JPH09215066A - Communication method using plural media - Google Patents

Abstract

PROBLEM TO BE SOLVED: To conduct valid communication by utilizing an identification code so as to identify a communication opposite party thereby making communication with only an opposite party registered mutually in advance. SOLUTION: Extension codes E0-En are added to an end of a transmission signal and the extension codes are used to send an identification code. Since the identification code is used to make identification with other equipment, data with a large bit number are required. Thus, each extension code is made up of plural bytes, and the first byte EO is used to denote a kind of succeeding data and number of bytes of the data. In this case, in the case of transmission by the 1st communication equipment to the 2nd communication equipment, When the 2nd communication equipment receives a call from the opposite party, the 2nd communication equipment collates the identification code of the opposite party registered in a storage means with the received identification code of the opposite party when a call comes from the opposite party and replies with the call and makes valid communication only when they are coincident.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication method using a plurality of media suitable for use in household electronic equipment or business information equipment.

[0002]

2. Description of the Related Art A remote controller (hereinafter abbreviated as a remote controller) for household electronic equipment has the convenience that it can be variously adjusted and controlled while a remote equipment is present. This type of remote control is used in many AV equipment and air conditioning equipment, and its application range is expanding. There are various methods of remote control, but the mainstream method at present is the communication method using infrared rays.

[0003]

Infrared rays, like light, have a strong straight traveling property and do not pass through an object. Therefore, the mutual communication partner is limited to a line-of-sight range, and the transmitter and the receiver must be held so as to face each other relatively accurately during communication. For this reason, when used for a hand-held device such as a remote controller, it is not suitable for sending complicated data because of its large communication capacity. This is because it is difficult for the user to keep the remote control handheld for a long time. Therefore, the remote controller for home use has a limitation that it has a small communication capacity and simple data, and a different one is used for each device used. As a remote controller for home use, T
There are Vs, VTRs, CDs, stereos, air conditioners, fans, etc., and they are beginning to flood the household.

Although a remote controller using infrared rays as a medium is limited to a line-of-sight range, it has a wide directivity and is a radio type remote controller using a transparent radio wave as a medium for controlling a device in an invisible place. Is advantageous. However, in the case of the wireless system using radio waves, if the application method is not appropriate, there is a risk of causing an accident such as the device of the neighbor's house starting to move freely.

Therefore, an object of the present invention is to make the above remote controller multifunctional, to control various equipment with one controller, to control equipment that cannot be seen, and to use the remote control in any posture and place. In particular, it is to provide a communication method using a plurality of media compatible with a conventional remote control system.

[0006]

Means for solving the above-mentioned problems are as follows. Firstly, a first communication means having excellent confidentiality like infrared rays and excellent omnidirectionality and transparency like radio waves. Secondly, the second communication means is also used. Secondly, a recognition code that can be distinguished from others is introduced, and the recognition code is mutually registered by the first communication means having excellent confidentiality. The second communication means, which is excellent in transparency, uses this identification code to confirm the communication partner so that only the partner registered in advance can communicate with each other. Also,
Thirdly, an extended data format, which is upward compatible with the conventional communication data, is introduced for the communication by the first communication means, and a simple control code is sent or communication is performed in the line-of-sight range. Is to be compatible with other equipment.

Specifically, the first and second communication devices each have a unique self-identification code, and each of them communicates with a first communication means for communicating using a unidirectional medium. A second communication means for performing communication using a medium having a wide directivity different from the medium used by the first communication means,
A data format of the medium by the first communication means,
A reader code consisting of a modulated signal of a specified length, which means sending remote control data from now on, and a blank time following it, followed by a custom code, a function code, and a custom code each made up of a specified number of bits. A code string compatible with the current one in which an inverted code in which each bit of each code is inverted for error checking is sequentially deployed, and then an expansion code with a specified number of bits and specified by this expansion code. And a new code string in which an extended code for checking an error and an inverted code obtained by inverting the bits of the data string are sequentially provided, and transmitted by the first communication means. At the time, the self-identification code is transmitted by using the new code string, and at the time of reception, it is transmitted by using the new code string. The code is taken in and the fetched partner identification code is stored in the storage means, and when transmitted by the second communication means, the self-identification code and the partner identification code are transmitted to call the other party, and the other party calls. At the time of calling, the response is made only when the other party identification code is registered in the storage means to enable effective communication.

By the above means, the remote control system can be operated without giving any trouble to the conventional remote control system, and the extended data format is effectively utilized for the association, and then the second communication means is used. It is also possible to send long-term data.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. A remote control transmission / reception device for controlling home appliances as a device equipped with the communication device of the present invention will be described as an embodiment. In this remote control transmission / reception device, the transmission means and the reception means are not separately separated as in the conventional case, but the control side and the controlled side are provided with transmission / reception means (communication means). Therefore, in order to clearly distinguish the devices, the names control side and controlled side are used, and the remote control transmitter / receiver on the control side is particularly called a controller.

FIG. 1 is an example of an extended transmission data format used in the first communication means to which the present invention is applied. The format of the transmission / reception signal used in the communication means is not limited to this example, and various embodiments are possible. However, in order to obtain compatibility with the conventional remote control system, the format shown in FIG. 1 is used. Is suitable.

In FIG. 1, this example is compatible with a conventional remote controller, an extension code (E0 to En) is added to the end of a conventional transmission signal, and a recognition code is transmitted using this extension code. It Since the identification code is intended to distinguish it from other devices, it requires a large number of bits of data. Therefore, the extension code is composed of a plurality of bytes, and the type of data and the number of bytes of data that follow are transmitted in the first byte (E0). If a method of expressing the type of data and the number of bytes is determined in a predetermined format, not only the recognition code but also various data can be transmitted.

In the present invention, for example, a second communication means by radio waves is provided. The transmission data format used by the second communication means may be any format, but here, for convenience, it is assumed to be a format similar to that of the first communication means. For example, the data format used by the second communication means has an error correction code in place of each inversion code inserted for error check by the first communication means, and the other part has the first communication. It is the same format as the data format used by the means.

A communication system using infrared rays will be described here. On the transmitting side, a current is intermittently applied to the infrared light emitting diode, and data is transmitted by the emitted infrared light. The wavelength of infrared rays is around 940 nm, which is the best efficiency for infrared light emitting diodes. The current that is passed through the infrared light emitting diode is usually 300 to 500 mA, but in order to operate it for a long time on a battery, the average current consumption is reduced to 1/10 or less of the peak current by intermittently applying modulation (about 38 KHz). ing. In the standard state, the light output is about 5 mW and the reach is 7 to 10 m.

On the receiving side, the infrared light is converted into an electric signal of about 50 μVp-p by the infrared light receiving diode of the light receiving portion, amplified and detected, and returned to logic signals of "0" and "1". The logic signal is usually processed by a microcomputer (hereinafter abbreviated as a microcomputer), and control corresponding to a predetermined code is performed.

The parts used in the conventional transmission / reception system in the format of the transmission / reception data shown in FIG. 1 will be described. The data sent at one time consists of a reader code, a custom code, and a data code. The reader code is the code that acts as the reader that sends the remote control data, the custom code is the identification code (also called "model code") to avoid confusion due to differences in manufacturers and machines, and the data code is the content that you actually want to control. Usually, it is data (also called “function code”) corresponding to the key of the remote controller. The custom code and data code are 8-bit codes in this example,
In order to avoid malfunctions due to data errors, send a legitimate code and a code with all bits inverted, and execute the command only on the receiving side when the exclusive OR for each bit of the legitimate code and the inversion code is true. To do. The data that is normally sent is 4 bytes long, excluding the leader code.

As described above, the conventional infrared remote controller transmits the model code and the function code, and the receiving side performs control corresponding to the function code if the model code is correct.

A general-purpose remote controller to which the communication device of the present invention is applied is tentatively called "corresponding to a wireless remote controller", and a TV receiver and a VTR can be controlled by infrared rays as in the conventional case.
When used as an infrared remote controller, the identification code of the transmitting side is transmitted after the above function code. In the infrared communication mode, the presence or absence of this identification code is not a problem for the purpose of maintaining compatibility with conventional remote control devices, but it is important for wireless remote controls. In the infrared communication mode, if the light axes of the light emitting element and the light receiving element do not match at a relatively narrow angle (in the case of a normal infrared communication device, this angle is within about 15 degrees with respect to the optical axis), communication cannot be established. Although one-to-one communication is always performed, the wireless remote controller can communicate with an unspecified number of people.

In order to prevent accidental accidents due to communication with an unspecified number of other parties, the communication device according to the present invention does not perform wireless communication with other parties than those who have registered identification codes in advance. And However, if all registration of this identification code is left to the user, the burden on the user increases and the usability of the device deteriorates. Therefore, an automatic registration method is introduced. Due to the straightness and directivity of infrared rays, there are very few opportunities to communicate with infrared rays between devices in general households and general-purpose remote controls held by outsiders. Even if the identification code is automatically registered, the identification code of the general-purpose remote controller held by an external person is not registered in the device in the general home, and the safety is guaranteed.

The safety here means that the remote control does not cause an accident in which the device performs an operation unintended by the user, and an outside person intentionally steals the identification code,
It does not mean to prevent loss. For such an accident, another confidential communication function is required as a communication means, and should exist separately from the present invention.

The straightness and the directivity are not the characteristics of only infrared rays, but the same is true for radio waves having an extremely short wavelength (quasi-millimeter wave to millimeter wave), and the communication means used for registering the identification code is not limited to infrared rays. Absent.

[0021] When the receiving side of the "wireless remote control" receives the recognition code together with the command in the infrared communication mode, it stores it in its own memory and a code (ACK) meaning "OK".
And send your own identification code in infrared communication mode. If the received data does not contain the recognition code, no reply will be sent. The general-purpose remote controller that receives the reply also stores the other party's identification code in its own memory. In the infrared communication mode, there is a possibility that the reply cannot be received correctly, and if there is an error in the received recognition code, the registration will not be registered. However, when it is necessary to communicate in the wireless mode, a procedure for separately registering the identification code of the other party may be prepared.

For wireless communication, the designated call method for designating and calling the recognition code of the other party is the most reliable, but when a general-purpose remote controller is assumed, the communication partner is not fixed and always changes. Therefore, the infrared communication mode is advantageous within the line of sight, but wireless communication is advantageous for complicated control and exchange of a large amount of data. Therefore, even if there is originally data to be wirelessly communicated, initialization is performed in the infrared communication mode, and the actual data transmission saves the user from having to specify the communication partner each time by using the wireless communication.

As a supplementary means, a non-volatile storage means is provided with a work storage area in addition to the storage area for the recognition code so that the latest association and user's setting items are stored and referred to each time wireless communication is performed. The necessary data will be updated to simplify the operation. There are various methods and formats for setting the specific work area, and those skilled in the art can easily design the work area, and thus detailed description thereof will be omitted.

FIG. 2 is a diagram shown for explaining the basic operation of the apparatus of the present invention, and is an operation explanation for the case of associating one-to-one devices. The control side is the first communication device (remote control), and the controlled side is the second communication device (for example, TV receiver). Each of the first and second communication devices has a unique self-recognition code, and each has a first communication means for performing communication using a unidirectional medium (infrared ray). Further, the first and second communication devices each have a second communication unit that performs communication using a medium (radio waves) having a wide directivity different from the medium used by the first communication unit. The first and second communication devices are
It has a storage means for storing the partner recognition code.

The first communication means is used when the devices are associated with each other. That is, the self-identification code is transmitted at the time of transmission by the first communication means, the partner recognition code is fetched at the time of reception, and the fetched partner recognition code is stored in the storage means of the self. First, when the first communication device transmits the self-identification code, the second communication device stores the partner identification code (of the first communication device) and the self-identification code (of the second communication device). ) Together with a response signal (ACK). Here, the first communication device also stores the partner recognition code (of the second communication device) in the storage means, and the association is completed.

After this association is completed, the first
Even if communication is performed by the communication means, there is no problem because the identification code of the first communication device is already stored in the second communication device. However, when a new association is performed by another communication device (another remote controller), the second communication device performs the latest association, that is, stores the latest recognition code of the remote controller. Clear the old recognition code.

This operation can also be used to cancel (cancel) the association with a device for which association is no longer necessary, but a cancellation mode may be set specially. On the other hand, when associating a plurality of TV receivers with one remote controller, a plurality of partner recognition codes are stored in the storage means on the remote controller side.

After the above-mentioned association is completed, the first communication device calls the other party by transmitting the self-identification code and the stored other party identification code when transmitting by the second communication means. When there is a call from the other party, the second communication device collates the other party recognition code registered in the storage means with the received other party recognition code, and responds only when they match to perform effective communication. Of course, it does not respond to calling a recognition code different from its own recognition code.

FIG. 3 shows operation requirements in a further application example of the present invention. In FIG. 3, 111 is the first
Communication device, reference numeral 112 is a second communication device, and reference numeral 113 is a third communication device, each of which includes a transmitting / receiving device having the same configuration. The configuration of this transmission / reception device will be described later. Now, the first communication device 111 is a controller as a remote controller, and the first communication device 112 is a TV receiver and the third communication device 113 is a VTR. Below, the controller 11
1, the TV receiver 112 and the VTR 113 will be described.

Here, the basic features of the communication device will be briefly described. The communication device according to the present invention has a first communication device and a second communication device, respectively, and the first communication device is a communication device using infrared rays having a unidirectional characteristic. It is used in the case of associating operation, and in the case of communication to conventional equipment,
The second communication means is a communication means using a radio wave having a wide directivity, and is used in the case of normal general device control.

The controller 111 of FIG. 3 is provided with a menu button for selecting various operations. If you press the menu button and press the desired menu number from the displayed menu, various setting conditions are displayed as necessary, and you can proceed with the setting interactively.

When the association is selected from the menu, it is displayed as if "direct registration" or "indirect registration" is selected.
The association means that the controller 111 and the other device store the recognition code of each other, and the association is established. Direct registration will be described with reference to FIG. In this case, unidirectional infrared rays are used as the communication medium.

The controller 111 is provided with a liquid crystal display unit, ten keys, and function keys.
Now, if you select indirect registration, the message "Please press the appropriate key toward the first device" appears. First, when the designated key is pressed toward the TV receiver 112, the recognition code is exchanged between the TV receiver 112 and the controller 111. At this time, as indicated by the solid line, the self-identification code is transmitted at the time of transmission, the partner identification code is received at the time of reception, and the captured partner identification code is stored in the storage means of the self. First, controller 1
When 11 sends the self-identification code, TV receiver 112
Stores the partner identification code (of the controller 111) and sends the self-identification code (of the TV receiver) together with the response signal (ACK). Here controller 1
11 also stores the partner recognition code (of the TV receiver 112) in the storage means and completes the association.

When the communication is made without any error, the controller 111 displays "Please press an appropriate key toward the next device". Next, as shown by the dotted arrow, when the key instructed to the VTR 113 is pressed, the recognition code is exchanged between the VTR 113 and the controller 111. At this time, since the indirect registration mode is designated, the controller 111 transmits the self-recognition code and the TV recognition code of the TV receiver. Then, the VTR 112 recognizes the identification code of the controller and the TV.
The recognition code is stored in the storage means, and the self (VTR) recognition code is transmitted together with the response signal. When the communication is performed without error, the controller 111 stores the TV recognition code and the VTR recognition code in the storage unit in association with each other.

On the other hand, at this point, the VTR 113 is associated with the TV receiver 112 and stores the recognition code of the controller 111 and the TV recognition code.
The V receiver side is only associated with the controller 111.

Then, again, in the controller 111, a message "Please press an appropriate key toward the first device again" appears. Then, as indicated by the alternate long and short dash line, when the designated key is pressed toward the TV receiver 112, the T receiver 112 and the controller 111 communicate with each other to establish an association. At this time, the controller 111 transmits the VTR recognition code together with the self recognition code. Therefore, in the TV receiver 112, the VTR1
12, the identification code of the controller 111 and the VTR identification code are stored.

Then, if the communication is made without any error and the association is correctly made by both the VTR 112 and the TV receiver 113, the controller displays "Association is completed. Do you want to associate another?". When no other association is performed, the “No” key is pressed to end the operation.

Since the above method is complicated, association may be performed by the following simple method. First, direct registration is performed 1: 1 between each device and the controller 111.

Next, the controller 111 is set to the introduction registration mode. At this time, on the display of the controller 111, "Please operate the key of the device to associate with each other."
Is displayed. In this case, since it is the TV receiver and the VTR, the displayed key is operated.

From the controller 111 to the TV receiver 112
The VTR 113 recognition code introduction registration is performed. Generally, registration is not performed unless direct communication is made in the infrared mode, but indirect registration of the recognition code is allowed only through a device that registers both recognition codes.

Specifically, the VTR 11 is set in the TV receiver 112.
When introducing and registering the recognition code of 3, the controller 11
1 to the TV receiver 112, followed by the recognition code of the introduction registration, the recognition code of the controller 111 itself, the recognition code of the TV receiver 112 that is the current communication partner, and the registered VT.
The recognition code of R113 is transmitted.

At this time, if the recognition code of the controller 111 is not registered in the TV receiver 112, the communication itself is not accepted and the introduction registration is not performed. When the association is performed as described above, the following cooperative operation can be obtained between the TV receiver 112 and the VTR 113 in a general normal operation. When the cooperative operation mode is set and the operation of turning on the power of the VTR 113 is performed, the VT is transmitted from the controller 111 by radio waves.
A controller identification code and a VTR identification code are transmitted to R113, and a power-on command as control data,
Further related operation commands are sent. It is preferable that these commands are transmitted by extension data described later. Then, the VTR 113 collates the partner recognition code and the self recognition code, and if the codes on the reception side and the storage side match, recognizes that the related operation command is sent. As a result, this time, the VTR 113 accesses the TV receiver 112 by communication means using radio waves. Upon receiving the power-on command from the VTR 113, the TV receiver 112 turns on the power and returns ACK. TV
If the power of the receiver 112 is not turned on, V
After receiving the ACK, the TR 111 sends a command for switching the TV receiver 112 to the video channel.

There is a case where the power of the TV receiver 112 is already turned on, but at this time, another viewer may be watching the TV, so that it is displayed to warn the controller 111. "Please check TV" is displayed on the section. The operation of this is that the receiving unit of the TV receiver 112 recognizes the cooperative operation, that is, the associated VTR.
When the command from 113 is received and when the power supply of self is turned on, it is performed by the TV receiver 112. That is, the TV receiver 112 sends a warning command to the controller 111. Next, the viewer is watching TV
Check the receiver 112 and if there is no problem, check the VTR 112
The following operations (play, recording, etc.) are executed. Then V
The TR 113 sends a command for switching the TV receiver 112 to the video channel.

When the warning display "Please check TV" is displayed, if the related operation of the TV receiver 112 is prohibited, the user operates the controller 111 to operate the cooperative operation cancel key. Then, the VTR 113 stops the cooperative operation and shifts to the normal unique operation mode.

The above system is further provided with the following functions. The VTR 113 is not always installed in the same room A at home. It may be moved to another room B. In such a case, the controller in room B and the second controller installed in room B
The TV receiver of the above is associated and the cooperative operation becomes possible. In this case, the association for cooperation is redone from the beginning, but on the controller side of the VTR and room B, the recognition code of the cooperation partner that has been registered so far is automatically deleted, and the latest recognition code of the cooperation partner. Will be stored.

Furthermore, the above system is also provided with the following functions. For example, when a controller for each room, a VTR and a TV receiver are installed in each of the rooms A and B, when the VTR and the TV receiver in the room A are associated so as to obtain a cooperative operation, a controller for the room B The second communication means (communication means using radio waves as a medium) is programmed so that the VTR and the TV receiver in the room A do not operate. This can be easily done by programming to reject the response when the partner identification code transmitted by the radio wave of the controller in the room B is confirmed. However, the controller of the room B is programmed so as to respond to the access using the medium of infrared rays.

Although the above-mentioned example is a device at home, it can be effectively utilized in the workplace. For example, if you turn on / off the lighting of a specific place (area) with the controller,
It can be set so that the copy device at the location is automatically turned on / off or the air conditioning is turned on / off. Of course, since the unidirectional first communication means is prioritized, it is possible to control individual devices using the first communication means.

FIG. 4 is a functional schematic diagram of the communication device of the present invention. In FIG. 4, reference numeral 211 denotes a first communication means, which is a communication means having a narrow directivity to the extent that it is substantially difficult to intercept a third party or having high confidentiality. 212 is
It is the second communication means, and is superior in omnidirectionality and transparency as compared with the first communication means 211. Reference numeral 213 is a self-identification code section that holds a self-identification code that is unique to the self and is identifiable from the other, and the first and second communication means 211 and 212.
Uses this self-identification code each time it communicates. 214
Is a storage means capable of storing a finite number of partner identification codes of communication partners. Reference numeral 215 is a recognition code registration means, which extracts the partner recognition code of the partner communicated by the first communication means 211 and stores it in the storage means 214. 2
A communication control unit 16 controls the second communication unit 212 so that effective communication can be performed only with a communication device having a partner identification code stored in the storage unit 214 in advance.

Reference numeral 217 denotes an interface means with a device body requiring a communication function. For example, if the device is a remote controller, data is exchanged with a key for selecting a command and a display for displaying a message. And means for transmitting data to the control circuit in the case of a controlled device. In recent years, it has become common to use a microcomputer to control the communication device, and the identification code registration means 215 and the communication control means 21 are used.
6 is realized by software and is not necessarily a necessary constituent element as actual hardware. As the extended transmission data format used for the first communication means 211, the format described in FIG. 1 is used.

The schematic diagram shown in FIG. 3 is shown to include each embodiment of the present invention. Therefore,
The second communication means 212 is capable of bidirectional communication, but may be unidirectional.

The second communication means 212 may be used exclusively for the unidirectional receiving side. And communication control means 216
When the second communication unit 212 is called by a communication partner using radio waves, the second communication unit 212 executes the operation command only when the partner recognition code is registered in the storage unit 214, and the partner recognition code is registered. If not, the operation command is ignored.

The second communication means 212 may be used only for unidirectional transmission. In this case, the remote control side is effective. At this time, at the time of transmission, the self-identification code and the partner identification code registered in advance are transmitted, and the communication partner who communicates using radio waves is called. Then, the communication control means 216 prohibits the calling of the other party when the second communication means 212 performs the transmission and when the other party recognition code corresponding to the operation input is not in the storage means 214.

FIG. 5 is an external view of the controller (control-side general-purpose remote controller) and its internal structure. In FIG. 5, the controller includes an infrared transmitter / receiver 10, an ultrashort wave transmitter / receiver 20, and a control circuit unit 30. The infrared transceiver 10 has an output data buffer 11 and an infrared light emitting circuit 12 to which a transmission output from the output data buffer 11 is supplied. Further, the infrared light receiving circuit 13 and the input data buffer 14 into which the received signal is introduced are provided. The ultrashort wave transceiver 20 has an output data buffer 21 and a transmission circuit 22 to which the transmission output from the output data buffer 21 is supplied. It also has a transmission / reception switching circuit 23 through which the output of the transmission circuit 22 can pass and an antenna 24 to which the output of this circuit is supplied. Furthermore, it is provided with a receiving circuit 25 into which a signal from the transmission / reception switching circuit 23 is introduced and an input data buffer 26 into which a receiving signal from this circuit is introduced.

The control circuit section 30 includes a CPU (central processing unit) 31, a ROM 32, a RAM 33, an EEPROM 34, and a display section 3 connected to the CPU 31.
5, a voice input / output unit 36, a key input unit 37, and an activation sense unit 38.

FIG. 6 shows a controlled side (for example, a TV receiver,
It is a figure which shows the circuit structure of the remote control transmission / reception device of VTR, an air conditioner, etc.). In FIG. 6, the controlled remote control transmitter / receiver includes an infrared transmitter / receiver 40, an ultrashort wave transmitter / receiver 50,
It is composed of the control circuit unit 60. Infrared transceiver 40
Has an output data buffer 41 and an infrared light emitting circuit 42 to which a transmission output from the output data buffer 41 is supplied. Further, the infrared light receiving circuit 43 and an input data buffer 44 into which a received signal from the infrared light receiving circuit 43 is introduced are provided. The ultra short wave transceiver 50 is
It has an output data buffer 51 and a transmission circuit 52 to which the transmission output from this is supplied. It also has a transmission / reception switching circuit 53 through which the output of the transmission circuit 52 can pass, and an antenna 54 to which the output of this circuit is supplied. Furthermore, it is provided with a receiving circuit 55 into which a signal from the transmission / reception switching circuit 53 is introduced and an input data buffer 56 into which a signal received from this circuit is introduced.

The control circuit section 60 includes a CPU 61, a ROM 62, a RAM 63 connected to the CPU 61,
An EEPROM 64, a display unit 65, a voice input / output unit 66, an interface unit 67, and an activation sense unit 68 are provided.

The communication device of the present invention is a CPU that controls the whole based on various control programs stored in ROM.
The individual devices (transmission / reception devices) have unique identification codes for identifying each other. The recognition code is an independent dedicated ROM
However, in this example, different numbers are written in the program ROMs 32 and 62 at the time of manufacture. Therefore VT
Even if the R and the TV receiver have the same configuration of the remote control transmission / reception device, the recognition code written in the ROM is naturally different. RAM3 is used for various data exchanged by communication.
Although it is processed in the work areas of Nos. 3 and 63, the identification code of the communication partner, the customized startup option, the data to be retained for a long time, and the like are stored in the EEPROM 34,
Stored in 64.

In the actual configuration, the power supply circuit and CP
A timing signal (clock) generating circuit is required for the operation of U, but the description of the operation that does not interfere with the operation of the present invention is omitted. Similarly, the keyboard of the remote controller on the control side may be not only mechanical key switches but also a touch panel incorporated in the display unit. For convenience of description, those are included in the key input unit, and detailed description thereof will be omitted. In the present embodiment, the description is made assuming that the display unit and the voice input / output unit are provided, but it is not always essential, and it may be omitted depending on the functions of the controller and the remote control transmission / reception device.

The remote control transmitter / receiver is in a standby state with low power consumption when the communication function is not used. The signal receiving section (13 and 2 in FIGS. 5 and 6) is always energized.
5, 43, 55) and the activation sense units 38, 68. Also, the transmission / reception switching circuits 23, 53 of the ultra-high-wave transceivers 20, 50 are always on the receiving side in the power-off state). In the controllers 30 and 60, when the user presses any key to transmit in the standby state, the activation sense units 38 and 68 detect the key sense signal, and the entire power is turned on. When the necessary processing is completed and no key is pressed for a certain period of time, the state of waiting is resumed.

In the controlled remote controller, an activation signal is sent from the device body to the activation sense section 68 via the interface section 67, and the power of the transmission / reception circuit is turned on. Further, when any signal is received by the signal receiving circuit 55, the power of the transmitting / receiving circuit is turned on via the activation sense unit 68, the content of the signal is analyzed, and if the communication is normal, the signal communication process is started. What kind of processing program is started when the power is turned on depends on the port of the activation sense part to which the sense signal is added and the type of key pressed. Since this is a very general procedure for equipment, detailed description is omitted.

A TV corresponding to a wireless remote controller will be specifically described below.
The operation of each unit will be described in more detail with reference to a flowchart by taking an example of remote control operation of a receiver. The following examples of FIG. 7 and FIG. 8 show the operation of associating the controller transmitting the command for turning on / off the power of the TV receiver and the remote control receiving unit of the TV receiver receiving the command.

FIG. 7 is a flow chart showing the operation of the controller (control side). TV with controller
When the ON key of the key input unit 37 is pressed toward the receiver (step A1), a key sense signal is generated, and the entire power is turned on via the activation sense unit 38. The normal operation is activated as an infrared communication mode that operates like a conventional remote controller. When communicating by radio waves, various methods are possible such as setting the mode selector switch to the wireless mode and pressing the command key, or pressing the wireless mode key and then the command key to perform a two-step operation.

The key data is taken into the CPU 31 (step A2), the type of the pressed key is judged, and the necessary data is sent to the infrared output data buffer 11 (step A3).

An infrared signal is sent from the infrared light emitting circuit 12 to the TV.
It is fired toward the receiver. The conventional infrared remote controller
One operation is completed in this step, and the mode shifts to the standby mode (step A4).

Next, it is confirmed whether ACK has been returned (step A5). Like the normal infrared command, the ACK is also composed of a custom code following the reader code, a data code, and an extension code. The data code here is purely in the sense of meaning and does not mean that the data itself has meaning. Absent. It is intended to determine that the other device is compatible with the wireless remote controller by returning the ACK and prepare in advance so that communication by the wireless means can be performed without any trouble. The check is repeated for a fixed time until ACK is returned (step A6). AC within a fixed time
When K is not returned, it is determined that the TV receiver is not wireless compatible (step A7). At this time, EEPR
The latest associated area of the work area of the OM is cleared, the standby mode is entered, and the controller is powered off after a certain period of time.

Here, the latest association is a recognition code of the other party who has communicated in the infrared mode at the latest time, and is implicitly understood when the user tries to communicate in the wireless mode without designating the other party. Is a communication partner automatically designated by the controller.

Therefore, when this associating area is cleared or an error code is written, it is not possible to communicate in the wireless mode, and the user needs to make a new association. This association may be performed once in the infrared mode. When the association is performed, the partner identification code is stored in this area.

That is, when the ACK is returned from the TV receiver, it is checked whether or not the recognition code of the TV receiver returned at the same time as the ACK has an error (step A8). If there is an error in the recognition code, write the error code instead of the recognition code and shift to the standby mode (step A
9).

If there is no error in the recognition code, EEPRO
It is written as a partner recognition code in the latest association area of the M work area (step A10). When the recognition code is successfully received, it is further checked whether it is already registered or a new recognition code. If it is already registered, it shifts to the standby mode (step A1).
1). In case of unregistered recognition code, further EEPROM
The identification code registration area 34 is checked to see if it can be added. If it is possible to add, step A described later
Move on to the new registration of 16 recognition codes. If the additional area is insufficient, it is checked whether there is an erasable recognition code (step A13).

Here, the recognition code storage area has an area for storing a storage attribute corresponding to the recognition code in a one-to-one manner so that the user can perform a special operation to designate the erasability. It is assumed that it is configured, and all recognition codes that have been registered only by normal procedures cannot be erased. Of course, in a model having no memory attribute area, this step is omitted and the old recognition code is forcibly rewritten or the next step is executed.

When the registration area of the recognition code cannot be erased and the new code cannot be registered, a warning sound is emitted from the voice output unit 36, and a message to that effect, such as "Cannot register new recognition code" is displayed. It is displayed on the display unit 35 and the registration of the recognition code is stopped (step A14).

If there is an erasable recognition code, the oldest recognition code among them is deleted, and if necessary, data rearrangement is performed (step A15). The processing method for dealing with this lack of additional area is not limited to the method described here. For example, when an area shortage occurs, a warning is issued to allow the user to select erase data, and if the EEPROM registration area is expandable, the user is notified to additionally set a new registration area. It is also possible.

The recognition code is written in the position indicating the latest rank in the registration area (step A16). Next, it shifts to the standby mode and turns off the power after a certain time (step A
17).

FIG. 8 is a flow chart for explaining the operation of the remote control receiver of the TV receiver on the controlled side.
The control program activated depending on the received mode is different, and is the infrared reception mode in this example.

The infrared light receiving circuit 43 of the TV receiver, which has received the infrared signal from the controller, starts the activation sensing unit 68.
The power of the entire remote control transmitter / receiver is turned on via (step B1). The data receiving process of the infrared light receiving circuit 43 may be controlled by the CPU, but for the sake of convenience of description, a dedicated receiving circuit is incorporated here, and the received data is subjected to a simple error check and then the input data buffer 44.
It is assumed to be stored in. If the custom code and the function code (first and second bytes) are incorrect, the entire remote controller transmission / reception unit will not be activated. If the other received data has an error, an error code is written in the position of the corresponding data (step B).
1).

The received data is fetched from the input data buffer 44 into the predetermined work area of the RAM 63 via the CPU 61, and the input data buffer is emptied to prepare for the next command input. Normally, it is rare to send long data in infrared mode, but if very long data (which can be judged by the first data of the extension code) is received, RA
The temporary storage area is set in M63, and the input data buffer 4 does not overflow the input data buffer 44 at appropriate time intervals.
The received data is transferred from 4 to the temporary storage area (step B2). A detailed operation flow regarding this control is omitted here.

Next, the third byte (extended code) of the received data is checked (step B3). If the third byte is a null code (no data), it is regarded as an operation by the conventional remote controller, and the function code is checked in step B12 described later. Although the difficulty of checking the received data depends on the data format,
If the command of the infrared remote controller has a fixed length of 2 bytes including the custom code and the function code, this check is extremely easy. The check only needs to check that there is valid data (not an error) in the third byte and thereafter. Also, the execution of the function code is limited to when a command is received in infrared mode,
If the mode in which the command was received is wireless, then the execution is abandoned unless the identification code is included. Even if the recognition code is included, if it is not registered in the EEPROM 64, the execution is similarly abandoned.

If the third byte is a special data transfer mode, a separately prepared data processing routine is activated. The description of the contents of the special processing is omitted here.

If there is an error code in the third byte of the received data, an extended code error is displayed on the display (step B4), and the function code is checked in step B12 described later. Execute the command but ignore the extension code.

If the third and subsequent bytes of the received data are identification codes, it is determined whether or not there is an execution command,
If there is no execution command, it is determined that the recognition code has already been registered and the function code is checked.

When the recognition code is present and the execution command is present, first, the remote controller transmitter / receiver side of the TV receiver returns an acknowledgment (ACK) code and its own recognition code to the controller by infrared rays (step B5). ). The check flow of the identification code itself is omitted here.

Next, it is confirmed whether or not the recognition code of the remote controller received earlier is stored in the EEPROM 64 (step B6). If stored, step B1 described later.
Move on to the check of function code 2. In the following drawings, the identification code is abbreviated as ID.

If the recognition code is not stored, preparation for new registration is made. First, the recognition code registration area of the EEPROM 64 is checked to see if it can be added (step B7). If the addition is possible, the process proceeds to the registration of a new recognition code in step B11 described later. The new registration of the identification code is limited to the case where the command is received in the infrared mode, and the new registration is not performed when the mode in which the command is received is wireless.

If the additional area is insufficient, it is checked whether there is an erasable recognition code (step B8).
Here, in the storage area of the recognition code, 1: 1 is added to the recognition code.
It is assumed that it has an area to store the memory attribute corresponding to, and is configured so that the user can perform a special operation and specify that deletion is possible. All recognition codes are not erasable. In a model having no storage attribute area, naturally, this step is omitted and the old recognition code is forcibly rewritten or the next step is executed.

When the registration area of the recognition code cannot be completely erased and a new code cannot be registered, a warning sound is emitted from the voice output section 66 and a message to that effect (for example, "Cannot register new recognition code") is displayed. It is displayed on the display unit 65 (step B9), a message is sent to the remote controller, registration of the recognition code is stopped, and execution of the function code is started (step B12). In this case, the controller may not be in a position to receive infrared rays, or the controller may be used for other purposes, and there is a possibility that the controller cannot receive the warning message in the infrared mode.

Therefore, it is natural to transmit a message by radio waves, and in the case of an important message, it is necessary to wait for a certain period of time until a confirmation signal is output from the other party. Communication using radio waves generally requires a complicated procedure to complete the communication in order to avoid interference. FIG. 9 shows a flowchart showing a detailed message transmission process. This will be described later.

When the importance is low and there is no need to wait for confirmation of the other party, it is possible to send only a message without waiting and move to the next processing. Even if the identification code is not registered in both devices, it is possible to display only a message.

If there is an erasable recognition code, the oldest recognition code among them is deleted (step B1).
0), rearrange data if necessary. The processing method for dealing with this lack of additional area is not limited to the method described here. For example, when an area shortage occurs, a warning is issued to allow the user to select erase data, and if the EEPROM registration area is expandable, the user is notified to additionally set a new registration area. It is also possible.

A new recognition code is registered in the registration area (step B11). First, analyze the received command,
It is checked whether the function code is executable (step B12). In the case of an executable command, the command is sent from the remote control receiving unit to the interface unit 67 with the main body and executed by the control unit of the main body (step B13). The remote control receiver ends all the processing and enters the standby mode (step B14).

If the received command cannot be executed for some reason, a warning sound is emitted from the voice output section 66,
A message to that effect (for example, "command cannot be executed") is displayed on the display unit 65, and a similar warning message is sent to the controller that issued the command.
Execution of subsequent commands is abandoned, and the remote control receiver enters a standby state after a lapse of a predetermined time (steps B15, B
16).

In FIG. 9, for example, wirelessly from a TV receiver,
4 shows a procedure for sending a wireless message to a remote control. Check the receiver output to see if the call channel is free (step C1). If it is in use, the check is repeated after waiting for a predetermined time (step C2). If the call channel is not available even after waiting for a predetermined time, the message "Abandon communication because call channel is not available" is displayed on the display unit and the transmission of the wireless message is abandoned (step C3).

When the processing of the device body is affected by the abandonment of the communication, the remote control transmission unit is configured to notify the device body of the communication result, and the device body responds to the result of the processing. To change. In order to improve the communication efficiency, the calling procedure becomes complicated, but it is necessary to distinguish the calling channel and the data transmission channel, provide the calling channel independently, and set the time limit for occupying the channel by one calling. preferable. The display of abandonment of communication is terminated after a certain time has elapsed or when the user presses a specific key, and the power is turned off after a predetermined time has elapsed.

Similar to the infrared communication format, data including a leader code, a custom code, a function code and an extension code is transmitted (step C).
4). Here, the function code may be a calling code such as a designated call or a batch call, or a direct command in the case of a simple command. In the present example, it is a message send command, and the message itself is sent at the same time with the subsequent extension code. . The extension code specifies the type of data to be transmitted and the number of bytes according to the type of call, then specifies the recognition code of the calling party after the self recognition code, and then adds the message itself.

Wait for a response from the calling party for a predetermined time (step C5). The calling is repeated a predetermined number of times until a response is obtained (step C6). If no response is received from the calling party after repeating the call a predetermined number of times, the call is abandoned, and if there is a display means, a message saying "The call was abandoned because no response was received" is given. The time is displayed (step C7).

When the command is transmitted directly and the response "OK (acknowledgement)" is obtained from the calling party, it is considered that the command has been executed normally. After the message is displayed for a predetermined time, the standby mode is entered (step C8).

The example of the above flow chart is an example in which the TV receiver is switched to the wireless mode and the remote controller is called while something happens during the infrared mode operation.
The communication partner can be identified by referring to the latest association. However, if the user is using the wireless mode from the beginning using the controller, it is necessary to clarify the communication partner. In this case, the partner identification code and the self-identification code are used together to confirm the communication partner and perform communication. It is better to prepare some specification methods to specify the communication partner and use them properly depending on the case.

The first designation is an implicit designation, and if the other party with whom the user wants to communicate has communicated in the infrared mode at the latest time, it is stored in the latest association, so the infrared mode is continued after the wireless mode key. You only have to perform the same key operation as the mode. At this time, if there is a recognition code reception error in communication in the infrared mode, the latest association data cannot be used, but the recognition code that has already been registered as a rescue method is displayed sequentially and the desired one is selected. select.
Here, the recognition code itself is usually a list of meaningless characters, and it is difficult to specify which device is desired. Identification is facilitated by providing an attribute storage area corresponding to the recognition code on a one-to-one basis, storing a name abbreviation designated by the user, and displaying the name abbreviation instead of the recognition code.

The second designation method is a method of selecting a radio designation call from the menu mode. In this case as well, the device can be easily selected by using the name abbreviation instead of the recognition code for the device display. The third method is a direct designation call that more positively uses the name abbreviation. Name abbreviations often use letters, and because many keys must be used for direct designation, a special device with many keys is required.

The operation flow charts of FIGS. 7, 8 and 9 described above are shown in consideration of simultaneously representing the respective embodiments of the present invention. Therefore, the present invention is not limited to the above embodiment, and various functions can be developed by installing various programs in the CPU.

For example, when a communication request or an operation command is received from an unregistered communication partner whose memory identification code is not stored in the storage means in advance, the operation command is ignored by not responding, or it is specified in advance. Alternatively, the operation command may be ignored by responding with a reception rejection signal.

Further, the operation command is ignored by not responding, or the operation command is ignored by responding with a reception refusal signal defined in advance, and it is voluntary for the unregistered communication partner. Communication may be prohibited. That is, even if a VTR play operation is performed by an operation input, it is possible to control so that communication is not performed when the VTRs themselves are not associated with each other.

Furthermore, in the above description, the storage means for storing the partner recognition code has a storage portion for storing a plurality of the partner recognition codes received by the transmitting / receiving means 40.
Then, the CPU 61 as a program processing unit sequentially additionally registers in the storage unit each time it receives a partner recognition code, and when the code storage area of the storage unit is over, the old partner recognition code is rewritten. I did it.

However, the storage means is the transmission / reception means 1
The other party recognition code storage unit for storing only the other party recognition code received at 0 (or 40) is provided, and the CPU 3
1 (or 61) may newly update and register the contents of the storage unit each time the partner recognition code is received. By doing this, you can always communicate only with the remote controller with the latest association, and if you move to the next room,
It no longer responds to remote controls in the old room.

Furthermore, the program of the CPU 31 (or 61) may be designed in consideration of the following operational convenience. That is, the key input unit 37 (or 6
Storage unit 34 (or 64) according to the operation signal from 7)
So that the user can confirm the contents of the area
(Or 65) and a means for displaying the other party recognition code are sequentially additionally registered in the area of the storage unit 34 (or 64) each time the partner identification code is received, and when the area is over, a message to that effect is displayed on the display unit 35. (Or 65) has a means for displaying. Then, the memory attribute paired with the partner recognition code is rewritten according to the operation signal from the key input unit 37 (or 67), and the content of the memory attribute is "0" or "1".
According to the above, there is also provided means for making it possible to set update or non-update of the partner recognition code.

Furthermore, as another method, the CPU 31
The program (or 61) may be designed in consideration of the following usability in operation. The storage unit 34 (or 64) has an area for storing a plurality of the partner recognition codes and a storage attribute corresponding to the partner recognition code on a one-to-one basis. Then, the CPU 31 (or 61) causes the storage unit 34 (or 6) in accordance with the operation signal from the key input unit 37 (or 67).
The display unit 3 is provided so that the user can confirm the contents of the area 4).
5 (or 64) and a means for displaying the other party recognition code are sequentially additionally registered in the area each time the partner identification code is received. When the area is exceeded, a message to that effect is displayed on the display unit 3
5 (or 65) is displayed. Then, while the message is displayed on the display unit 35 (or 65), the memory attribute is rewritten according to the operation signal from the key input unit 37 (or 67) to update the partner recognition code,
Alternatively, it has means for making it possible to select whether to set non-update or to change or expand the area.

As described above, according to the method and apparatus, the application in the field such as an infrared remote controller, which has been so far used only in the line-of-sight range because of its strong straightness, is widened, and the effect of omnidirectionality and transparency of radio waves is obtained. With this, complicated data can be exchanged, and various devices can be easily controlled with a single controller. The remote control can be used in any posture and place, and various information can be sent / received, called / standby, etc. It becomes possible to provide multifunctionality which cannot be obtained by the infrared communication means. Further, the identification code, the storage means, and the communication control means eliminate wireless communication with a device for which the identification code is not registered, thereby preventing an unexpected malfunction. Furthermore, by introducing an extended data format that is upward compatible with conventional infrared communication data, conventional equipment can be used as it is, and prompt communication is possible without the complicated communication procedure required for wireless communication. It has the advantage of being able to perform complicated data transmission that cannot be transmitted by the conventional data code and the operation requiring a complicated procedure by wireless communication. For example, it is assumed that the TV receiver and the VTR are in a standby state, and the VTR contains a videotape that is reserved for recording. The user can instruct VTR and TV automatically by instructing video play from the general-purpose remote control.
The power of the receiver is turned on, the TV selects the video channel, and if necessary, the tape is rewound to the position where the recording was started and the reproduction is automatically started. During this time, it is possible for the user to wirelessly exchange information between the general-purpose remote controller, the VTR, and the TV receiver without any action, and the required operation can be automatically advanced. Such an operation is not sufficient only by the communication procedure performed by the conventional infrared remote controller, and it becomes possible only when there is a procedure of using wireless communication means and confirming the recognition code.

[0107]

As described above, according to the present invention,
By making the remote controller multifunctional, it is possible to control various devices with one controller, control devices that are invisible, and use the remote controller in any posture and place. When the controlled devices are grouped and the first controlled device is controlled by the remote controller, the second controlled device associated with the first controlled device is automatically controlled in association with the controlled device. As a result, it is possible to eliminate the trouble and mistake of the user's operation.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a data format used in a first communication means in a communication method using a plurality of media according to the present invention.

FIG. 2 is an explanatory diagram of a basic operation of the device according to the present invention.

FIG. 3 is an explanatory diagram of a basic operation of another device according to the present invention. .

FIG. 4 is a diagram showing a basic configuration of an apparatus to which the present invention is applied.

FIG. 5 is an external view of the controller and its configuration diagram.

FIG. 6 is a circuit configuration diagram of a controlled remote controller transmission / reception device.

FIG. 7 is a flowchart showing an example of command transmission from the controller.

FIG. 8 is a flowchart showing the operation of a remote control receiving unit.

FIG. 9 is a flowchart showing a wireless message transmission procedure.

[Explanation of symbols]

211 ... First communication means, 212 ... Second communication means, 2
13 ... Self-recognition code, 214 ... Storage means, 215 ...
Registration means, 216 ... Communication control means, 217 ... Control data input / output interface, 10 ... Infrared transmitter / receiver, 20
... ultra-short wave transceiver, 30 ... control circuit section, 40 ... infrared transceiver, 50 ... ultra-short wave transceiver, 60 ... control circuit section.

Claims (4)

[Claims] 1. A first communication means, wherein each of the first and second communication devices has a unique self-recognition code, and each communicates using a unidirectional medium, and the first communication means. A second communication means for performing communication using a medium having a wide directivity different from the medium used by the first communication means; and a storage means for storing a partner identification code, the first communication The data format of the medium by means is composed of a modulated signal of a prescribed length which means that remote control data is to be sent from now on, a leader code consisting of a blank time following the modulated signal, and subsequently a prescribed number of prescribed bits. Custom code, function code, and reverse code that inverts the bit of each code for error checking are sequentially arranged, and a code string compatible with the current one is continued. A new code in which a specified number of extension codes, a data string of an arbitrary length specified by this extension code, an extension code for error checking, and an inversion code that inverts the bits of the data string are sequentially deployed. And a code string, the self-identification code is transmitted by using the new code string when transmitted by the first communication means, and the self-identification code is transmitted by using the new code string when receiving by the first communication means. When the second communication means transmits the self recognition code and the other party recognition code, the other party is called by calling the other party. A communication method using a plurality of media, wherein a communication is performed when a call is made from the other party and a valid communication is performed only when the other party identification code is registered in the storage means. 2. The medium used by the first communication means is any one of a radio wave having a frequency in the quasi-millimeter wave band or higher, an infrared ray, and a laser beam including a visible region, and the second communication. The method according to claim 1, wherein the medium used by the means is radio waves. 3. The data format used by the second communication means has an error correction code in place of each of the inversion codes, and the other part has the same format as the data format used by the first communication means. A communication method using a plurality of media according to claim 1. 4. The communication method using a plurality of media according to claim 1, wherein the data string of an arbitrary length designated by the extension code includes the self-identification code.