JP2005210630A - Radio communication system and radio communication unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio communication system and a radio communication unit capable of easily exchanging ID codes between radio communication units without requiring a wired connection, protecting the exchanged ID codes. <P>SOLUTION: An ID code is displayed on a display of one radio communication unit. A user prompts the other radio communication unit to input the above ID code, and then the other radio communication unit transmits the input ID code to the one radio communication unit. With the above system configuration, one ID code can be shared by two radio communication units for recognizing each other. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a wireless communication system that transmits and receives data by wireless communication and a wireless communication device used therefor, and in particular, a function that allows wireless communication devices to exchange information for recognizing each other by a simple method. And a wireless communication system using the same.

  In recent years, in homes and offices, wireless connection between a plurality of computers or computers and peripheral devices such as an access point and a printer, wireless connection between home appliances, AV equipment such as a TV and a DVD playback device A technique has been proposed in which connection cables that tend to be complicated are omitted by wirelessly connecting each other, and devices can be installed with a flexible layout.

  Wireless interfaces mounted on such wireless communication compatible devices include Bluetooth (registered trademark), IEEE 802.11 series (802.11b, 802.11a, 802.11g, etc.), Spectrum Spread, UWB. Those based on standards such as (Ultra Wide Band) are conventionally known.

  When wireless communication devices are used by wireless connection, each wireless communication device must be able to identify the wireless communication device with which it is a communication partner. For this reason, generally, an ID code that can be uniquely identified is assigned to each wireless communication device, and based on this, a wireless communication device that is a data transmission source and a reception source is identified. .

  Usually, when a wireless communication device is manufactured, its own ID code is stored in a ROM or the like in the device, and an ID code of another wireless communication device capable of wireless communication with the device is stored. In this method, the uniqueness of the ID code can be ensured, and there is an advantage that there is no risk of communication other than between specific wireless communication devices, but on the other hand, they are set to be able to communicate with each other at the time of manufacture. Since wireless communication can be performed only between wireless communication devices, there is a problem that the expandability of the wireless communication device network is poor.

  On the other hand, a method has also been proposed in which an ID code arbitrarily set by a user is stored in a memory or the like of a wireless communication device and used for recognition between wireless communication devices. According to this method, since the user can arbitrarily set whether or not to allow communication between wireless communication devices, a highly expandable wireless communication device network can be constructed. For example, in Bluetooth, a PIN code is standardized as an ID code that can be set by a user.

  In this case, in order to set the ID code in the wireless communication device, the user normally inputs an arbitrary number string or character string using input means such as a keyboard or an operation panel provided in the device. However, there is a problem that it is difficult for a user to input an ID code in a small device that does not normally include an input unit as described above, or a device that includes only a limited input unit such as a digital camera or a printer. there were.

  The wireless communication device system, wireless communication device, and authentication information exchange method described in Patent Document 1 propose means for solving such a problem. Patent Document 1 proposes a technique of connecting wireless communication devices using a USB (Universal Serial Bus) cable or the like and exchanging an ID code via the USB communication cable.

JP 2001-177599 A.

  According to the method described in Patent Document 1, each time wireless communication devices are installed or started up, the wireless communication devices are connected using a USB cable or the like, and the ID code is exchanged between the wireless communication devices. Must be made to recognize each other. This repeatedly forces a very complicated operation for the user. In addition, wireless communication devices have the advantage that they can be connected without cables even if the distance between the devices is large or there is a physical barrier such as a wall or floor between the devices. The method described in Patent Document 1 may not be applicable to a wireless communication device installed in an aspect.

  On the other hand, taking advantage of the wireless communication device as described above, it is conceivable that the ID code is exchanged by wireless communication between the wireless communication devices. However, in the wireless communication, transmission / reception data is intercepted. Since it is easy, it is not preferable from the viewpoint of security. As a means for ensuring the security of wireless communication, there is encryption of communication data. However, it is impossible to perform encryption for data transmission / reception performed in order for wireless communication devices to first recognize each other.

  Therefore, in view of such circumstances, the present invention can easily exchange ID codes between wireless communication devices without requiring a wired connection and protecting the exchanged ID codes. An object of the present invention is to provide a wireless communication system and a wireless communication device.

  As a result of diligent research in view of the above problem, the inventor displays an ID code on the display unit of one wireless communication device, prompts the user to input the ID code to the other wireless communication device, The wireless communication device of the system shares a single ID code for recognizing each other between the two wireless communication devices by adopting a system configuration in which the input ID code is transmitted to the one wireless communication device. I thought that it would be possible.

  That is, the present invention is a wireless communication system including a first wireless communication device provided with a notification unit that informs a user of an ID code, and a second wireless communication device provided with an input unit that receives an input of the ID code. The second wireless communication device wirelessly transmits the input ID code to the first wireless communication device, and the first wireless communication device receives the ID code received from the second wireless communication device. And a wireless communication system that recognizes the second wireless communication device as a communication partner when the ID code notified by the notification means matches.

  In the wireless communication system of the present invention, the first wireless communication device notifies the second wireless communication device by wireless transmission that the ID codes match.

  In the wireless communication system of the present invention, when the second wireless communication device is notified that the ID code matches from the first wireless communication device, the second wireless communication device is used as the communication partner. It is characterized by recognition.

  Thereby, also on the second wireless communication device side, the first wireless communication device can be recognized as a correct communication partner. The second wireless communication device side is preferably set to discard the input ID code if it is not notified that the ID codes match within a predetermined time.

  In the wireless communication system of the present invention, the first wireless communication device and the second wireless communication device transmit the data transmitted and received by adding the ID code as information for identifying a communication partner. To do.

  As a result, the wireless communication device that has received the wirelessly transmitted data compares the ID code added to the data with the ID code stored in the device itself, thereby transmitting the data to the device itself. It is possible to determine whether the data has been processed.

  The wireless communication system of the present invention is characterized in that the first wireless communication device and the second wireless communication device encrypt and transmit data to be wirelessly transmitted / received using the ID code.

  The wireless communication device that has received the wirelessly transmitted data attempts to decode the data using the ID code stored in the device itself. If decryption is possible, the data can be received as data transmitted to the device itself.

  In the wireless communication system of the present invention, the first wireless communication device includes an input means for starting an operation of notifying a user of an ID code by the notification means.

  For example, when a button or the like is provided on the surface of the first wireless communication device and the user pushes it down, the ID code can be notified to the user by the notification means.

  In the wireless communication system of the present invention, the notification means of the first wireless communication device is a display means for displaying an ID code on a screen.

  By displaying an ID code consisting of a character string or a numeric string on the screen, the user can visually recognize the ID code.

  In the wireless communication system of the present invention, the notification means of the first wireless communication device is a sound output means for transmitting the ID code by sound.

  The user can easily recognize the ID code even if the ID code consisting of a character string or a numeric string is read out by voice.

  In the wireless communication system of the present invention, the input means of the second wireless communication device is a remote control system for performing key input by a remote control device.

  Normally, a remote control device includes numeric keys, function keys, and the like, and some devices can input characters by operation, which is convenient for inputting an ID code.

  In the wireless communication system of the present invention, the input means of the second wireless communication device is an operation panel having an input button.

  Many electronic devices have an operation panel on the surface of the device, which can be used as an input means.

  In the wireless communication system of the present invention, the first wireless communication device is a television receiver.

  For example, the wireless communication system of the present invention can be applied to a wireless television that separates a tuner device and a receiver and wirelessly transmits a received video signal from the tuner device to the receiver.

  In the wireless communication system of the present invention, the notification means of the first wireless communication device is a means for OSD-displaying an ID code on a screen.

  Since the OSD display function is usually a function built in the television receiver, it is preferably used as a notification means in the wireless communication system of the present invention.

  The present invention also includes an informing means for informing the user of an ID code, an ID code judging means for judging whether the ID code received from the second wireless communication device matches the ID code informed by the informing means, When the ID code determining unit determines that the ID codes match, a wireless communication device including a unit that recognizes the second wireless communication device as a communication partner is provided.

  In the wireless communication device of the present invention, when the ID code determination unit determines that the ID codes match, the wireless communication device notifies the second wireless communication device by wireless transmission that the ID codes match. .

  The wireless communication device according to the present invention is characterized in that the data transmitted and received wirelessly is transmitted with the ID code added as information for identifying a communication partner.

  The wireless communication device of the present invention is characterized in that data to be transmitted and received wirelessly is encrypted using the ID code and transmitted.

  In the wireless communication device of the present invention, the notification means is display means for displaying an ID code on a screen.

  In the wireless communication device of the present invention, the notification means is a voice output means for transmitting the ID code by voice.

  The present invention also includes an informing means for informing the user of an ID code, an ID code judging means for judging whether the ID code received from the second wireless communication device matches the ID code informed by the informing means, A first function unit including means for recognizing the second wireless communication device as a communication partner when the ID code determination unit determines that the ID codes match, and an input unit for receiving input of an ID code; A wireless communication device comprising: a second functional unit including: a means for wirelessly transmitting the input ID code to the second wireless communication device, wherein the first functional unit includes the second functional unit; A wireless communication system that recognizes the second wireless communication device as a communication partner when the ID code received from the wireless communication device matches the ID code notified by the notification means It is intended to provide.

  In the wireless communication device of the present invention, the first functional unit further notifies the second wireless communication device by wireless transmission that the ID codes match.

  In the wireless communication device of the present invention, after the second functional unit wirelessly transmits the input ID code to the second wireless communication device, the second wireless communication device notifies that the ID code matches. If the second wireless communication device is received, the second wireless communication device is recognized as a communication partner.

  The wireless communication device according to the present invention is characterized in that the data transmitted and received wirelessly is transmitted with the ID code added as information for identifying a communication partner.

  The wireless communication device of the present invention is characterized in that data to be transmitted and received wirelessly is encrypted using the ID code and transmitted.

  In the wireless communication device of the present invention, the notification means is display means for displaying an ID code on a screen.

  In the wireless communication device of the present invention, the notification means is a voice output means for transmitting the ID code by voice.

  As described above, according to the wireless communication system and the wireless communication device of the present invention, the exchange of the ID code between the wireless communication devices can be easily performed without requiring a wired connection. In addition, since the ID code is not wirelessly transmitted from the wireless communication device that issues the ID code to another wireless communication device, the ID code is exchanged between the wireless communication devices while ensuring security in wireless communication. Can do.

  In the wireless communication system and the wireless communication device of the present invention, the notification means for notifying the user of the ID code is realized in a display means such as a monitor or LCD originally provided in the device, and the input means for inputting the ID code is provided by the device. Since it can be realized in a remote control system or an operation panel that is originally provided, the present invention can be easily realized without adding a special configuration to a conventional wireless communication device.

  The best mode for carrying out a wireless communication system and a wireless communication device of the present invention will be described below in detail with reference to the accompanying drawings. FIGS. 1-7 is a figure which illustrates embodiment of the radio | wireless communications system and radio | wireless communication apparatus of this invention, In these figures, the part which attached | subjected the same code | symbol represents the same thing, Basic composition and The operation is the same.

[First embodiment]
FIG. 1 is a functional block diagram schematically showing a wireless communication system including a pair of wireless transmitters and wireless receivers as a first embodiment of the wireless communication system and the wireless communication device of the present invention. Specifically, a wireless communication system is assumed in which AV content data is transmitted from a wireless transmitter to a wireless receiver and reproduced by the wireless receiver. For example, the wireless transmitter 10 is a set-top box, a digital tuner, a network. The wireless receiver 20 is a device such as a television receiver that can reproduce AV content data. Although FIG. 1 shows a configuration example in which the display unit 27 is provided outside the wireless receiver 20, the two can be regarded as a television receiver as a unit.

  In FIG. 1, the wireless transmitter 10 of this embodiment includes a memory 11, a communication control unit 12, a main control unit 13, a remote control light receiving unit 15, and a wireless antenna 18.

  The memory 11 includes a ROM composed of a read-only semiconductor memory element and a RAM composed of a rewritable semiconductor memory element. The ROM stores an operation program for the main control unit, fixed data such as control data, and the like. The RAM stores various data used for the operation of the wireless transmitter 10, a control program, user setting information, and the like. As the RAM, a rewritable nonvolatile memory such as an EPROM (Erasable Programmable ROM) or an EEPROM (Electrically Erasable Programmable ROM) is preferably used.

  The main control unit 13 is a control arithmetic processing device including a CPU, an MPU, and the like, and controls the operation of each component of the wireless transmitter 10 and data communication between the components. Specifically, the main control unit 13 uses the RAM of the memory 11 as a working memory in accordance with the operation program stored in the ROM of the memory 11 to perform necessary control, calculation, and data transmission / reception in the wireless transmitter 10. Processing can be executed.

  The communication control unit 12 is a processing unit for transmitting and receiving data to and from the wireless receiver 20 through the wireless antenna 18. Specifically, wireless communication interfaces based on standards such as Bluetooth (registered trademark), IEEE 802.11 series (802.11b, 802.11a, 802.11g, etc.), Spectrum Spread, UWB (Ultra Wide Band), etc. Is implemented as

  The remote control light receiving unit 15 is a processing unit that receives an optical signal transmitted from a transmission unit (consisting of LEDs or the like) of the remote control device 17 and demodulates data. As a communication format, IrDA (Infrared Data Association) or ASK (Amplitude Shift Keying) that transmits data using infrared rays can be used. The signal demodulated in the remote control light receiving unit 15 is output to the main control unit 13.

  In FIG. 1, the wireless receiver 20 of this embodiment includes a memory 21, a communication control unit 22, a main control unit 23, an OSD processing unit 24, a video output terminal 25, a video signal processing unit 26, a wireless antenna 28, and a button 29. I have. A display unit 27 is connected to the wireless receiver 20 via a video output terminal 25.

  The memory 21 includes a ROM composed of a read-only semiconductor memory element and a RAM composed of a rewritable semiconductor memory element. The ROM stores an ID code used for recognizing the wireless transmitter 10 or data for generating an ID code, in addition to fixed data such as an operation program for the main control unit and control data. The RAM stores various data used for the operation of the wireless receiver 20, a control program, user setting information, etc., as well as an ID code for recognizing the wireless transmitter 10 and a recognition program. As the RAM, a rewritable nonvolatile memory such as an EPROM (Erasable Programmable ROM) or an EEPROM (Electrically Erasable Programmable ROM) is preferably used.

  The main control unit 23 is a control arithmetic processing device including a CPU, an MPU, and the like, and controls the operation of each component of the wireless receiver 20 and data communication between the components. Specifically, the main control unit 23 uses the RAM of the memory 21 as a working memory in accordance with the operation program stored in the ROM of the memory 21 to perform necessary control, calculation, and data transmission / reception in the radio receiver 20. Processing can be executed.

  The communication control unit 22 is a processing unit for transmitting and receiving data to and from the wireless transmitter 10 by the wireless antenna 28. Specifically, wireless communication interfaces based on standards such as Bluetooth (registered trademark), IEEE 802.11 series (802.11b, 802.11a, 802.11g, etc.), Spectrum Spread, UWB (Ultra Wide Band), etc. Is implemented as

  The video signal processing unit 26 receives the AV content data received by the communication control unit 22, performs predetermined processing such as decoding and A / D conversion, and sends it to the OSD processing unit 24 as an analog video signal that can be played back by the display unit 27. Output.

  The OSD processing unit 24 superimposes an on-screen display (hereinafter referred to as “OSD”) display signal received from the main control unit 23 on the video signal input from the video signal processing unit 26. The synthesized video signal is output to the display unit 27 through the video output terminal 25.

  The display unit 27 can be composed of a monitor device capable of reproducing an analog video signal output through the video output terminal 25. For example, a cathode ray tube, a liquid crystal display, a plasma display, or the like can be used.

  The button 29 is a button for the user to input to the wireless receiver 20 and can be provided on the surface of the wireless receiver 20 together with an operation panel, for example. When the button 29 is depressed, the main control unit can detect the occurrence of an electrical signal or the like.

  In FIG. 1, only the portion related to the function of wireless communication is shown in the internal configuration of the wireless transmitter 10 and the wireless receiver 20, and the other components are the same as those in the prior art and are not shown. ing.

  Next, an operation in which the wireless transmitter 10 and the wireless receiver 20 of the present embodiment configured as described above recognize each other will be described. FIG. 2 is a flowchart showing the flow of processing in the wireless receiver 20, and FIG. 3 is a flowchart showing the flow of processing in the wireless transmitter 10. Here, the wireless receiver 20 generates an ID code for recognition, and transmits the ID code from the wireless transmitter 10 to the wireless receiver 20 so that both devices recognize each other as communication partner devices. It is supposed to be.

  In FIG. 2, first, when the user depresses the button 29 of the wireless receiver 20, processing is started in the wireless receiver 20 (step S <b> 01). The main control unit 23 of the wireless receiver 20 acquires the ID code from the memory 21 (step S02). The ID code may be acquired as one of one or a plurality of ID codes stored in advance in the memory 21, or may be acquired as an ID code generated randomly according to a certain rule. It is good to do. For example, a numeric string of about 5 to 10 digits can be used for the ID code.

  The main control unit 23 transmits the ID code acquired from the memory 21 to the OSD processing unit 24 (step S03). The OSD processing unit 24 combines the display of the received ID code with the video signal and outputs it. As a result, the ID code is OSD-displayed on the display unit 27 (step S04). The user who sees the ID code displayed in OSD in this way can set the ID code for the wireless transmitter 10.

  In FIG. 3, the user operates the wireless transmitter 10 to activate the setting mode (step S11). In the setting mode, the user inputs the ID code (step S12). The activation of the setting mode and the input of the ID code can be performed by operating the remote control device 17 with keys. The main control unit determines whether or not the input data represents a valid ID code (for example, whether or not it is a numeric string having a predetermined number of digits) (step S13), and invalid data is input. If it is, the user is notified that the input data is invalid (step S14), and the process returns to step S12 and waits for the input of the ID code again. Here, the notification of “invalid input data” can be performed by, for example, displaying a warning on an LCD or the like provided in the wireless transmitter 10, turning on an LED lamp, or generating a warning sound. .

  On the other hand, when a valid ID code is input, the main control unit 13 of the wireless transmitter 10 writes the ID code in the memory 11 (step S15). Further, the main control unit 13 notifies the wireless receiver 20 through the communication control unit 12 that the ID code has been set (step S16). As for the notification method, data including an ID code is transmitted to the wireless receiver 20 according to a predetermined protocol.

  Referring again to FIG. 2, the main control unit 23 of the wireless receiver 20 displays the ID code on the display unit 27 in step S04, and then the ID setting is notified from the wireless transmitter 10 for a predetermined time. (Step S05). When the communication control unit 22 receives the ID code setting notification from the wireless transmitter 10, the main control unit 23 refers to the memory 21 and displays the ID code included in the notification and the OSD on the display unit 27 in step S 04. It is determined whether or not the displayed ID code matches (step S06). If they do not match, the received ID code setting notification is discarded, and the process returns to step S05 to wait for the ID code setting notification again.

  On the other hand, if the two ID codes match, the main control unit 23 stores this ID code in the memory 21 as the ID code for which the communication partner has been recognized (step S07). In this way, the same ID code is stored as an ID code for recognizing each other in the memory 11 of the wireless transmitter 10 and the memory 21 of the wireless receiver 20.

  In steps S05 and S06, it is assumed that the time for which the wireless receiver 20 waits for a valid ID code setting notification from the wireless transmitter 10 is set in advance. For example, if the wireless receiver 20 does not receive a valid ID code setting notification after one minute has elapsed after the OSD display of the ID code on the display unit 27 in step S04, the ID code is displayed. If cleared from the memory 21, security is maintained.

  In addition, the wireless receiver 20 transmits to the wireless transmitter 10 a determination result that the ID code notified from the wireless transmitter 10 in step S06 matches the ID code displayed in the OSD on the display unit 27. If the transmitter 10 stores the ID code inputted for the first time after receiving it in the memory 11 as a valid ID code, it is possible to prevent a recognition error due to radio communication interference or the like.

  The wireless transmitter 10 and the wireless receiver 20 that store the same ID code as described above can perform one-to-one data communication using the ID code. FIG. 4 is a diagram illustrating a packet configuration of data transmitted / received between the wireless transmitter 10 and the wireless receiver 20. As shown in FIG. 4, the data packet transmitted / received between both devices has a configuration in which a header part that defines the type of data included in the packet and the data length is added to the head of the data part.

  In the example shown in FIG. 4A, the ID code is included in the header of the packet. Thereby, the wireless transmitter 10 or the wireless receiver 20 that has received this packet compares the ID code acquired from the header part with the ID code stored in its own memory, and if both match, this If it is determined that the packet is a packet addressed to the own device and the data portion is acquired, and if they do not match, it is determined that the packet is not addressed to the own device and the packet can be discarded.

  In the example shown in FIG. 4B, the data portion of the packet is encrypted using an ID code. Thereby, the wireless transmitter 10 or the wireless receiver 20 that has received this packet attempts to decode the data portion of this packet using the ID code stored in its own memory, and when the decoding is successful, Data can be acquired. If the decryption fails, it is determined that the packet is not addressed to the own device, and this packet may be discarded. In this example, since only devices that have previously recognized each other can acquire data, high security is realized in wireless communication between devices.

  In the present embodiment, the method for performing data communication between the wireless transmitter 10 and the wireless receiver 20 is not limited to the two examples shown in FIGS. The wireless communication method may be adopted.

[Second Embodiment]
FIG. 5 is a functional block diagram schematically showing a wireless communication system including a pair of wireless transmitters and wireless receivers as a second embodiment of the wireless communication system and wireless communication device of the present invention. Specifically, a wireless communication system is assumed in which AV content data is transmitted from a wireless transmitter to a wireless receiver and reproduced by the wireless receiver. For example, the wireless transmitter 10 is a set-top box, a digital tuner, a network. The wireless receiver 20 is a device such as a television receiver that can reproduce AV content data. Note that FIG. 5 shows a configuration example in which the display unit 27 is provided outside the radio receiver 20, but both can be regarded as a television receiver as a unit.

  In FIG. 5, the wireless transmitter 10 of this embodiment includes a memory 11, a communication control unit 12, a main control unit 13, a wireless antenna 18, and a button 19. Among these functional units, the configuration and operation of the memory 11, the communication control unit 12, the main control unit 13, and the wireless antenna 18 are the same as those of the first embodiment shown in FIG. Omitted.

  The wireless transmitter 10 according to the present embodiment has a button 19 instead of having a remote control light receiving unit unlike the wireless transmitter according to the first embodiment. The button 19 can be provided as a part of the operation panel on the surface of the wireless transmitter 10, for example. The button 19 is configured to allow at least a plurality of types of key inputs. For example, it preferably includes numeric keys 0-9. In addition, the main control unit 13 of the wireless transmitter 10 is configured to process the input signal from the button 19 in the same manner as the input signal from the remote control light receiving unit 15 in the first embodiment.

  In FIG. 5, the wireless receiver 20 of this embodiment includes a memory 21, a communication control unit 22, a main control unit 23, an OSD processing unit 24, a video output terminal 25, a video signal processing unit 26, a wireless antenna 28, and a button 29. I have. A display unit 27 is connected to the wireless receiver 20 via a video output terminal 25. Since the configuration and operation of each functional unit are the same as those of the first embodiment shown in FIG. 1, description thereof is omitted here.

  Next, an operation in which the wireless transmitter 10 and the wireless receiver 20 of the present embodiment configured as described above recognize each other will be described. FIG. 6 is a flowchart showing the flow of processing in the wireless transmitter 10. Since the radio receiver 20 operates in the same manner as in the first embodiment, the flowchart shown in FIG. 2 may be referred to. Similarly to the first embodiment, the wireless receiver 20 generates an ID code for recognition, and transmits the ID code from the wireless transmitter 10 to the wireless receiver 20 so that both devices can communicate with each other. It is supposed to be recognized as a device.

  First, the user presses down the button 29 of the wireless receiver 20 to display the ID code on the display unit 27 of the wireless receiver 20 (steps S01 to S04 in FIG. 2). In FIG. 6, the user activates the setting mode with the button 19 of the wireless transmitter 10 (step S21), and inputs the ID code (step S22), thereby setting the ID code for the wireless transmitter 10. be able to. The processes after step S23 in FIG. 6 are the same as those in the first embodiment shown in FIG.

  This embodiment is particularly useful when an AV device having no remote control function, such as an AV selector, is used as a wireless transmitter.

[Third embodiment]
FIG. 7 is a functional block diagram schematically showing a wireless communication system including a pair of wireless transceivers as a third embodiment of the wireless communication system and the wireless communication device of the present invention. The two radio transceivers shown in FIG. 7 are the same. Specifically, any electronic device having a wireless communication function can be assumed.

  In FIG. 7, the wireless transceiver 30 of the present embodiment includes a memory 31, a communication control unit 32, a main control unit 33, an LCD 34, a wireless antenna 38, and an input unit 39. Note that the memory 31, the communication control unit 32, the main control unit 33, and the wireless antenna 38 are configured in the same manner as those in the first and second embodiments.

  The LCD 34 is a liquid crystal display generally used for electronic devices, and can display certain characters and numbers. Normally, display necessary for operation, date / time, and the like are displayed, or a warning for an incorrect operation of the user is displayed. As described later, in this embodiment, an ID is given to the user. It is also used as a means for notifying the code.

  The input unit 39 is a functional unit that accepts user operations and input of ID codes. The remote control device and its light receiving unit as shown in the first embodiment and the wireless transceiver as shown in the second embodiment are used. In addition to buttons and the like on the operation panel provided on the surface, it can be configured by various devices that can input to the wireless transceiver 30 such as a keyboard, a mouse, a touch panel, a voice input device, and a card reader. The user operation portion of the input unit 39 includes, for example, a key for displaying an ID code, a key for setting an ID code, and numeric keys 0 to 9.

  Next, an operation in which the pair of wireless transceivers 30 of the present embodiment configured as described above recognize each other will be described. Since the pair of wireless transceivers 30 have the same function, the user can start the recognition operation from any wireless transceiver 30.

  First, the user operates the input unit 39 of one radio transceiver 30 to display an ID code on the LCD 34. The user who sees the ID code displayed on the LCD 34 operates the input unit 39 of the other wireless transceiver 30 to activate the setting mode, and inputs this ID code. The other wireless transceiver 30 stores the input ID code in the memory 31 and wirelessly transmits the ID code to the one wireless transceiver 30. In this way, the same ID code is stored as an ID code for recognizing each other in each memory 31 of the pair of wireless transceivers 30.

  In addition, the details of the operation of the wireless transceiver 30 recognizing each other are the same as those in the first embodiment and the second embodiment.

[Fourth embodiment]
In the first to third embodiments, the receiver side includes a display unit (including an LCD) for informing the user of the ID code. However, in the wireless communication system and the wireless communication device of the present invention, the user The means for notifying the user of the ID code is not limited to the display unit.

  For example, it is possible to notify the user of the ID code by voice output. In this case, the ID code may be read out using previously stored voice. Further, it is possible to inform the user of the ID code by the light emitting means. For example, the ID code can be expressed by the number of times the LED lamp emits light or the light emission interval. In addition, the ID code can be expressed by any means that can be perceived by a human to inform the user of the ID code.

  As mentioned above, although the specific embodiment was shown and demonstrated about the radio | wireless communications system and radio | wireless communication apparatus of this invention, this invention is not limited to these. A person skilled in the art can make various changes and improvements to the configurations and functions of the invention according to the above-described embodiments or other embodiments without departing from the gist of the present invention.

  The wireless communication system and the wireless communication device of the present invention can be applied to any electronic device having a wireless communication interface, such as a personal computer, a computer peripheral device, a wireless access point, a home appliance, and an AV device.

1 is a functional block diagram schematically illustrating a wireless communication system including a pair of wireless transmitters and wireless receivers as a first embodiment of a wireless communication system and a wireless communication device of the present invention. It is a flowchart which shows the flow of a process in the radio | wireless receiver 20 about the operation | movement which the radio | wireless transmitter and radio | wireless receiver shown in FIG. 1 recognize each other. 3 is a flowchart showing a flow of processing in the wireless transmitter 10 regarding an operation in which the wireless transmitter and the wireless receiver shown in FIG. 1 recognize each other. It is a figure which illustrates the packet structure of the data transmitted / received between the wireless transmitter shown in FIG. 1, and a wireless receiver. It is a functional block diagram which shows roughly the radio | wireless communications system comprised from a pair of radio | wireless transmitter and radio | wireless receiver as 2nd Embodiment of the radio | wireless communications system and radio | wireless communication apparatus of this invention. 6 is a flowchart showing a flow of processing in the wireless transmitter 10 regarding an operation in which the wireless transmitter and the wireless receiver shown in FIG. 5 recognize each other. It is a functional block diagram which shows roughly the radio | wireless communications system comprised from a pair of radio | wireless transmitter / receiver as 3rd Embodiment of the radio | wireless communications system and radio | wireless communication apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Wireless transmitter 11 Memory 12 Communication control part 13 Main control part 15 Remote control light-receiving part 17 Remote control device 18 Wireless antenna 19 Button 20 Wireless receiver 21 Memory 22 Communication control part 23 Main control part 24 OSD process part 25 Video output terminal 26 Image | video Signal processing unit 27 Display unit 28 Wireless antenna 29 Button 30 Wireless transceiver 31 Memory 32 Communication control unit 33 Main control unit 34 LCD
38 Wireless antenna 39 Input section

Claims (25)

A wireless communication system including a first wireless communication device including a notification unit that informs a user of an ID code, and a second wireless communication device including an input unit that receives an input of the ID code,
The second wireless communication device wirelessly transmits the input ID code to the first wireless communication device,
If the ID code received from the second wireless communication device matches the ID code notified by the notification means, the first wireless communication device uses the second wireless communication device as a communication partner. Recognizing wireless communication system. The wireless communication system according to claim 1, wherein
The wireless communication system, wherein the first wireless communication device notifies the second wireless communication device by wireless transmission that the ID codes match. The wireless communication system according to claim 2,
The second wireless communication device recognizes the first wireless communication device as a communication partner when notified from the first wireless communication device that the ID codes match. Communications system. In the radio | wireless communications system of any one of Claim 1 to 3,
The wireless communication system, wherein the first wireless communication device and the second wireless communication device transmit the data transmitted and received by adding the ID code as information for identifying a communication partner. In the radio | wireless communications system of any one of Claim 1 to 3,
The wireless communication system, wherein the first wireless communication device and the second wireless communication device encrypt and transmit data to be wirelessly transmitted / received using the ID code. The wireless communication system according to any one of claims 1 to 5,
The wireless communication system, wherein the first wireless communication device includes an input means for starting an operation of notifying a user of an ID code by the notification means. The wireless communication system according to any one of claims 1 to 6,
The wireless communication system, wherein the notification means of the first wireless communication device is display means for displaying an ID code on a screen. The wireless communication system according to any one of claims 1 to 6,
The wireless communication system, wherein the notification means of the first wireless communication device is an audio output means for transmitting the ID code by voice. The radio communication system according to any one of claims 1 to 8,
The wireless communication system, wherein the input means of the second wireless communication device is a remote control system for performing key input by a remote control device. The radio communication system according to any one of claims 1 to 8,
The wireless communication system, wherein the input means of the second wireless communication device is an operation panel having an input button. In the radio | wireless communications system of any one of Claim 1 to 10,
The wireless communication system, wherein the first wireless communication device is a television receiver. The wireless communication system according to claim 11, wherein
The notifying means of the first wireless communication device is means for OSD-displaying an ID code on a screen. An informing means for informing the user of the ID code;
ID code determination means for determining whether the ID code received from the second wireless communication device matches the ID code notified by the notification means;
Means for recognizing the second wireless communication device as a communication partner when the ID code determination means determines that the ID codes match;
Wireless communication equipment equipped with. The wireless communication device according to claim 13,
A wireless communication device that, when the ID code determining means determines that the ID codes match, notifies the second wireless communication device by wireless transmission that the ID codes match. The wireless communication device according to claim 13 or 14,
A wireless communication device, wherein the ID code is added as information for identifying a communication partner to data to be transmitted / received wirelessly. The wireless communication device according to claim 13 or 14,
A wireless communication device, wherein data to be transmitted / received wirelessly is encrypted using the ID code and transmitted. The wireless communication device according to any one of claims 13 to 16,
The wireless communication device, wherein the notification means is display means for displaying an ID code on a screen. The wireless communication device according to any one of claims 13 to 16,
The wireless communication device, wherein the notification means is a voice output means that conveys an ID code by voice. An informing means for informing the user of the ID code;
ID code determination means for determining whether the ID code received from the second wireless communication device matches the ID code notified by the notification means;
A first function unit including: a unit that recognizes the second wireless communication device as a communication partner when the ID code determining unit determines that the ID codes match;
An input means for receiving an input of an ID code;
Means for wirelessly transmitting an input ID code to a second wireless communication device; and a second functional unit including:
The first functional unit recognizes the second wireless communication device as a communication partner when the ID code received from the second wireless communication device matches the ID code notified by the notification means. Wireless communication equipment. The wireless communication device according to claim 19,
The wireless communication device, wherein the first functional unit further notifies the second wireless communication device by wireless transmission that the ID codes match. The wireless communication device according to claim 20,
When the second functional unit wirelessly transmits the input ID code to the second wireless communication device and then is notified from the second wireless communication device that the ID code matches, the second function unit A wireless communication device, wherein the wireless communication device is recognized as a communication partner. The wireless communication device according to any one of claims 19 to 21,
A wireless communication device, wherein the ID code is added as information for identifying a communication partner to data to be transmitted / received wirelessly. The wireless communication device according to any one of claims 19 to 21,
A wireless communication device, wherein data to be transmitted / received wirelessly is encrypted using the ID code and transmitted. The wireless communication device according to any one of claims 19 to 23,
The wireless communication device, wherein the notification means is display means for displaying an ID code on a screen. The wireless communication device according to any one of claims 19 to 23,
The wireless communication device, wherein the notification means is a voice output means that conveys an ID code by voice.

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