JP2005236504A - Digital broadcast reception system and digital broadcast receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital broadcast reception system and a digital broadcast receiver capable of easily and surely managing a card ID of a B-CAS card located to each digital broadcast receiver in a facility wherein many of the digital broadcast receivers used by many unspecified users are installed. <P>SOLUTION: The digital broadcast reception system is provided with: the plurality of digital broadcast receivers 8, 8, ..., installed in a facility premises used by many unspecified users, each located with a card medium fixedly storing identification information unique to the medium and capable of storing release information of broadcast on which viewing limit is placed, and storing the release information obtained by the reception of digital broadcast to the card media; and a front computer 4 that stores in advance the identification information of the card medium loaded to the plurality of digital broadcast receivers 8, 8, ..., acquires the identification information of the card medium loaded respectively to the digital broadcast receivers 8, 8, ... at that point of time from the digital broadcast receivers 8, 8, ..., and displays the acquired identification information in cross-reference with the stored identification information. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a digital broadcast receiving system and a digital broadcast receiving apparatus that allow an unspecified number of users to view a digital broadcast whose viewing is restricted in an accommodation facility such as a hotel or an inn or a hospital facility.

  Television receivers and tuner devices compatible with satellite digital broadcasting that receive BS digital broadcasting, 110 ° CS digital broadcasting, and terrestrial digital broadcasting have a built-in viewing control system function called CAS (Conditional Access System). By making a contract with a predetermined contractor (BS Conditional Access Systems Co., Ltd.), a dedicated IC card (hereinafter referred to as “B-CAS card”) issued and managed by the contractor When inserted into a predetermined card slot, viewing, use, and copy control of programs such as interactive services based on free broadcasting and data broadcasting can be performed.

  Furthermore, if contract information is stored in the B-CAS card by separately making a contract with a broadcasting company, pay broadcasts including pay-per-view can be viewed.

  For the user registration related to the B-CAS card, a postcard for registration attached to the apparatus together with the B-CAS card at the time of purchase of a product such as a television receiver or a tuner apparatus is sent to the predetermined contractor, Registration is executed by filling in a predetermined item such as a 20-digit ID number (hereinafter referred to as “card ID”) written on the back of the B-CAS card on a website established by .

  For viewing paid programs, the card ID, etc., can be specified on the subscription application form of each broadcaster attached to the device at the time of product purchase, the telephone, or the website opened on the Internet by each broadcaster. Viewing is possible by entering or notifying items and making a contract.

  This point will be explained in more detail. After the broadcaster accepts the contract, if the user waits for the broadcaster's program contracted with the television receiver or tuner device, it will be several tens of minutes at the earliest. A transport stream (TS) transmitted from the provider is received, and the received transport stream is demultiplexed by the demultiplexer with information such as video and individual information EMM (Entitlement Management Message) ) Information, program information, and control information ECM (Entitlement Control Message) information.

  Contracted pay program by decoding the separated EMM information, storing contract information in the B-CAS card, decoding scrambled ECM information, and executing descrambling of information such as video Can be watched.

The technology relating to this B-CAS card is described in detail in the following patent documents. (For example, Patent Document 1)
JP 04-138735 A

  The B-CAS card possessed by the user at home or the like is left to the user's self-management. Will be reissued. In this case, in order to invalidate the old card permanently, the card ID of the new card is updated.

  In each device that receives BS digital broadcasting, 110 ° CS digital broadcasting, and terrestrial digital broadcasting, when the B-CAS card is installed, information such as the card ID is read into the memory on the device side and attached to the device It is possible to display and confirm information such as a card ID read by a key operation on the remote control pad.

  On the other hand, if the B-CAS card is removed from the apparatus, the information read into the memory on the apparatus side is erased all at once, and the card ID cannot be confirmed.

  However, in facilities where an unspecified number of users are expected, such as accommodation facilities such as hotels and inns, or hospital facilities, when installing a digital broadcast receiving device as described above, individual installations for each guest room or hospital bed are required. For each receiving device, the card slot or the like is not exposed to the outside so that the B-CAS card cannot be easily removed from the outer surface of the device. -Actually, it is managed by entering the card ID of the CAS card on a label on the bottom of the apparatus.

  However, if the B-CAS card is removed from the device due to unexpected theft or the digital broadcast receiving device with the B-CAS card attached is lost, the card ID of the B-CAS card that has been installed The contents of the site will be lost, and it is the responsibility of the facility manager to make it easy and reliable.

  The present invention has been made in view of the above circumstances, and the purpose of the present invention is to attach to each device in a facility where a large number of digital broadcast receiving devices are installed and used by an unspecified number of users. Provides a digital broadcast receiving system and a digital broadcast receiving apparatus that can reliably manage the card ID of a B-CAS card that is used and can easily grasp the card ID even if the card itself is lost There is to do.

  The invention according to claim 1 is a card that is installed in a facility premises used by an unspecified large number of users, can store identification information unique to the medium, and can store broadcast release information that is subject to viewing restrictions. A plurality of digital broadcast receivers having setting means for storing the release information obtained by receiving a digital broadcast and storing the release information in the card-like medium; and each of the plurality of digital broadcast receivers Storage means for preliminarily storing the identification information of the card-like medium, identification information acquisition means for obtaining the identification information of the card-like medium mounted at that time from the plurality of digital broadcast receiving apparatuses, and the identification information The identification information of the card-like medium mounted on each digital broadcast receiving device obtained by the acquisition means is displayed in association with the identification information stored by the storage means. Characterized in that a premises management device having shown means.

  According to a second aspect of the present invention, in the first aspect of the present invention, the premises management device is configured to obtain the identification information of the card-like medium attached to each digital broadcast receiving device obtained by the identification information acquisition unit and the information The information processing apparatus further includes a matching unit that matches the identification information stored in the storage unit in association with each other, and the display unit notifies when the two identification information matched by the matching unit does not match. And

  The invention described in claim 3 is a digital broadcast receiving apparatus installed in a facility premises used by an unspecified number of users, which is attached to the apparatus, stores the identification information unique to the medium, and is used for viewing. A card-like medium capable of storing the release information of the restricted broadcast, storage means for storing the identification information stored in the card-like medium regardless of the power-on state of the apparatus, and the storage means And an operation means for outputting the identification information by a predetermined operation.

  According to a fourth aspect of the present invention, in the invention of the third aspect, the storage means stores management identification information in addition to the card-like medium identification information, and the operation means stores the management identification information. By inputting, the identification information of the card-like medium stored in the storage means is output.

  According to the first aspect of the present invention, for example, in a premises management apparatus such as a computer installed at the front of a hotel, the identification information of the card-like medium mounted in each of the plurality of digital broadcast receiving apparatuses as the terminals is stored in advance. Since the identification information of the card-like medium that is mounted at that time is acquired by polling processing and displayed in association with each other, a large number used by an unspecified number of users In the facility where the digital broadcast receiving device is installed, the identification information of the card-like medium installed in each device is managed reliably and collectively even if the card-like medium itself is lost. Can be easily grasped.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, it is possible to more easily recognize the device on the terminal side that has identification information that does not match the identification information stored in advance. it can.

  According to the third aspect of the present invention, since the identification information can be surely output when the card-like medium is lost, a large number of digital broadcast receiving devices used by an unspecified number of users are installed. It is possible to reliably manage the identification information of the card-like medium installed in each device within the facility, and easily grasp the identification information even if the card-like medium itself is lost. .

  According to the invention described in claim 4, in addition to the effect of the invention described in claim 2, the manager side can more easily output the identification information of the card-like medium while maintaining a certain level of confidentiality.

(First embodiment)
A first embodiment when the present invention is applied to a digital broadcast receiving system including a digital broadcast receiving apparatus installed in a hotel facility, for example, will be described below with reference to the drawings.

  FIG. 1 shows the configuration of the entire digital broadcast receiving system in a hotel building. In the figure, an intermediate frequency signal received by the BS / CS broadcast antenna 1 and frequency-converted by a converter (not shown) and a signal received by the terrestrial digital broadcast antenna 2 are arranged on the same frequency axis by the mixer 3. After being mixed, it is sent to the mixer 6.

  The mixer 6 is also connected to a bidirectional communication data line 5 from the front computer 4.

  However, the mixed signal from the mixer 6 is transmitted to the digital broadcast receiver 8 disposed in each guest room GR in the hotel hall through the coaxial transmission line 7 constituting the distribution network of this system.

  The digital broadcast receiver 8 performs a channel selection operation corresponding to a key operation on the remote control pad 10 and reproduces and outputs an image and sound on the monitor device 9.

  Next, the configuration of the front computer 4 will be described with reference to FIG. In the figure, a front computer 4 is centered on a computer main body 11 connected to a two-way communication data line 5, for example, a monitor 12 formed of a liquid crystal display incorporating a speaker, a keyboard 13, a mouse 14 as a pointing device, a printer. A general hardware configuration such as 15 is adopted.

  The computer main body 11 is provided with a memory card slot for inserting a memory card containing a non-illustrated non-volatile memory such as a flash memory. The all-digital broadcast receiving device 8 is stored in this memory card during a polling process to be described later. , 8,... Are used as card IDs of B-CAS cards.

  Next, a detailed circuit configuration of the digital broadcast receiving device 8 in the guest room GR will be described with reference to FIG. In the figure, a signal sent from the coaxial transmission line 7 is demultiplexed by a demultiplexer 21 into an intermediate frequency signal of BS · 110 ° CS broadcast and a reception signal of terrestrial digital broadcast. To a BS · 110 ° CS digital tuner and a terrestrial digital tuner (not shown).

  The digital broadcast receiving unit 22 selects a channel corresponding to the channel selection operation on the remote control pad 10 with the BS · 110 ° CS digital tuner or the terrestrial digital tuner based on a signal from the control unit 27 described later. The transport stream (TS) of the corresponding channel is demodulated and output.

  However, in this digital broadcast receiver 22, the demodulated transport stream is separated into information such as video multiplexed by a demultiplexer, EMM information of individual information, program information, and ECM information of control information.

  The separated EMM information is decoded to acquire contract information, the acquired contract information is stored in a B-CAS card (not shown) inserted into the CAS card slot 25, and the scrambled ECM information is decoded. Thus, descrambling control of information such as video is performed, video data and stereo audio data that are temporally continuous in the digital broadcast receiving unit 22 are generated, and the generated video data is transmitted from the video output terminal 23 to the audio. Data is output from the audio output terminal 24, respectively.

  The video output terminal 23 and the audio output terminal 24 are connected to the video input terminal and the audio input terminal of the monitor device 9 installed in the guest room together with the digital broadcast receiving device 8. Is reproduced and output, so that a user (such as a guest) in the guest room GR can view the digital broadcast.

  The digital broadcast receiving device 8 includes the CAS card slot 25 as described above, and can insert a B-CAS card to view digital broadcast programs and channels set by the hotel management side. However, the CAS card slot 25 is not exposed at all on the outer surface of the digital broadcast receiver 8 and is built in so that the B-CAS card cannot be easily removed.

  The B-CAS card stores the unique card ID in advance, so that the user can be identified.

  Further, a telephone line connection terminal 26 is connected to the digital broadcast receiving device 8. The telephone line connection terminal 26 is connected to a modem (not shown) in the digital broadcast receiving unit 22, and requests information is provided when performing a data broadcasting interactive service based on the control in the digital broadcast receiving unit 22. Etc. can be transmitted via a telephone line (not shown).

  The control unit 27 includes a CPU, a flash memory in which an operation program of the CPU is stored in a nonvolatile manner, a work memory, and the like. The control unit 27 is connected to the digital broadcast reception unit 22, the high frequency modem 28, and the remote control light reception unit 29. Then, the control operation of the entire digital broadcast receiving apparatus 8 is executed.

  A unique address number of the digital broadcast receiving device 8 is stored in the flash memory of the control unit 27, and the front computer 4 identifies the digital broadcast receiving device 8 of another guest room GR based on the address number. It is possible.

  The high frequency modem 28 realizes a bidirectional communication function by both the upstream and downstream data communication by the high frequency FSK modulation and the front computer 4 connected via the coaxial transmission line 7 and the bidirectional communication data line 5. Control information such as viewing restrictions for the digital broadcast receiver 8 and various setting information are received from the front computer 4 by downlink data communication, and charging information and response information for watching a pay program via uplink data communication to the front computer 4 Send.

  The remote control light receiving unit 29 receives and demodulates an infrared modulation signal corresponding to the key operation on the remote control pad 10 and sends the operation content to the control unit 27.

Next, the operation of the above embodiment will be described.
As described above, each of the plurality of digital broadcast receiving apparatuses 8, 8,... Stores the address number corresponding to the guest room GR number in the flash memory in the control unit 27, while the front computer. Also, No. 4 stores address numbers corresponding to the guest room numbers of all rooms as a table in a memory card, and normally communicates with each digital broadcast receiving device 8 by polling processing.

  FIG. 4 shows the contents of polling processing performed by the front computer 4 for the digital broadcast receivers 8, 8,... Installed in each guest room GR, GR,.

  FIG. 5 shows an initial table related to the B-CAS card installed in each digital broadcast receiver 8 stored in the memory card of the front computer 4 before executing this series of polling processing. Four items of “Room Number”, “Receiver Address Number”, “Registered Card ID”, and “Acquired Card ID” are stored for all guest rooms. Among these items, the “acquired card ID” is blank before the polling process and is blank as shown in the figure.

Therefore, at the beginning of the polling process, first, the initial value “0101” is inserted into the address n designating the digital broadcast receiving apparatus 8 (step A01).
Thereafter, a request signal for returning the card ID of the B-CAS card mounted at that time is transmitted to the digital broadcast receiving apparatus 8 according to the address n by polling transmission in a predetermined format, and the request is answered. When the card ID is returned as a response, it is acquired and stored in the item “acquired card ID” in the table (step A02).

  Thereafter, it is determined whether or not the acquisition of the card IDs of the B-CAS cards from all the digital broadcast receivers 8 is completed depending on whether or not the value of the address n at that time is the final value “N”. (Step A03).

  If the value of the address n is not the final value “N” and it is determined that the acquisition of all the card IDs has not been completed, the value of the address n is updated by “+1” (step A04). The process returns to step A02.

  By repeatedly executing the processes of steps A02 to A04 in this way, the B-CAS installed at that time from each of the digital broadcast receivers 8, 8,... Installed in all the guest rooms GR, GR,. The card ID of the card is acquired and stored in the memory card table.

  When the value of the address n is “N” and the acquisition of the card ID is completed, this is determined in step A03, and “registered card ID” and “acquired card ID” are determined for each digital broadcast receiving device 8 in the table. Are collated (step A05), and as a result, it is determined whether or not they all match (step A06).

  Here, the registration card corresponding to the card ID of the B-CAS card installed at that time, obtained from the digital broadcast receivers 8, 8,... Installed in all the guest rooms GR, GR,. If it is determined that it matches the ID, it is assumed that no abnormality has occurred, and a message indicating no abnormality is displayed on the monitor 12 (step A07), and the series of processing of FIG. Returning to A01, similarly, the next polling process is executed.

  FIG. 6 exemplifies the contents of the table stored in the memory card mounted on the computer main body 11 of the front computer 4 when the acquired card ID matches all the registered card IDs.

  In this case, on the monitor 12 of the front computer 4, for example, a text message such as “No card ID abnormality” is displayed together with the time data at the time of the determination.

  Also, it corresponds to the card ID of the B-CAS card installed at that time obtained from the digital broadcast receivers 8, 8,... Installed in all the guest rooms GR, GR,. If it is determined that at least one of the registered card IDs does not match, it is assumed that some abnormality has occurred, and the monitor 12 displays a message with an abnormality to notify the guest room GR where the abnormality has occurred, The contents are also printed out by the printer 15 (step A08).

  FIG. 7 illustrates the contents of a table stored in a memory card mounted on the computer main body 11 of the front computer 4 when the acquired card ID and a part of the registered card ID do not match.

  In this case, it can be seen that the acquired card IDs of the guest room number “202” and the address number “0202” do not match the registered card ID stored in advance as indicated by hatching in the figure.

  Incidentally, the content “0000 0000... 0000” of the acquired card ID in this case is not a B-CAS card mounted in the CAS card slot 25 of the digital broadcast receiving apparatus 8, and the card ID is read out. Illustrates that it was not possible.

  If the B-CAS card is not inserted into the CAS card slot 25 of the digital broadcast receiver 8, but the digital broadcast receiver 8 itself has disappeared from the guest room GR for some reason, the front computer Since it cannot respond to the polling process from 4, the front computer 4 judges this and stores it in the table as another acquisition card ID indicating that.

  When the occurrence of such an abnormality is detected, the computer main body 11 of the front computer 4 uses the information on the “room number”, “registered card ID”, and “acquired card ID” in the table and the date and time of the abnormality detected. A message and data that are created as a set of data and identify the cabin GR in which an abnormality has occurred are displayed on the monitor 12 as shown in FIG.

  At the same time, as shown in FIG. 9, the computer main body 11 prints out data relating to an ID card in which an abnormality has been detected even in the printer 15, and the occurrence of an abnormality in the card ID, the date and time of detection, the guest room number, and the registered card ID , And the acquisition card ID is printed.

  Therefore, the hotel operator who handles the front computer 4 extracts the B-CAS card of the digital broadcast receiver 8 installed in the guest room “202” from the CAS card slot 25 from the displayed and printed contents. I can grasp that.

  In this way, the card ID of the B-CAS card installed in each of the digital broadcast receivers 8, 8,... Installed in each guest room GR, GR,. Store the card IDs of the B-CAS cards that are installed at that time by polling processing, etc., collate them and collate them, and detect those that do not match as an abnormality. Announced.

  Therefore, when the terminal-side device whose card ID does not match the pre-stored registered card ID can be easily recognized on the screen of the monitor 12, the B-CAS card itself is lost. However, the card ID can be easily grasped.

  In the above embodiment, only when an abnormality is detected, the registration card ID and the acquisition card ID are displayed on the monitor 12 and printed out by the printer 15 as shown in FIGS. Regardless of whether or not an abnormality has been detected, as shown in the table of FIG. 6 or FIG. 7, the registered card ID is assigned to each of the digital broadcast receiving devices 8, 8,. The acquired card ID may be displayed in association with each other.

  In the above embodiment, each of the digital broadcast receiving devices 8, 8,... Installed in advance in all the guest rooms GR, GR,. Although it has been described that the card ID of the installed B-CAS card is stored in advance, as a storing operation, the manager of the front computer individually inputs the card ID in the supervisor mode with the keyboard 13. It is also possible to install the digital broadcasting receivers 8, 8,... In the guest rooms GR, GR,... When the power is turned on, or when a new B-CAS card is installed. The card ID of the B-CAS card is automatically uploaded and stored by the polling process of the computer 4 It may be.

(Second Embodiment)
A second embodiment when the present invention is applied to, for example, a digital broadcast receiving apparatus installed in a hotel facility will be described below with reference to the drawings.

  FIG. 10 shows a configuration of a digital broadcast receiving apparatus that receives a broadcast signal via a digital television broadcast system in a hotel hall. In the figure, the intermediate frequency signal received by the BS / CS broadcast antenna 31 and frequency-converted by a converter (not shown) and the signal received by the terrestrial digital broadcast antenna 32 are arranged on the same frequency axis by the mixer 33. After being mixed, the signal is transmitted to the digital broadcast receiving apparatus 35 disposed in each guest room in the hotel hall through the coaxial transmission line 34 constituting the distribution network of this system.

  The digital broadcast receiver 35 performs a channel selection operation corresponding to the operation on the remote control pad 36. The signal sent from the coaxial transmission line 34 is separated from the intermediate frequency signal of the BS / CS broadcast by the duplexer 41. The terrestrial digital broadcast reception signal is demultiplexed and sent to a BS / CS digital tuner and a terrestrial digital tuner (not shown) of the digital broadcast receiver 42.

  The digital broadcast receiving unit 42 selects a channel corresponding to the channel selection operation with the remote control pad 36 based on a signal from the control unit 47 (to be described later) with the BS / CS digital tuner or the terrestrial digital tuner. The transport stream (TS) of the channel to be demodulated is output after being demodulated.

  In the digital broadcast receiving unit 42, however, the demodulated transport stream is separated into information such as video multiplexed by a demultiplexer, EMM information of individual information, program information, and ECM information of control information.

  The separated EMM information is decoded to acquire contract information, the acquired contract information is stored in a B-CAS card (not shown) inserted into the CAS card slot 45, and the scrambled ECM information is decoded. As a result, descrambling control of information such as video is performed, video data and stereo audio data that are temporally continuous in the digital broadcast receiving unit 42 are generated, and the generated video data is transmitted from the video output terminal 43 to the audio. Data is output from the audio output terminal 44, respectively.

  The video output terminal 43 and the audio output terminal 44 are a video input terminal and an audio input of a monitor television or a television receiver (not shown) (hereinafter referred to as “monitor device”) installed in the guest room together with the digital broadcast receiver 35. By connecting to the terminal and reproducing and outputting video and audio on the monitor device, the user (guests, etc.) in the guest room can view the digital broadcast.

  This digital broadcast receiving apparatus 35 is provided with the CAS card slot 45 as described above, and is capable of viewing digital broadcast programs and channels set by the hotel management side by inserting a B-CAS card. However, the CAS card slot 45 is not exposed at all on the outer surface of the digital broadcast receiver 35 and is built in so that the B-CAS card cannot be easily removed.

  The B-CAS card has a unique card ID stored in advance, so that the user can discriminate it, and the card ID is read out and stored in a flash memory in the control unit 47 described later. Shall be.

  Further, a telephone line connection terminal 46 is connected to the digital broadcast receiving apparatus 35. The telephone line connection terminal 46 is connected to a modem (not shown) in the digital broadcast receiving unit 42, and requests information is provided when a data broadcasting interactive service is performed based on the control in the digital broadcast receiving unit 42. Etc. can be transmitted via a telephone line (not shown).

  The control unit 47 includes a CPU, a flash memory in which an operation program of the CPU is stored in a nonvolatile manner, a work memory, and the like. The digital broadcast receiving unit 42, the magnetic card reader / writer 48, and the remote control light receiving unit 49 Connected, the control operation of the entire digital broadcast receiving apparatus 35 is executed.

  The magnetic card reader / writer 48 inserts a prepaid magnetic card in order to allow a user (such as a guest) who uses the guest room of this hotel to view a pay program at all times. Then, after recognizing that the card is a prepaid card from the system code magnetically recorded on the card, the controller 47 reads out the stored frequency data and stores it in the internal work memory. Every time viewing is performed, the frequency corresponding to the fee is subtracted.

  However, the control unit 47 updates the frequency data by writing the final frequency data to the magnetic card when the magnetic card is ejected by operating the card ejection button or the like disposed in the magnetic card reader / writer 48. After setting, the magnetic card is ejected.

  In this magnetic card reader / writer 48, in addition to the prepaid magnetic card used by the user, the hotel management operator can introduce the digital broadcast receiving device 35, change the operation, check the stored data, etc. It is assumed that a confirmation card in which various kinds of confirmation item data are recorded can be inserted, and the system code is registered in advance in the flash memory in the control unit 47.

  The remote control light receiving unit 49 receives and demodulates an infrared modulation signal corresponding to the key operation on the remote control pad 36 and sends the operation content to the control control unit 47.

  Next, the operation of the above embodiment will be described.

  FIG. 11A shows the processing contents corresponding to the attached state of the CAS card, which is executed by the control unit 47 of the digital broadcast receiving apparatus 35 installed in each guest room of the hotel.

  At the beginning of the processing, when the AC power of the digital broadcast receiving device 35 is turned on (step B01), it is determined whether or not a B-CAS card is installed in the CAS card slot 45 (step B01). Step B02).

  Here, when it is determined that the B-CAS card is not installed, it is assumed that the B-CAS card has been removed for some reason and the control unit 47 indicates that the B-CAS card is not installed. After being displayed as a character message on a display screen of a monitor device (not shown) (step B04), the process returns to the process from step B02 and waits for the actual B-CAS card to be installed according to the message. .

  On the other hand, if it is determined in step B02 that the B-CAS card is installed in the CAS card slot 45, the card ID of the B-CAS card is acquired and stored in the memory in the digital broadcast receiving unit 42. It is determined whether or not it has been completed (step B03), and if it is determined that it has been acquired, the process returns to the process from step B02 again, and thereafter the processes of steps B02 and B03 are repeated.

  If it is determined in step B03 that the card ID of the B-CAS card has not yet been stored in the memory in the digital broadcast receiving unit 42, the B-CAS card installed in the CAS card slot 45 is renewed. The card ID is read and acquired (step B05).

  Then, it is determined whether or not the card ID of the installed B-CAS card can be acquired (step B06). If the card ID of the B-CAS card cannot be acquired, it is determined that the card ID of the B-CAS card cannot be acquired. For example, an error message is displayed on the display screen of a monitor device (not shown) as a character message (step B08), and the processing of FIG.

  If it is determined that the card ID of the B-CAS card installed in step B06 can be acquired, the acquired card ID is stored in the flash memory in the control unit 47 (step B07). Thus, the process of FIG. 11A is completed.

  Thus, if a correct B-CAS card is inserted in the CAS card slot 45, the card ID is automatically stored in the flash memory in the control unit 47.

  FIG. 11B shows the processing contents when a magnetic card is inserted into the magnetic card reader / writer 48 of the digital broadcast receiving apparatus 35. Initially, the system starts from the inserted magnetic card. The code and the user ID code are read (step B11), and it is determined whether or not the system code matches the system code of the confirmation card previously stored in the flash memory in the control unit 47 (step B12).

  If the system code of the acquired magnetic card does not match the stored system code of the confirmation card, it is not a confirmation card but a normal prepaid card that has been inserted into the magnetic card reader / writer 48. Yes, the prepaid card is inserted as a guest in the guest room (guests, etc.), and the process proceeds to other operations (step B14) such as normal pay program viewing. Description of detailed operations is omitted.

  On the other hand, if it is determined that the system code of the magnetic card inserted in step B12 matches the same code on the confirmation card, the magnetic card is inserted into the magnetic card reader / writer 48. The person who performs management work for the device 35 and the like and is not a general user, reads the card ID of the B-CAS card stored in the flash memory of the control unit 47 and displays it on the screen of a monitor device (not shown). (Step B13), and this process is completed.

  As described above, even when the B-CAS card installed in the CAS card slot 45 is lost, the card ID stored in the flash memory inside the control unit 47 can be read and grasped. Therefore, the card ID of the B-CAS card attached to each digital broadcast receiving device 35 can be surely used even in a facility such as a hotel where a large number of digital broadcast receiving devices are installed and used by an unspecified number of users. It becomes possible to manage.

  In addition, when it is determined that the B-CAS card has been lost, it is merely a notification card that the B-CAS is not installed, and the magnetic card reader / writer 48 can only be owned by a person who performs management work. Since the card ID of the lost B-CAS card is displayed again when the card is inserted, the administrator can more easily grasp the card ID of the B-CAS card while maintaining a certain level of secrecy. it can.

  In the above embodiment, it has been described that the card ID of the lost B-CAS card is output from the CAS card slot 45 only when a confirmation card is inserted into the magnetic card reader / writer 48. The means for identifying the person who performs the work is not limited to this. For example, the remote control pad for maintenance (not shown), which is different from the remote control pad 36 used by the user in the guest room, loses the B- The card ID of the CAS card may be output, or the magnetic card reader / writer 48, the confirmation card, and the remote control pad 36 used by the user may be operated in combination.

  By doing so, even if the B-CAS card attached to the CAS card slot 45 is lost due to unforeseen circumstances such as theft, it is stored in the flash memory in the control unit 47 of the digital broadcast receiving device 35. The card ID of the B-CAS card can be easily grasped using the confirmation card, the remote control pad for maintenance, or the like.

  In addition, although the said 1st and 2nd embodiment demonstrated the case where it applied to the digital broadcast receiving system installed in the facility building of the hotel which is an accommodation facility, or the digital broadcast receiving apparatus installed in each guest room, respectively. The present invention is not limited to this, and can also be applied as a system or apparatus installed in each hospital bed of an inpatient facility such as a hospital.

  In addition, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

  Further, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in the embodiment, at least one of the problems described in the column of the problem to be solved by the invention can be solved, and described in the column of the effect of the invention. In a case where at least one of the obtained effects can be obtained, a configuration in which this configuration requirement is deleted can be extracted as an invention.

The figure which shows the structure of the whole digital broadcast receiving system which concerns on the 1st Embodiment of this invention. The block diagram which shows the circuit structure of the front computer which concerns on the same embodiment. The block diagram which shows the circuit structure of the digital broadcast receiver which concerns on the same embodiment. The flowchart which shows the content of the polling process regarding card ID of the B-CAS card which concerns on the embodiment. The figure which illustrates the contents of each card ID managed by the front computer side concerning the embodiment. The figure which illustrates the contents of each card ID managed by the front computer side concerning the embodiment. The figure which illustrates the contents of each card ID managed by the front computer side concerning the embodiment. The figure which illustrates the content of the abnormality detection managed by the front computer side concerning the embodiment. The figure which illustrates the display screen of the abnormality detection which concerns on the same embodiment. The block diagram which mainly shows the circuit structure of the digital broadcast receiver which concerns on the 2nd Embodiment of this invention. The flowchart which shows the processing content of the handling regarding card ID of the B-CAS card which concerns on the embodiment.

Explanation of symbols

  1 ... BS / CS broadcast antenna, 2 ... terrestrial digital broadcast antenna, 3 ... mixer, 4 ... front computer, 5 ... bidirectional communication data line, 6 ... mixer, 7 ... coaxial transmission line, 8 ... digital broadcast reception Device: 9 ... Monitor device, 10 ... Remote control pad, 11 ... Computer body, 12 ... Monitor, 13 ... Keyboard, 14 ... Mouse, 15 ... Printer, 21 ... Demultiplexer, 22 ... Digital broadcast receiver, 23 ... Video output Terminals, 24 ... Audio output terminals, 25 ... CAS card slots, 26 ... Phone line connection terminals, 27 ... Control units, 28 ... High frequency modems, 29 ... Remote control light receiving units, 31 ... BS / CS broadcasting antennas, 32 ... terrestrial digital Broadcast antenna, 33 ... mixer, 34 ... coaxial transmission line, 35 ... digital broadcast receiver, 36 ... remote control pad, 41 ... duplexer, 42 ... Tal broadcast receiving unit, 43 ... Video output terminal, 44 ... Audio output terminal, 45 ... CAS card slot, 46 ... Phone line connection terminal, 47 ... Control unit, 48 ... Magnetic card reader / writer, 49 ... Remote control light receiving unit, GR ... guest rooms.

Claims (4)

Digital broadcasting that is installed in a facility premises used by an unspecified number of users, and that stores identification information unique to the medium, and that can store broadcast-restricted information that is subject to viewing restrictions. A plurality of digital broadcast receiving devices having setting means for storing the release information obtained by receiving the information in the card-like medium;
Storage means for storing in advance the identification information of the card-like medium mounted on each of the plurality of digital broadcast receiving devices, and the identification information on the card-like medium mounted on each of the plurality of digital broadcast receiving devices at that time Identification information acquisition means to be acquired, and display means for displaying the identification information of the card-like medium mounted on each digital broadcast receiving device obtained by the identification information acquisition means in association with the identification information stored in the storage means A digital broadcast receiving system, comprising: The above premises management device
Further comprising collating means for collating the identification information of the card-like medium mounted on each digital broadcast receiving device obtained by the identification information acquiring means and the identification information stored in the storage means,
2. The digital broadcast receiving system according to claim 1, wherein the display means notifies when two pieces of identification information associated by the collating means do not match. A digital broadcast receiver installed in a facility used by an unspecified number of users,
A card-like medium that is attached to the apparatus, stores the identification information unique to the medium, and is capable of storing the release information of the broadcast whose viewing is restricted;
Storage means for storing the identification information stored in the card-like medium regardless of the power-on state of the apparatus;
A digital broadcast receiving apparatus comprising: operating means for outputting identification information stored in the storage means by a predetermined operation. The storage means stores management identification information in addition to the card-shaped medium identification information,
4. The digital broadcast receiving apparatus according to claim 3, wherein said operation means outputs identification information of a card-like medium stored in said storage means by inputting management identification information.

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