JP3426618B2 - Remote control device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device, and more particularly to a general-purpose remote control transmitter that is not restricted by the model of the device to be controlled and a remote control-related device provided in the device to be controlled in cooperation with it. Hereinafter, the remote control device according to the present invention will be described as including a remote control transmitter and a related device in a device to be controlled that cooperates with the remote control transmitter.

[0002]

2. Description of the Related Art With respect to home AV (audio-video) equipment, etc., remote control transmitters attached to each of the equipment such as a TV, a VTR, and a video disc, that is, dedicated to each equipment, are provided. Each AV that is prepared and used by the same user
Since the devices are not always from the same manufacturer, it is cumbersome and inconvenient to operate them separately. Therefore, a general-purpose remote control transmitter that can be commonly used for each device has been considered. Conventionally, as a general-purpose remote control transmitter, that is, a device that can control or operate equipment (models) of different manufacturers or different equipment with a single remote control transmitter, the so-called "learning remote control transmission" has been used. Machine ”and“ pre-programmed remote control transmitter ”. In the following, the remote control transmitter is simply referred to as a "remote control transmitter" or a "commander" for a specific controlled device.
Say.

The learning type remote control transmitter or the learning type commander is configured so that the control codes (hereinafter, also referred to as remote control codes or commands) of various devices of a plurality of manufacturers can be memorized in a single remote controller. FIG. 1 shows an example thereof. In the figure, 1 is a learning remote controller main body, 2 is a light receiving element of an infrared ray receiving unit, 3 is an amplifier, 4 is a transmission and learning microcomputer (hereinafter, simply referred to as a microcomputer), 5 is a learning processing function in the microcomputer 4, and 6 Is a memory, 7 is a learning switch,
Reference numeral 8 is an operation key, 9 is a power source, 10 is a driving transistor of an infrared light emitting portion, 11 is a light emitting element, and 19 is an OK lamp indicating that learning has been completed.

FIG. 2 is a block diagram showing an outline of a control-related portion of a TV receiver, which is an example of a controlled device.
2 is a TV receiver main body, 13 is a light receiving element of an infrared light receiving section,
14 is an amplifier, 15 is a receiving and TV control microcomputer,
Reference numerals 16, 17, and 18 denote a power source, a tuner, and a volume control system, respectively. RC is an attached remote controller provided with operation keys 8 ", that is, a dedicated commander, and commands generated by operating the keys 8" are received by the light receiving unit 1 of the TV receiver 12.
3 and 14 are received and processed in the microcomputer 15 to perform desired control.

When the learning remote controller 1 is used, FIG.
As shown in, learning is performed by facing the remote controller RC about 5 cm away. The learning procedure is as follows. First, turn on the learning switch 7 and press the key 8 to be stored in the learning remote controller 1.
While pressing, keep pressing the corresponding function key 8 ″ of the attached remote controller RC. The remote control code generated from the attached remote controller RC is received by the light receiving units 2 and 3, and the learning processing function 5 in the microcomputer 4 causes the cycle, frequency, The codes, etc. are detected, sorted, and sorted and stored in the memory 6. When the storage in the memory 6 is completed, the OK lamp 19 lights up, and one key is terminated. When all are finished, the learning switch 7 is turned off to finish the learning.The learning type remote controller 1 which has been learned in this way operates the key 8 as a commander of the TV receiver 12 in the same manner as the attached remote controller RC. As a result, a remote control code is generated from the light emitting units 10 and 11, and is received by the light receiving units 13 and 14 of the TV receiver 12, and desired control is performed.

The pre-program type remote control transmitter or the registration type commander pre-programs or registers the remote control codes of various devices of major manufacturers (models) in advance, and sets the manufacturer (model) with the manufacturer setting key. , And is configured to call a necessary one, an example of which is shown in FIG. 1'in the figure
Is a registered remote controller body, 4'is a microcomputer, 6'is pre-program data stored or built in the microcomputer 4 ', 8'is an operation key, 11' is a light emitting element of an infrared light emitting part, and 48 is a manufacturer setting switch. is there.

In using the registered remote controller 1 ',
First, the manufacturer setting switch 48 is turned on, and the manufacturer (model) of the control target device to be controlled is set by operating the specified combination of the operation keys 8'or a substitute key while referring to the instruction manual. To do. Based on the setting, the control code of the corresponding model is selected from the preprogram data stored in the microcomputer 4 '. After that, the registered remote controller 1'acts as a commander for the control target device, and can operate the operation keys 8'to perform necessary control as in the auxiliary remote control RC of the control target device shown in FIG. it can.

[0008]

Each of these conventional general-purpose remote controllers has the following inconveniences and problems.
That is, in the learning type remote controller, it is necessary to perform the learning operation while pressing both the key of the auxiliary remote controller of the control target device and the corresponding key of the learning type remote controller one by one, which takes time and effort and at the same time causes noise It also has a problem that it is easily mixed. In addition, registration type remote controls, which are also to avoid this, are complicated to set up the manufacturer and become inoperable when a new remote control format is adopted.To avoid this, always investigate and register a new format. There are problems such as the need to go.

Therefore, the present invention provides a general-purpose remote control device which eliminates the inconveniences and problems in the above-mentioned prior art and is capable of automatically setting the control codes of various controlled devices. The purpose is to provide.

[0010]

Means for Solving the Problems] This onset Ming, a first optical communication means for performing optical communication with the control target device includes a light emitting portion and a light receiving portion, various control of multiple control target devices Storage means for storing signals in advance, and light reception of the first optical communication means
And remote control transmitter having a selection means for selecting a control signal corresponding from said storage means based parts to the machine type information of the control target device that is transmitted through, provided in the control target device, the light emitting portion Second optical communication means for performing optical communication with the first optical communication means of the remote control transmitter, and the remote through the light emitting portion of the second optical communication means. A remote control-related device having information transmission means for transmitting the model information of the controlled device required by the control transmitter, and the light emitting section of the first optical communication means in the remote control transmitter is a remote control. The first light in the above remote control transmitter
The remote control device is characterized in that the light receiving unit of the communication unit also serves as a light receiving unit for learning, and the light receiving unit of the second optical communication unit in the remote control-related device also serves as a light receiving unit for remote control.

The invention of claim 2 transmits model information.
Remote control target device equipped with a first optical communication means for
Control remote control transmitter smell
Te has a light emitter and a light receiver first of the control target device
A second optical communication means for performing optical communication between the optical communication means,
A storage unit that previously stores various control signals of a plurality of control target devices, said second optical communication means said storing means based on the model information of the control target device that is transmitted through the light receiving portion of the From the second optical communication means, the light emitting portion of the second optical communication means also serves as a remote control light emitting portion .
The light receiving unit is a remote control transmitter that Ru serves as a learning light receiving portion.

[0012]

When the remote control transmitter having the above-described structure and the control target device to be controlled by the remote control transmitter are connected via their communication means, related information about the device is transmitted from the control target device according to a predetermined communication procedure. Then, the remote control transmitter automatically sets a function capable of controlling the controlled device based on the related information. This allows the remote control transmitter to operate as a commander for the controlled device.

[0013]

FIG. 4 is a block diagram showing the configuration of an embodiment of a remote control transmitter in a remote control device according to the present invention, in which the present invention is applied to a conventional learning remote controller. In the figure, 20 is a learning type remote control transmitter or a learning type commander main body, 21 is a communication line connector for control code or command automatic setting (hereinafter referred to as "commander making"), that is, a commander making terminal 4, A microcomputer provided for transmission and learning similarly to the conventional learning remote controller, 22 a learning processing function in the microcomputer 4 similar to the conventional learning remote controller, 23 a memory for storing learning results, and 24 an operation The key 25 is a light emitting element of an infrared light emitting portion. The communication line 34 for automatic setting of the control code, that is, for commander making is composed of four lines, that is, a data line, a clock line, a waveform transmission line, and a ground line.
Although a light receiving portion similar to that in the conventional learning remote controller is also shown in the figure, it is not particularly necessary here because the commander making terminal 21 is provided, and an auxiliary for conventional use is provided. It is a typical structure.

FIG. 5 is a block diagram showing a configuration of a control-related portion mainly including a remote-control-related portion of a TV receiver which is an example of a device to be controlled to which the present invention is applied, and 27 is a TV receiver main body and 28. Is a learning remote controller 2
A communication line connector for commander making, which is connected to the commander making terminal 21 of 0, 29 is a microcomputer having a function for automatically setting a control code, that is, a commander making function in addition to the conventional reception and TV control. Reference numeral 30 is a light receiving element of an infrared ray receiving portion for a remote controller, 31 is an operation switch for automatically setting a control code, that is, a commander making switch, 32 is a screen display circuit, and 33-1 is an example of screen display.

The automatic setting of the control code according to the present invention, here, the commander making operation for automatically performing the learning operation will be described. When setting the learning remote control transmitter 20 as the commander for the TV receiver 27, first, as shown in FIG. 6, the cover 26 provided on the side opposite to the light emitting section (25) of the remote control transmitter 20 is removed. Then, the commander making terminal 21 is exposed and inserted into the connector 28 of the TV receiver 27. Next, when the commander making switch 31 is turned on, the microcomputer 29 of the TV receiver 27 and the remote control transmitter 2 are connected via the communication line 34.
Information is exchanged with the microcomputer 4 of 0 according to a predetermined communication procedure, that is, a predetermined protocol, a control code is automatically set in the remote control transmitter 20, and the TV is displayed.
Settings as a commander for the receiver 27 are performed.

FIG. 7 shows an example of the communication procedure in that case. <Step 35> On the TV receiver 27 side, when the commander making switch 31 is turned on, the tube surface display circuit 32 is driven and, for example, as shown in the figure, “commander making / execution in progress” (33). -1) is displayed on the screen and 3 bytes (1 byte = 8) as shown in the figure for the remote control transmitter 20 via the data line.
(Bit) signal is sent, "type confirmation" of learning type or registration type, "category confirmation" of having a key for TV, and the number of keys to be stored "Check the number of keys" is performed.

<Step 36> From the remote control transmitter 20 side, via the data line, a “type” which is also a 3-byte signal, for example, indicating a learning type, and “category indicating having a TV key” , And "number of keys" indicating that there are 20 keys. <Step 37> Next, from the TV receiver 27 side, 3
Data of “learning setting” that sets the transmitter side to the learning mode, which is a byte signal, “TV” that indicates that it is for TV, and “key designation” that indicates that it is a control code related to a power key, for example. Sent.

<Step 38> On the other hand, from the remote control transmitter 20 side, “learning preparation completion”, which is a 2-byte signal indicating completion of learning preparation, and “power supply” indicating that the power key can be accepted A key "OK" reply is sent via the data line. <Step 39> Then, the remote control signal (control code) of the power key is sent from the TV receiver 27 via the waveform transmission line, and the remote control transmitter 20 performs the learning process similar to the learning process of the conventional learning remote controller. The work of
The control code of the power key is stored in the memory 23. <Step 40> When the storage is completed, the remote control transmitter 20 informs the “learned” and “power key” by a 2-byte signal via the data line. Upon receiving this, the TV receiver 27 side confirms whether "learned" (Y
If the learning is insufficient (NO), step 39 is performed again. <Step 41> When step 40 is “YES”, the TV receiver 27 side prepares for comparison work and waits.

<Step 42> For a while, the remote control transmitter 20 transmits the remote control waveform signal (control code) immediately after being stored through the waveform transmission line. On the TV receiver 27 side, the transmitted waveform signal is decoded,
If it is a correct remote control waveform signal, the comparison work is completed. <Step 43> Here, the TV receiver 27 sends the 2-byte “comparison end” and “power key” data to notify that the learning regarding the power key is completed. <Step 44> Next, it is judged whether all keys have been learned, "whether all keys have ended", and "NO".
If so, the process returns to step 37, and learning regarding the next key, for example, the channel up key (CH ⁺ ) is executed according to the same step. After that, the above steps are repeated, for example, the learning of the channel down key (CH ⁻ ) is executed.

<Step 45> When the learning of all 20 keys is completed in this way and the judgment in step 44 is “YES”, 1-byte “all completed” data is sent from the TV receiver 27 and On the screen, for example, the "commander making / end" screen display 33-2 shown in FIG. 6 is displayed. <Step 46> When the remote control transmitter 20 receives the “all completed” data, the learning mode is canceled and the operation is terminated.
The setting as the commander for the V receiver 27 is completed.

When the commander making operation is completed by the communication procedure of steps 35 to 46 as described above, the remote control transmitter 20 is detached from the connector 28 and the cover 2 is removed.
Attach 6. After that, if the operation key 24 is operated and used, the TV receiver 27 can be operated as a commander that can be remotely controlled.

The embodiment in which the present invention is applied to the remote control device using the conventional learning remote control transmitter has been described above, but the present invention is the conventional registration type (pre-program type) shown in FIG. It can also be applied to a remote control device using a remote control transmitter. FIG. 9 is a block diagram showing the configuration of another embodiment of the remote control transmitter in the remote control device according to the present invention, in which the present invention is applied to a conventional registered remote controller. In the figure, 49 is a conventional registration type remote control transmitter or main body of a registration type commander, 50 is a connector for a communication line for automatically setting a control code, that is, a commander making terminal, and 4'is a transmission like a conventional registration type remote controller. , 6'is preprogram data stored or built in the microcomputer 4 ', which is similar to the conventional registered remote controller, 8'is an operation key, and 11' is a light emitting element of an infrared light emitting section. .

In the case of this embodiment, since the TV receiver 27 shown in FIG. 5, which is the device to be controlled, only needs to set the manufacturer, that is, the model, to the remote control transmitter 49, the control code is set. A communication line for automatic setting, that is, commander making requires three lines of a data line, a clock line, and a ground line, and the waveform transmission line is empty. Further, the maker setting switch 48 provided in the conventional registered remote controller shown by the dotted line in the figure is not particularly necessary here because the maker setting is performed by the commander making function of the control target device, and the conventional application is not necessary. Can be provided as an auxiliary structure.

An example of the communication procedure for automatically setting the manufacturer is shown in FIG. 10, and is executed as follows. <Step 51> Similar to step 35 described above, T
On the V receiver 27 side, the commander making switch 31 is turned on, the tube surface display circuit 32 is driven, and "commander making / execution in progress" (33-1) is displayed on the TV screen.
In addition to displaying, the 3-byte signal “type confirmation”, “category confirmation” and “key number confirmation” are sent to the remote control transmitter 49 via the data line.

<Step 52> From the remote control transmitter 49 side, from the “type” indicating the registration type, which is also a 3-byte signal, the “category” indicating the TV key, and the required “number of keys”. Will be answered. <Step 53> Then, from the TV receiver 27 side, 2
Data of "maker setting" for setting the byte transmitter side to the maker setting mode and "maker name" indicating the maker name of the TV receiver 27 are sent. The remote control transmitter 49 executes the manufacturer setting work based on the data, and ends the communication procedure. When the manufacturer setting of the registered remote controller transmitter 49 is performed as described above, the remote controller transmission is performed by reading the TV key data of the corresponding manufacturer from the pre-program data 6'built in the microcomputer 4'according to the setting. The machine 49 can function as a commander for the TV receiver 27.

As described above, the remote control device according to the present invention can automatically set the TV receiver 27, which is a device to be controlled, as a commander. However, at the same time, a plurality of other devices and other models are set. Can be set as a commander for. Figure 1
FIG. 1 is a conceptual diagram showing an example of the remote control device according to the present invention set as described above. In the figure, reference numeral 56 is the main body of the remote control transmitter in the remote control device (remote control device) according to the present invention, for example, T
It is provided with keys for a plurality of different kinds of devices, that is, categories, such as V 56-1, VTR 56-2, and video disc 56-3.

Now, as described above, the cover 57 of the remote control transmitter 56 is removed, and the connector 28 for commander making of the TV receiver 27 of a certain manufacturer.
, And the commander making switch 31 is turned on to automatically set the commander for the TV receiver 27. In this case, operation displays 33-1 and 33-2 during commander making are displayed on the TV screen. The remote control transmitter 56 automatically set in this way operates as a commander for the TV receiver 27 by operating the TV key 56-1.

Next, the remote controller transmitter 56 is connected to the commander making connector 58 of the VTR 54 of a different manufacturer (different model) from the TV receiver 27, which is a different type of device, and the commander making switch 60 is connected. When turned on, the commander for the VTR 54 is automatically set as in the case of the TV receiver described above. At this time,
Operation display during commander making is performed by the commander making display lamp 62. Thus, the remote control transmitter 56 operates as a commander for the VTR 54 by operating the VTR key 56-2. Similarly, the remote control transmitter 56 is further coupled to the commander making connector 59 of the video disc 55 of another manufacturer, and the commander making switch 6 is connected.
When 1 is turned on, the remote control transmitter 56 can be operated as a commander for the video disc 55 by operating the video disc key 56-3. Reference numeral 63 is a commander making display lamp.

The remote control transmitter in the general-purpose remote control device according to the present invention shown in FIG. 11 is shown as having three types of keys, but more categories can be included, and the operation keys are also included. It is not necessary to provide it for each category, and the same key can be used for a plurality of categories by a switching operation. Further, in the above-described embodiment of the present invention, the screen display is used as the commander making display in the case of the TV receiver 27. However, like the VTR 54 and the video disc 55, the display by the lamp or the LCD panel is used. It can also be displayed. As yet another method, a display lamp or an LCD panel may be provided on the remote controller transmitter 20, 49 or 56 for display.

In the above-described embodiment of the present invention, a 4-pin connector is used as a communication line for automatic setting of control codes, that is, commander making. Alternatively, the waveform signals can be multiplexed and transmitted. When a connector is used as a communication line in this way, it is necessary to unify the connectors among manufacturers of controlled devices, and there is a problem in terms of space for installation in the device, design problems, etc. The connector can be eliminated by the multiplexing transmission used.

FIG. 12 is a block diagram showing the configuration of still another embodiment of the remote control device according to the present invention using the optical communication means. Reference numeral 20 'is an optical communication type learning remote control transmitter to which the present invention is applied, and has a learning processing function 2 in the microcomputer.
2 ′, memory 23 ′, etc., which are equivalent to those of the learning-type remote control transmitter 20 shown in FIG. 4, the conventional learning light-receiving unit 66 also functions as a light-receiving unit for optical communication, and emits light for remote control. The unit 67 also serves as a light emitting unit for optical communication, and further, the microcomputer 7
0 has an optical communication processing function 71. In addition, in this optical communication type remote control transmitter 20 ',
As shown in FIG. 3 of the conventional learning remote control transmitter, the light receiving part 66 and the light emitting part 67 can be arranged in the front part of the remote control, and special structural consideration like the commander making terminal 21 is required. Disappear.

Reference numeral 27 'is, for example, a TV receiver as a controlled device having an optical communication type commander making function to which the present invention is applied, and the commander making switch 3
1 ', a tube surface display circuit 32', a display screen 33 ', and the like, which are equivalent to those of the TV receiver with the commander making function shown in FIG. 5, an optical communication light emitting section 64, and a conventional remote control light receiving unit. The section 65 also serves as a light receiving section for optical communication, and the microcomputer 69 has an optical communication type commander making function. It should be noted that in the TV receiver 27 ′ having the optical communication type commander making function, it is sufficient to dispose the optical communication light emitting unit 64 on the front surface thereof in addition to the conventional remote control light receiving unit 65. It does not create any space or design issues.

In this configuration, the contents of the commander making operation and the communication procedure therefor are as shown in FIGS.
Although the processing is the same as the processing of the learning remote control transmitter described using, the optical communication paths 34-1, 34 instead of the communication line 34 are used.
-2 is different in that it is used. These optical communication paths multiplex and transmit clocks, data, and waveform signals. The optical communication path 34-1 transmits information sent from the TV receiver 27 'to the remote control transmitter 20', and the optical communication path Path 34-2 carries the opposite information.

[0034]

As described above, according to the remote control device of the present invention, there is no need for learning operation and maker setting operation, and the main body of the controlled device to be controlled.
And remote control transmitter in the present invention to perform optical communication
Then, by operating the commander making function (automatic setting of control code) on the main body side, learning operation and maker setting can be automatically completed in a short time. It is also possible to make a single general-purpose remote control transmitter remember the control contents of multiple types of multiple manufacturers so that each device body and remote control transmitter can perform optical communication.
, It is possible to achieve it by a simple work of only operating the commander making function. Furthermore, according to the remote control device of the present invention, since it is not necessary to attach a remote control transmitter to each device to be controlled, the user can select a remote control transmitter that suits his / her taste in terms of design and ease of use. You can keep it as a handheld device, and when you purchase a new device, you can use the commander making function of the device to convert the remote control transmitter you have into a commander for that device and use it, and this is also resource saving. It will be suitable.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of a configuration of a conventional learning type remote control transmitter.

FIG. 2 is a block diagram showing an outline of a control unit of a TV receiver which is an example of a device to be controlled.

FIG. 3 is a diagram illustrating a learning operation of a conventional learning type remote control transmitter.

FIG. 4 is a block diagram showing the configuration of an embodiment of a remote control transmitter in the remote control device according to the present invention.

FIG. 5 is a block diagram showing a configuration of a relevant portion of a TV receiver which is an example of a device to be controlled in the remote control device according to the present invention.

FIG. 6 is a diagram illustrating an operation of setting a remote control transmitter as a commander for a TV receiver in the remote control device according to the present invention.

FIG. 7 is a procedure diagram showing an example of a communication procedure for setting a learning remote control transmitter to which the present invention is applied as a commander.

FIG. 8 is a block diagram showing an example of a configuration of a conventional registration type remote control transmitter.

FIG. 9 is a block diagram showing the configuration of another embodiment of the remote control transmitter in the remote control device according to the present invention.

FIG. 10 is a procedure diagram showing an example of a communication procedure for setting the registered remote control transmitter to which the present invention is applied as a commander.

FIG. 11 is a conceptual diagram showing that the remote control device according to the present invention is simultaneously set as a commander for a plurality of different devices and models to be controlled.

FIG. 12 is a block diagram showing the configuration of still another embodiment of the remote control transmitter in the remote control device according to the present invention.

[Explanation of symbols]

1, 20, 20 'learning remote controller 1 ', 49 Registered remote controller 2, 13, 30 Light receiving element 3, 14 amplifier 4, 4 ', 70 Transmission and learning microcomputer 5,22,22 'Learning processing function 6,23,23 'memory 6'pre-program data 7 learning switch 8, 8 ', 24 operation keys 10 Drive transistor 11, 11 ', 25 light emitting element 12, 27, 27 'TV receiver 15, 29, 69 Reception and TV control microcomputer 19 OK lamp 21,50 Commander making terminal 28 connectors 31, 60, 61 Commander making switch 32 Tube display circuit 33-1, 33-2, 33 'screen display 34 communication line 48 Manufacturer setting switch 54 VTR 55 Video Disc 56 remote control transmitter 56-1 TV key 56-2 VTR key 56-3 Video Disc Key 62, 63 Commander making display lamp 64, 67 Light emitting unit for optical communication 65, 66 Light receiving part for optical communication 71 Optical communication processing function

   ─────────────────────────────────────────────────── ─── Continued front page       (56) References Japanese Patent Laid-Open No. 64-51897 (JP, A)                 JP-A-3-181295 (JP, A)                 Japanese Patent Laid-Open No. 2-131698 (JP, A)

Claims (2)

(57) [Claims] 1. A first optical communication unit having a light emitting unit and a light receiving unit for performing optical communication with a controlled device, and a storage unit for storing various control signals of a plurality of controlled devices in advance. When the remote control transmitter having a selection means for selecting a control signal from the corresponding said storage means based on the first optical communication unit machine type information of the control target device that is transmitted through the light receiving portion of the And a second optical communication unit provided in the controlled device, having a light emitting unit and a light receiving unit for performing optical communication with the first optical communication unit of the remote control transmitter, and the second optical communication unit. A remote control-related device having information transmission means for transmitting model information of a controlled device required by the remote control transmitter via the light emitting unit of the optical communication means, and The light emitting section of the first optical communication means also serves as a light emitting section for remote control,
First optical communication in the remote control transmitter
The light receiving unit of the means also serves as a light receiving unit for learning, and the light receiving unit of the second optical communication unit in the remote control-related device also serves as a light receiving unit for remote control. 2. A first optical communication for transmitting model information.
Remote control of controlled equipment equipped with means
In the remote control transmitter, a first optical communication of the control target device includes a light emitter and a light receiver
A second optical communication means for performing optical communication with the signal means, a storage unit that stores various control signals of a plurality of control target devices in advance, via the light receiving portion of the second optical communication means Transmitted
Based on the above model information of the control target device and a selection means for selecting a control signal corresponding from said storage means, the light emitting portion of the second optical communication means also serves as a light emitting portion for remote control, the second The light receiving part of the optical communication means of
Remote control transmitter according to claim Rukoto also serves as a use light receiving portion.