Interactive television system for implementing electronic polling or providing user-requested services based on identification of users or of remote control apparatuses which are employed by respective users to communicate with the system

• US 5,721,583 A
• Filed: 11/26/1996
• Issued: 02/24/1998
• Est. Priority Date: 11/27/1995
• Status: Expired due to Fees

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Harada, Takenosuke, Tsukidate, Ryota
• Primary Examiner(s): Lee, Michael H.
• Assistant Examiner(s): Flynn, Nathan J.
• Application Number:
  US08/756,773
• Time in Patent Office: 455 Days
• Field of Search: 348/1, 348/2, 348/6, 348/7, 348/10, 348/12, 348/13, 348/734, 455/2, 455/3.1, 455/3.2, 455/4.1, 455/4.2, 455/5.1, 455/6.1, 455/6.2
• US Class Current: 725/24
• CPC Class Codes: H04N 7/17354 in an intermediate station common to a plurality of user terminals

Abstract

An interactive television system which can provide services such as entertainment programs to users or conduct electronic polls of users, formed of a central computer installation, a plurality of terminal apparatuses each bidirectionally communicating with the central computer installation via a CATV network and each providing video/audio inputs to a display apparatus, with each of the terminal apparatuses being linked to one or more remote control apparatuses whereby users can request services or participate in polling, and in which any message data such as a service request which is issued by a remote control apparatus is automatically accompanied by identifier information, read out from a memory of the remote control apparatus, for identifying that remote control apparatus, and may also be accompanied by personal information concerning a registered user of the remote control apparatus. User recognition can be implemented by an arrangement such as a plug-in IC card interface section or fingerprint recognition section, for enabling restriction of each remote control apparatus to use by only a specific registered user, or to enable only a specific registered user to access certain services.

Claims

1. An interactive television system comprising a center apparatus, a plurality of terminal apparatuses, a plurality of display apparatus and a plurality of remote control apparatuses, said terminal apparatuses being respectively configured for bidirectional data communication with said center apparatus via a digital data communication network and each configured for receiving data by a wireless communication link from at least a corresponding one of said remote control apparatuses and for sending, to a corresponding one of said display apparatuses, data supplied thereto from said center apparatus;

wherein

each said remote control apparatus comprises means for input of message data by a user, means for storing a predetermined remote control apparatus identifier, means for reading out and attaching at least said remote control apparatus identifier to said user message data to form a message data set, and means for sending said message data set via said wireless communication link to said terminal apparatus,

each said terminal apparatus comprises means for storing a predetermined terminal apparatus identifier, means for receiving a message data set which is sent from a remote control apparatus, and means for sending said message data set to said center apparatus via said data communication network and means for receiving data sent from said center apparatus via said data communication network and for supplying at least a part of said received data to a corresponding one of said display apparatuses in a form suitable for display thereby,

said center apparatus comprising means for storing data which relate each of said remote control apparatus identifiers to the terminal apparatus identifier of a corresponding one of said terminal apparatuses, means for receiving said message data set sent from a terminal apparatus, means for extracting said remote control apparatus identifier and said user message data from said message data set, means for generating resultant data in response to said user message data, and means for sending said resultant data via said network to the terminal apparatus having a terminal apparatus identifier which corresponds to the remote control apparatus identifier contained in said received message data set.

2. An interactive television system according to claim 1, wherein said wireless communication link which connects each remote control apparatus to a terminal apparatus is a bidirectional data communication link, wherein each said remote control apparatus comprises data display means, wherein said resultant data which are sent by said center apparatus to a terminal apparatus may include user-directed data which are directed to a specific remote control apparatus as designated by a remote control apparatus identifier, and wherein each said terminal apparatus comprises means for supplying said user-directed data to said specific remote control apparatus via said wireless communication link, to be displayed by said data display means of said remote control apparatus.

3. An interactive television system according to claim 2 wherein said center apparatus comprises means for judging each said received message data set in accordance with predetermined criteria, and for selectively generating, based on results of said judgement, said user-directed data, to be sent to a remote control apparatus which corresponds to a remote control apparatus identifier contained in said message data set.

4. An interactive television system according to claim 1, wherein each of said remote control apparatuses further comprises

means for input of user-specifying data by a user,

means for comparing said input user-specifying data with said stored user-specifying data to judge whether said user is a specific registered user, and

means for determining the contents of said message data set in accordance with results of said judgement of the user-specifying data.

5. An interactive television system according to claim 4, wherein said means for inputting said user-specifying data comprises a plug-in integrated circuit card and interface means for electrically connecting said plug-in integrated circuit card to said remote control apparatus, said integrated circuit card having mounted thereon an integrated circuit operable for supplying data or signals which have been predetermined as being specific to an individual user.

6. An interactive television system according to claim 4 wherein said means for inputting said user-specifying data comprises key input means, manually actuatable by a user for inputting a password code which has been predetermined as being specific to an individual user.

7. An interactive television system according to claim 4, wherein said means for inputting said user-specifying data comprises fingerprint scanning means and fingerprint pattern processing means for operating on information obtained from said fingerprint scanning means to generate fingerprint pattern data, said stored user-specifying data comprising fingerprint pattern data which have been predetermined as being specific to an individual user.

8. An interactive television system according to claim 4, wherein said means for inputting said user-specifying data comprises microphone input means for generating an audio signal in response to voice input by a user, and voice pattern processing means for operating on said audio signal to derive voice pattern data, said stored user-specifying data comprising voice pattern data which have been predetermined as being specific to an individual user.

9. An interactive television system according to claim 1, wherein said interactive television system is operable to take a poll of respective users of said remote control apparatuses, wherein said user message data comprises polling response data, wherein each of said remote control apparatuses comprises means for storing personal attribute information relating to a corresponding user, and wherein

said center apparatus comprises means for sending a polling request data set to each of said terminal apparatuses via said network said polling request data set including data specifying at least a requisite part of said set of personal attribute information and data specifying polling eligibility conditions,

each said terminal apparatus comprises means for obtaining, from each of said remote control apparatus which communicate therewith, said requisite part of the personal attribute information, and means for using said obtained part in judging whether respective users of said remote control apparatus satisfy said polling eligibility conditions.

10. An interactive television system according to claim 1, wherein said interactive television system is operable to take a poll of respective users of said remote control apparatuses, wherein said user message data comprises polling response data, wherein each of said remote control apparatuses comprises means for storing a set of predetermined personal attribute information items relating to a corresponding user, and wherein

said center apparatus comprises means for sending a polling request data set to each of said terminal apparatuses via said network, said polling request data set comprising polling request data, a personal attribute information list specifying a list of personal attribute information items, and polling eligibility conditions data for specifying conditions whereby a user is made eligible to participate in said polling,

each said terminal apparatus comprises means for receiving said polling request data set, extracting said polling eligibility conditions data from said polling request data set and temporarily storing said polling eligibility conditions data, supplying said polling request data to be displayed by said corresponding data display apparatus, and sending said personal attribute information list to each of said corresponding remote control apparatuses;

each said remote control apparatus comprises means for receiving said personal attribute information list, means for extracting, from said stored set of personal attribute information items, specific personal attribute information items which are defined in said personal attribute information list, means for receiving said polling response data as data which are input by a user in response to said displayed polling request data, means for reading out said remote control apparatus identifier, attaching said remote control apparatus identifier and said extracted personal attribute information items to said polling response data to form a message data set, and means for sending said message data set to said corresponding terminal apparatus, and

each said terminal apparatus comprises means for reading out said polling eligibility conditions data, extracting said personal attribute information items from said message data set, comparing said extracted personal attribute information items with said polling eligibility conditions data to judge the eligibility of said user to participate in said poll, and means for sending said message data set via said communication network to said center apparatus when said user is thereby judged to be eligible;

said center apparatus further comprising means for extracting said remote control identifier, said personal attribute information items and polling response data from each said message data set which is received thereby, means for storing said remote control identifiers, and means for storing said personal attribute information and polling response data of respective users in a predetermined relational manner, means for analyzing said personal attribute information and polling response data obtained from a plurality of users to thereby obtain polling result data, and means for sending said polling result data via said data communication network to said terminal apparatuses.

11. An interactive television system according to claim 10, wherein said center apparatus further comprises means for comparing each remote control apparatus identifier of a received message data set with respective remote control apparatus identifiers which have been previously received and stored, for thereby detecting reception of multiple responses from any of said remote control apparatuses, and means for inhibiting use of the polling response data an personal attribute information contained in said message data set in deriving said polling result data.

12. An interactive television system according to claim 11, wherein said wireless communication link which connects each remote control apparatus to a terminal apparatus is a bidirectional data communication link, wherein each said remote control apparatus comprises data display means, and wherein said center apparatus comprises means responsive to said detection of multiple responses from a remote control apparatus for generating data of a warning message, attaching said warning message data to the identifier of said remote control apparatus to form a warning message data set and for sending said warning message data set via said data communication network to the terminal apparatus having a terminal apparatus identifier which corresponds to the remote control apparatus identifier of said remote control apparatus, and

wherein each said terminal apparatus comprises means responsive to receiving a warning message data set for extracting the remote control apparatus identifier therefrom and sending said warning message data to the corresponding remote control apparatus, to be displayed by said data display means of said remote control apparatus.

13. An interactive television system according to claim 1, wherein said interactive television system is operable to take a poll of respective users of said remote control apparatuses,

said center apparatus comprises means for sending polling request data to each of said terminal apparatuses via said network,

each said terminal apparatus comprises means for receiving said polling request data and supplying said polling request data to be displayed by said corresponding display apparatus,

each said remote control apparatus is operable by a user to generate polling response data in response to said display of polling request data, and comprises means for reading out said remote control apparatus identifier, attaching said remote control apparatus identifier to said polling response data to form a message data set, and means for sending said message data set to said corresponding terminal apparatus, and

each said terminal apparatus further comprises means for measuring, for each of said corresponding remote control apparatuses, an elapsed time amount which occurs from a commencement of said displaying of said polling request data until a message data set containing said polling response data is received from said remote control apparatus, and means for sending said elapsed time amounts in conjunction with respectively corresponding remote control apparatus identifiers, as resultant data, to said center apparatus via said data communication network,

said center apparatus further comprising means for analyzing said resultant data received from said terminal apparatuses to obtain, as polling result data, data relating said remote control apparatus identifier to successively increasing values of said elapsed time amounts, and means for sending said polling result data to said terminal apparatuses.

14. An interactive television system according to claim 1, wherein said interactive television system is operable to take a poll of respective users of said remote control apparatuses,

said center apparatus comprises means for sending polling request data to each Of said terminal apparatuses via said network,

each said terminal apparatus comprises means for receiving said polling request data, for supplying said polling request data to be displayed by said corresponding display apparatus,

each said remote control apparatus is operable to by a user to generate polling response data in response to said displaying of polling request data, and comprises means for reading out said remote control apparatus identifier, attaching said remote control apparatus identifier to said polling response data to form a message data set, and means for sending said message data set to said corresponding terminal apparatus,

each said terminal apparatus further comprises means for measuring, for each of said corresponding remote control apparatuses, an elapsed time which amount occurs from a commencement of said displaying said polling request data until a message data set containing said polling response data is received by said terminal apparatus from said remote control apparatus, means for registering respective elapsed time amounts obtained for each of said corresponding remote control apparatuses in correspondence with respective remote control apparatus identifier, and means functioning, after a specific time duration has elapsed following said start of displaying said polling request data, to successively read out said elapsed time amounts, attach each said elapsed time amount to the corresponding remote control apparatus identifier, and sending resultant data to said center apparatus via said data communication network,

said center apparatus further comprising means for analyzing said resultant data received from said terminal apparatuses to obtain, as polling result data, data relating said remote control apparatus identifiers to successively increasing values of said elapsed time amounts, and means for sending said polling result data to said terminal apparatuses.

15. An interactive television system according to claim 13 wherein said wireless communication link which connects each remote control apparatus to a terminal apparatus is a bidirectional data communication link, wherein each said remote control apparatus comprises data display means, wherein said center apparatus comprises means for selectively assigning said polling result data to be user-directed data which are directed to specific ones of said remote control apparatus as designated by respective remote control apparatus identifiers, and wherein each said terminal apparatus comprises means for supplying said user-directed data to said specific remote control apparatus via said wireless communication link to respective remote control apparatus corresponding to said remote control apparatus identifiers, to be displayed by said data display means of said remote control apparatus.

16. An interactive television system according to claim 15, wherein each said terminal apparatus sends said user-directed data, with remote control apparatus identifiers attached thereto, to each of the remote control apparatuses which are linked to said terminal apparatus, and wherein each said remote control apparatus comprises means for judging whether user-directed data sent thereto from the corresponding terminal apparatus has attached thereto a remote control identifier which is identical to the identifier of said remote control apparatus, and for displaying said user-directed data by the data display means of said remote control apparatus when said remote control apparatus identifiers are judged to be identical.

17. An interactive television system according to claim 14, wherein said wireless communication link which connects each remote control apparatus to a terminal apparatus is a bidirectional data communication link, wherein each said remote control apparatus comprises data display means, wherein said center apparatus comprises means for selectively assigning said polling result data to be user-directed data which are directed to specific ones of said remote control apparatus as designated by respective remote control apparatus identifiers, and wherein each said terminal apparatus comprises means for supplying said user-directed data to said specific remote control apparatus via said wireless communication link to respective remote control apparatus corresponding to said remote control apparatus identifiers, to be displayed by said data display means of said remote control apparatus.

18. An interactive television system comprising a center apparatus, a plurality of terminal apparatuses, a plurality of display apparatus and a plurality of remote control apparatuses, said center apparatus including means for selectively providing data of a plurality of services, each of said terminal apparatuses being configured for bidirectional data communication with said center apparatus via a digital data communication network, and configured for receiving data by a wireless communication link from at least a corresponding one of said remote control apparatuses and for sending, to a corresponding one of said display apparatus, service data which are supplied thereto from said center apparatus;

wherein each said remote control apparatus comprises

means operable by a user for inputting service request data to request a specific one of said services,

means for storing a predetermined remote control apparatus identifier,

means for storing predetermined user-specifying data which is specific to an individual user,

means for storing a predetermined user identifier which is specific to said individual user,

means for input of user-specifying data by a user,

means for comparing said input user-specifying data with said stored user-specifying data to achieve recognition of said specific individual user,

means functioning when said recognition has been achieved, in response to input of said service request data, for reading out said user identifier and said remote control apparatus identifier and for attaching said user identifier and said remote control apparatus identifier to said service request data to form a message data set, and functioning, when said recognition has not been achieved, to attach said remote control apparatus identifier to said service request data to form a message data set, and

means for sending said message data set via said wireless communication link to said terminal apparatus;

wherein each said terminal apparatus comprises means for receiving a message data set sent from a remote control apparatus, and means for sending said message data set to said center apparatus via said data communication network;

and wherein said center apparatus further comprises

means for storing information which relates each of said remote control apparatus identifiers to the terminal apparatus identifier of the corresponding one of the terminal apparatuses,

means for receiving respective ones of said message data sets from said terminal apparatuses sent via said network,

means for extracting said remote control apparatus identifier and said service request data from each said message data set,

means for extracting said user identifier from each said message data set which contains said user identifier,

means for storing user status data designating at least one of said user identifiers as as that of a registered user,

means for storing service status data designating at least one of said plurality of services as being a restricted service, available only to registered users,

means responsive to receiving a message data set which contains a user identifier for Judging, based on said user status data, said service status data and said user identifier, whether a service specified by the service request data of said message data set is a restricted service which is available to the requesting user corresponding to the user identifier of said message data set, or is a service which is available to all users, and

means functioning when it is judged that said service specified by the service request data of a message data set is available to said user, for providing the corresponding service data and sending said service data via said network to the terminal apparatus having a terminal apparatus identifier which corresponds to the remote control apparatus identifier contained in said received message data set.

19. An interactive television system according to claim 18, wherein said means for inputting said user-specifying data comprises a plug-in integrated circuit card and interface means for electrically connecting said plug-in integrated circuit card to said remote control apparatus, said integrated circuit card having mounted thereon an integrated circuit operable for supplying data or signals which have been predetermined as being specific to an individual user.

20. An interactive television system according to claim 18, wherein said means for inputting said user-specifying data comprises key input means, manually actuatable by a user for inputting a password code which has been predetermined as being specific to an individual user.

21. An interactive television system according to claim 18, wherein said means for inputting said user-specifying data comprises fingerprint scanning means and fingerprint pattern processing means for operating on information obtained from said fingerprint scanning means to generate fingerprint pattern data, said stored user-specifying data comprising fingerprint pattern data which have been predetermined as being specific to an individual user.

22. An interactive television system according to claim 18, wherein said means for inputting said user-specifying data comprises microphone input means for generating an audio signal in response to voice input by a user, and voice pattern processing means for operating on said audio signal to derive voice pattern data, said stored user-specifying data comprising voice pattern data which have been predetermined as being specific to an individual user.

23. An interactive television system according to claim 18, wherein each said remote control apparatus comprises data encryption means for encrypting said user identifier before sending to said terminal apparatus as part of a message data set, and wherein each said terminal apparatus further comprises data decryption means for decrypting an encrypted user identifier.

24. An interactive television system according to claim 18, wherein each said remote control apparatus comprises key input means, actuatable by a user for inputting said service request data.

25. An interactive television system according to claim 18, wherein each said remote control apparatus comprises bar code scanner means, operable to acquire said service request data by scanning a bar code which appears on printed matter.

26. An interactive television system according to claim 25, wherein each said remote control apparatus further comprises

temporary data storage means for storing a plurality of service request data items which are successively acquired by said scanning of respective bar codes,

means operable for designating that acquisition of said plurality of service request data items has been completed, and

means responsive to said designation that said acquisition has been completed for reading out said plurality of service request data items from said temporary data storage means, reading out said remote control apparatus identifier and attaching said identifier to said plurality of service request data items to form a message data set, and

means for sending said message data set via said wireless communication link to said terminal apparatus.

27. An interactive television system according to claim 25, wherein said wireless communication link which connects each remote control apparatus to a terminal apparatus is a bidirectional data communication link, wherein each said remote control apparatus comprises data display means, and wherein each said remote control apparatus further comprises

temporary data storage means for storing a plurality of service request data items which are successively acquired by said scanning of respective bar codes,

means for reading out said plurality of stored service request data items, generating display data for displaying said plurality of stored service request data items in the form of a menu, and supplying said display data to said data display means of the remote control apparatus,

means operable for designating at least one of said plurality of stored service request data items, as displayed in said menu, as a selected service request data item,

means for reading out said selected service request data item from said temporary data storage means, reading out said remote control apparatus identifier and attaching said identifier to said selected service request data item to form a message data set, and

means for sending said message data set via said wireless communication link to said terminal apparatus.

28. An interactive television system comprising a center apparatus, a plurality of terminal apparatuses, a plurality of display apparatus and a plurality of remote control apparatuses, said center apparatus including means for selectively provide data of a plurality of services, each of said terminal apparatuses being configured for bidirectional data communication with said center apparatus via a digital data communication network, and configured for receiving data by a wireless communication link from at least a corresponding one of said remote control apparatuses and for sending, to a corresponding one of said display apparatus, service data which are supplied thereto from said center apparatus;

wherein each said remote control apparatus comprises

means for storing a predetermined remote control apparatus identifier,

means operable by a user for inputting service request data to request a specific one of said services,

means for reading out and attaching said remote control apparatus identifier to said service request data to form a message data set, and

means for sending said message data set via said wireless communication link to said terminal apparatus,

wherein each said terminal apparatus comprises means for storing a predetermined terminal apparatus identifier, means for receiving a message data set sent from a remote control apparatus, means for reading out and attaching said terminal apparatus identifier to said message data set to form a message data set, and means for sending said message data set to said center apparatus via said data communication network,

and wherein said center apparatus further comprises means for storing information which relates each of said remote control apparatus identifiers to the terminal apparatus identifier of the corresponding one of the terminal apparatuses,

means for receiving respective ones of said message data sets from said terminal apparatuses sent via said network,

means for extracting said remote control apparatus identifier and said service request data from each said message data set,

means for storing service status data designating at least one of said plurality of services as being a restricted service, available only to users of registered remote control apparatuses,

means for storing information specifiying identifiers of registered remote control apparatuses,

means for judging, based on said service status data, information specifying registered remote control apparatuses, and the remote control apparatus identifier contained in a received message data set, whether a service specified by the service request data of said message data set is a restricted service which is available to the user of the remote control apparatus having said remote control apparatus identifier, or is a service which is available to all users, and

means functioning when it is judged that said service specified by the service request data of a message data set is available to said user, for providing the corresponding service data and sending said service data via said network to the terminal apparatus having a terminal apparatus identifier corresponding to said remote control apparatus identifier which is contained in said received message data set.

29. An interactive television system comprising a center apparatus, a plurality of terminal apparatuses, a plurality of display apparatus and a plurality of remote control apparatuses, said center apparatus including means for selectively provide data of a plurality of services, each of said terminal apparatuses being configured for bidirectional data communication with said center apparatus via a digital data communication network, and configured for receiving data by a wireless communication link from at least a corresponding one of said remote control apparatuses and for sending, to a corresponding one of said display apparatus, service data which are supplied thereto from said center apparatus;

wherein each said remote control apparatus comprises

means for storing a predetermined remote control apparatus identifier,

means operable by a user for inputting service request data to request a specific one of said services,

means for reading out and attaching said remote control apparatus identifier to said service request data to form a message data set, and

means for sending said message data set via said wireless communication link to said terminal apparatus;

wherein each said terminal apparatus comprises

means for storing a predetermined terminal apparatus identifier,

means for receiving a message data set sent from a remote control apparatus,

means for storing service status data designating at least one of said plurality of services as being a restricted service, available only to users of registered remote control apparatuses,

means for storing information specifiying respective identifiers of registered remote control apparatuses,

means for judging, based on said service status data, information specifying identifiers of registered remote control apparatuses, and the remote control apparatus identifier contained in said received message data set, whether a service specified by the service request data of said message data set is a restricted service which is available to the user of the remote control apparatus having said remote control apparatus identifier, or is a service which is available to all users, and

means functioning when it is judged that said service specified by the service request data of said message data set is available to said user, for sending said message data set to said center apparatus via said data communication network;

and wherein said center apparatus further comprises means for storing information which relates each of said remote control apparatus identifiers to the terminal apparatus identifier of the corresponding one of the terminal apparatuses,

means for receiving respective ones of said message data sets from said terminal apparatuses sent via said network, and

means for extracting said remote control apparatus identifier and said service request data from each said received message data set, providing the corresponding service data, and sending said service data via said network to the terminal apparatus having a terminal apparatus identifier corresponding to said remote control apparatus identifier which is contained in said received message data set.

30. An interactive television system comprising a center apparatus, a plurality of terminal apparatuses, a plurality of display apparatuses and a plurality of remote control apparatuses, said center apparatus including means for selectively provide data of a plurality of services, each of said terminal apparatuses being configured for bidirectional data communication with said center apparatus via a digital data communication network, and configured for receiving data by a wireless communication link from at least a corresponding one of said remote control apparatuses and for sending, to a corresponding one of said display apparatuses, service data which are supplied thereto from said center apparatus;

wherein each said remote control apparatus comprises

means for storing a predetermined remote control apparatus identifier,

means operable by a user for inputting service request data to request a specific one of said services,

means for reading out and attaching said remote control apparatus identifier to said service request data to form a message data set, and

means for sending said message data set via said wireless communication link to said terminal apparatus;

wherein each said terminal apparatus comprises means for receiving a message data set sent from a remote control apparatus, and means for sending said message data set to said center apparatus via said data communication network;

wherein said center apparatus comprises means for storing information which relates each of said remote control apparatus identifiers to the terminal apparatus identifier of the corresponding one of the terminal apparatuses,

means for receiving respective ones of said message data sets from said terminal apparatuses sent via said network,

means for extracting said remote control apparatus identifier and said service request data from each said message data set,

means for storing service status data designating at least one of said plurality of services as being a restricted service, available only to users of registered remote control apparatuses,

means functioning, when said service status data indicates that a service specified in a received message data set is a restricted service, for combining a restriction code within service data corresponding to said specified service and sending resultant combined data via said network to the terminal apparatus corresponding to the terminal apparatus identifier which is contained in said message data set, and functioning, when said service status data indicates that said specified service is not a restricted service, for providing said service data corresponding to the specified service and sending said service data directly via said network to the terminal apparatus having a terminal apparatus identifier corresponding to said remote control apparatus identifier which is contained in said received message data set;

wherein each said terminal apparatus further comprises

means for receiving service data which have been sent by said center apparatus via said network in response to a message data set,

means for detecting that said received service data includes said restriction code,

means for storing remote control apparatus status information specifying at least one remote control apparatus identifier as the identifier of a registered remote control apparatus,

means for operating on said remote control apparatus status information and the remote control apparatus identifier contained in said message data set, for judging whether said message data set has been issued by a registered remote control apparatus, and

means functioning when said received service data includes said restriction code and said message data set is judged to be a registered remote control apparatus, or when said received service data does not include said restriction code, for supplying said service data to be displayed by said corresponding display apparatus, and otherwise for inhibiting displaying of said service data by said display apparatus.