JP4497819B2 - Remote control system, electronic device, remote control method, and control program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a remote control device that remotely controls (remotely controls) equipment using infrared rays or the like, and more particularly, to a control technique in the case of controlling by continuously transmitting a control signal for performing predetermined control.
[0002]
[Prior art]
Conventionally, in a remote control device (hereinafter referred to as a remote controller) that remotely controls equipment using infrared rays, for example, when adjusting the volume of a television receiver or the direction of a video camera, these adjustment keys are pressed. By continuously transmitting control signals, the volume and direction are continuously changed, and the key press is stopped when a desired volume and direction are obtained.
[0003]
When these adjustment keys are pressed, the remote controller transmits an optical signal having a data format as shown in FIG. That is, FIG. 21A is a diagram showing each code system in the format, and 301 is a reader code. Reference numeral 302 denotes a custom code, which is a code for identification such as a manufacturer name or a set model name using a remote controller. 303 is a parity code, and 304 is a data code. Reference numeral 305 denotes an END code called a so-called trailer.
[0004]
FIG. 21B is a diagram illustrating a signal waveform applied to the light emitting diode (LED). For example, the reader code 301 includes a signaled portion having a time of 8T (T is a basic unit of time of the code). 4T time non-signal part.
[0005]
When the key is kept pressed as it is, the remote controller continues to send a so-called repeat code 306 in the format shown in FIG. 21C at a predetermined interval (approximately 100 ms interval). FIG. 21D shows a signal waveform of the repeat code 306 applied to the light emitting diode (LED).
[0006]
Since these formats are disclosed in the November 1996 issue (Non-Patent Document 1) of Transistor Technology (CQ Publishing), detailed description thereof is omitted.
[0007]
Japanese Patent Laid-Open No. 8-163531 (Patent Document 1) discloses a technique for controlling a VTR via a CATV using a CATV remote controller in a system that controls a VTR using an infrared control unit attached to the CATV. Has been.
[0008]
In this publication, a control signal is transmitted through a route of remote control → (light) → CATV → (cable) → infrared control unit → (light) → VTR, and the light from the remote control and the light from the infrared control unit are In order to avoid collisions and failure to receive normally, a control signal is sent only immediately after the remote control key is pressed, and the infrared control unit sends a control signal to the VTR immediately after receiving the control signal. And a control signal is sent out immediately after pressing a key on the remote control, and when the key is released, the control signal is sent again. While the remote control is not sending out the control signal, the infrared control unit And a technique for transmitting a control signal to the computer.
[0009]
[Non-Patent Document 1]
Transistor Technology (CQ Publishing), November 1996 issue
[Patent Document 1]
JP-A-8-163531
[0010]
[Problems to be solved by the invention]
However, since the above repeat code is simply a code meaning “same as before”, the controlled device fails to receive the first data (reader code 301 shown in FIG. 21). Does not know what instruction operation can be repeated, and even if the repeat code 306 is transmitted after that, it can only be received.
[0011]
Further, in the method described in Japanese Patent Laid-Open No. 8-163531, the signal from the remote controller comes only once or twice, so there is a high possibility that CATV misses an infrared signal, which is the same as in the case of a repeat code. A problem occurs.
[0012]
In these cases, the operator of the remote control does not operate the controlled device even if the key is pressed, so it is mistaken that the remote control or the controlled device has failed, or the remote controller key switch is not turned on. It was not easy to use, such as pushing the key with excessive force.
[0013]
A remote controller that repeatedly transmits a control signal of the same format while a key is pressed is also known. Such a remote controller repeatedly transmits the same control signal even if it fails to receive the first signal. Such a problem is solved.
[0014]
However, for keys other than keys that require continuous operation instructions such as volume adjustment, such as a channel switching key for a television or the like, a video signal input switching key, etc., the control signal is repeated even if kept pressed. Although it is not necessary to send out the control signal, the control signal continues to be sent out (same as when a repeat code is sent out), which is a waste of the battery.
[0015]
Note that one slow key press usually keeps the key pressed for several hundreds of milliseconds, and in addition, one transmission signal is completed in several tens of milliseconds. The control signal is transmitted about 4 to 5 times. For this reason, there is a limit even if the user intentionally shortens the key pressing time to eliminate the waste of the battery.
[0016]
Therefore, for a key that does not require a continuous operation instruction, it may be possible to send a control signal only once even if the key is continuously pressed.
[0017]
However, in this method, since a single signal is as short as about several tens of ms as described above, the controlled device receives a control signal in an environment where there are many fluorescent lamps and other disturbance light. It is expected that there is a high possibility of damage. Also in this case, as described above, the operator of the remote control does not operate the controlled device even if the key is pressed, so that the remote controller or the controlled device is mistaken or the remote controller key switch is It is not preferable because it is difficult to use, for example, by pressing the key by applying excessive force because it is not turned on.
[0018]
The present invention has been made in view of such problems, and an object of the present invention is to enable desired control to be performed reliably while achieving power saving.
[0019]
[Means for Solving the Problems]
  According to the present invention, it is determined whether or not the key operation is a key operation suitable for repetitive control, and the repetitive transmission of the control signal is stopped according to the determination.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0021]
[First Embodiment]
FIG. 1 is a system configuration diagram showing a remote control system according to an embodiment of the present invention. In FIG. 1, 1 is a remote controller, and 50 is a controlled device.
[0022]
The remote controller 1 includes a keyboard 3, a liquid crystal display 2, an infrared light emitting unit (infrared light emitting diode) 4, and an infrared light receiving unit (photodiode) 5. The controlled device 50 includes an infrared light receiving unit 52 for receiving an infrared light signal from the remote controller 1, an infrared light emitting unit 53 for transmitting an infrared light signal to the remote control 1, It has a microprocessor (MPU) 51 that controls each part (not shown) of the processing and controlled device 50.
[0023]
FIG. 2 is a system configuration diagram showing a conventional remote control system. In FIG. 2, 30 is a remote controller, and 60 is a controlled device.
[0024]
The remote controller 30 includes a keyboard 33, a liquid crystal display 31, and an infrared light emitting unit (infrared light emitting diode) 32. The controlled device 60 includes an infrared light receiving unit 62 for receiving an infrared light signal from the remote controller 30, a microprocessor (MPU) that controls received signal processing and each part (not shown) of the controlled device 60. 61.
[0025]
That is, the remote control system according to the present invention is characterized in that the signal transmission form is bidirectional instead of the conventional one.
[0026]
FIG. 3 is a block diagram showing a schematic configuration of the remote controller 1 according to the present invention shown in FIG.
[0027]
In FIG. 3, reference numeral 20 denotes a microprocessor (MPU), which has a program memory (ROM) 7 storing a program for performing various processes to be described later, and a program counter 9, and an address designated by the program counter 9 The instruction (instruction) stored in is decoded by the instruction decode controller 8 and each part is controlled in synchronization with a predetermined timing clock (not shown).
[0028]
For example, data stored in a data memory 6 composed of RAM is sent to an arithmetic logic unit (ALU) 11 via a data bus 12 to execute arithmetic processing, and the arithmetic processing result is sent via the data bus 12. The data is stored again in the data memory 6 or the data stored in the data memory 6 is sent to the display decoder / driver 10 to be displayed on the liquid crystal display 2.
[0029]
Further, when a key scan signal is output to the keyboard 3 via the output port 14 to execute key scan, and any key on the keyboard 3 is pressed, the key operation is performed from the input port 13. A signal is taken in and stored in the data memory 6 via the data bus 12, and processing corresponding to each key (strictly speaking, key switch) is executed according to a program in the program memory 7.
[0030]
Further, the device control signal data stored in the data memory 6 is sent to the output port 18, and the driver 17 drives the infrared light-emitting diode 4 based on the signal data to convert it into an infrared light signal. It is sent to the control device 50.
[0031]
In addition, a response signal or the like by infrared light from the controlled device 50 is received by the photodiode 5, taken into the input port 15 via the light receiving amplifier 16, stored in the data memory 6 via the data bus 12, and displayed on the liquid crystal display. It is displayed on the device 2 and various operation controls are performed.
[0032]
Next, control signal transmission processing in the first embodiment will be described with reference to the flowchart of FIG.
[0033]
Step S1 is a display process, in which data to be displayed on the data memory 6 in FIG. 3 is selected and displayed. Next, it is determined whether or not a key input has been made (step S2). If there is no key input, the process returns to step S1, and the processes of steps S1 and S2 are repeated.
[0034]
If there is a key input, the process proceeds to step S3, and an optical signal corresponding to the input key is transmitted. Here, the code system of one frame of the optical signal will be described with reference to FIG.
[0035]
In FIG. 5, reference numeral 501 denotes a reader code, and 502 denotes a custom code. These are the same as those in the above-described conventional example, and thus description thereof is omitted.
[0036]
Reference numeral 503 denotes a code for setting one of a plurality of controlled devices 50 as a control target, and a host number for specifying the controlled target device 50 is set. As the host number, different host numbers are assigned even for the same product of the same manufacturer, and even if the same product of the same manufacturer is installed in the vicinity of each other, one of them is selectively selected. It becomes possible to control to.
[0037]
Reference numeral 504 is a code for enabling a certain controlled device 50 to selectively receive a control signal from one remote controller 1 among a plurality of remote controllers of the same manufacturer, and the remote controller number of the remote controller is set. .
[0038]
Reference numeral 505 denotes a communication type code indicating whether transmission data is completed in one frame (referred to as a single frame) or a plurality of frames (referred to as a multiframe), and a code “00” is set in the single frame. Is done. In the case of a multi-frame, “01” is set in the first frame of the multi-frame, “10” is set in the intermediate frame, and “11” is set in the last frame. Used for property management.
[0039]
Reference numeral 506 denotes a code representing a packet number, which is composed of 2 bits indicating the order of transmission data (command).
[0040]
As the packet number 506, in the case of a single frame, a code “00” is assigned to the first single frame. In the second and subsequent single frames that are repeatedly sent when the key is kept pressed, three codes “01”, “10”, and “11” other than “00” are “01” → “10” → “11”. “→” 01 ”→“ 10 ”is added cyclically so that the first single frame (command) and the second and subsequent single frames (command) can be distinguished. Note that one or two of “01”, “10”, and “11” can be fixedly attached to the second and subsequent single frames.
[0041]
On the other hand, in the case of multi-frame, the packet number is cyclically assigned as “quaternary counter” as “00” → “01” → “10” → “11” → “00” → “01”. To do. In remote control, unlike packet data that flows on a signal line such as a LAN (Local Area Network), the order of transmission data does not vary. This is because the frame can be specified.
[0042]
507 is data length information indicating the length of data (command) 508, 508 is data (command), 509 is a checksum, and 5010 is an END code.
[0043]
In step S3 of FIG. 4, an optical signal having such a configuration is transmitted, and count values of a first timer and a second timer (not shown) provided on the data memory 6 are reset.
[0044]
Thereafter, it is determined whether or not the key is kept pressed (step S4). If the key is kept pressed, it is determined in step S5 whether or not the count value of the first timer has reached a predetermined value. By doing so, it is determined whether or not a predetermined time has passed. As a result, if the predetermined time has not elapsed, the count value of the first timer is incremented by 1 (step S6), and the process returns to step S4.
[0045]
On the other hand, if the predetermined time has elapsed, the process proceeds to step S7, and one value of the 2-bit packet number 506 is added. Next, in step S8, it is determined whether or not the 2-bit result obtained by adding one has become “00”. As a result, when it becomes “00”, the packet number is reset to “01” in step S9, the optical signal is transmitted in step S10, the first timer is reset, and the process returns to step S4.
[0046]
On the other hand, when the packet number is other than “00”, by skipping step S9 and proceeding to step S10, the optical signal is transmitted with the 2-bit packet number of the addition result in step S7, and Reset the first timer.
[0047]
As a result of the above processing, while the key is pressed, the packet number 506 is cyclically changed to “01”, “10”, “11”, “01”,..., And an optical signal is transmitted at a predetermined interval. Continue to be.
[0048]
If it is determined in step S4 that the key has been released, the count value of the second timer is set to a predetermined value in order to determine whether the key has been released for a predetermined time, that is, whether the key has been released reliably. (Step S11). If the predetermined value has not been reached, the count value of the second timer is incremented by one (step S12), and the process returns to step S4. On the other hand, when the count value of the second timer reaches a predetermined value, it is determined that the key has been released and the process returns to step S1.
[0049]
Next, differences between the first embodiment and the conventional example will be described with reference to FIGS.
[0050]
FIG. 6 is a diagram schematically showing a conventional communication procedure between the remote controller 30 and the controlled device 60. When an arbitrary key switch SW3 (see FIG. 2) of the remote controller 30 is pressed, FIG. Infrared light signal 601 is transmitted in the format of
[0051]
However, if this infrared light signal is not received by the controlled device 60 in the direction in which some shield or remote control 30 is held, the next signal 602 that is transmitted by continuously pressing the key switch SW3 is: The repeat signal in the format shown in FIG. 21C is received by the controlled device 60 for the first time after the above-described unreceivable factor has disappeared. It is not known whether the operation should be continued, and repeat signals 604, 605, and 606 are received.
[0052]
FIG. 7 is a diagram schematically illustrating a communication procedure between the remote controller 1 and the controlled device 50 in the first embodiment. When any key switch SW1 (see FIG. 1) of the remote controller 1 is pressed, An infrared light signal 701 is transmitted in the format of FIG.
[0053]
However, if this infrared light signal is not received by the controlled device 50 in the direction in which some shield or remote control is held, the next signal 702 transmitted by continuously pressing the key switch SW1 is the signal This is an optical signal in the same format as 701, and the value of the packet number 506 is changed to “01”.
[0054]
However, if this optical signal is not received by the controlled device 50, and the optical signal 703 that is subsequently transmitted is not received in the same manner, and the optical signal 704 is received for the first time, this optical signal 704 is the optical signal. This is an optical signal in the same format as 701, and the value of the packet number is changed to “11”.
[0055]
Since this optical signal 704 includes the host number 503, the remote control number of the transmission source, the data 508 that is the instruction command information that the key switch SW1 means, on the controlled device 50 side, from what remote control what It is possible to interpret whether a command has been transmitted and to perform a corresponding control process.
[0056]
After that, when the key switch WS1 is kept pressed, the remote controller 1 transmits optical signals 705 and 706 having the same format as the optical signal 701 and packet numbers “01” and “10” changing at predetermined intervals. The controlled device 50 performs a so-called repeat operation.
[0057]
Thus, unlike the conventional remote control system, if the first signal is missed, the controlled device does not know what to do.
[0058]
FIG. 8 schematically shows a communication procedure between the conventional remote controller 30 and the controlled device 60 that outputs an optical signal in a format corresponding to the key switch every time the key switch is continuously pressed. By sending the same signal every time, even if the first optical signal is missed, if the subsequent signal can be fetched several times, the corresponding control processing can be performed. No.
[0059]
However, when the optical signal is interrupted by the shield while the key is pressed, the following new problem occurs.
[0060]
That is, when an arbitrary key switch SW4 (see FIG. 2) of the remote controller 30 is pressed, an optical signal 801 is transmitted in the format of FIG. When the controlled device 60 normally receives the optical signal 801, the controlled device 60 performs control processing corresponding to the key switch SW4 (not shown). Since the key switch SW4 is continuously pressed, the remote controller 30 transmits the same optical signal 802 as the optical signal 801 at a predetermined interval.
[0061]
If the received optical signal is a signal corresponding to the repeat process, the controlled device 60 performs a process corresponding to that (for example, increasing or decreasing the volume) and a signal not corresponding to the repeat process (for example, a channel). If it is a setting, etc.), processing such as receiving is performed.
[0062]
However, since the key switch SW4 is kept pressed, the optical signals 803, 804, 805, and 806 are transmitted. Assume that an optical signal 806 is received.
[0063]
In this case, since the format shown in FIG. 21A does not include information indicating the relationship between the preceding and succeeding optical signals such as the packet number, the controlled device 60 receives the received optical signal 806 once as a key. It is processed as an optical signal related to the key pressed again after the key is released. In other words, if signal reception is interrupted due to a shield or the like while the key is pressed, the key is processed as if the key was released, and the next time the signal is received without the shield or the like, the key is pressed again. As a result, the processing is the same as when the key input operation is performed twice.
[0064]
In this case, if the optical signal 806 corresponds to repeat processing or channel setting, so-called overwriting processing of repeat processing or channel setting may be performed again. However, in the case of an optical signal for setting a numerical value or the like that changes with the passage of time such as time, the processing is performed in the same manner as when the key input operation is performed twice, so that the numerical value or the like is double-set. .
[0065]
FIG. 9 schematically shows a communication procedure between the remote controller 1 and the controlled device 50 in the first embodiment. When any key switch SW2 (see FIG. 1) of the remote controller 1 is pressed, An optical signal 901 is transmitted in the format of FIG. When the controlled device 50 receives the optical signal 901 normally, it returns a reply signal ACK signal 902 indicating that the optical signal 901 has been normally received to the remote controller 1 and performs control processing corresponding to the key switch SW2 (not shown). ).
[0066]
Since the key switch SW2 is kept depressed, the remote controller 1 transmits an optical signal 903 in which the packet number is changed to “01” in the same format as the optical signal 901 at predetermined intervals. If the optical signal 903 transmitted continuously is a signal corresponding to repeat processing, the controlled device 50 performs processing corresponding to the signal (for example, increases or decreases the volume) and sends back an ACK signal 904 to repeat. If the signal does not correspond to processing (for example, channel setting, etc.), processing such as receiving is performed and an ACK signal 904 is returned.
[0067]
However, since the key switch SW2 is continuously pressed, the optical signals 905, 906, 907, and 908 are transmitted, but the optical signals 905, 906, and 907 are not received by the controlled device 60 due to some shielding object or the like. Assume that an optical signal 908 is received.
[0068]
In this case, the received optical signal 908 is an optical signal having the same format as the optical signal 901 and the packet number changed to “10”, and the controlled device 50 continues the optical signal 908 from the optical signal 901. Then, it can be recognized that the signal is a continuation of the signal interrupted midway. The optical signal 908 includes an instruction command corresponding to the key switch SW2 as data 508 (see FIG. 5) in addition to the host number and the remote control number of the transmission source.
[0069]
Therefore, if it is a signal corresponding to repeat processing, processing corresponding to that (for example, increasing or decreasing the volume) is performed and an ACK signal 909 is returned. If the signal does not correspond to the repeat processing (for example, setting of an input numerical value), double setting is avoided by receiving the signal and an ACK signal 909 is returned.
[0070]
In the first embodiment, the ACK signal is returned when the controlled device 50 normally receives the signal from the remote controller 1, but the ACK signal may not be returned.
[0071]
[Second Embodiment]
In the first embodiment, when the key is kept pressed, the packet number is “00” for the first optical signal, and “01”, “10”, “11”, “01” for the second and subsequent optical signals. In the second embodiment, the first optical signal is set to “00” as in the first embodiment, and is fixed to “01” in the second and subsequent optical signals. I am doing so.
[0072]
FIG. 10 schematically shows a communication procedure between the remote controller 1 and the controlled device 50 of the second embodiment. When an arbitrary key switch SW2 (see FIG. 1) of the remote controller 1 is pressed, An optical signal 1101 is transmitted in the format of FIG. When the controlled device 50 normally receives the infrared light signal 1101, it returns a reply signal ACK signal 1102 indicating that it has been normally received to the remote controller 1 and performs control processing corresponding to the key switch SW 2 (see FIG. Not shown).
[0073]
Since the key switch SW2 is continuously pressed, the remote controller 1 transmits the optical signal 1103 in which the packet number is changed to “01” in the same format as the infrared light signal 1101 at a predetermined interval. Thereafter, while the key switch SW2 is kept pressed, the optical signal 1103 in which the packet number is changed to “01” in the same format as the infrared light signal 1101 is continuously transmitted.
[0074]
If the optical signal 1103 transmitted subsequently is a signal corresponding to repeat processing, the controlled device 50 performs processing corresponding to that (for example, increases or decreases the volume) and sends back an ACK signal 1104 to repeat. If the signal does not correspond to processing (for example, channel setting, etc.), processing such as receiving is performed and an ACK signal 1104 is returned.
[0075]
However, since the key switch SW2 was kept pressed, the optical signals 1105, 1106, 1107, and 1108 were transmitted, but the optical signals 1105, 1106, and 1107 were not received by the controlled device 60 due to some sort of shielding. Assume that an optical signal 1108 is received.
[0076]
In this case, the received optical signal 1108 is an optical signal having the same format as that of the optical signal 1101 and whose packet number has changed to “01”. In the controlled device 50, the optical signal 1108 continues from the optical signal 1101. Then, it can be recognized that the signal is a continuation of the signal interrupted midway. Further, the optical signal 1108 includes an instruction command corresponding to the key switch SW2 as data 508 (see FIG. 5) in addition to the host number, the remote control number of the transmission source, and the like.
[0077]
Therefore, if the signal corresponds to the repeat process, the process corresponding to the signal (for example, increasing or decreasing the volume) is performed and the ACK signal 1109 is returned. If the signal does not correspond to the repeat process (for example, setting of an input numerical value), the double setting is avoided by receiving it and the ACK signal 1109 is returned.
[0078]
In the second embodiment, the ACK signal is returned when the controlled device 50 receives a signal from the remote controller 1, but the ACK signal may not be returned.
[0079]
[Third Embodiment]
One frame of the optical signal transmitted from the remote controller 1 is configured as shown in FIG. 5 in the first and second embodiments, but is configured as shown in FIG. 11 in the third embodiment.
[0080]
11, 1201 is a leader code, 1202 is a custom code, 1203 is a host number, 1204 is a remote control number, 1205 is a communication type code indicating whether transmission data is completed in one frame or a plurality of frames, 1206 is a data length code indicating the length of data (command) 1207, 1207 is data (command), 1208 is a checksum, and 1209 is an END code.
[0081]
That is, the frame in the third embodiment has a configuration in which the packet number is removed from the frame in the first and second embodiments.
[0082]
FIG. 12 shows a driving waveform of the reader code 1201 of FIG. 11 applied to the LED 4, and FIG. 12 (A) is a first reader code used for data transmitted first by pressing a key. B) is a second reader code used for data retransmitted while the key is pressed.
[0083]
The first reader code of FIG. 12A used for the first optical signal is the same as that of the first and second embodiments shown in FIG. The non-signal part. The second reader code shown in FIG. 12B used for the second and subsequent optical signals is composed of an 8T-time signaled portion and an 8T no-signal portion.
[0084]
As described above, in the third embodiment, the reader code is used separately for the first time and the subsequent ones, so that the same function as the packet number, that is, the first optical signal and the second and subsequent optical signals are identified and the signal continuity is determined. It has a function to discriminate gender.
[0085]
Note that the time required for transmitting the packet number removed in the third embodiment is 2T time for “0” and 4T for “1” as disclosed in the aforementioned November 1996 issue of transistor technology. Time is required, and the time required for 2 bits ranges from 4T to 8T depending on the packet number.
[0086]
On the other hand, the transmission time of the second reader code (16T) in FIG. 12B transmitted by the second and subsequent optical signals is equal to the first reader code (FIG. 12A) transmitted by the first optical signal. 12T), that is, only 4T time increase from the transmission time of the conventional reader code. Therefore, it is possible to transmit an optical signal of one frame in the same or shorter time when the first optical signal and the second and subsequent optical signals are identified by the reader code than by the packet number.
[0087]
The first optical signal and the second and subsequent optical signal identification / continuity determination functions can be realized by changing the END code.
[0088]
Next, control signal transmission processing according to the third embodiment will be described with reference to the flowchart of FIG.
[0089]
Step S1301 is display processing, in which data to be displayed on the data memory 6 in FIG. 3 is selected and displayed. Next, it is determined whether or not a key input has been made (step S1302). If there is no key input, the process returns to step S1301, and the processes of steps S1301 and S1302 are repeated.
[0090]
If there is a key input, the process proceeds to step S1303, where an optical signal corresponding to the input key is transmitted, and the count values of the first timer and the second timer provided on the data memory 6 are reset. As the reader code of the optical signal transmitted in step S1303, since it is the first transmission, the first reader code shown in FIG. 12A is used.
[0091]
Next, it is determined whether or not the key is kept pressed (step S1304). If the key is kept pressed, it is checked in step S1305 whether or not the count value of the first timer has reached a predetermined value. By determining, it is determined whether or not a predetermined time has elapsed. As a result, if the predetermined time has not elapsed, the count value of the first timer is incremented by 1 (step S1306), and the process returns to step S1304.
[0092]
On the other hand, if the predetermined time has elapsed, the optical signal corresponding to the input key is transmitted, the count value of the first timer is reset (step S1307), and the process returns to step S1304. As the reader code of the optical signal transmitted in step S1307, since it is the second and subsequent transmissions, the second reader code shown in FIG. 12B is used.
[0093]
As described above, by returning from step S1307 to step S1304, the same optical signal as that transmitted in step S1307 is transmitted at a predetermined interval timed by the first timer while the key is pressed. Continue to be sent.
[0094]
If it is determined in step S1304 that the key has been released, the count value of the second timer is set to a predetermined value in order to determine whether the key has been released for a predetermined time, that is, whether the key has been released reliably. (Step S1308), if not, the count value of the second timer is incremented by 1 (step S1309), and the process returns to step S1304. On the other hand, if the count value of the second timer has reached the predetermined value, it is determined that the key has been released and the process returns to step S1301.
[0095]
[Fourth Embodiment]
In the fourth embodiment, even if a key is continuously pressed, depending on the type of the key, repeated transmission of a control signal (optical signal) corresponding to the key is stopped.
[0096]
That is, depending on the type of key pressed, if the control signal corresponding to the key is correctly transmitted once to the controlled device 50, there is a case where it is not necessary to repeatedly transmit the same control signal while the key is pressed.
[0097]
For example, a control signal for designating a channel number by specifying a television channel number, a control signal for instructing input switching between a television and a video, a control signal for instructing ON / OFF switching of a function switch, etc. For a key for transmitting such a control signal instead of a control signal suitable for the repetitive operation on the side, it is not necessary to repeatedly transmit the control signal even if the key is kept pressed.
[0098]
Therefore, in the fourth embodiment, when an “ACK” signal or the like indicating that the control signal is correctly received is returned, the repeated transmission of the control signal is stopped.
[0099]
By this stop processing, it is possible to save power of the remote controller 1. In addition, since there is no longer infrared light emission due to the absence of extra infrared light emission, even if there is another controlled device controlled by infrared light, A communication collision can be avoided, and malfunctions of these controlled devices can be prevented.
[0100]
FIG. 14 is a diagram showing a communication procedure between the remote controller 1 and the controlled device 50 in the fourth embodiment. When an arbitrary key switch SW2 (see FIG. 1) of the remote controller 1 is pressed, the format of FIG. Infrared light signal 1501 is transmitted. When the controlled device 50 receives the optical signal 1501 normally, it returns an “ACK” signal indicating that the optical signal 1501 has been normally received and a repeat stop signal 1502 to the remote controller 1 and performs control processing corresponding to the key switch SW2. .
[0101]
Since the remote controller 1 has received the “ACK” signal, it recognizes that the controlled device 50 has correctly received the optical signal 1501 and has received the repeat stop signal, so even if the key switch SW2 continues to be pressed, The transmission of the control signal corresponding to the key switch SW2 is stopped.
[0102]
Note that the controlled device 50 in the fourth embodiment has a function of determining whether or not the received control signal is a control signal suitable for repetitive control, and is a control signal not suitable for repetitive control. When it is determined that, a repeat stop signal is returned. These functions are realized by the MPU 51 executing a corresponding program.
[0103]
Next, control signal transmission processing according to the fourth embodiment will be described with reference to the flowchart of FIG.
[0104]
Step S1501 is display processing, in which data to be displayed on the data memory 6 in FIG. 3 is selected and displayed. Next, it is determined whether or not a key input is made (step S1502). If there is no key input, the process returns to step S1501, and the processes of steps S1501 and S1502 are repeated.
[0105]
If there is a key input, the process proceeds to step S1503, where an optical signal corresponding to the input key is transmitted, and the count values of the first timer and the second timer provided on the data memory 6 are reset. As the reader code of the optical signal transmitted in this step S1503, since it is the first transmission, the first reader code shown in FIG. 12A is used.
[0106]
Next, it is determined whether or not an “ACK” signal has been returned from the controlled device 50 (step S1504). As a result, if the “ACK” signal is not returned, it is determined whether or not the key is kept pressed (step S1505). If the key is not kept pressed, the following step is performed. The process proceeds to S1510.
[0107]
On the other hand, if the key is kept pressed, it is determined in step S1506 whether or not a predetermined time has elapsed by determining whether or not the count value of the first timer has reached a predetermined value. As a result, if the predetermined time has not elapsed, the count value of the first timer is incremented by 1 (step S1507), and the process returns to step S1504.
[0108]
On the other hand, if the predetermined time has elapsed, the optical signal corresponding to the input key is transmitted, the count value of the first timer is reset (step S1508), and the process returns to step S1504. As the reader code of the optical signal transmitted in step S1508, since it is the second and subsequent transmissions, the second reader code shown in FIG. 12B is used.
[0109]
If it is determined in step S1504 that an “ACK” signal has been returned, it is further determined whether a repeat stop signal has also been returned simultaneously with the “ACK” signal (step S1509). As a result, when only the “ACK” signal is returned and the repeat stop signal is not returned, the process proceeds to step S1505 described above to determine the continuity of the key press.
[0110]
Therefore, as described above, by returning from step S1508 to step S1504, if the key continues to be pressed, the predetermined time counted by the first timer until the “ACK” signal is returned. At the interval, the same optical signal as that transmitted in step S1508 continues to be transmitted, so even if the optical signal is temporarily blocked by the shielding object, if the shielding object disappears, it is reliably received by the controlled device 50. The Rukoto.
[0111]
In addition, as described above, the controlled device 50 does not return a repeat stop signal to a control signal suitable for repetitive control, so that a control signal related to an operation suitable for repetitive control such as volume adjustment is compatible. If the key to be pressed is continuously pressed, repeat transmission is performed.
[0112]
If it is determined in step S1509 that the repeat stop signal has been returned simultaneously with the “ACK” signal, it is determined whether or not the key has been released (step S1510), and it is not determined that the key has been released. Continues the discrimination process.
[0113]
On the other hand, if it is determined that the key has been released, the count value of the second timer is set to a predetermined value in order to determine whether or not the key has been released for a predetermined time, that is, whether or not the key has been released reliably. It is determined whether or not the value has reached the value (step S1511). If the value has not reached the predetermined value, the count value of the second timer is incremented by one (step S1512), and the process returns to step S1510. On the other hand, if the count value of the second timer has reached the predetermined value, it is determined that the key has been released and the process returns to step S1501.
[0114]
Through the above processing, when a repeat stop signal is received together with an “ACK” signal, the control signal corresponding to the key is repeatedly transmitted even if the key corresponding to the control signal that is not suitable for repeated control is subsequently pressed. Will be stopped.
[0115]
Next, the operation of the controlled device 50 in the fourth embodiment will be described based on the flowchart of FIG.
[0116]
The controlled device 50 waits for infrared light to be received by the infrared light receiving unit 52 (see FIG. 1) (step S1601), and when the infrared light is received, the infrared light is received. It is determined whether the control signal is a control signal for the control device 50 and the control signal is normally received (step S1602). As a result, when the control signal for the controlled device 50 is not normally received, the process returns to step S1601.
[0117]
On the other hand, when the control signal for the controlled device 50 is normally received, it is determined whether or not the control signal is a control signal suitable for repeated control (step S1603). As a result, if the control signal is suitable for repetitive control, an “ACK” signal is returned to the remote controller 1 (step S1604), and processing (operation) corresponding to the control signal is performed (step S1606). By returning, it waits for the next light reception.
[0118]
On the other hand, if the control signal is not suitable for repetitive control, a repeat stop signal is returned to the remote control 1 together with the “ACK” signal (step S1605), and processing (operation) corresponding to the control signal is performed (step S1606). By returning to step S1601, the next light reception is awaited.
[0119]
In the above description, the format of the infrared light signal from the remote controller 1 has been described as FIG. 11, but the format of FIG. 5 may be used. In this case, in step S1503 in FIG. 15, a signal with a packet number “00” is transmitted to indicate that it is the first signal, and a signal other than the packet number “00” is transmitted in step S1508.
[0120]
[Fifth Embodiment]
In the first to fourth embodiments, it is assumed that only a single frame control signal is transmitted, but in the fifth embodiment, not only a single frame but also a multiframe control signal is transmitted. Assumed.
[0121]
FIG. 17 shows a communication procedure when a multi-frame control signal is transmitted. For example, if the key switch SW3 (see FIG. 1) corresponding to the control signal of the multi-frame is pressed, the remote controller 1 indicates that the communication type 505 is the first frame of the multi-frame in the format of FIG. ], An infrared light signal 1701 having a packet number 506 of “00” is transmitted. When the controlled device 50 receives this optical signal 1701 normally, it returns an “ACK” signal 1702 indicating that it has been received normally to the remote controller 1 and stores the received optical signal 1701 in the memory for the next frame. Wait for reception.
[0122]
When the remote controller 1 receives the “ACK” signal 1702, the next frame has the same format as before, “10” indicating that the communication type 505 is an intermediate frame, and the value of the packet number 506 is set to “01”. The changed optical signal 1703 is transmitted.
[0123]
However, if the optical signal 1703 is not received by the controlled device 50 due to a shield or the like and the “ACK” signal is not returned from the controlled device 50, the remote controller 1 uses the same optical signal as the optical signal 1703. The signal 1704 is retransmitted.
[0124]
Here, if there is no obstruction and the controlled device 50 has received the optical signal 1704 normally, the controlled device 50 returns an “ACK” signal 1705 and sends the optical signal 1704 to the second frame. Store in memory as data.
[0125]
When receiving the “ACK” signal, the remote controller 1 receives the optical signal 1706 in which the communication type 505 is “10” indicating that the communication type 505 is an intermediate frame and the value of the packet number 506 is changed to “10” as the third data. Then, when the controlled device 50 normally receives the optical signal 1706, it returns an “ACK” signal 1707 to the remote controller 1 and stores the optical signal 1706 in the memory as data of the third frame.
[0126]
When the remote controller 1 receives the “ACK” signal, the optical signal 1708 in which the communication type 505 is “11” indicating that the communication type 505 is the last frame and the value of the packet number 506 is changed to “11” as the fourth final data. Send. When the controlled device 50 receives the optical signal 1708 normally, it returns an “ACK” signal 1709 to the remote controller 1 and stores the optical signal 1708 in the memory as data of the fourth frame. Then, the data related to the multi-frames that have been sequentially stored in the memory are combined into one, and the corresponding control operation process is performed.
[0127]
Next, control signal transmission processing according to the fifth embodiment will be described with reference to the flowcharts of FIGS.
[0128]
Step S1801 is display processing, in which data to be displayed on the data memory 6 in FIG. 3 is selected and displayed. Next, it is determined whether or not a key is input (step S1802). If there is no key input, the process returns to step S1801, and the processes of steps S1801 and S1802 are repeated.
[0129]
If there is a key input, it is determined whether or not the control signal to be transmitted by the key input is a single frame control signal (step S1803). As a result, if the control signal is a single frame, the process proceeds to step S1804, where a single frame control signal (optical signal) corresponding to the input key is transmitted, and a first timer provided on the data memory 6, The count value of the second timer is reset. As the packet number of the optical signal transmitted in step S1804, “00” is assigned because it is the first transmission.
[0130]
Next, it is determined whether or not an “ACK” signal is returned from the controlled device 50 (step S1805). As a result, if the “ACK” signal is not returned, it is determined whether or not the key is kept pressed (step S1806). If the key is not kept pressed, the following step is performed. The process proceeds to S1811.
[0131]
On the other hand, if the key is kept pressed, it is determined in step S1807 whether or not a predetermined time has elapsed by determining whether or not the count value of the first timer has reached a predetermined value. As a result, if the predetermined time has not elapsed, the count value of the first timer is incremented by 1 (step S1808), and the process returns to step S1805.
[0132]
On the other hand, if the predetermined time has elapsed, the optical signal corresponding to the input key is transmitted, the count value of the first timer is reset (step S1809), and the process returns to step S1805. As the packet number of the optical signal to be transmitted in step S1809, “01” is fixedly given because it is the second and subsequent transmissions.
[0133]
If it is determined in step S1805 that the “ACK” signal has been returned, it is further determined whether or not the repeat stop signal has also been returned simultaneously with the “ACK” signal (step S1810). As a result, when only the “ACK” signal is returned and the repeat stop signal is not returned, the process proceeds to step S1806 described above to determine the continuity of the key press.
[0134]
Therefore, as described above, by returning from step S1809 to step S1805, if the key continues to be pressed, the predetermined time counted by the first timer until the “ACK” signal is returned. At the interval, the same optical signal as that transmitted in step S1809 is continuously transmitted, so even if the optical signal is temporarily blocked by the shielding object, if the shielding object disappears, the optical signal is reliably transmitted by the controlled device. Will be received.
[0135]
Further, as described above, the controlled device 50 does not return a repeat stop signal for a control signal suitable for repetitive control, and thus the above processing relates to an operation suitable for repetitive control such as volume adjustment. The control signal means that the control signal is repeatedly transmitted by continuously pressing the corresponding key.
[0136]
If it is determined in step S1810 that the repeat stop signal has been returned simultaneously with the “ACK” signal, it is determined whether or not the key has been released (step S1811), and it is not determined that the key has been released. Continues the discrimination process.
[0137]
On the other hand, if it is determined that the key has been released, the count value of the second timer is set to a predetermined value in order to determine whether or not the key has been released for a predetermined time, that is, whether or not the key has been released reliably. It is determined whether or not the value has reached the value (step S1812). If the value has not reached the predetermined value, the count value of the second timer is incremented by one (step S1813), and the process returns to step S1811. On the other hand, if the count value of the second timer has reached the predetermined value, it is determined that the key has been released and the process returns to step S1801.
[0138]
With the above processing, when a repeat stop signal is received together with an “ACK” signal for a single frame control signal, even if the key corresponding to the control signal that is not suitable for repeated control is continuously pressed, The repetitive transmission of the control signal corresponding to is stopped.
[0139]
If it is determined in step S1803 that the key input is to transmit a multi-frame optical signal, the communication type (505 in FIG. 5) and the packet number (506 in FIG. 5) correspond to the multi-frame as described above. Then, the optical signal of one frame is transmitted using the code (step S1814).
[0140]
Next, it is determined whether or not an “ACK” signal has been returned from the controlled device 50 (step S1815). As a result, if the “ACK” signal is not returned, the process returns to step S1814 to retransmit the optical signal of the same frame. That is, in the case of multiframe, when the “ACK” signal is not returned, the same optical signal is retransmitted without determining whether or not the key is kept pressed.
[0141]
On the other hand, if “ACK” is returned, it is determined whether or not all frames have been transmitted (step S1816). As a result, if transmission of all the frames has not been completed, the communication type (505) and the packet number (506) are updated (step S1817), and the process returns to step S1814 to return the optical signal of the frame related to the next data. Send. If all frames have been transmitted, the count value of the second timer is reset (step S1818), and the process proceeds to step S1811 described above.
[0142]
As described above, in the present embodiment, it is assumed that the repeat transmission stop control during the key press is not performed for the control signal related to the multiframe. The reason for this is that in the case of multi-frame, it takes a certain amount of time to complete transmission, and the transmission required time is slightly shorter than the ON time of the key switch in one key operation, so repeat transmission is stopped. This is because power saving is considered to be less effective.
[0143]
Therefore, even in the case of multi-frame transmission, when transmission is completed in a short time, it is desirable to perform repeat transmission stop control while pressing a key, as in the case of single frame.
[0144]
[Sixth Embodiment]
In the fourth and fifth embodiments, the controlled device 50 determines whether or not to stop the repeat transmission and instructs the stop of the repeat transmission. However, in the sixth embodiment, the remote controller 1 performs the repeat transmission by itself. The repeat transmission is stopped by determining whether or not to stop.
[0145]
Next, control signal transmission processing according to the sixth embodiment will be described with reference to the flowchart of FIG.
[0146]
Step S2001 is display processing, in which data to be displayed on the data memory 6 in FIG. 3 is selected and displayed. Next, it is determined whether or not a key is input (step S2002). If there is no key input, the process returns to step S2001, and the processes of steps S2001 and S2002 are repeated.
[0147]
If there is a key input, the process proceeds to step S2003, where an optical signal corresponding to the input key is transmitted, and the count values of the first timer and the second timer provided on the data memory 6 are reset. As the reader code of the optical signal transmitted in step S2003, since it is the first transmission, the first reader code shown in FIG. 12A is used.
[0148]
Next, it is determined whether or not an “ACK” signal is returned from the controlled device 50 (step S2004). As a result, if the “ACK” signal is not returned, it is determined whether or not the key is kept pressed (step S2005). If the key is not kept pressed, the following step is performed. The process proceeds to S2010.
[0149]
On the other hand, if the key is kept pressed, it is determined in step S2006 whether or not a predetermined time has elapsed by determining whether or not the count value of the first timer has reached a predetermined value. As a result, if the predetermined time has not elapsed, the count value of the first timer is incremented by 1 (step S2007), and the process returns to step S2004.
[0150]
On the other hand, if the predetermined time has elapsed, the optical signal corresponding to the input key is transmitted, the count value of the first timer is reset (step S2008), and the process returns to step S2004. As the reader code of the optical signal transmitted in step S2008, since it is the second and subsequent transmissions, the second reader code shown in FIG. 12B is used.
[0151]
If it is determined in step S2004 that an “ACK” signal has been returned, it is determined whether or not the key is a key corresponding to a control signal suitable for repeated control (step S2009). Keys corresponding to control signals suitable for repetitive control include keys for instructing volume adjustment, changing the viewing direction of the monitor camera / magnification (zoom), etc. Control signals not suitable for repetitive control As the keys corresponding to, there are numerical keys and keys for instructing ON / OFF switching of a specific function.
[0152]
If it is determined in step S2009 that the key corresponds to a control signal suitable for repetitive control, the process proceeds to step S2005 described above. Therefore, if the key continues to be pressed, the same optical signal as that transmitted in step S2003 is received at a predetermined interval timed by the first timer until an “ACK” signal is returned. Since the transmission continues, even if the light signal is temporarily blocked by the shielding object, if the shielding object disappears, the light signal is surely received by the controlled device.
[0153]
If it is determined in step S2009 that the key corresponds to a control signal that is not suitable for repeated control, it is determined whether or not the key has been released (step S2010), and if it is not determined that the key has been released. The determination process is continued.
[0154]
On the other hand, if it is determined that the key has been released, the count value of the second timer is set to a predetermined value in order to determine whether or not the key has been released for a predetermined time, that is, whether or not the key has been released reliably. It is determined whether or not the value has reached the value (step S2011). If the value has not reached the predetermined value, the count value of the second timer is incremented by one (step S2012), and the process returns to step S2010. On the other hand, if the count value of the second timer has reached the predetermined value, it is determined that the key has been released and the process returns to step S2001.
[0155]
With the above processing, even if a key corresponding to a control signal that is not suitable for repetitive control is kept pressed, the repetitive transmission of the control signal corresponding to the key is stopped, and power saving of the remote controller 1 is achieved. Is possible. In addition, since there is no longer infrared light emission due to the absence of extra infrared light emission, even if there is another controlled device controlled by infrared light, A communication collision can be avoided, and malfunctions of these controlled devices can be prevented.
[0156]
It is to be noted that an object of the present invention is to supply a storage medium (or recording medium) in which a program code of software for realizing the functions of the above-described embodiments is recorded to a system or apparatus, and the computer (or CPU or MPU) of the system or apparatus. Needless to say, this is also achieved by reading and executing the program code stored in the storage medium.
[0157]
In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the storage medium storing the program code constitutes the present invention. Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an operating system (OS) running on the computer based on the instruction of the program code. It goes without saying that a case where the function of the above-described embodiment is realized by performing part or all of the actual processing and the processing is included.
[0158]
Further, after the program code read from the storage medium is written to a memory provided in a function expansion card inserted into the computer or a function expansion unit connected to the computer, the function expansion is performed based on the instruction of the program code. It goes without saying that the CPU or the like provided in the card or the function expansion unit performs part or all of the actual processing, and the functions of the above-described embodiments are realized by the processing. When the present invention is applied to the storage medium, the storage medium stores program codes corresponding to the flowcharts described above.
[0175]
【The invention's effect】
As described above, according to the present invention, desired control can be reliably performed while saving power.
[Brief description of the drawings]
FIG. 1 is a system configuration diagram of a remote control system according to an embodiment of the present invention.
FIG. 2 is a system configuration diagram of a conventional remote control system.
FIG. 3 is a block diagram showing a schematic configuration of a remote controller according to the embodiment of the present invention.
FIG. 4 is a flowchart showing control signal transmission processing in the first embodiment of the present invention;
FIG. 5 is a diagram illustrating a first configuration example of a control signal according to the embodiment of the present invention.
FIG. 6 is a diagram illustrating a communication procedure between a conventional remote controller and a controlled device (when a repeat signal is transmitted while a key is being pressed and is shielded from the beginning).
FIG. 7 is a diagram showing a communication procedure between the remote controller and the controlled device in the first embodiment of the present invention (when light is shielded from the beginning).
FIG. 8 is a diagram illustrating a communication procedure between a conventional remote controller and a controlled device (when the same signal is repeatedly transmitted while a key is pressed, and is shielded from the middle).
FIG. 9 is a diagram illustrating a communication procedure between the remote controller and the controlled device in the first embodiment of the present invention (when an ACK signal is returned and light is shielded from the middle);
FIG. 10 is a diagram showing a communication procedure between a remote controller and a controlled device in the second embodiment of the present invention (when the packet number of the control signal for the second and subsequent times is fixed to 01).
FIG. 11 is a diagram illustrating a second configuration example of a control signal in the embodiment of the present invention.
12 is a diagram showing a waveform example of a leader code in the control signal of FIG.
FIG. 13 is a flowchart showing control signal transmission processing according to the third embodiment of the present invention;
FIG. 14 is a diagram illustrating a communication procedure between a remote controller and a controlled device according to the fourth embodiment of the present invention (an example in which a repeat stop signal is returned).
FIG. 15 is a flowchart showing control signal transmission processing according to the fourth embodiment of the present invention;
FIG. 16 is a flowchart showing processing of a controlled device according to the fourth embodiment of the present invention.
FIG. 17 is a diagram illustrating a communication procedure between a remote controller and a controlled device according to the fifth embodiment of the present invention (in the case of multiframe).
FIG. 18 is a flowchart showing control signal transmission processing according to the fifth embodiment of the present invention;
FIG. 19 is a flowchart continued from FIG. 18;
FIG. 20 is a flowchart showing a control signal transmission process in the sixth embodiment of the present invention (an example in which repeat determination is spontaneously determined by the remote controller).
FIG. 21 is a diagram illustrating a configuration example of a conventional control signal.
[Explanation of symbols]
1: Remote control
3: Keyboard
4, 52: Infrared light emitter
5, 53: Infrared light receiver
6: Data memory (RAM)
7: Program ROM
20, 51: MPU
50: Controlled device body

Claims (6)

A remote control system in which a control device and a controlled device can communicate bidirectionally wirelessly,
The controller is
First transmission means for repeatedly transmitting a control signal corresponding to the key switch while the key switch for remote control is kept depressed;
Stop means for stopping repeated transmission of the control signal by the first transmission means when a stop command signal is received from the controlled device;
The controlled device is:
First determination means for determining whether or not a control signal corresponding to the key switch transmitted by the first transmission means is a control signal suitable for repetitive control;
Second transmission means for transmitting a stop command signal for stopping the repeated transmission of the control signal by the first transmission means when the first determination means determines that the control signal is not suitable for repeated control. A remote control system comprising: The controlled device has second determining means for determining whether or not the control signal transmitted by the first transmitting means has been normally received;
When the second transmission means determines that the signal has been normally received by the second determination means and the first determination means determines that the control signal is not suitable for repeated control, the first transmission means The remote control system according to claim 1, wherein a stop command signal for stopping the repeated transmission of the control signal by the transmission means and a normal reception signal are transmitted. An electronic device remotely controlled by a remote control device capable of wirelessly communicating in both directions,
First determination means for determining whether or not the same control signal repeatedly transmitted from the remote control device is a control signal suitable for repeated control;
An electronic apparatus comprising: a transmission unit configured to transmit a stop command signal for stopping repeated transmission of the control signal when the first determination unit determines that the control signal is not suitable for repeated control. The electronic device has second determination means for determining whether or not the control signal transmitted from the remote control device has been normally received;
The transmission means repeatedly transmits the control signal when the second determination means determines that the signal has been normally received and the first determination means determines that the control signal is not suitable for repeated control. The electronic device according to claim 3 , wherein a stop command signal for stopping the signal and a normal reception signal are transmitted. A remote control method executed by an electronic device remotely controlled by a remote control device capable of two-way wireless communication,
A determination step of determining whether or not the same control signal repeatedly transmitted from the remote control device is a control signal suitable for repeated control;
A transmission step of transmitting a stop command signal for stopping the repeated transmission of the control signal when it is determined in the determination step that the control signal is a control signal not suitable for repeated control;
A remote control method executed by an electronic device characterized by comprising: A control program for an electronic device that is remotely controlled by a remote control device capable of wireless bidirectional communication,
A determination step of determining whether or not the same control signal repeatedly transmitted from the remote control device is a control signal suitable for repeated control;
A transmission step of transmitting a stop command signal for stopping the repeated transmission of the control signal when it is determined in the determination step that the control signal is a control signal not suitable for repeated control;
A control program for electronic equipment, comprising:

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