JP2004180042A - Remote control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a remote control system which doesnot give a sense of incongruity to a user in remote control operation. <P>SOLUTION: A plasma display device 1 is connected to a tuner unit 3 by an AV cord 2. The plasma display device 1 is provided with a photodetecting part 1a for receiving a remote control signal from a remote control transmitter 4. The remote control signal received by the photodetecting part 1a is supplied to a signal line 5. The signal line 5 is connected to the remote control input port P of a microcomputer 3a of the tuner unit 3. The microcomputer 3a decodes the signal inputted to the remote control input port P and determines an instruction. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
[Industrial applications]
The present invention relates to a remote control system applied to a set in which, for example, a display and an image supply unit are configured separately.
[0002]
[Prior art]
A flat display such as a plasma display or a liquid crystal display is suitable for being placed on a wall because the device body is thin. When such a display is used as a television set, it is possible to configure a tuner substrate on the display and a separate unit (hereinafter referred to as a tuner unit), and to place this tuner unit at a position away from the display. Configuration. In the configuration employing the tuner unit, a light receiving unit for receiving a signal from a remote control transmitter is provided in the tuner unit (see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-9-130869
[Problems to be solved by the invention]
However, in the configuration employing the tuner unit, when operating the remote control transmitter, this must be performed toward the tuner unit at a position away from the display, and the remote control operation has been performed on the display until now. The user will feel uncomfortable.
[0005]
The present invention has been made in view of the above circumstances, and has as its object to provide a remote control system that does not make a user feel uncomfortable.
[0006]
[Means for Solving the Problems]
A remote control system according to the present invention is a remote control system in which a display and an image supply unit are applied to a set configured separately, in order to solve the above-described problem. A receiving unit and a transfer unit for the received remote control signal are provided, and a receiving unit for receiving a remote control signal transmitted from the transfer unit is provided on the video supply unit side.
[0007]
With the above configuration, even if the remote control transmitter is operated toward the display side, the remote control signal is transferred to the video supply unit side by the transfer unit, so that the remote control operation is performed toward the display as before. Can be performed, and the sense of incongruity disappears.
[0008]
The transmission of the remote control signal from the display to the video supply unit may be performed wirelessly. According to this, wiring for transferring the remote control signal can be eliminated, and the appearance of the wall-mounted display can be improved. In particular, if the video supply is also performed wirelessly, there is no wiring at all, and the wireless control signal transfer has a great advantage.
[0009]
Further, the remote control system according to the present invention is a remote control system applied to a set in which a screen and a video projection unit are configured separately, and a remote control signal receiving unit and a received remote control signal are provided on the screen side. A signal transfer unit is provided, and a receiving unit that receives a remote control signal transmitted from the transfer unit is provided on the image projection unit side.
[0010]
With such a configuration, the user can perform a remote control operation toward the screen, and the operation is common to the operation on the display.
[0011]
The transmission of the remote control signal from the screen side to the video projection unit side is preferably performed wirelessly. According to this, it is not necessary to extend the wiring for transferring the remote control signal between the screen and the image projection unit which are relatively distant from each other, and it is possible to prevent a trouble such as a stepping on the wiring. become.
[0012]
The receiving unit of the video projection unit may be shared with a signal receiving unit from a remote control transmitter, and the transfer unit may be configured to transmit a remote control signal of the same format as a remote control signal from the remote control transmitter. . According to this, it is only necessary to provide one receiving unit on the image projection unit side, and cost can be reduced.
[0013]
Further, the remote control system of the present invention is a remote control system applied to a device which operates by receiving a remote control signal from a remote control transmitter by a receiving unit, wherein the receiving unit is provided with an extension cord from a main body of the device. Characterized in that it is configured to be pulled out via a.
[0014]
With the above configuration, it is possible to pull out the receiving unit from the main body of the device and place it near a display or a screen. Disappears.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to FIGS.
[0016]
FIG. 1 is an explanatory diagram showing a display system in which the remote control system of this embodiment is incorporated. As shown in FIG. 1, the plasma display 1 is connected to a tuner unit (may have a recording / reproducing function) 3 by an AV code 2. Thereby, the tuner unit 3 can be provided at a position away from the plasma display 1. The plasma display 1 is provided with a light receiving unit 1a that receives a remote control signal (here, an infrared signal) from the remote control transmitter 4.
[0017]
The light receiving section 1a includes a band pass filter 1b as shown in FIG. After receiving the modulated signal of the carrier in the remote control signal, the bandpass filter 1b removes a noise component and extracts only a signal component. The light receiving section 1a is preferably provided with an optical filter, a metal mesh, or the like in order to remove disturbance light noise (incandescent light, inverter fluorescent light, etc.) and electromagnetic wave noise (radiation noise). The carrier removing / transferring unit 1c receives the signal that has passed through the band-pass filter 1b, removes the carrier from the input signal, extracts a remote control signal component, amplifies the signal, and supplies it to the signal line 5. The signal line 5 is connected to a remote control input port P of the microcomputer 3a of the tuner unit 3. The microcomputer 3a decodes a signal (remote control signal component) input to the remote control input port P, determines a command, and performs processing according to the command.
[0018]
In the remote control system of FIG. 1, even if the remote control transmitter 4 is operated toward the plasma display 1, the remote control signal is transferred to the tuner unit 3 by the transfer unit 1c. The remote control operation can be performed toward the plasma display 1 at first, so that the user does not feel uncomfortable.
[0019]
FIG. 3 is an explanatory diagram showing another embodiment of the remote control system. In this remote control system, the output of the above-described transfer unit (not shown in FIG. 3) is provided to the transmission unit 6 via the signal line 51. The transmission unit 6 modulates a radio wave of a predetermined frequency with a signal from the transfer unit 1c and transmits the modulated radio wave from the antenna 6a. The receiving unit 7 is connected to the tuner unit 3. The receiving unit 7 demodulates the radio wave received by the antenna 7a, generates a remote control signal component, and supplies it to the signal line 8. The signal line 8 is connected to a remote control input port of the microcomputer of the tuner unit 3. The microcomputer decodes a signal (remote control signal component) input to the remote control input port, determines a command, and performs processing according to the command.
[0020]
With the remote control system having the above configuration, wiring for transmitting a remote control signal can be eliminated, and the appearance of a wall-mounted display can be improved. In the figure, the plasma display 1 and the tuner unit 3 are connected by the AV code 2. However, it is possible to supply the image wirelessly. In this case, there is no wiring at all and the remote control signal The advantage of performing wireless transfer is great. The power supply to the transmitting unit 6 and the receiving unit 7 may be provided from respective connected devices. The transmitting unit 6 and the receiving unit 7 are configured as, for example, USB (Universal Serial Bus) devices or card devices, and are mounted on USB terminals or card slots provided in each device to perform signal transmission / reception and power supply. It may be configured as follows. Further, the transmission unit 6 and the reception unit 7 may be built in the housings of the respective devices.
[0021]
FIG. 4 is an explanatory diagram showing another embodiment of the remote control system. The light receiving section 3b of the tuner unit 3 is configured to be able to be pulled out from the main body by an extension cord 3c. Therefore, the light receiving section 3b can be placed near the plasma display 1. Thus, the remote control operation can be performed toward the plasma display 1 as before, and the user does not feel uncomfortable.
[0022]
FIG. 5 is an explanatory diagram showing another embodiment of the remote control system. The image projected from the projector 11 is projected on a screen 12. The cylindrical portion of the screen 12 is provided with a light receiving section 12 a for receiving a remote control signal light transmitted from the remote control transmitter 4. Further, a transmission section 12b for modulating and transmitting a radio wave of a predetermined frequency with the output of the light receiving section 12a is provided in the cylindrical section. The projector 11 is provided with a receiving unit 11a that receives a radio wave transmitted from the transmitting unit 12b, demodulates the signal, and extracts a remote control signal.
[0023]
According to the above configuration, the user can perform a remote control operation toward the screen 12, and the operation is common to the operation on the display. Further, since the remote control signal is transmitted from the screen 12 to the projector 11 by radio, the wiring for transferring the remote control signal between the screen 12 and the projector 11, which are relatively distant from each other, is not required. This eliminates the need for forgetting, and can prevent problems such as catching a foot on the wiring.
[0024]
In the above example, the transfer of the remote control signal is performed using radio waves, but the present invention is not limited to this. On the screen 12 side, the received remote control signal light may be transferred as it is. According to this, the receiving unit of the projector 11 for receiving the transfer signal and the remote control signal reception originally arranged in the projector 11 It can be shared with departments. For example, as shown in FIG. 6, a phototransistor Tr and an infrared light emitting diode D (the same as the infrared light emitting diode of the remote control transmitter 4 may be used) are connected in series, and the phototransistor Tr is used as a light receiving unit. The infrared light emitting diode D is a transfer unit. The phototransistor Tr is turned on / off by the infrared light from the remote control transmitter 4, and power is supplied to the infrared light emitting diode D in response to the on / off, and the infrared light emitting diode D blinks. The blinking is the same as the blinking of the infrared light emitting diode of the remote control transmitter 4. The power supply to the infrared light emitting diode D may be performed by a battery, but a shutter or a switch for preventing light from entering the phototransistor Tr is provided in order to avoid consumption of the battery when not in use. It may be opened or operated by a switch.
[0025]
【The invention's effect】
As described above, according to the present invention, there is an effect that the user does not feel uncomfortable when operating the remote controller.
[Brief description of the drawings]
FIG. 1 is an explanatory view schematically showing a remote control system according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a remote control system according to the embodiment of the present invention.
FIG. 3 is an explanatory diagram showing another example of the remote control system.
FIG. 4 is an explanatory diagram showing another example of the remote control system.
FIG. 5 is an explanatory diagram showing another example of the remote control system.
FIG. 6 is a circuit diagram showing a light receiving unit and a transmitting unit of the remote control system.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 plasma display 2 AV code 3 tuner unit 4 remote control transmitter 5 signal line 6 transmission unit 7 reception unit 11 projector 12 screen

Claims (6)

A display and a video supply unit, a remote control system applied to a set configured separately, a reception unit of the remote control signal and a transfer unit of the received remote control signal are provided on the display side, A remote control system, comprising: a receiving unit that receives a remote control signal transmitted from the transfer unit on the video supply unit side. 2. The remote control system according to claim 1, wherein transmission of a remote control signal from the display side to the video supply unit side is performed wirelessly. A remote control system applied to a set in which the screen and the image projection unit are configured separately, and a reception unit for a remote control signal and a transfer unit for the received remote control signal are provided on the screen side, A remote control system, comprising: a receiving unit that receives a remote control signal transmitted from the transfer unit on the video projection unit side. 4. The remote control system according to claim 3, wherein transmission of a remote control signal from said screen side to said video projection unit side is performed wirelessly. 4. The remote control system according to claim 3, wherein a receiving unit of the video projection unit is shared with a signal receiving unit from a remote control transmitter, and the transfer unit has a remote control signal of the same format as a remote control signal from the remote control transmitter. A remote control system characterized in that the remote control system is configured to transmit A remote control system applied to a device that operates by receiving a remote control signal from a remote control transmitter by a receiving unit, wherein the receiving unit is configured to be pulled out from the main body of the device via an extension cord. A remote control system characterized in that:

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