-free device 12. When the signal from the transmission / reception unit provided in the hands-free device 12 is supplied to the hands-free device transmission / reception unit provided in the portable device 11, the signal is supplied to the portable device 11. The wireless transmission / reception of a telephone signal between the main transmission / reception unit and, for example, a local wireless station in a public telephone communication system through the antenna 15 is performed using the voice output unit and the voice input unit provided in the hands-free device 12. Will be done.
[0030]
In addition, the signal from the integrated control unit provided in the portable device 11 is transmitted to the navigation device 13 by the signal selection unit included in the connection state selection unit provided in each of the portable device 11 and the hands-free device 12. When a signal from the map information transmission unit provided in the navigation device 13 is supplied to the map information memory unit provided in the portable device 11 while being supplied to the control unit, the map provided in the navigation device 13 A map information signal selected according to a signal from the general control unit provided in the portable device 11 is transmitted from the information transmitting unit, and the selected map information signal is stored in a map information memory unit provided in the portable device 11. Is stored. At this time, the map information signal stored in the map information memory unit provided in the portable device 11 is, NaIt represents road map data relating to a road map in a relatively small area including the current position of the mounted vehicle detected by the position detection unit provided in the navigation device 13.
[0031]
The portable device 11 is used alone when the connection with the hands-free device 12 is released from the state of being connected to the hands-free device 12 as shown in FIG. It fulfills the function of. In such a case, the portable device 11 is provided with wireless transmission and reception of telephone signals through the antenna 15 between the main transmitting / receiving unit provided in the portable device 11 and, for example, a local wireless station in a public telephone communication system. This is performed using an audio input unit and an audio output unit. Further, the map information signal stored in the map information memory unit provided in the portable device 11 is read, and the map information signal read from the map information memory unit is read in the image display unit provided in the portable device 11. Is performed based on the map image. Further, an image display of the current position of the mobile device 11 detected by the position detection unit provided in the mobile device 11 is performed on the image display unit. One or both of the road map data represented by the map information signal read from the map information memory unit and the position data obtained from the position detection unit may be transmitted through the main transmission / reception unit provided in the portable device 11. Taken as needed.
[0032]
FIG. 2 shows, in more detail, the respective configurations of the portable device 11, which is an example of the map information utilization device having the telephone function according to the present invention shown in FIG. 1, and the hands-free device 12 and the navigation device 13. . In the state of the portable device 11, the hands-free device 12, and the navigation device 13 shown in FIG. 2, the portable device 11 is connected to the hands-free device 12.
[0033]
The hands-free device 12 shown in FIG. 2 includes a common connection unit 21 and a signal selection unit 22 that form a connection state selection unit corresponding to the connection state selection unit in the portable device 11. The common connection portion 21 is provided with connection terminals 21A and 21B. In addition, the signal selecting unit 22 includes two interlocked movable contacts 23a and 24a, selection contacts 23b and 23c that the movable contact 23a selectively contacts, and a selection contact 24b that the movable contact 24a selectively contacts. 24c.
[0034]
The two movable contacts 23a and 24a interlocked in the signal selection unit 22 are in a state (a state shown in FIG. 2) in which the movable contact 23a contacts the selection contact 23c and the movable contact 24a contacts the selection contact 24c. As a normal state, only in a specific case, the movable contact 23a contacts the selection contact 23b and the movable contact 24a contacts the selection contact 24b. The movable contact 23a is connected to the connection terminal 21A in the common connection part 21 and the movable contact 24a is connected to the connection terminal 21B in the common connection part 21.
[0035]
A transfer signal SHT based on a digital audio signal accompanied by predetermined information data transmitted from a hands-free device transmitting / receiving unit 56 provided in the portable device 11 described later is provided to the selection contact 23c of the signal selecting unit 22. Derived according to the situation. When the transfer signal SHT is derived to the selection contact 23c, the transfer signal SHT is received by the transmission / reception unit 25, and digital reproduction including predetermined information data and a digital audio signal reproduced from the transmission / reception unit 25 based on the transfer signal SHT. An output DXB is obtained.
[0036]
The digital reproduction output DXB obtained from the transmission / reception unit 25 is supplied to the hands-free control unit 26. In the hands-free control unit 26, information data obtained based on the digital reproduction output DXB is subjected to predetermined control, and a digital audio signal DB based on the digital reproduction output DXB is transmitted from the hands-free control unit 26, It is supplied to a digital / analog (D / A) converter 27. In the D / A converter 27, the digital audio signal DB is converted into an analog signal to form an audio signal QB, and the audio signal QB obtained from the D / A converter 27 is supplied to the speaker 28. Thereby, a sound based on the digital sound signal DB is emitted from the speaker 28.
[0037]
At this time, when the audio signal SA obtained from the microphone 29 in response to the audio input thereto is supplied to the analog / digital (A / D) conversion unit 30, the audio signal SA is output from the A / D conversion unit 30. A digital audio signal DH obtained by digitizing the SA is transmitted and supplied to the hands-free control unit 26. Thus, a digital output signal DXH including the digital audio signal DH and predetermined information data is obtained from the hands-free control unit 26 and supplied to the transmission / reception unit 25. In the transmission / reception unit 25, a transfer signal SHR based on the digital output DXH is formed, transmitted, and supplied to the selection contact 24c in the signal selection unit 22.
[0038]
In such a hands-free device, a portion including the D / A converter 27 and the speaker 28 forms an audio output portion, and a portion including the microphone 29 and the D / A converter 30 forms an audio input unit. Is formed.
[0039]
Further, in the navigation device 13 shown in FIG. 2, the current position of the onboard vehicle using a GPS signal from an artificial satellite in a global positioning system (GPS) which is a radio navigation system using an artificial satellite. Is provided. In the position detection unit 31, a GPS output signal SG obtained by subjecting the GPS signal received through the antenna 14 to processing by the GPS signal reception processing unit 32 is supplied to the current position detection unit 33.
[0040]
In the current position detection unit 33, a GPS output signal SG from the GPS signal reception processing unit 32, a detection output indicating the traveling speed of the mounted vehicle obtained from the input position data, a vehicle speed sensor provided in the mounted vehicle, and a mounted output. Based on various data including a detection output and the like corresponding to the direction of the mounted vehicle obtained from a geomagnetic sensor provided in the vehicle, and road map data DM obtained from the map data storage unit 34, the mounted vehicle Is automatically detected sequentially as a position on the road map represented by the map data DM, and position data DP relating to the detected current position is formed. Then, position data DP representing the current position of the mounted vehicle is obtained from the current position detection unit 33, and is supplied to the traveling route setting unit 35, the image display data synthesizing unit 36, and the navigation control unit 45. .
[0041]
An input operation unit 46 is connected to the navigation control unit 45, and various control command signals DIN from the input operation unit 46 are supplied to the navigation control unit 45. The navigation control unit 45 performs an operation according to the content of the control command signal DIN, for example, an operation of supplying a control signal CM for transmitting the road map data DM to the map data storage unit 34 according to the control command signal DIN. Is performed, whereby the road map data DM is obtained from the map data storage unit 34. The map data storage unit 34 includes, for example, a disk player on which a CD-ROM storing various map data is mounted, and sends out map data read from the CD-ROM as map data DM.
[0042]
The travel route setting unit 35 includes, in addition to the position data DP from the current position detection unit 33, the map data DM from the map data storage unit 34, and other data as necessary, such as destination data. Is also supplied. Then, in the traveling route setting unit 35, the optimal traveling route for the on-board vehicle on the road map represented by the map data DM is set as the scheduled passage route of the on-board vehicle. Then, traveling route data DQ representing the set scheduled passage is obtained from the traveling route setting unit 35, and is supplied to the image display data combining unit 36. The map data DM from the map data storage unit 34 is also supplied to the image display data synthesis unit 36.
[0043]
In the image display data combining unit 36, the position data DP from the current position detecting unit 33, the travel route data DQ from the travel route setting unit 35, and the map data DM from the map data storage unit 34 are combined as appropriate. Image display data DZ is formed. Then, the image display data DZ obtained from the image display data synthesizing unit 36 is supplied to the video signal forming unit 37, where the video signal SV corresponding to the image display data DZ is formed. The video signal SV obtained from the forming unit 37 is supplied to the image display unit 38. The image display unit 38 includes, for example, a flat liquid crystal image display surface, and displays a navigation image based on the video signal SV on the liquid crystal image display surface.
[0044]
The navigation control unit 45 receives a signal derived in accordance with the state of the movable contact 24 a in the signal selection unit 22 provided in the hands-free device 12. The transmitted control signal CMX is supplied through a low-pass filter (LPF) 57. When the control signal CMX is supplied to the navigation control unit 45, the navigation control unit 45 supplies the map data storage unit 34 with the control signal CML for transmitting the road map data selected according to the control signal CMX. Perform the operation. Thereby, the road map data DML selected according to the control signal CMX is obtained from the map data storage unit 34 and supplied to the map information transmission unit 39.
[0045]
In the map information transmitting section 39, a map information signal SMX representing the selected road map data DML from the map data storage section 34 is formed, and the map information signal SMX is output to a signal selecting section provided in the hands-free device 12. 22 to the selection contact 23b.
[0046]
Further, when the control signal CMX is supplied to the navigation control unit 45, the navigation control unit 45 supplies the control signal CS to the signal selection unit 22 provided in the hands-free device 12, and the signal selection unit 22 23a is brought into contact with the selection contact 23b, and the movable contact 24a is brought into contact with the selection contact 24b.
[0047]
In the portable device 11 shown in FIG. 2 which is an example of the map information utilization device having the telephone function according to the present invention, a connection state selection unit corresponding to the connection state selection unit in the hands-free device 12 is formed. , A common connection unit 41 and a signal selection unit 42. The common connection portion 41 is provided with connection terminals 41A and 41B. In addition, the signal selection unit 42 includes two movable contacts 43a and 44a that are linked with each other, selection contacts 43b and 43c that the movable contact 43a selectively contacts, and a selection contact 44b that the movable contact 44a selectively contacts. 44c.
[0048]
The two movable contacts 43a and 44a interlocked in the signal selection section 42 are in a state (a state shown in FIG. 2) in which the movable contact 43a contacts the selection contact 43c and the movable contact 44a contacts the selection contact 44c. As a normal state, only in a specific case, the movable contact 43a contacts the selection contact 43b and the movable contact 44a contacts the selection contact 44b. The movable contact 43a is connected to the connection terminal 41A of the common connection part 41, and the movable contact 44a is connected to the connection terminal 41B of the common connection part 41.
[0049]
When the portable device 11 is connected to the hands-free device 12, the connection terminals 41 </ b> A and 41 </ b> B in the common connection portion 41 are connected to the connection terminals 21 </ b> A and the connection terminals in the common connection portion 21 provided in the handsfree device 12. 21B, respectively.
[0050]
Under the circumstances, the portable device 11 is used together with the hands-free device 12 to perform a hands-free response, and the map information from the map information transmission unit 39 provided in the navigation device 13. A state in which the signal SMX is taken in and stored in the built-in map information memory unit 60 is selectively taken. The selection between the state in which such a hands-free response is performed and the state in which the map information signal SMX is stored in the map information memory unit 60 is determined by the input operation unit 51 connected to the overall control unit 50. Made by operation. That is, according to the content of the command data DK supplied from the input operation unit 51 to the general control unit 50 by the operation on the input operation unit 51, the state in which the hands-free response is performed and the map information signal SMX are stored in the map information memory. The state to be stored in the unit 60 is selected.
[0051]
When a state in which the portable device 11 is used together with the hands-free device 12 to perform a hands-free response is selected, the switch control signal CSW supplied from the general control unit 50 to each of the switches 52 and 53 is selected. Causes the switch 52 to assume the state where the movable contact 52a is connected to the selection contact 52b (the state shown in FIG. 2), and the switch 53 to connect the movable contact 53a to the selection contact 53b (FIG. 2). (The state shown in Fig. 3).
[0052]
At this time, the two movable contacts 43a and 44a linked in the signal selection unit 42 are maintained in a normal state where the movable contact 43a contacts the selection contact 43c and the movable contact 44a contacts the selection contact 44c. The two movable contacts 23a and 24a interlocking in the signal selection unit 22 provided in the hands-free device 12 are maintained in a normal state in which the movable contact 23a contacts the selection contact 23c and the movable contact 24a contacts the selection contact 24c. You.
[0053]
Under such circumstances, for example, when a telephone signal SDR from a local wireless station is wirelessly received by the main transmitting and receiving unit 55 through the antenna 15, predetermined information data DID based on the telephone signal SDR is obtained from the main transmitting and receiving unit 55. The digital audio signal DB reproduced on the basis of the telephone signal SDR is transmitted to the general control unit 50 and supplied to the hands-free device transmitting / receiving unit 56 through the switch 52. At this time, the predetermined information data DLH from the general control unit 50 is also supplied to the hands-free device transmitting / receiving unit 56, and the hands-free device transmitting / receiving unit 56 converts the digital audio signal DB with the predetermined information data DLH into a digital audio signal DB. A transfer signal SHT based on the transfer signal SHT is formed, and the transfer signal SHT is transmitted to the selection contact 43 c of the signal selection unit 42.
[0054]
The transfer signal SHT transmitted from the hands-free device transmitting / receiving unit 56 is transmitted from the selection contact 43c in the signal selection unit 42 to the movable contact 43a in the signal selection unit 42, the connection terminal 41A in the common connection unit 41, and the hands-free device 12. The connection terminal 21A in the provided common connection unit 21 and the movable contact 23a in the signal selection unit 22 provided in the hands-free device 12 are led to the selection contact 23c in the signal selection unit 22 provided in the hands-free device 12. The data is received by the transmitting / receiving unit 25 provided in the hands-free device 12. As a result, the sound based on the digital sound signal DB is emitted from the speaker 28 provided in the hands-free device 12 as described above.
[0055]
In this case, in the hands-free device 12, the transfer signal SHR supplied from the transmission / reception unit 25 to the selection contact 24c in the signal selection unit 22 is transferred from the selection contact 24c in the signal selection unit 22 to the movable contact 24a in the signal selection unit 22. The connection terminal 21B of the common connection portion 21 provided in the hands-free device 12, the connection terminal 41A of the common connection portion 41, and the movable contact 44a of the signal selection portion 42 are led to the selection contact 44c of the signal selection portion 42. , Is received by the hands-free device transmitting / receiving unit 56.
[0056]
From the hands-free device transmitting / receiving unit 56, predetermined information data DI based on the transfer signal SHR is obtained and supplied to the general control unit 50, and a digital audio signal DH reproduced based on the transfer signal SHR is transmitted. , And supplied to the main transmission / reception unit 55 through the switch 53. At this time, the predetermined information data DOD from the general control unit 50 is also supplied to the main transmission / reception unit 55, and the main transmission / reception unit 55 forms a telephone signal SDT based on the digital audio signal DH accompanied by the predetermined information data DOD. Then, the telephone signal SDT is transmitted through the antenna 15 to the local radio station.
[0057]
In this manner, the wireless transmission of the telephone signal SDT and the wireless reception of the telephone signal SDR via the antenna 15 between the portable device 11 and the local wireless station in the public telephone communication system are performed by the voice input provided in the hands-free device 12. The operation is performed with a hands-free response in which a microphone 29 forming a unit and a speaker 28 forming an audio output unit are used.
[0058]
In the above description, transfer signals SHT and SHR based on a digital audio signal are transmitted between the hands-free device transmitting / receiving unit 56 provided in the portable device 11 and the transmitting / receiving unit 25 provided in the hands-free device 12. Is transmitted and received, and the audio signal is directly transmitted and received between the hands-free device transmitting / receiving unit 56 provided in the portable device 11 and the transmitting / receiving unit 25 provided in the hands-free device 12. It is also possible for the map information utilization device having the telephone function according to the present invention to transmit and receive the hands-free device transmitting / receiving unit 56 provided in the portable device 11 and the transmitting / receiving unit 25 provided in the hands-free device 12. A mode in which an audio signal is directly transmitted and received between them can be adopted.
[0059]
On the other hand, in the portable device 11, a state is selected in which the map information signal SMX from the map information transmission unit 39 provided in the navigation device 13 is taken in and stored in the built-in map information memory unit 60. In this case, the overall control unit 50 supplies the control signal CSS to the signal selection unit 42, and the movable contact 43a contacts the selection contact 43b, and the movable contact 44a contacts the selection contact 44b. Let the state take.
[0060]
In such a case, the overall control unit 50 sends the control signal CMX to the selection contact 44b of the signal selection unit 42. The control signal CMX is connected from the selection contact 44b in the signal selection unit 42 to the movable contact 44a in the signal selection unit 42, the connection terminal 41B in the common connection unit 41, and the connection in the common connection unit 21 provided in the hands-free device 12. The terminal 21B is led out to the movable contact 24a of the signal selector 22 provided in the hands-free device 12 and supplied to the navigation control unit 45 provided in the navigation device 13 through the LPF 57.
[0061]
Thereby, as described above, the control signal CS is supplied from the navigation control unit 45 provided in the navigation device 13 to the signal selection unit 22 provided in the hands-free device 12, and the signal provided in the hands-free device 12 is provided. The selection unit 22 is configured to assume a state in which the movable contact 23a contacts the selection contact 23b and the movable contact 24a contacts the selection contact 24b, and the map information transmission unit provided in the navigation device 13 together therewith. From 39, a map information signal SMX representing the road map data DML selected according to the control signal CMX is transmitted, and the map information signal SMX is transmitted to the selection contact 23b in the signal selection unit 22 provided in the hands-free device 12. Supplied to
[0062]
In such a case, the road map data DML selected according to the control signal CMX is, NaRoad map data on a road map in a relatively small area including the current position of the mounted vehicle detected by the position detection unit 31 provided in the navigation device 13TosaIt is.
[0063]
The map information signal SMX supplied to the selection contact 23b of the signal selection unit 22 provided in the hands-free device 12 is transmitted from the selection contact 23b of the signal selection unit 22 to the movable contact 23a of the signal selection unit 22 and the hands-free device. 12, the connection terminal 21A of the common connection unit 21, the connection terminal 41A of the common connection unit 41, and the movable contact 43 a of the signal selection unit 42 are led to the selection contact 43 b of the signal selection unit 42, and are stored in the map information memory. It is supplied to the unit 60.
[0064]
At this time, a write control signal CW from the overall control unit 50 is supplied to the map information memory unit 60. As a result, in the map information memory unit 60, the map information signal SMX supplied through the selection contact 43b in the signal selection unit 42 is written and stored according to the write control signal CW. In this manner, the portable device 11 performs an operation of fetching the map information signal SMX from the map information transmitting unit 39 provided in the navigation device 13 and storing it in the built-in map information memory unit 60.
[0065]
The map information signal SMX stored in the map information memory unit 60 is selected from the road map data stored in the map data storage unit 34 provided in the navigation device 13., TowerRoad map in a relatively small area including the current position of the on-board vehicleRoadSince it is assumed that the road map data is represented, it does not require a large memory capacity to be stored in the map information memory unit 60. Therefore, the map information memory unit 60 does not need to have a large memory capacity and a large-scale associated circuit unit.
[0066]
From the state where the portable device 11 is connected to the hands-free device 12 as shown in FIG. 2, the common connection portion 41 is released from the connection state with the common connection portion 21 provided on the hands-free device 12, and the hands are removed. It is in a state where it is detached from the free device 12, and when used alone, an operation state for wirelessly transmitting and receiving telephone signals to and from a local wireless station in a public telephone communication system, a map information memory unit An operation state or the like for reading and using the map information signal SMX stored in the map information memory 60 from the map information memory unit 60 is set according to the operation of the input operation unit 51.
[0067]
When the mobile device 11 used alone is set to an operation state for wirelessly transmitting and receiving telephone signals to and from a local wireless station in a public telephone communication system, the general control unit 50 sends a signal to each of the switches 52 and 53. The supplied switch control signal CSW causes the switch 52 to assume a state where the movable contact 52a is connected to the selection contact 52c, and causes the switch 53 to assume a state where the movable contact 53a is connected to the selection contact 53c. You.
[0068]
Then, an audio signal QA obtained in response to an audio input thereto from the microphone 61 is supplied to an A / D converter 62 and digitized, and a digital audio signal DA transmitted from the A / D converter 62 is converted into a signal. The signal is supplied to the main transmitting / receiving section 55 through the adding section 63 and further through the switch 53. In this case, the main control unit 50 is also supplied with predetermined information data DOD from the general control unit 50.
[0069]
Thereby, in the main transmitting / receiving section 55, a telephone signal SDT based on the digital audio signal DA with the predetermined information data DOD is formed, and the telephone signal SDT is wirelessly transmitted from the main transmitting / receiving section 55 to the local radio station through the antenna 15. Is done.
[0070]
When the telephone signal SDR from the local wireless station is wirelessly received by the main transmitting / receiving unit 55 through the antenna 15, predetermined information data DID based on the telephone signal SDR is obtained from the main transmitting / receiving unit 55, and the overall control unit 50 , And a digital audio signal DB reproduced based on the telephone signal SDR is sent out and supplied to the D / A converter 64 through the switch 52. In the D / A converter 64, the digital audio signal DB is converted into an analog signal, and the audio signal QB obtained from the D / A converter 64 is supplied to the speaker 65. As a result, a sound based on the digital sound signal DB is emitted from the speaker 65.
[0071]
Under such circumstances, the microphone 61 and the A / D conversion unit 62 form an audio input unit that takes a state of supplying an audio signal QA according to the audio input to the main transmission / reception unit 55, and further includes a D / A The conversion unit 64 and the speaker 65 form an audio output unit that takes a state of generating an audio output according to the reproduced digital audio signal DB obtained from the main transmission / reception unit 55. Then, the wireless transmission of the telephone signal SDT and the wireless reception of the telephone signal SDR through the antenna 15 between the mobile device 11 and a local wireless station in the public telephone communication system form a voice input unit provided in the mobile device 11. This is performed using a microphone 61 and a speaker 65 forming an audio output unit.
[0072]
When the operation state in which the map information signal SMX stored in the map information memory unit 60 is read from the map information memory unit 60 and used is set in the portable device 11 used alone, the overall control unit 50 sends the map information memory The read control signal CR is supplied to the unit 60. Thereby, the map information signal SMX stored therein is read from the map information memory unit 60 in accordance with the read control signal CR, and supplied to the image display data combining unit 66.
[0073]
In such a case, the position detection unit 70 incorporated in the portable device 11 is set to an operation state by a control signal CPT supplied from the general control unit 50 in accordance with an operation on the input operation unit 51, if necessary. When the position detection unit 70 is in the operating state, the GPS output signal SG obtained by performing processing by the GPS signal reception processing unit 71 on the GPS signal received through the antenna 16 is transmitted to the current position detection unit 72. Supplied. The current position detection unit 72 detects the current position of the portable device 11 based on the GPS output signal SG from the GPS signal reception processing unit 71, and forms position data DPT relating to the detected current position. Then, position data DPT representing the current position of the portable device 11 is obtained from the current position detection unit 72, and is supplied to the image display data synthesis unit 66.
[0074]
In the image display data synthesizing section 66, the position data DPT from the current position detecting unit 72 and the map information signal SMX from the map information memory section 60 are appropriately synthesized to form image display data DZT. Then, the image display data DZT obtained from the image display data synthesizing unit 65 is supplied to the video signal forming unit 74 through the data adding unit 73, and the video signal forming unit 74 generates the video signal SVT corresponding to the image display data DZT. The video signal SVT formed and obtained from the video signal forming unit 74 is supplied to the image display unit 75. The image display unit 75 is provided with, for example, a relatively small planar liquid crystal image display surface, and the liquid crystal image display surface corresponds to road map data represented by the map information signal SMX based on the video signal SVT. The displayed road map is displayed as an image, and the current position of the portable device 11 represented by the position data DPT is displayed.
[0075]
If the position detection unit 70 is not activated when the map information signal SMX stored therein from the map information memory unit 60 is read in accordance with the read control signal CR, the image obtained from the image display data synthesis unit 66 The display data DZT is based on the map information signal SMX, and only the road map corresponding to the road map data represented by the map information signal SMX is displayed on the liquid crystal image display surface of the image display unit 75.
[0076]
The map information signal SMX read from the map information memory unit 60 and the position data DPT obtained from the current position detection unit 72 are also supplied to the overall control unit 50. The overall control unit 50 receives a switch control signal CSW supplied to each of the switch 52 and the switch 53 in response to an operation on the input operation unit 51, in a state where the movable contact 52a is connected to the switch 52 and the selection contact 52c. And the switch 53 takes the state where the movable contact 53a is connected to the selection contact 53c, and the map information signal SMX read from the map information memory unit 60 and the position obtained from the current position detection unit 72. The information data DMZ is formed based on each or one of the data DPT. The information data DMZ obtained from the central control unit 50 is supplied to the main transmitting / receiving section 55 through the signal adding section 63 and further through the switch 53, and is transmitted from the main transmitting / receiving section 55 through the antenna 15.
[0077]
Further, the control unit 50 forms information display data DMK in accordance with an operation on the input operation unit 51, and supplies the information display data DMK to the video signal forming unit 74 through the data adding unit 73. In such a case, a video signal SVT corresponding to the information display data DMK is obtained from the video signal forming unit 74 and supplied to the image display unit 75. Thereby, information display based on the information display data DMK is performed on the liquid crystal image display surface portion provided in the image display portion 75.
[0078]
【The invention's effect】
As is apparent from the above description, the map information utilization device having the telephone function according to the present invention is used.In placeThere is a memory capable of storing a map information signal without using a separate connection unit by skillfully utilizing a connection unit for interconnecting a hands-free device transmission / reception unit and a hands-free device installed in a vehicle. A state is obtained in which the unit and the map information transmitting unit provided in the navigation device provided in the vehicle are interconnected.
[0079]
When the memory unit capable of storing the map information signal and the map information transmitting unit included in the navigation device provided in the vehicle are interconnected, the navigation device provided in the vehicle is provided in the memory unit capable of storing the map information signal. Of the map information signal that can be transmitted by the map information source based on the map informationRepresents map information for a given area range including the current location of the vehicleThe part is appropriately selected and stored. Therefore, the memory unit that can store the map information signalIncluding the current position of the vehicleA map information signal, which is assumed to represent map information for a predetermined area range, is stored and stored without requiring a large memory capacity and a large-scale associated circuit unit.LandThe figure information signal is provided for use, for example, as a map image display based on the figure information signal.
[0080]
Therefore, a map information utilization device having a telephone function according to the present invention is provided.PlaceIt is possible to transmit and receive telephone signals to function as a mobile phone device, and to transmit and receive a voice signal or a transfer signal based on a voice signal to and from a hands-free device installed in a vehicle. A large memory for the built-in memory unit without requiring a complicated connection mechanism between the hands-free device transmission / reception unit, the hands-free device installed in the vehicle, and the navigation device provided in the vehicle. Obtained from the map information transmission unit provided in the navigation device without the need for increasing the capacity and increasing the scale of the circuit unit associated with the memory unitPrescribed including current position of vehicleFor example, the map information relating to the area can be effectively used in a mode in which a map image is displayed based on the map information.
[0081]
furtherAnd a map information utilization device having a telephone function according to the present invention.In placeIfWhen reading and using a map information signal representing map information for a predetermined area range including the current position of the vehicle stored in the memory unit and using the same, if necessary, the current position detection unit detects the map information signal on the image display unit. The current position of the portion including the displayed image display unit, that is, the current position of the map information utilization device having the telephone function according to the present invention can be displayed so as to be superimposed on the map image based on the map information signal.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an example of a map information utilization device having a telephone function according to the present invention, together with a navigation device provided in a vehicle and a hands-free device provided in the vehicle.
FIG. 2 is a block diagram showing an example of a map information utilizing apparatus having a telephone function according to the present invention shown in FIG. 1, a hands-free apparatus, and a navigation apparatus in more detail.
[Explanation of symbols]
11 Portable device
12 Hands-free equipment
13 Navigation device
14, 15, 16 antenna
21, 41 Common connection part
22, 42 signal selector
25 Transceiver
26 Hands-free control unit
27,64 D / A converter
28,65 speakers
29,61 microphone
30,62 A / D converter
31, 70 position detector
32,71 GPS signal reception processing unit
33,72 Current position detection unit
34 Map data storage
35 Travel route setting section
36,66 Image display data synthesis section
37,74 video signal forming unit
38,75 Image display unit
39 Map information sending section
45 Navigation control unit
46, 51 input operation unit
50 Overall control unit
52,53 switch
55 Main transceiver
56 Hands-free device transceiver
57 LPF
60 Map information memory

Claims (6)

A main transmitting and receiving unit for transmitting and receiving telephone signals;
An audio input unit that takes a state of supplying an audio signal according to an audio input to the main transmission / reception unit;
An audio output unit that takes a state of generating an audio output according to the reproduced audio signal obtained from the main transmission / reception unit;
Is connected to the hands-free device installed in a vehicle via a connecting portion, a transfer signal based on the reproduction speech signal or the reproduction speech signal and transmits to the hands-free device, the audio signal transmitted from the hands-free device Or, receiving a transfer signal based on an audio signal, a hands-free device transmitting and receiving unit that takes an operation state of supplying the received audio signal or a transfer signal based on the audio signal to the main transmitting and receiving unit,
A memory unit capable of storing a map information signal,
Through the connection portion interconnects the state interconnecting the said pair hands-free device transceiver unit and the hands-free device, and a map information delivery unit provided in the navigation device provided in the memory unit and the vehicle a connection state selecting unit to take the state selectively,
When the memory unit and the map information transmitting unit are interconnected by the connection state selecting unit , a map representing map information about a predetermined area including the current position of the vehicle transmitted from the map information transmitting unit. A control unit for setting an operation state in which an information signal is stored in the memory unit;
A state in which an audio signal obtained from the audio input unit is supplied to the main transmission / reception unit, and a reproduction audio signal obtained from the main transmission / reception unit is supplied to the audio output unit; An audio signal or a transfer signal based on the reproduced audio signal is supplied to the hands-free device transmitting / receiving unit, and an audio signal obtained from the hands-free device transmitting / receiving unit or a transfer signal based on the audio signal is transmitted to the main transmitting / receiving unit. A signal supply state selection unit for selectively taking the state supplied to
An image display unit that displays a map image based on the map information signal read from the memory unit;
A current position detection unit that detects a current position of a portion including the image display unit;
With
The telephone function, wherein the image display unit can display the current position detected by the current position detection unit in a manner superimposed on a map image based on the map information signal read from the memory unit. Map information utilization device equipped. The connection state selection unit includes a common connection unit, a signal from the hands-free device transmitting / receiving unit is transmitted to the hands-free device installed in the vehicle through the common connection unit, and a signal from the hands-free device is transmitted. Is received by the hands-free device transmitting / receiving unit through the common connection unit, and a predetermined map information signal from a map information transmission unit included in the navigation device provided in the vehicle is transmitted through the common connection unit to the memory unit. 2. The map information utilization device having a telephone function according to claim 1, wherein the state stored in the map information is selectively taken . The connection state selection unit supplies a signal from the hands-free device transmitting / receiving unit to the common connection unit, and outputs a signal from the hands-free device installed in the vehicle obtained through the common connection unit to the hands-free device. A state in which the map information signal is supplied to the free device transmission / reception unit and a predetermined map information signal obtained from the map information transmission unit provided in the navigation device installed in the vehicle, which is obtained through the common connection unit, and is supplied to the memory unit. 3. The apparatus according to claim 2 , further comprising a signal selection unit for selectively taking a signal . The control unit, when the memory unit and the map information transmission unit provided in the navigation device provided in the vehicle are interconnected by the connection state selection unit, the navigation device, the predetermined information from the map information transmission unit A map having a telephone function according to any one of claims 1 to 4, wherein a request signal for requesting setting of a state in which a map information signal is transmitted is supplied through the connection state selection unit. Information utilization device. The control unit, the map information use device map information signal read from the memory section is equipped with telephone function according to claim 1 Symbol placement and sets the state to be transmitted through the main transceiver. A predetermined map information signal transmitted from the map information transmission unit provided in the navigation device provided in the vehicle and stored in the memory unit is a map in which the map information signal transmitted from the map information transmission unit can represent. map information usage device with a telephone function according to claim 1, characterized in that representing the map information having the same scale as having the largest scale of the information.

Images