JP2010050510A - Broadcaster apparatus - Google Patents

Abstract

Provided is a broadcaster apparatus that generates an EMM that does not malfunction even if an EMM in which control information of the extended standard is received by a digital broadcast receiver that does not support the extended standard is erroneously received by simultaneous delivery. The purpose is to do.
A broadcast provider apparatus 21 receives a signal from a network access terminal 11 and an identification unit that identifies whether the received signal is an extended standard control signal for a peripheral device 41 or not. When the identification unit identifies that the received signal is an extended standard control signal, a digital broadcast receiver that does not support the extended standard receives a signal from the broadcaster apparatus 21 including the extended standard control signal. When received, the signal generator that inserts the control signal of the extended standard into the area of the signal from the broadcaster apparatus 21 that discards the control signal of the extended standard, and the generated signal from the broadcaster apparatus 21 And a transmission unit for transmission to the digital broadcast receiver.
[Selection] Figure 1

Description

  The present invention relates to a digital broadcast network system for controlling peripheral devices of a digital broadcast receiver using a digital broadcast network, and more particularly to a broadcaster apparatus.

For example, in Japan, the limited reception system for digital broadcasting in a conventional digital broadcasting network system is standardized by the Association of Radio Industries and Businesses (hereinafter referred to as ARIB), and is an EMM (Entiment Management Message). Is used to control energization of the digital broadcast receiver, specific channel reception control, EMM message control, etc., and control peripheral devices of the digital broadcast receiver using EMM (for example, Patent Document 1) ) And emergency notification information is transmitted to the digital broadcast receiver using EMM (for example, Patent Document 2).
JP 2002-112358 A Japanese Patent Laid-Open No. 11-163812

  However, in the conventional method for controlling peripheral devices of a digital broadcast receiver using EMM, control other than the broadcast system (hereinafter referred to as broadcast standard) generally standardized by organizations or associations such as ARIB, When performing control (hereinafter referred to as extended standard control) with a standard or function (hereinafter referred to as extended standard) uniquely extended in each digital broadcasting network system, the control signal of the extended standard is described in the EMM. When a digital broadcast receiver that does not support extended standard control (hereinafter referred to as a digital broadcast receiver that does not support extended standard) erroneously receives an EMM containing an extended standard control signal, it may malfunction. There was a problem (for example, Patent Document 1). In addition, when the EMM is distributed simultaneously to all digital broadcasting receivers under the digital broadcasting network system, such as emergency notification information, the EMM receiving the EMM containing the extended standard control signal is not supported. The digital broadcast receiver has a problem that may cause a malfunction (see, for example, Patent Document 2).

  The present invention solves the above-described conventional problems. When an EMM is used to control an extended standard, a digital broadcast receiver that does not support the extended standard uses an EMM in which a control signal of the extended standard is erroneously written. It is an object of the present invention to provide a broadcaster apparatus that generates an EMM that does not malfunction even when received by simultaneous delivery.

    In order to solve the conventional problems, a broadcast provider apparatus of the present invention includes a network access terminal, a broadcast provider apparatus, a digital broadcast receiver that receives a signal from the broadcast provider apparatus, and the digital broadcast reception A broadcaster apparatus in a digital broadcast network system including a peripheral device controlled by a machine, wherein the digital broadcast receiver includes a first digital broadcast receiver corresponding to an extended standard for the peripheral device, It comprises a second digital broadcast receiver that does not support the extended standard for the peripheral device, and the broadcaster apparatus receives a signal from the network access terminal, and a signal received by the receiver Is an extension standard control signal for the peripheral device, and the signal received by the receiver at the receiver is an extension standard. If the second digital broadcast receiver receives a signal from the broadcaster apparatus including the extended standard control signal, the extended standard control signal is discarded. A signal generation unit that inserts the control signal of the extended standard in a signal area from the broadcaster device, and a transmission that transmits the signal from the broadcaster device generated by the signal generation unit to the digital broadcast receiver And a section.

  With this configuration, even if a digital broadcast receiver that does not support the extended standard receives an EMM in which control information of the extended standard is erroneously received or by simultaneous delivery, the EMM is discarded and no malfunction occurs.

  According to the broadcaster apparatus of the present invention, even if a digital broadcast receiver that does not support the extended standard receives the EMM in which the control signal of the extended standard is erroneously received, the EMM is discarded, so that no malfunction occurs. Broadcasters do not need to worry about EMM mistransmission. In addition, even in the digital broadcasting network system, even if the control signal of the extended standard is distributed all at once, the digital broadcast receiver that does not support the extended standard will not malfunction. There is no need to specify a digital broadcast receiver that supports control (hereinafter referred to as an extended standard compatible digital broadcast receiver), and it is possible to simultaneously distribute extended standard control signals to digital broadcast receivers under the digital broadcast network system. .

  The best mode for carrying out the present invention will be described below with reference to the drawings.

(Embodiment 1)
FIG. 1 shows a digital broadcast network system according to Embodiment 1 of the present invention, in which a subscriber of a digital broadcast network system is remotely operated from a network access terminal and the periphery of a digital broadcast receiver in the subscriber's home of the digital broadcast network system. It is an example of the system configuration which controls apparatus.

  In FIG. 1, a digital broadcast network system 1 includes a network access terminal 11 (for example, a mobile phone 12), a broadcaster apparatus 21, a digital broadcast receiver 31 corresponding to an extended standard, and its peripheral devices 41 (for example, an AV device 42, a home The device controller 43, the light 44 under the home device controller 43, the air conditioner 45, the shutter 46, the entrance key 47, the bath 48), and the digital broadcast receiver 32 that does not support the extended standard. Furthermore, the broadcast provider apparatus 21 includes a reception server 22, an EMM generation apparatus 23, and a digital broadcast transmission apparatus 24. In this embodiment, for the sake of simplicity of explanation, it is assumed that there is one digital broadcast receiver 31 corresponding to the extended standard and one digital broadcast receiver 32 not corresponding to the extended standard. It is not limited.

  Next, the operation of the digital broadcast network system 1 configured as described above will be described.

  In the digital broadcast network system 1, a subscriber who owns an extended standard compatible digital broadcast receiver 31 inputs a user ID and a password unique to the subscriber to the mobile phone 12, and the subscriber house's extended standard compatible digital An operation for controlling the peripheral device 41 of the broadcast receiver 31 (here, as an example, the control of turning on the light 44 under the home controller 43 of the subscriber's house, which is an extended standard control) is performed. Then, the lighting control signal of the light 44 of the subscriber's house, the input user ID and password are transmitted from the mobile phone 12 to the broadcaster apparatus 21 via the Internet 51.

  The lighting control signal, the user ID, and the password of the subscriber house light 44 transmitted from the mobile phone 12 are received by the receiving server 22 of the broadcaster apparatus 21.

  The receiving server 22 receives 1. 1. whether the received signal is from a subscriber who is properly registered in the digital broadcasting network system; 2. whether the received signal is a signal addressed to the subscriber's home or a simultaneous delivery addressed to all subscriber homes under the digital broadcasting network system; 3. whether the received signal is a signal for controlling peripheral devices of the digital broadcast receiver at the subscriber's home; When the received signal is identified as a signal for controlling a peripheral device of the digital broadcast receiver at the subscriber's home, it is identified whether or not the control signal is a broadcast standard or extended standard signal.

  The receiving server 22 performs subscriber authentication to determine whether or not the received user ID and password belong to a subscriber who is registered in the digital broadcasting network system 1, and the received user ID and password are those of the digital broadcasting network system 1. If it is confirmed that the subscriber is a registered subscriber, the subscriber ID-specific CAS card ID associated with the user ID and password stored in the receiving server 22 is read out.

  In the present embodiment, the reception server 22 is a signal received from a registered subscriber of the digital broadcasting network system 1 and is a signal addressed to the subscriber's home. The control signal of the peripheral device 41 of the machine 31 transmits the identification result of the extended standard control signal, the CAS card ID of the subscriber and the lighting control signal of the light 44 of the subscriber home to the EMM generator 23.

  The EMM generation device 23 generates an EMM individual message or an EMM common message based on the identification result received from the reception server 22. In the present embodiment, the EMM individual message is generated based on the identification result with the signal addressed to the subscriber's home.

  FIG. 2 is a section structure diagram of an EMM individual message. The EMM individual message includes an EMM message section header indicating whether the EMM individual message is an EMM, the length of the EMM, an EMM individual message, or an EMM common message, and N (N> 0, N is an integer) ) EMM message body and CRC error detection that verifies the accuracy of the message. Each EMM message body is an EMM message unencrypted header, a message addressed to the subscriber home of the digital broadcasting network system, and the periphery of the subscriber home. It is composed of a message code area in which a control signal defined by a broadcasting standard for controlling a device is written. The EMM message non-encrypted header includes a card ID in which a CAS card ID is written, a protocol number indicating the type of encryption algorithm, and the like. More specifically, the message code area has the structure shown in FIG. 3, and is used to control messages defined in the broadcasting standard for digital broadcasting network system subscriber homes and peripheral devices in the subscriber homes. A value defined in the broadcast standard indicating that the control signal defined in the broadcast standard of EMM is included in the EMM individual message, for example, 0x01, is described in the difference format number, and the message or the control signal includes difference information. It is described in. When a value other than 0x01 is described in the difference format number, the digital broadcast receiver that does not support the extended standard does not acquire the message or control signal in the difference information according to the broadcast standard, and does not acquire the EMM. Discard individual messages.

  Here, based on the identification result received from the receiving server 22, the EMM generation device 23 includes an extended standard control signal for controlling the lighting of the light 44 of the subscriber's house in the EMM individual message. In the difference format number, a value determined in the extended standard other than the above 0x01, for example, 0x02, is described in the difference format number, the lighting control signal of the light 44 of the subscriber's house is described in the difference information, and the message code area is After encrypting with the encryption key unique to the digital broadcast receiver 31 corresponding to the extended standard of the subscriber's home, the EMM individual message is transmitted to the digital broadcast transmission facility 24.

  The digital broadcast transmission facility 24 that has received the EMM individual message from the EMM generation device 23 distributes the EMM individual message to all the digital broadcast receivers under the digital broadcast network system 1 via the digital broadcast network 61.

  The digital broadcast receiver 31 corresponding to the extension standard of the subscriber's home receives the distributed EMM individual message, and the CAS card ID described in the card ID of the EMM individual message is a digital corresponding to the extension standard of the subscriber's home. If it matches the CAS card ID of the broadcast receiver 31, the message code area is decrypted with a decryption key unique to the digital broadcast receiver 31 corresponding to the extended standard of the subscriber's home, and is described in the difference format number of the message code area. Check the value. The digital broadcast receiver 31 corresponding to the extended standard does not discard the EMM individual message even if the value described in the difference format number is a value other than the value 0x01 defined in the broadcast standard, here 0x02, The lighting control signal of the light 44 of the subscriber's house is acquired from the information, and the control signal is transmitted to the home appliance controller 43. The home appliance controller 43 performs control to turn on the light 44 based on the received lighting control signal. In the present embodiment, the light 44 is controlled to be turned on via the home device controller 43. However, the extended standard compatible digital broadcast receiver 31 may directly control the peripheral device 41.

  The digital broadcast receiver 31 corresponding to the extended standard of the subscriber's house notifies the reception server 22 of the result of controlling the light 44 of the subscriber's house via the communication network 62.

  The receiving server 22 sends the control result of the light 44 received from the digital broadcasting receiver 31 corresponding to the extended standard of the subscriber's home to the mobile phone 12 of the subscriber who has given the control instruction via the Internet mail 52. Send.

  Here, when the EMM generation device 23 generates the EMM individual message, the description of the CAS card ID is erroneous, and the CAS card ID of the digital broadcast receiver 32 that does not support the extended standard is described in the card ID of the EMM individual message. When the EMM individual message is distributed to all the digital broadcast receivers under the digital broadcast network system 1 via the digital broadcast network 61, the digital broadcast receiver 32 that does not support the extended standard uses the EMM individual message card. Confirm whether the CAS card ID written in the ID matches the CAS card ID of the digital broadcast receiver 32. If the CAS card ID matches, the EMM individual message is decrypted. Confirm that 0x01 is not written in the difference format number. In accordance with the case, the EMM individual message is discarded without acquiring the lighting control signal of the light 44 of the digital broadcast receiver 31 corresponding to the extended standard described in the difference information, so that the digital broadcast receiver 32 that does not support the extended standard is expanded. Even if the EMM in which the control signal of the standard is written is erroneously received, no malfunction occurs.

(Embodiment 2)
FIG. 4 is a digital broadcasting network system according to Embodiment 2 of the present invention, which notifies an earthquake warning from the Japan Meteorological Agency to an earthquake alarm connected to a digital broadcasting receiver in a subscriber's home of the digital broadcasting network system by simultaneous delivery. It is an example of a system configuration. In addition, about the structure similar to FIG. 1, the same code | symbol is attached | subjected.

  In FIG. 4, the digital broadcast network system 1 includes an earthquake warning transmission facility 13 of the Japan Meteorological Agency, a broadcaster apparatus 21, a digital broadcast receiver 31 that complies with an extended standard, and peripheral devices 41 thereof that are an earthquake alarm 49 and a non-compliant standard. Digital broadcast receiver 32.

  Next, the operation of the digital broadcast network system 1 configured as described above will be described.

  When an earthquake occurs, the digital broadcasting network system 1 controls the earthquake alarm 49 under the digital broadcasting receiver 31 corresponding to the extended standard in the subscriber home of the digital broadcasting network system 1 from the earthquake warning transmission facility 13 of the Japan Meteorological Agency. Is transmitted to the broadcaster apparatus 21 via the dedicated communication network 53. In the present embodiment, it is assumed that the control signal for controlling the earthquake alarm device 49 is an extended function control signal. Further, since the earthquake warning transmission device 13 of the Japan Meteorological Agency and the broadcaster device 21 are connected by a dedicated communication network 53, the user ID and password can be transmitted from the earthquake warning transmission device 13 to the broadcaster device 21. The subscriber authentication and the reading of the CAS card ID by the receiving server 22 described later are not performed.

  The control signal of the earthquake alarm 49 transmitted from the earthquake alarm transmission facility 13 is received by the reception server 22 of the broadcaster apparatus 21.

  The receiving server 22 is: 1. Whether the received signal is a signal addressed to a specific subscriber house, or is a simultaneous distribution addressed to all subscriber houses under the digital broadcasting network system. 2. whether the received signal is a signal for controlling peripheral devices of the digital broadcast receiver at the subscriber's house; When the received signal is identified as a signal for controlling a peripheral device of the digital broadcast receiver at the subscriber's home, it is identified whether the control signal is a signal corresponding to a broadcast standard or an extended function. . In the present embodiment, the reception server 22 is a simultaneous distribution to the subscriber home of the digital broadcast network system 1 and the control signal of the peripheral device 41 of the digital broadcast receiver 31 in the subscriber home. An identification result indicating that it is a control signal of the extended standard and a control signal for controlling the earthquake alarm 49 under the digital broadcast receiver 31 corresponding to the extended standard in the subscriber's house are transmitted to the EMM generating device 23.

  The EMM generation device 23 generates an EMM individual message or an EMM common message based on the identification result received from the reception server 22. In the present embodiment, the EMM common message is generated based on the identification result with the simultaneous delivery addressed to the subscriber house of the digital broadcast network system 1.

  FIG. 5 is a section structure diagram of the EMM common message. The EMM common message verifies that the EMM common message is an EMM, the length of the EMM, the EMM message section header indicating whether the message is an EMM individual message or an EMM common message, the EMM message body, and the accuracy of the message. The EMM message body further includes a fixed part and a variable part. The fixed part format number includes a common message addressed to the subscriber home of the digital broadcasting network system defined in the broadcast standard and a control signal for controlling peripheral devices of the subscriber home in the EMM common message. A value determined by the broadcast standard indicating this, for example, 0x01 is described. The common message and the control information are described in the message body of the variable part. When the format number is written with a value other than 0x01, the digital broadcast receiver that does not support the extended standard does not acquire the message code and the control signal according to the broadcast standard, even if a message or control signal is written in the message code body. Discard common messages.

  Here, the EMM generation device 23 includes an extended standard control signal for controlling the earthquake alarm 49 of the extended standard compatible digital broadcast receiver 31 based on the identification result received from the reception server 22 in the EMM common message. Is a value that is determined by an extended standard other than the above-mentioned 0x01, for example, 0x03, is written in the format number, and the control signal of the earthquake alarm 49 of the digital broadcast receiver 31 that supports the extended standard is a message code The EMM common message is transmitted to the digital broadcast transmission facility 24.

  The digital broadcast transmission facility 24 that has received the EMM common message from the EMM generation device 23 distributes the EMM common message to all the digital broadcast receivers under the digital broadcast network system 1 via the digital broadcast network 61.

  All the digital broadcast receivers under the digital broadcast network system 1 receive the distributed EMM common message and confirm the value described in the format number of the fixed part of the EMM message body.

  The digital broadcast receiver 31 corresponding to the extended standard does not discard the EMM common message even if it is a value other than the value 0x01 defined in the broadcast standard, here 0x03, and controls the earthquake alarm 49 from the message code body. The signal is acquired, and the earthquake alarm 49 is controlled based on the acquired control signal.

  If the format number of the fixed part of the EMM message body indicates a value other than 0x01, the digital broadcast receiver 32 that does not support the extended standard follows the broadcast standard and the extended standard described in the message code body of the variable part. Since the EMM common message is discarded without acquiring the control signal of the earthquake alarm 49 of the compatible digital broadcast receiver 31, the extended standard control is performed in the digital broadcast network system 1 including the digital broadcast receiver that does not support the extended standard. Even if the signals are broadcast simultaneously, digital broadcast receivers that do not support the extended standard will not malfunction.

  The broadcaster apparatus according to the present invention generates an EMM that does not malfunction even if the digital broadcast receiver that does not support the extended standard receives the EMM in which the extended standard control information is written by mistake or by simultaneous delivery. Therefore, there is no need to worry about erroneous transmission of EMM, and there is no need to specify a digital broadcast receiver compatible with the extended standard under the digital broadcast network, and the control signal of the extended standard is sent to the digital broadcast receiver under the digital broadcast network. The digital broadcast network system is useful for controlling peripheral devices of a digital broadcast receiver using a digital broadcast network.

Configuration diagram of a digital broadcast network system in Embodiment 1 of the present invention Section structure diagram of EMM individual message in Embodiment 1 of the present invention Structure diagram of message code area of EMM individual message in embodiment 1 of the present invention Configuration diagram of a digital broadcast network system in Embodiment 2 of the present invention Section structure diagram of EMM common message

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Digital broadcast network system 11 Network access terminal 12 Mobile phone 13 Earthquake warning transmission equipment 21 Broadcasting company apparatus 22 Receiving server 23 EMM generation apparatus 24 Digital broadcast transmission equipment 31 Digital broadcast receiver corresponding to the extended standard 32 Digital not compatible with the extended standard Broadcast receiver 41 Peripheral device 42 AV device 43 Home device controller 44 Light 45 Air conditioner 46 Shutter 47 Entrance key 48 Bath 49 Earthquake alarm 51 Internet 52 Internet mail 53 Dedicated communication network 61 Digital broadcast network 62 Communication network

Claims (4)

A network access terminal;
A broadcaster device;
A digital broadcast receiver for receiving a signal from the broadcaster apparatus;
Peripheral devices controlled by the digital broadcast receiver;
A broadcaster apparatus in a digital broadcast network system including:
The digital broadcast receiver includes a first digital broadcast receiver corresponding to the extended standard for the peripheral device and a second digital broadcast receiver not compatible with the extended standard for the peripheral device,
The broadcaster device is:
A receiver for receiving a signal from the network access terminal;
An identification unit for identifying whether the signal received by the reception unit is a control signal of an extended standard for the peripheral device;
When the identification unit identifies that the signal received by the reception unit is an extended standard control signal, the second digital broadcast receiver receives a signal from the broadcast provider apparatus including the extended standard control signal. A signal generation unit that, when received, inserts the control signal of the extended standard into an area of the signal from the broadcaster device that discards the control signal of the extended standard;
A sending unit for sending a signal from the broadcast provider device generated by the signal generating unit to the digital broadcast receiver;
A broadcaster apparatus characterized by comprising: The identification unit further includes:
Identifying whether the control signal of the extended standard is for a digital broadcast receiver at a specific subscriber's home in the digital broadcast network system or broadcast to a subscriber home of the digital broadcast network system. The broadcaster apparatus according to claim 1. When the identification unit identifies that the control signal of the extended standard is for a digital broadcast receiver at a specific subscriber house of the digital broadcast network system,
The signal generation unit inserts information indicating that the control signal of the extended standard is inserted into the difference format number of the message code area in the EMM individual message, and inserts the control signal of the extended standard into the difference information. The broadcaster apparatus according to claim 2. When the identification unit identifies the control signal of the extended standard as simultaneous delivery to subscriber homes of the digital broadcast network system,
The signal generator inserts information indicating that the extended standard control signal is inserted into the format number in the EMM common message, and inserts the extended standard control signal into the message code body. The broadcaster apparatus according to claim 2.

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