JP2001333470A - Remote control system - Google Patents

Abstract

(57) [Problem] To remotely control an operation of a controlled device by a simple operation as desired. SOLUTION: A user input unit 20 of a remote control device 200
The control code corresponding to the key operation by the user No. 4 is read from the control code table CTT and transmitted to the controlled device 100. The device 100 receives the control code and operates based on the control code. Based on the result, the determination unit 105
Determines whether it is necessary to reassign a control code corresponding to each key of the user input unit 204, and if it determines that reassignment is necessary, selectively reads a new control code table CTi and transmits it to the device 100. The device 100 receives the control code table CTi, and updates the internal control code table CTT using the control code table CTi. Thus, the user's determination and key operation for reassigning the control code table are omitted, and the user can perform remote control as desired to operate the device 100 by simple operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control system, and more particularly, to a remote control system configured to be capable of bidirectional communication between a control device and a controlled device controlled by the control device.

[0002]

2. Description of the Related Art Conventionally, to control a controlled device using a remote control device, a control code previously assigned to an input section (for example, a button that can be externally operated) of each user of the remote control device is transmitted. It was done by doing. However, in such a method, when the control of the controlled device becomes diversified, the number of buttons on the user input unit of the remote control device must be increased for each control, and the button operation must be performed. However, there is a problem that the method is not practical.

In order to solve such a problem, Japanese Patent Laid-Open No.
A technique disclosed in Japanese Patent Application No. 257799 has been proposed. In this publication, in a remote control system including a control device capable of bidirectional communication and a controlled device controlled by the control device, each button previously assigned to a user input unit of a remote control device as a control device is assigned to each button. A technique for arbitrarily changing a corresponding control code is shown.

In this technique, a plurality of control code tables corresponding to various operation modes of a controlled device are stored in advance on the remote control device side. In addition, when the controlled device that has received the control code transmitted from the remote control device has been switched to the predetermined mode as a result of the processing according to the received control code, the controlled device indicates the switched new operation mode. The code is transmitted to the remote control, and the remote control receives the code in this mode,
According to the control code table indicated by the received code, the control code is assigned to each button of the user input unit.

Japanese Patent Application Laid-Open No. 9-224293 discloses a technique for controlling one or more controlled devices by using a remote control system capable of two-way communication as described above. Here, the controlled device stores the corresponding control code table in advance, and the controlled device that has received the control code table read request from the remote control device reads the requested control code table and executes the remote control device operation. Therefore, the remote control device receives the control code table transmitted from the controlled device and assigns the control code to each button of the user input unit according to the received control code table.

[0006]

However, in the remote control system described in JP-A-2-257799, a plurality of control code correspondence tables are registered in advance on the remote control device side to operate the controlled device. Only the control code table is switched in accordance with the mode, so that the remote control device cannot perform any operation other than the contents shown in the registered control code table.

In the remote control system described in Japanese Patent Application Laid-Open No. 9-224293, a control code table is transmitted from a controlled device to a remote control device to update the control code table of the remote control device. For this update, it is necessary to provide a dedicated function (for example, a special button) and have the user operate the function.

An object of the present invention is to provide a remote control system capable of controlling the operation of a controlled device as desired by a simple operation.

[0009]

SUMMARY OF THE INVENTION A remote control system according to the present invention has a receiving unit for receiving a control code, and performs a remote operation so as to perform an operation corresponding to the received control code among a plurality of types of operations. And one or more controlled devices that are controlled by a control device, and a control device that has one or more keys that are externally operated when transmitting a control code.

[0010] The control device further includes a receiving means for receiving a control code table in which a plurality of types of control codes are registered corresponding to each of the one or more keys, and Control code transmitting means for reading a control code corresponding to the key from the control code table received by the receiving means and transmitting the read control code to the controlled device.

The controlled device further includes a control code table storing means for storing a plurality of types of control code tables respectively associated with the plurality of types of operations, Control means for reading out a control code table corresponding to the type of the operation from the control code table storage means and transmitting the control code table corresponding to the type of the operation as necessary based on the contents of the operation.

According to the above remote control system, the receiving means and the control code transmitting means of the control device transmit the control code corresponding to the key from the control device in response to the external operation of the key. The control code is read from the received control code table and transmitted to the controlled device. The control means in the controlled device, based on the type of operation corresponding to the control code transmitted and received from the control device, if necessary,
The control code table corresponding to the type of operation is read from the control code table storage means and transmitted to the control device.

Therefore, based on the type of operation of the controlled device according to the control code corresponding to the key operated externally of the control device, if necessary, the control code corresponding to the type of operation is required. The table is provided to the control device, and the control code table on the control device side is updated in real time so as to be a control code table corresponding to the current operation type of the controlled device.

Therefore, even if all kinds of control code tables required for controlling the controlled device are not registered in the controlling device in advance, all the control device can adopt for the controlled device. With regard to the types of operations, remote control by key operation becomes possible. As a result, the control device is economical because the memory capacity for storing the control code table is reduced.

In addition, the control means of the controlled device automatically updates the control code table of the control device as necessary, in other words, the user can update the control code table of the control device. The special operation by is omitted. Therefore, the operation burden on the user is reduced, and the number of keys provided on the control device is reduced, so that the control device can be downsized.

In the above remote control system, the control means determines the necessity of updating the control code table on the control device side based on the type of operation according to the control code received by the receiving unit. A control code table corresponding to an operation type corresponding to the control code received by the receiving unit is read from the control code table storage means in response to the determination unit determining that the update is required. May be done.

According to the above remote control system, when it is judged by the judging means of the control means that the control code table of the control device needs to be updated, it corresponds to the type of the current operation of the controlled device. The control code table is transmitted to the control device, and the control code table for controlling the controlled device on the control device side is updated using the control code table.

Therefore, when the control means of the controlled device determines that the control code table of the control device needs to be updated, in other words, the control code table of the control device automatically changes. Is performed, a special operation by the user for updating the control code table on the control device side is omitted. Therefore, the user can remotely control the controlled device and operate it as desired by a simple key operation.

In the above remote control system, the determination means determines that the type of operation according to the control code received by the receiving unit is different from the original type of operation, and determines that update is necessary. May be configured.

According to the above-described remote control system, when the operation of the controlled device according to the control code received by the receiving unit transitions to an operation of a type different from the original operation, the current operation is not performed. The control code table corresponding to the type is transmitted to the control device, and the control code table for controlling the controlled device on the control device side is updated using the control code table.

Therefore, when the operation of the controlled device changes to a type of operation different from the original operation, the control code table on the control device side corresponds to the type of the current operation of the controlled device. Therefore, a special operation by the user for updating the control code table on the control device side is omitted. Therefore, the user can remotely control the controlled device and operate it as desired by a simple key operation.

The above-described remote control system can be configured such that when one or more controlled devices include a plurality of controlled devices of different types, a plurality of types of control code tables stored in the control code table storage means are provided. Includes a control code table corresponding to another type of controlled device, and the plurality of types of operations include an operation for switching a control target of the control device to another type of controlled device. It may be configured as follows.

According to the above-described remote control system, the operation of the controlled device according to the control code received by the receiving unit is changed to the operation for switching the control target of the control device to another type of controlled device. In the case of transition, a control code corresponding to another type of controlled device is transmitted to the control device,
Using this, the control code table for controlling the controlled device on the control device side is updated to one for controlling another type of controlled device.

Therefore, when the control target of the control device is changed from one controlled device to another type of controlled device, the control code table on the control device side changes to another type of current control target. It is updated in real time and automatically so as to correspond to the controlled device. Thus, a plurality of types of controlled devices can be linked with each other by a simple key operation of the user, and can be remotely controlled as desired.

[0025]

Embodiments of the present invention will be described below with reference to the drawings.

In the present invention, the control device and the remote control device communicate with each other in a wireless manner. As the communication medium, infrared rays, radio waves, and the like are assumed.

(Embodiment 1) Embodiment 1 will be described. FIG. 1 is a configuration diagram of the remote control system according to the first embodiment. FIGS. 2A and 2B are diagrams for explaining button operations on the remote control device.

In FIG. 1, the remote control system includes a remote control device 200 and a controlled device 100 that is remotely controlled by the remote control device 200. The controlled device 100 includes a reception unit 101, a code analysis unit 102, a control unit 103, a processing unit 104, a determination unit 105, a selection unit 106, a control code table storage unit 107, and a transmission unit 108.

The receiving section 101 is constituted by an interface for communication, and is used to incorporate information transmitted from the remote control device 200 therein.

The code analyzing unit 102 analyzes a control code included in the information taken in by the receiving unit 101 and for controlling the controlled device 100.

The control unit 103 receives the analysis result of the code analysis unit 102, controls the processing unit 104 and the determination unit 105 based on the received analysis result,
It is used to centrally manage the control of the controlled device 100 as a whole.

The processing section 104 is used for performing a unique processing by the controlled device 100 based on the control of the control section 103.

The determination unit 105 is used to determine whether it is necessary to newly assign a control code to the remote control device 200 with respect to a user input unit 204 described later.

The control code table storage unit 107 stores and stores one or more control code tables CTi (i = 1, 2, 3,..., N) in advance. Details of the control code table CTi will be described later.

The selecting unit 106 receives the result of the judgment by the judging unit 105 and, based on the received result of the judgment, selects one or more control code tables CTi stored in the control code table storage unit 107 in advance. Select and read out a control code table CTi to be transmitted to the remote control device 200,
It operates to give to the transmission unit 108.

The transmission unit 108 includes an interface for communicating with the remote control device 200, similarly to the reception unit 101, and various information including the control code table CTi read out from the control code table storage unit 107 and given. To the remote control device 200.

In FIG. 1, remote control device 200 includes a receiving unit 201, a code analyzing unit 202, a control unit 203, a user input unit 204, a control code table storage unit 205, and a transmitting unit 206.

The receiving unit 201 comprises an interface for communicating with the controlled device 100, and
00 control code table CTi transmitted from the transmission unit 108
Is received into the remote control device 200.

The code analysis unit 202 is provided with the control code table CTi received by the reception unit 201 and analyzes the control code table CTi.

The control unit 203 receives the analysis result of the control code table CTi by the code analysis unit 202, controls the storage contents of the control code table storage unit 205 based on the received contents, and controls the remote control unit 200. Central control of overall control.

The user input unit 204 is constituted by including buttons and keys provided so as to be operable externally by the user, and is an operation interface between the user and the remote control device 200. Used for remote control.

The control code table storage unit 205 is used to store the control code table CTT.

The transmitting unit 206 is an interface for communicating with the controlled device 100 like the receiving unit 201, and transmits information including a control code to the receiving unit 101 of the controlled device 100.

FIG. 2A shows a plurality of buttons provided on a user input unit 204 of a conventional remote control device used for operating a television as the controlled device 100 to explain the present invention. Is shown. FIG. 2 (B)
In order to operate the television in the same manner,
2 shows buttons provided on the user input unit 204 of the remote control device 200 according to the first embodiment. In the conventional case of FIG.
Channel Up button 702 operated as a user input section to sequentially advance channel numbers 1, 2, 3,...
A channel Down button 703 for transmitting channel numbers in reverse order, a volume Up button 704 operated for increasing the sound output from the television, and a volume Down button 705 operated for decreasing the volume.
Is provided.

On the other hand, the user input unit 204 of the remote control device 200 according to the first embodiment shown in FIG. 2B includes an Up button 707, a Down button 708, and a volume / channel switching button 709.

Next, a procedure for processing the control code transmitted from the remote control device 200 in the controlled device 100,
A procedure for transmitting the control code table CTi from 0 will be described.

FIG. 3 is a processing flowchart in the controlled device 100 in FIG. 1, and FIG. 4 is a processing flowchart in the remote control device 200 in FIG. FIG. 5 is a diagram illustrating a data structure of the control code table CTi stored in the controlled device 100 in FIG. 1 in advance. FIG. 6 is a diagram showing a data structure of the control code table CTT stored in the remote control device 200 of FIG.

First, referring to FIG.
The data structure of the control code table CTi stored by the server will be described. Each of the control code tables CTi has a similar configuration. The control code table CTi is the control code table ID.
501, device status flag 504 and a plurality of data D
j (j = 1, 2, 3,..., n). The data Dj includes an input unit ID 502 and a control code 503.

The control code table ID 501 is a unique value for uniquely identifying the control code table CTi. The device status flag 504 is a flag indicating the status of the controlled device 100 to which the control code table CTi can be applied.
Each of the control code tables CTi is provided corresponding to each of different operation states that the controlled device 100 can take.

Each of the data Di is stored in the controlled device 10.
When “0” is in the operation state indicated by the corresponding device state flag 504, each button or key of the user input unit 204 of the remote control device 200 is provided. The input unit ID 502 is a unique identification value assigned to the corresponding button or key, and is used to distinguish it from other buttons or keys. Control code 5
03 corresponds to a control code transmitted when a corresponding button or key is operated.

The order of data in the data structure shown in FIG. 5 and the specific data mapping method are not particularly limited. In each state of the controlled device 100, what kind of user input unit is used. It suffices if it can be determined whether a suitable control code is assigned.

Next, referring to FIG.
And a method of transmitting the control code table CTi will be described.

First, in step S101, the receiving unit 101 checks whether there is an external input. Here, the input from the outside refers to the reception of the control code transmitted from the remote control device 200 in the receiving unit 101.

If no control code is detected in step S101, the process of step S101 is repeated. When the control code is detected, the process proceeds to step S
Proceeding to 102, the control code is analyzed by the code analysis unit 102, and based on the analysis result, the control unit 103 controls the processing unit 104 to start processing in the controlled device 100 corresponding to the control code.

Next, in step S103, when the processing of the controlled device 100 corresponding to the received control code is performed by the processing unit 104, and the operating state of the controlled device 100 changes, the control unit 103 The control unit 105 controls the determination unit 105 to determine whether the control code table of the remote control device 200 should be updated in the next step S103.

If it is determined in step S103 that the control code table CTT of the remote control device 200 does not need to be updated, the process returns to step S101. As a result of processing,
When it is determined that the control code table CTT needs to be updated after transitioning to a new operation state (for example, transitioning from a channel switchable operation state to a volume adjustable operation state), the process proceeds to step S104. move on.

In step S104, the control unit 103
The control unit 106 controls the selection unit 106 to read the control code table CTi to which the device status flag 504 corresponding to the new operation state is assigned from the control code table storage unit 107, and outputs it to the outside. Here, outputting to the outside means that the transmission unit 206 transmits the control code table CTi to the remote control device 200. After the output, the process returns to step S101.

Next, a procedure for transmitting a control code and a procedure for storing a control code table transmitted from controlled device 100 in remote control device 200 will be described.

First, referring to FIG.
The data structure of the control code table CTT in which 0 is stored in advance will be described. The control code table CTT includes a plurality of data Dj. Each data Dj is provided corresponding to each button or key of the user input unit 204 of the remote control device 200. The data Dj includes the input unit ID 601 and the control code 6
02. An identification value for uniquely identifying a corresponding button or key is set in the input unit ID 601. The control code 602 is a code associated with a corresponding button or key, and is a control code transmitted to the controlled device 100 when the user operates the button or key.

The control code table CTT shown in FIG.
The order of the data in the data structure and the specific data mapping method are not particularly limited, and the user can use the user input unit 20 of the remote control device 200.
It is sufficient that the code transmitted when each button or key of No. 4 is operated can be uniquely associated with the button or key.

In the operation, first, in step S201, the control unit 203 checks whether there is an external input. The external input indicates a button or key operation from the user input unit 204 or a reception of the control code table CTi in the receiving unit 201.

If it is determined in step S201 that there is no external input, the process of step S201 is repeated. If it is determined that there is an external input, the process proceeds to step S202, where the input is a user input. It is checked whether there is. If the input is a user input, the process proceeds to step S205.

In step S205, the control unit 203 obtains an identification value corresponding to the button or key operated by the user input from the user input unit, specifies the input unit ID 601 corresponding to the identification value, and specifies the input unit ID 601. The control code 602 corresponding to the copy ID 601 is read from the control code table CTT of the control code table storage unit 205, and the control code 602 is output to the outside in step S206. Here, outputting to the outside means that the transmission unit 206 outputs the control code 6
02 to the controlled device 100.

After outputting the control code 602 as described above, the process returns to step S201. On the other hand, step S202
In step S203, if it is determined that the control code table CTi is received, the process proceeds to step S203.

In step S203, under the control of the control unit 203, the code analysis unit 202 determines whether or not the received control code table CTi is correct. If the control code table CTi is correct, the process proceeds to step S204.
After the control code table CTT stored in the control code table storage unit 205 is updated using the content of Ti, the process returns to step S201. If not correct, nothing is performed and the process returns to step S201.

Next, the operation procedure of the remote control device 200 will be specifically described with reference to FIGS. 2 (A) and 2 (B).
Here, the controlled device 100 is a television, and a procedure for changing the channel and volume of the television will be described.

In the case of the conventional user input section shown in FIG. 2A, buttons 702 to 705 uniquely corresponding to the respective operations of the channel Up / Down and the volume Up / Down are provided in advance. By pressing a desired specific button, the user can arbitrarily change the channel of the television or increase / decrease the sound.

On the other hand, in the user input section 204 according to the present embodiment of FIG. 2B, channels Up / Down,
There is no dedicated button corresponding to each operation of the volume Up / Down, and general-purpose Up button 707 and Down button 708 which are also used for the channel switching function and the volume adjustment function, and these buttons are used for each function. Since only the volume / channel switching button 709 operated to switch the remote control device 200 is provided, the number of buttons or keys provided on the user input unit 204 is reduced, and the remote control device 200 itself can be downsized. it can.

In operation, the user operates the controlled device 100
In order to change the channel of the TV, the user operates the volume / channel switch button 709 (see steps S201, S202, S205, and S206 in FIG. 2).
Set to enable TV channel operation. In this case, the television sets the control code of the channel Up to the Up button 7.
07, it is determined that the control code of the channel Down needs to be assigned to the Down button 708 (S10 in FIG. 3).
1, the control code table CTi having the device state flag 504 corresponding to the operation state of the channel switching operation is read and transmitted to the remote control device 200.

As a result, a new control code 503 is assigned to the Up button 707 and the Down button 708 of the user input section 204, and the user can control the switching of the television channel by operating these buttons.

The operation for variably adjusting the audio output of the television can be performed in the same manner.

Here, the state of the controlled device 100 is explicitly switched using the volume / channel switching button 709. However, if the state can be changed by operating another button, this button is particularly used. Is not necessary.

(Embodiment 2) Next, Embodiment 2 will be described.

FIGS. 7A and 7B are diagrams schematically showing the configuration of the remote control system according to the second embodiment.
FIG. 8 is a processing flowchart of the controlled device according to the second embodiment. In the present embodiment, the configurations of the controlled device and the remote control device shown in the first embodiment are adopted, and thus the description of those configurations will be omitted.

The difference between the second embodiment and the first embodiment is as follows. In other words, in the first embodiment, the controlled device 100 changes its operating state by previously accumulating and storing the control code table CTi individually assigned to each operating state of the controlled device 100. In this case, the corresponding control code table CTi is stored in the remote control device 200.
Sending to the side.

However, after the control of a certain controlled device 100, there is a demand for the user to want to control another controlled device 100 continuously.

In order to meet such a request, the control code table storage unit 1 of the controlled device 100 according to the second embodiment
In the control code table 07 of 07, not only the control code table CTi of the own device but also the control code tables of the other controlled devices 100 are stored in advance. And in this embodiment,
When the operation state of the controlled device 100 that is currently being controlled has transitioned to an operation state for controlling another controlled device 100, a device state flag 504 corresponding to the operation state is assigned. Control code table CTi, in other words, a control code table CTi corresponding to another controlled device 100.
Is read from the control code table storage unit 107 and transmitted.

On the remote control device 200 side, the content of the internal control code table CTT is updated using the received control code table CTi, and a new A control code 602 corresponding to each button or key of the user input unit 204 is assigned. Depending on the updated control code table CTT, the remote control device 200
In some cases, all the buttons or keys of the user input unit 204 are assigned to the control code 602 of the other controlled device 100, and in some cases, the control code 602 of the other controlled device is assigned to only a part thereof. .

In the former case, the remote control device 200 completely corresponds to the control of only the other controlled device 100. However, this is because the control target of the remote control device 200 is originally controlled. That is, the controlled device 100 has been switched to another controlled device 100. Therefore, when the same process is performed again, the control target of the remote control device 200 is switched from another controlled device 100 to the original controlled device 100.

In the latter case, by operating the buttons or keys of the portion to which the control code 602 is newly assigned, the other controlled device 100 can be controlled, and by operating the buttons or keys of the other portions. The control of the original controlled device 100 can be continued as before. Further, depending on the specific control, the button or key of the portion to which the control code 602 of the other controlled device 100 has been allocated can be re-assigned to the control code 602 of the original controlled device 100 again. The remote control device 200 can be returned to the original state. These procedures are performed for a plurality of controlled devices 1.
00 means that a natural linkage operation is possible.

In this embodiment, the number of controlled devices 100 operating in cooperation is two, but may be three or more.

Next, a plurality of controlled devices 1 as described above
The specific procedure of the linkage process of 00 will be described with reference to FIGS. 7A and 7B and FIG. Here, a television receiver (hereinafter, referred to as a plurality of controlled devices 100)
TV, abbreviated as TV in the figure, and video tape recorder (abbreviated as video, VTR in the figure)
And the case where these are operated in cooperation will be described.

The remote control system shown in FIGS. 7A and 7B includes a television 801, a video 802, and a remote control device 803 for controlling them remotely. Also,
Here, it is assumed that the original controlled device is the television 801 and the other controlled device 100 is the video 802.

In FIG. 7A, in the remote control device 803, a control code table CTT corresponding to T
FIG. 7B schematically shows that a VTR control code table 901 corresponding to the video 802 is stored in the remote control device 803 as a control code table CTT. .

In FIGS. 7A and 7B, the user input unit 204 of the remote control
Input switch button 804 operated to switch the input between the TV 1 and the video 802, and the TV 801 and the video 80
It is schematically shown that a channel button 805 that is also operated for switching two channels is provided.

7A and 7B, the television 801 stores a control code table CTi for its own device and a control code table AC2 for the video 802 which is another controlled device 100. The video 802 schematically shows a state in which a control code table CTi for the own device and a control code table AC1 for the television 801 as another controlled device 100 are stored.

When the user is watching television 801, control code 602 for controlling switching of the channel of television 801 is assigned to channel button 805. This state is shown in FIG.

Here, when the user operates the input switch button 804, the corresponding control code 602 is transmitted from the remote control device 803 to the television 801 (steps S201, S202, S205, S206 in FIG. 4).

In the television 801, the control code is received via the receiving unit 101, and the control unit 103 receives the control code via the code analysis unit 102 and processes the control unit based on the control code. 104 is switched to the video input (steps S301, S302,
S304, S307). In this state, it is not usually possible to operate the television channel. At this time, the TV 8
01 determines that the input has been switched to the video 802 side, and the video 802 held in the television 801 in advance.
Is transmitted to the remote control device 200 (S308 in FIG. 8).

As a result, the remote control device 803 receives the control code table AC2 and receives the internal control code table C2.
TT, that is, the TV control code table 900 is updated using the contents of the received control code table AC2 (FIG. 4).
Steps S201 to S204). As a result, a control code 602 for operating a channel of the video 802 is newly assigned to the channel button 805, and the channel of the video 802 can be operated using the remote control device 803. This state is shown in FIG.

In this state, when input switch button 804 is operated again, control code table AC for controlling the channel of video 802 to television 801 is operated.
1 is transmitted to the remote control device 803 (see steps S301, S302, S304, S305, S306 in FIG. 8). Thus, the channel of the television 801 can be operated again using the remote control device 803.

Here, the simplest example is shown, but as shown by the dotted line in the video 802, each controlled device 1
It is also possible to hold the control code table of another controlled device 100 for every 00. In this case, which operation assigns the control code of the other controlled device 100 to which button or key of the remote control device depends on the controlled device 100, and thus, a complicated linked operation is also possible. Becomes

According to each of the above embodiments, the user input section 204 of the remote control device can be used efficiently. Further, the operability can be improved without requiring a special instruction. In addition, a plurality of controlled devices 100
A natural coordination operation can be provided.

The embodiments disclosed this time are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a remote control system according to a first embodiment.

FIGS. 2A and 2B are diagrams for explaining button operations in a remote control device.

FIG. 3 is a processing flowchart in the controlled device of FIG. 1;

FIG. 4 is a processing flowchart in the remote control device of FIG. 1;

FIG. 5 is a diagram showing a data structure of a control code table previously stored in the controlled device of FIG. 1;

FIG. 6 is a diagram showing a data structure of a control code table stored in the remote control device of FIG. 1;

FIGS. 7A and 7B are diagrams schematically showing a configuration of a remote control system according to a second embodiment.

FIG. 8 is a processing flowchart of a controlled device according to the second embodiment.

[Explanation of symbols]

100 controlled equipment, 200,803 remote control device,
204 User input unit, CTi, CTT control code table.

Claims (4)

[Claims] 1. A receiving unit for receiving a control code, comprising:
One or more controlled devices remotely controlled to perform an operation corresponding to the received control code among a plurality of types of operations, and one or more externally operated devices when transmitting the control code And a control device having a control key having a plurality of keys, wherein the control device further receives a control code table in which a plurality of types of the control codes are registered corresponding to each of the one or more keys. Receiving a control code corresponding to the key, reading the control code corresponding to the key from the control code table received by the receiving unit, and transmitting the read control code to the controlled device. A control code table storing means in which a plurality of types of the control code tables respectively associated with the plurality of types of operations are stored in advance. Control for reading out the control code table corresponding to the type of operation from the control code table storage means and transmitting the control code table corresponding to the type of operation, if necessary, based on the type of operation according to the control code received by the receiving unit Means for remote control. 2. The determining means for determining, based on a type of the operation according to the control code received by the receiving unit, whether or not the control code table needs to be updated on the control device side. In response to the determination unit determining that the update is required,
The remote control system according to claim 1, wherein the control code table corresponding to the type of the operation according to the control code received by the receiving unit is read from the control code table storage unit. . 3. The method according to claim 2, wherein the determining unit determines that the type of the operation according to the control code received by the receiving unit is different from the original type of the operation. The remote control system according to claim 2, wherein the determination is performed. 4. When the one or more controlled devices include a plurality of controlled devices of different types, the plurality of types of control code tables stored in the control code table storage means include: The control code table corresponding to another type of the controlled device is included, and the plurality of types of operations include an operation for switching a control target of the control device to another type of the controlled device. The remote control system according to any one of claims 1 to 3, further comprising: