JP3022876U - Freehand calling system for mobile phones - Google Patents

Abstract

(57) [Abstract] (Correction) [PROBLEMS] To provide an improved freehand communication system for mobile phones. SOLUTION: A communication device 31 having a speaker and an operation circuit is built in, a microphone 35 is connected to the communication device by a cord 352, and a mobile phone is similarly connected to the communication device by a cord. Since the intercom is connected to the plug 33 by the flexible connection 32, the intercom with speaker is adjustably fixed directly to the cigarette lighter electric lighter socket of the vehicle. Practically replace the microphone with a cordless one.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to an improved freehand communication system for mobile phones, and more specifically to a system having a communication device having a speaker and an operation circuit. This communication device of the present invention can be connected to a socket of an electric lighter for igniting a cigarette of an automobile by detachably engaging a plug, and securely held in place to a mobile phone and a microphone. Being connected, the car driver can handle the phone freehand.

[0002]

[Prior art]

 Referring to FIG. 1, there is shown a conventional conventional freehand communication system, which is provided with a stand 11 having two external cords 121 and 131, The cord 121 is connected to the speaker 12, and further connected to the microphone 14 by the cord 141, and the cord 131 is connected to the plug 13. Since the plug 13 is inserted into the lighter socket of the automobile, the electric power of the automobile can be supplied to the telephone installation base 11 and further to the telephone by the plug. The installation base 11 must be installed in a suitable place in the vehicle by means of screws 111. Such conventional technology has the following drawbacks.

1. The installation base 11 is relatively bulky, and it is not easy to find a suitable place to fix the installation base 11 in a car such as a small car. 2. Since the speaker 12 is installed at a certain distance from the installation table 11 and is connected to the installation table 11 by a cord, the speaker 12 can be arranged in a suitable place. 3. Since the number of cords is relatively large and long, it impedes the driver's freedom of movement inside the vehicle. 4. Since the installation table 11 is firmly fixed inside the vehicle, it is difficult to remove it when the vehicle is sold or transferred. Therefore, the practical application range of such a mounting base is limited.

[0004]

[Problems to be solved by the device]

 A first object of the present invention is to provide a communication device having a speaker and an operation circuit inside and further having a plug means at one end, the communication device being directly connected to an electric lighter socket for igniting a cigarette of an automobile. It is to provide an improved free-hand telephone system for mobile phones that can be securely held in place.

Another object of the present invention is to provide an improved mobile phone freehand communication system having a communication device directly connected to an electric lighter socket for cigarette ignition by an adjustable pivoting connection. is there.

Yet another object of the present invention is an improved freehand telephone call system for a mobile phone having an intercom that connects directly to an electric lighter socket for cigarette ignition by an adjustable and flexibly bendable connection. To provide.

[0007]

[Means for Solving the Problems]

 According to a first aspect of the present invention, in a freehand communication system for a mobile phone, which includes a communication device and a microphone connected to the communication device, the communication device includes a charging circuit, an acoustic frequency amplification circuit, and a built-in speaker. And a plug that is detachably connected to an electric lighter socket for cigarette ignition of an automobile is attached to one end of the above-mentioned communication device, and the plug and the communication device are connected to a flexible connection portion. Thus, the communication device is connected to each other so that the communication device can be positionally adjusted in use.

According to a second aspect of the present invention, the connecting portion has a bending means having a U-shaped portion connected to the plug having a pair of holes and a projecting rod extending from the communication device. Since the U-shaped portion and the protruding rod are connected by the pin member that passes through the hole of the U-shaped portion, the communication device can be flexibly adjusted.

A third aspect of the invention is characterized in that the microphone is a cordless one.

According to the free-hand communication system for a mobile phone of the present invention, the communication device is internally provided with the operation circuit including the speaker and the charging circuit, and the plug means is provided at one end. It does not require a telephone installation base like the one like, and can be prepared to mount the telephone in a space-saving and suitable position, and at the same time, the plug connected to the communication device has a flexible connection part. By mounting via the gear, the adjustment at the mounting position is extremely easy, and the positioning can be appropriately performed even in a narrow space where the gear shift lever (transmission means) is arranged.

[0011]

[Embodiment of device]

 An embodiment of the present invention will be described below with reference to FIG. The free-hand communication system for a mobile phone of the present invention comprises a communication device 31, a microphone 35 connected to the communication device 31, and a plug-type connector 34 connected to the mobile phone T shown in FIG.

The communication device 31 is mainly equipped with an operation circuit (not shown) including an acoustic frequency amplification circuit, a speaker, and a charging circuit, and has a plug-type connector 34 arranged at the other end. It is connected to the mobile phone T by an external cord 36. Further, the microphone 35 is connected to the communication device 31 by a cord 352. A plug 33 is connected to one end of the communication device 31 via a connecting portion 32 that is elastically flexible and can be firmly held in place.

The microphone 35 having the sandwiching means 351 arranged at one end of the cord 352 is connected to the communication device 31 by the cord 352 to which the plug means 353 is attached. The plug means 353 is provided with a plug pin 353a that engages with a socket hole (not shown) on the communication device 31, and connects the microphone 35 to the operation circuit of the communication device 31. The plug-type connector 34 has an insertion plug piece 341 for connecting to the mobile phone T at one end, and is connected to a cord 36 connected to the communication device 31 at the other end.

As shown in FIG. 4, in order for the present invention to be installed in an automobile so that the driver can operate the mobile phone in a freehand manner, first, the plug 33 of the communication device 31 is installed. Engages the lighter socket of the car and gets power. In order to effectively transmit the voice of the user, the pinching means 351 of the microphone 35 can fix the microphone 35 at a position adjacent to the driver's mouth such as a dashboard of an automobile or a sunshade. To Then, the cord 36, which is connected to the communication device 31 at one end, is connected to the mobile phone T by the plug piece 341 of the plug connector 34 for telephone. Thus, the assembly of the call system of the present invention is completed.

The cell phone T currently manufactured is compact in size and, as seen in FIG. 8, takes up little space and can easily be placed on a flat surface 22 of a car instrument panel or any other suitable place of choice. Can be installed in. When the call rings, the driver using the system of the present invention can hear the voice of the person who is calling on the other side of the line by the receiving speaker built in the communication device 31, Voice can also be transmitted to the other party of the telephone by the transmitting microphone 35, so that the driver can drive the vehicle without holding the telephone in his hand, which enhances driving safety while driving on the road. .

Furthermore, the communication device 31 is engaged with the cigarette lighter socket 21 of the automobile and is firmly supported in place by the plug 33. Considering the narrow space between the cigarette lighter socket 21 and the gear shift lever transmission means, if it cannot be adjusted properly, installing the intercom 31 there is not suitable for automobiles. May interfere with gear shift operations. Therefore, by installing the flexible connecting portion 32 between the communication device 31 and the plug 33, as shown in FIG. 5, the communication device 31 can be bent in any way and appropriately adjusted, and then placed in an appropriate position. Can be held firmly in place.

In another embodiment of the connecting portion shown in FIGS. 6A and 6B, a U-shaped portion 331 is formed at an end portion of the plug 33 for electric power charging, so that the above-mentioned flexibility is provided. The connecting portion 32 is replaced with a bendable connecting portion so that the plug 33 and the communication device 31 can be connected by the protruding rod 311 extending from the communication device 31 being pivotally supported by the pin 312. As a result, the communication device 31 can be flexibly moved with respect to the plug 33. Therefore, the communication device 31 is flexibly adjusted to an appropriate position so as not to interfere with the gear shift operation during driving.

In another embodiment of the present invention in FIG. 7, the microphone 35 of the previous embodiment is replaced by a cordless microphone 37 having a clamp 371. With such a microphone, it is possible to save the trouble of wiring the wire of the microphone connected to the communication device 31. As shown in FIG. 8, the microphone 37 is attached to a place similar to the place where the microphone 35 of the above-described embodiment is installed, and anywhere the driver likes.

The operating circuit of the present invention is not an important issue of the present invention and thus is not mentioned in the specification, and only the block circuit diagram corresponding to the second embodiment will be shown. The operation circuit built in the communication device 31 has an emitter, a receiver (including a speaker), and a charging circuit. When there is a telephone call and the cordless microphone's emission circuit is started manually or automatically, the cordless microphone 37 is guided by an inductive circuit to pick up the signal generated by the mobile phone itself. To be done. As the conversation progresses on the cell phone, the speaker's voice is transmitted through the microphone and through the low frequency amplifier and FM modulated oscillation of the oscillator, and again, frequency triple conversion, power amplification, impedance. The converted signal obtained from the voice of the speaker, which is processed through matching and the like, is transmitted by the antenna to achieve the transmission of the voice signal. The receiving circuit built in the communication device 31 receives the transmitted frequency signal by the antenna, and the frequency signal is subjected to high frequency amplification, intermediate frequency (mixed frequency) amplification, modulation, acoustic frequency amplification, and acoustic frequency amplification. The frequency output and the acoustic frequency generated by the receiver of the mobile phone T are amplified through a speaker and broadcast, as shown in FIG.

Referring to FIG. 11, the charging circuit of the present invention is electrically connected to the electric lighter socket 21 by the plug 33 to obtain electric power from the battery of the automobile and simultaneously charge the battery of the mobile phone T. . The amount of charging current to the mobile phone is controlled by the voltage detection circuit by monitoring the voltage variation, so that the free hand communication system for mobile phone of the present invention is properly powered.

[0021]

[Effect of device]

 According to the free-hand communication system for a mobile phone according to the present invention, the communication device is internally provided with the operation circuit including the speaker and the charging circuit, and the plug means is provided at one end. It does not require a telephone stand and makes it easy to mount the telephone in a space-saving and suitable location, and the plug connected to the intercom is connected via a flexible connection. By mounting it, adjustment at the mounting position is extremely easy, and it is possible to properly position and arrange even in a narrow space where the gear shift lever (transmission means) is arranged.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a conventional freehand communication system for a mobile phone adapted for use in an automobile.

2A and 2B show a state in which a conventional freehand communication system for a mobile phone is installed in an automobile, FIG. 2A is a schematic view thereof, and FIG.

FIG. 3 is a perspective view showing a freehand communication system for a wireless telephone of the present invention.

FIG. 4 is a schematic view showing a state in which the freehand communication system for a mobile phone of the present invention is practically installed in an automobile.

FIG. 5 is a schematic view of a first embodiment of the present invention.

FIG. 6 is a communication device showing a second embodiment of the present invention,
(A) is a side view, (b) is an enlarged cross-sectional view of the B portion.

FIG. 7 is an enlarged schematic view of components of the second embodiment of the present invention.

FIG. 8 is a schematic view showing a second embodiment of the present invention installed in an automobile.

FIG. 9 is a block diagram schematically showing a circuit configuration of an emitter of a second embodiment of the present invention.

FIG. 10 is a block diagram schematically showing a circuit configuration of a receiver according to a second embodiment of the present invention.

FIG. 11 is a block diagram schematically showing a circuit configuration of a charging circuit of the present invention.

[Explanation of symbols]

T mobile phone 21 electric lighter socket for igniting cigarettes of automobiles 31 communication device of freehand communication system for mobile phones 32 connection part 33 plug 34 plug type connector 341 insertion plug piece 35 microphone 351 pinching means 352 cord 353 plug means 353a plug pin 36 code

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Claims (3)

[Scope of utility model registration request] 1. A freehand communication system for a mobile phone, comprising a communication device and a microphone connected to the communication device, wherein the communication device includes an operation circuit including a charging circuit, an acoustic frequency amplification circuit and a built-in speaker. A plug for detachably connecting to an electric cigarette lighter socket for automobiles is attached to one end of the communication device, and the plug and the communication device are connected to each other by a flexible connection portion and used. A freehand communication system for a mobile phone, wherein the communication device is sometimes adjustable in position. 2. The connecting portion includes a bending means having a U-shaped portion connected to the plug having a pair of holes and a protruding rod extending from the communication device, and the U-shaped portion. 2. The mobile phone according to claim 1, wherein the bar and the protruding bar are connected by a pin member that passes through the hole of the U-shaped portion, so that the communication device can be flexibly adjusted. Freehand calling system. 3. The freehand communication system for a mobile phone according to claim 1, wherein the microphone is a cordless one.