Digital broadcast receiving device

Abstract

A receiving unit 101 repeatedly receives a transport stream, and a specifying unit 102 specifies a purchase state. A restoring unit 103 generates a first audio-digital (AV) signal and interactive data, and an AV reproducing unit 105 generates a second AV signal. A combining unit 106 generates a data-AV combined signal by combining the generated second AV signal and a data signal generated from the interactive data. A data presentation restricting unit 115 outputs the interactive data and a purchase state signal. A control unit 107 receives an operation signal from an inputting unit 110 and outputs it to a data operation restricting unit 116. A data analyzing unit 104 analyzes a presentation element contained in the interactive data and generates video data, which is the data signal. A data judging unit 117 judges whether a currently-presented presentation element is included in the same group as a presentation element that is a link destination of the presented presentation element. When the purchase state is a viewing permitted state, the data operation restricting unit 116 outputs the operation signal. When the purchase state is a preview state or viewing prohibited state and when the above two presentation elements are included in the same group, the operation restricting unit 116 also outputs the operation signal.

1 .- 16 . (canceled)  
     
     
         17 . A digital broadcast receiving device that receives a broadcast wave including interactive data to achieve pseudo-interactive communications, the interactive data being repeatedly broadcast, the digital broadcast receiving device comprising: 
 a receiving unit for receiving the broadcast wave;    a judging unit for judging a state that is established during the reception of the broadcast wave based on first information, the state being one of a preview state, a prohibited state, and a permitted state,    wherein the first information shows conditions for using the received broadcast wave under a subscription contract,    wherein in the preview state, the received broadcast wave may be permitted to be used regardless of the subscription contract being made, and wherein in the prohibited state, the broadcast wave is prohibited from being used because the subscription contract is not made; and    a restricting unit for restricting use of the interactive data when the preview state is judged as established, regardless of a subscription contract being made, or the prohibited state being judged as established,    wherein the interactive data contains a plurality of sets of presentation data and a plurality of pieces of link information,    each set of the presentation data is associated with a piece of the link information, and    each piece of the link information indicates a link to another set of the presentation data that is different from the set of the presentation data associated with the piece of the link information,    wherein one of the plurality of sets of presentation data is currently displayed,    wherein the restricting unit further includes    a user input receiving subunit for receiving a user operation relating to the displayed set of presentation data;    a link subunit for (a) specifying, based on the received user operation, a set of presentation data that is a link destination of a link associated by the link information with the displayed set of presentation data if either the preview state or the prohibited state is judged as being established, (b) judging whether the specified set of presentation data and the displayed set of presentation data are included in a same group, (c) obtaining the specified set of presentation data on judging that the specified set of presentation data the displayed set of presentation data are included in the same group, and (d) restricting use of interactive data relating to the received user operation on judging that the specified set of presentation data and the displayed set of presentation data are not included in the same group; and    a presenting subunit for presenting the obtained set of presentation data.    
     
     
         18 . The digital broadcast receiving device of  claim 17 , 
 wherein the broadcast wave includes a plurality of components, and one component out of the plurality of components includes sets of presentation data, and another component out of the plurality of components includes other sets of presentation data that are different from the sets of presentation data included in the one component, and    wherein the link unit judges that the specified set of presentation data and the displayed set of presentation data are included in the same group if the specified set of presentation data and the displayed set of presentation data are included in a same component.    
     
     
         19 . The digital broadcast receiving device of  claim 17 , 
 wherein the broadcast wave includes a plurality of components, and at least two components out of the plurality of components each include a plurality of sets of reception data, each set of reception data containing a plurality of sets of presentation data, and    wherein the link unit judges that the specified set of presentation data and the displayed set of presentation data are included in the same group if the specified set of presentation data and the displayed set of presentation data are included in a same set of reception data.    
     
     
         20 . The digital broadcast receiving device of  claim 17 , 
 wherein the broadcast wave includes a plurality of components, and one component out of the plurality of components includes sets of reception data, and another component out of the plurality of components includes other sets of reception data that are different from the sets of reception data included in the one component, and each set of reception data containing a plurality of sets of presentation data    wherein the link unit judges that the specified set of presentation data and the displayed set of presentation data are included in the same group if the specified set of presentation data is same as the displayed set of presentation data.    
     
     
         21 . The digital broadcast receiving device of  claim 17 , 
 wherein the interactive data contains (a) a plurality of sets of presentation data, (b) a plurality of pieces of link information, and (c) a script,    each set of the presentation data is associated with a piece of the link information,    each piece of the link information indicates a link to another set of presentation data that is different from the set of presentation data associated with the piece of link information, and    the script contains a procedure to restrict use of the interactive data, wherein the restricting unit restricts use of the interactive data by analyzing and executing the script.    
     
     
         22 . The digital broadcast receiving device of  claim 21 , 
 wherein the script also contains a first description that describes a prohibition of a link operation designated by a user, the prohibition being made if either the preview state or the prohibited state is judged as being established, and a second description that describes a permission to perform the designated link operation if the permitted state is judged as being established,    wherein one of the plurality of sets of presentation data is currently displayed,    wherein the restricting unit further includes    a user operation receiving subunit for receiving a user operation that designates the link operation;    a script executing subunit for (a) analyzing the script, (b) restricting the designated link operation on recognizing the first description in the script if either the preview state or the prohibited state is judged as being established, and (c) obtaining a set of presentation data which is a link destination of the designated link operation on recognizing the second description if the permitted state is judged as being established; and    a presenting subunit for presenting the obtained set of presentation data.    
     
     
         23 . The digital broadcast receiving device of  claim 22 , 
 wherein the second description also describes a presentation of a message relating to the prohibition of the link operation and    wherein on recognizing the message in the script, the script executing unit presents the message.    
     
     
         24 . The digital broadcast receiving device of  claim 17 , 
 wherein the interactive data contains (a) a plurality of sets of presentation data, (b) a plurality of pieces of link information, and (c) a viewing enabled signal, each set of the presentation data is associated with a piece of the link information,    each piece of the link information indicates a link to another set of the presentation data that is different from the set of the presentation data associated with the piece of the link information, and    the viewing enabled signal indicates either a viewing permission or a preview permission,    wherein one of the plurality of sets of presentation data is currently displayed,    wherein the restricting unit further includes    a user operation receiving subunit for receiving a user operation that designates a link operation;    a link subunit for obtaining a set of presentation data which is a link destination of the designated link operation if either a first condition or a second condition is fulfilled, and for restricting use of interactive data relating to the received user operation if neither the first condition nor the second condition is fulfilled,    wherein in the first condition, the viewing enabled signal indicates the preview permission, and the preview state is judged as being established, and    wherein in the second condition, the viewing enabled signal indicates the viewing permission, and the permitted state is judged as being established; and    a presenting subunit for presenting the obtained set of presentation data.    
     
     
         25 . The digital broadcast receiving device of  claim 17 , 
 wherein the interactive data contains a plurality of sets of presentation data, and a plurality of pieces of link information,    each set of the presentation data is associated with a piece of the link information, and    each piece of the link information indicates a link to another set of the presentation data that is different from the set of the presentation data associated with the piece of the link information,    wherein one of the plurality of sets of presentation data is currently displayed,    wherein the restricting unit further includes    a user operation receiving subunit for receiving a user operation;    a counting subunit for counting a number of user operations that have been received;    a link subunit for restricting use of interactive data relating to the received user operation when the counted number reaches a predetermined number and either the preview state or the prohibited state is judged as being established.    
     
     
         26 . The digital broadcast receiving device of  claim 17 , 
 wherein the interactive data contains a plurality of sets of presentation data and a plurality of pieces of link information,    each set of the presentation data is associated with a piece of the link information, and    each piece of the link information indicates a link to another set of the presentation data that is different from the set of the presentation data associated with the piece of the link information,    wherein one of the plurality of sets of presentation data is currently displayed,    wherein the restricting unit further includes    a user operation receiving subunit for receiving a user operation that designates a link operation;    a link subunit for restricting use of interactive data relating to the received user operation if either the preview state or the prohibited state is judged as being established, and for obtaining a set of presentation data which is a link destination of the designated link operation if the permitted state is judged as being established; and    a presenting subunit for presenting the obtained set of presentation data.    
     
     
         27 . The digital broadcast receiving device of  claim 26 , wherein the link subunit also places a restriction on obtainment of the set of presentation data that is the link destination if either the preview state or the prohibited state is judges as being established.  
     
     
         28 . A digital broadcast system that includes a digital broadcast sending device that broadcasts a wave containing interactive data and a digital broadcast receiving device that receives the broadcast wave including the interactive data to achieve pseudo-interactive communications, 
 the interactive data being repeatedly broadcast, the digital broadcast sending device comprising:    an adding unit for adding a viewing enabled signal that indicates either a viewing permission or a preview permission to directory information that describes constructions of presentation elements and reception elements included in the interactive data; and    a broadcasting unit for broadcasting the directory information to which the viewing enabled signal has been added, and    the digital broadcast receiving device comprising: a receiving unit for receiving the broadcast wave;    a judging unit for judging a state that is established during the reception of the broadcast wave based on first information, the state being one of a preview state, a prohibited state, and a permitted state,    wherein the first information shows conditions for using the received broadcast wave under a subscription contract,    wherein in the preview state, the received broadcast wave may be permitted to be used regardless of the subscription contract being made, and    wherein in the prohibited state, the broadcast wave is prohibited from being used because the subscription contract is not made; and    a restricting unit for restricting use of the interactive data when the preview state is judged as established, regardless of a subscription contract being made, or the prohibited state being judged as established,    wherein the interactive data contains a plurality of sets of presentation data and a plurality of pieces of link information,    each set of the presentation data is associated with a piece of the link information, and    each piece of the link information indicates a link to another set of the presentation data that is different from the set of the presentation data associated with the piece of the link information,    wherein one of the plurality of sets of presentation data is currently displayed,    wherein the restricting unit further includes    a user input receiving subunit for receiving a user operation relating to the displayed set of presentation data;    a link subunit for (a) specifying, based on the received user operation, a set of presentation data that is a link destination of a link associated by the link information with the displayed set of presentation data if either the preview state or the prohibited state is judged as being established, (b) judging whether the specified set of presentation data and the displayed set of presentation data are included in a same group, (c) obtaining the specified set of presentation data on judging that the specified set of presentation data the displayed set of presentation data are included in the same group, and (d) restricting use of interactive data relating to the received user operation on judging that the specified set of presentation data and the displayed set of presentation data are not included in the same group; and    a presenting subunit for presenting the obtained set of presentation data.    
     
     
         29 . A receiving method used by a digital broadcast receiving device, which receives a broadcast wave including interactive data to achieve pseudo-interactive communications, the interactive data being repeatedly broadcast, the receiving method comprising: 
 a receiving step of receiving the broadcast wave;    a judging step of judging a state that is established during the reception of the broadcast wave based on first information, the state being one of a preview state, a prohibited state, and a permitted state,    wherein the first information shows conditions for using the received broadcast wave under a subscription contract,    wherein in the preview state, the received broadcast wave may be permitted to be used regardless of the subscription contract being made, and    wherein in the prohibited state, the broadcast wave is prohibited from being used because the subscription contract is not made; and    restricting use of the interactive data when the preview state is judged as established, regardless of a subscription contract being made, or the prohibited state being judged as established,    wherein the interactive data contains a plurality of sets of presentation data and a plurality of pieces of link information,    each set of the presentation data is associated with a piece of the link information, and    each piece of the link information indicates a link to another set of the presentation data that is different from the set of the presentation data associated with the piece of the link information,    wherein one of the plurality of sets of presentation data is currently displayed,    wherein the restricting step further includes    a user input receiving substep of receiving a user operation relating to the displayed set of presentation data;    a link substep of (a) specifying, based on the received user operation, a set of presentation data that is a link destination of a link associated by the link information with the displayed set of presentation data if either the preview state or the prohibited state is judged as being established, (b) judging whether the specified set of presentation data and the displayed set of presentation data are included in a same group, (c) obtaining the specified set of presentation data on judging that the specified set of presentation data the displayed set of presentation data are included in the same group, and (d) restricting use of interactive data relating to the received user operation on judging that the specified set of presentation data and the displayed set of presentation data are not included in the same group; and    a presenting substep of presenting the obtained set of presentation data.    
     
     
         30 . A computer-readable recording medium storing a program used by a digital broadcast receiving device, which receives a broadcast wave including interactive data to achieve pseudo-interactive communications, the interactive data being repeatedly broadcast, the program comprising: 
 a receiving step of receiving the broadcast wave;    a judging step of judging a state that is established during the reception of the broadcast wave based on first information, the state being one of a preview state, a prohibited state, and a permitted state,    wherein the first information shows conditions for using the received broadcast wave under a subscription contract,    wherein in the preview state, the received broadcast wave may be permitted to be used regardless of the subscription contract being made, and    wherein in the prohibited state, the broadcast wave is prohibited from being used because the subscription contract is not made; and    a restricting step of restricting use of the interactive data when the preview state is judged as established, regardless of a subscription contract being made, or the prohibited state being judged as established,    wherein the interactive data contains a plurality of sets of presentation data and a plurality of pieces of link information,    each set of the presentation data is associated with a piece of the link information, and    each piece of the link information indicates a link to another set of the presentation data that is different from the set of the presentation data associated with the piece of the link information,    wherein one of the plurality of sets of presentation data is currently displayed,    wherein the restricting step further includes    a user input receiving substep of receiving a user operation relating to the displayed set of presentation data;    a link substep of (a) specifying, based on the received user operation, a set of presentation data that is a link destination of a link associated by the link information with the displayed set of presentation data if either the preview state or the prohibited state is judged as being established, (b) judging whether the specified set of presentation data and the displayed set of presentation data are included in a same group, (c) obtaining the specified set of presentation data on judging that the specified set of presentation data the displayed set of presentation data are included in the same group, and (d) restricting use of interactive data relating to the received user operation on judging that the specified set of presentation data and the displayed set of presentation data are not included in the same group; and    a presenting substep of presenting the obtained set of presentation data.    
     
     
         31 . A digital broadcast sending device that broadcasts a wave containing interactive data, the interactive data being repeatedly broadcast, the digital broadcast sending device comprising: 
 an adding unit for adding a viewing enabled signal that indicates either a viewing permission or a preview permission to directory information that describes constructions of presentation elements and reception elements included in the interactive data; and    a broadcasting unit for broadcasting the directory information to which the viewing enabled signal has been added.    
     
     
         32 . A digital broadcast sending method used by a digital broadcast sending device that broadcasts a wave containing interactive data, the interactive data being repeatedly broadcast, the digital broadcast sending method comprising: 
 an adding step of adding a viewing enabled signal that indicates either a viewing permission or a preview permission to directory information that describes constructions of presentation elements and reception elements included in the interactive data; and    a broadcasting step of broadcasting the directory information to which the viewing enabled signal has been added.    
     
     
         33 . A computer-readable recording medium storing a program used by a digital broadcast sending device, which broadcasts a wave containing interactive data, the interactive data being repeatedly broadcast, the program comprising: 
 an adding step of adding a viewing enabled signal that indicates either a viewing permission or a preview permission to directory information that describes constructions of presentation elements and reception elements included in the interactive data; and    a broadcasting step of broadcasting the directory information to which the viewing enabled signal has been added