Method, system, and apparatus for acquiring information concerning broadcast information
First Claim
1. A broadcast synchronization type service providing method where a broadcasting station or a broadcast information storing server sends broadcast information including voice and video and performs a method comprising:
- superimposing a data signal on voice at a same rate as a video frame rate of the video by deleting specific frequency components of the voice in response to a low or a high signal of binary data from said data signal; and
sending said broadcast information including said voice that includes said data signal, said data signal including a channel identifier uniquely assigned to a broadcast channel and an image frame identifier uniquely assigned to an image frame in video, said data signal does not include a voice frame identifier;
in a receiving side, a viewer apparatus performs a method comprising,collecting broadcast voice output from a speaker of a broadcast receiving apparatus, that receives said broadcast information, by using a microphone, and converting said broadcast voice into an electrical signal;
extracting said data signal superimposed on said electrical signal continuously one after another by detecting the deleted frequency components of said voice and reproducing said binary data of said data signal;
extracting said channel identifier and said image frame identifier from said data signal;
obtaining related information corresponding to said channel identifier and said image frame identifier via a network;
sending the image frame identifier as a time-series continuous number by said broadcasting station or said broadcast information storing server;
using the image frame identifier by the viewer apparatus as an image frame identifier of an image that is currently reproduced by the broadcast receiving apparatus, when said viewer apparatus continuously extracts said data signal superimposed on said voice from said voice output from said speaker of said broadcast receiving apparatus, if said data signal is correctly extracted from said voice so that said image frame identifier is recognized; and
generating and using an image frame identifier by the viewer apparatus on the basis of a value of an image frame identifier that is most recently recognized, and on the basis of a difference between a time when said most recently recognized image frame identifier is recognized and a current time, if said data signal is not correctly extracted from said voice so that said image frame identifier is not recognized.
1 Assignment
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Accused Products
Abstract
A technology is provided for a viewer of broadcast information or recorded information to easily obtain information related to the broadcast information or recorded information from a server, in which, in a system in which a viewer apparatus and a content providing server for providing content information related to video or voice are connected via a network, the viewer apparatus obtains related information necessary for obtaining the content information; sends the related information to the content providing server so as to request the content providing server to send the content information; and obtains the content information sent from the content providing server.
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Citations
10 Claims
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1. A broadcast synchronization type service providing method where a broadcasting station or a broadcast information storing server sends broadcast information including voice and video and performs a method comprising:
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superimposing a data signal on voice at a same rate as a video frame rate of the video by deleting specific frequency components of the voice in response to a low or a high signal of binary data from said data signal; and sending said broadcast information including said voice that includes said data signal, said data signal including a channel identifier uniquely assigned to a broadcast channel and an image frame identifier uniquely assigned to an image frame in video, said data signal does not include a voice frame identifier; in a receiving side, a viewer apparatus performs a method comprising, collecting broadcast voice output from a speaker of a broadcast receiving apparatus, that receives said broadcast information, by using a microphone, and converting said broadcast voice into an electrical signal; extracting said data signal superimposed on said electrical signal continuously one after another by detecting the deleted frequency components of said voice and reproducing said binary data of said data signal;
extracting said channel identifier and said image frame identifier from said data signal;obtaining related information corresponding to said channel identifier and said image frame identifier via a network; sending the image frame identifier as a time-series continuous number by said broadcasting station or said broadcast information storing server; using the image frame identifier by the viewer apparatus as an image frame identifier of an image that is currently reproduced by the broadcast receiving apparatus, when said viewer apparatus continuously extracts said data signal superimposed on said voice from said voice output from said speaker of said broadcast receiving apparatus, if said data signal is correctly extracted from said voice so that said image frame identifier is recognized; and generating and using an image frame identifier by the viewer apparatus on the basis of a value of an image frame identifier that is most recently recognized, and on the basis of a difference between a time when said most recently recognized image frame identifier is recognized and a current time, if said data signal is not correctly extracted from said voice so that said image frame identifier is not recognized. - View Dependent Claims (2, 3)
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4. A broadcast synchronization type service providing system comprising a broadcasting station or a broadcast information storing server for sending broadcast information including voice and video, and a viewer apparatus in a receiving side, wherein
said broadcasting station or said broadcast information storing server comprising means for superimposing a data signal on voice at a same frame rate as a video frame rate of the video by deleting specific frequency components of the voice in response to a low or a high signal of binary data from said data signal, and sends said data signal, said data signal including a channel identifier uniquely assigned to a broadcast channel and an image frame identifier uniquely assigned to an image frame in video, said data signal does not include a voice frame identifier; -
said viewer apparatus comprising; a microphone for collecting broadcast voice output from a speaker of a broadcast receiving apparatus that receives the broadcast information, and converting said broadcast voice into an electrical signal; data signal extraction means for extracting said data signal superimposed on said electrical signal continuously one after another by detecting the deleted frequency components of said voice and reproducing said binary data of said data signal, and extracting said channel identifier and said image frame identifier from said data signal; and means for obtaining related information corresponding to said channel identifier and said image frame identifier via a network. - View Dependent Claims (5, 6)
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7. A viewer apparatus for receiving voice output from a broadcast receiving apparatus receiving broadcast information including voice and video sent from a broadcasting station or a broadcast information storing server, wherein
a data signal is superimposed on said voice of the broadcast information at a same rate as a video frame rate of the video by deleting specific frequency components of the voice in response to a low or a high signal of binary data from said data signal, said data signal including a channel identifier uniquely assigned to a broadcast channel and an image frame identifier uniquely assigned to an image frame in video, the data signal does not include a voice frame identifier; -
said viewer apparatus comprising; a microphone for collecting broadcast voice output from a speaker of a broadcast receiving apparatus and converting said broadcast voice in to an electrical signal; data signal extraction means for extracting said data signal superimposed on said electrical signal continuously one after another by detecting the deleted frequency components of said voice and reproducing said binary data of said data signal, and extracting said channel identifier and said image frame identifier from said data signal; means for obtaining related information corresponding to said channel identifier and said image frame identifier via a network; when said data signal extraction means of said viewer apparatus continuously extracts said data signal superimposed on said voice from said voice output from said speaker of said broadcast receiving apparatus, if said data signal is correctly extracted from said voice so that said image frame identifier is recognized, said viewer apparatus uses said image frame identifier as an image frame identifier of an image that is currently reproduced by said broadcast receiving apparatus; and if said data signal is not correctly extracted from said voice so that said image frame identifier is not recognized, said viewer apparatus generates and uses an image frame identifier on the basis of a value of an image frame identifier that is most recently recognized, and a difference between a time when said most recently recognized image frame identifier is recognized and a current time. - View Dependent Claims (8)
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9. A computer readable medium storing program code for causing a viewer apparatus, and a broadcasting station or a broadcast information storing server to perform a method, said viewer apparatus receiving voice output from a broadcast receiving apparatus receiving broadcast information including voice and video sent from the broadcasting station or the broadcast information storing server, the viewer apparatus includes a microphone for collecting broadcast voice output from a speaker of the broadcast receiving apparatus and converting said broadcast voice into an electrical signal, said method comprising:
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superimposing a data signal on said voice of the broadcast information by deleting specific frequency components of the voice in response to a low or a high signal of binary data from said data signal, said data signal including a channel identifier uniquely assigned to a broadcast channel and an image frame identifier uniquely assigned to an image frame in the video, the data signal not including a voice frame identifier; extracting said data signal superimposed on said electrical signal, obtained from broadcast voice output from a speaker of a broadcast receiving apparatus, continuously one after another by detecting the deleted frequency components of said voice and reproducing said binary data of said data signal, and extracting said channel identifier and said image frame identifier from said data signal; obtaining related information corresponding to said channel identifier and said image frame identifier, or said voice frame identifier via a network; using the image frame identifier by the viewer apparatus as an image frame identifier of an image that is currently reproduced by the broadcast receiving apparatus, when said viewer apparatus continuously extracts said data signal superimposed on said voice from said voice output from said speaker of said broadcast receiving apparatus by said data signal extraction program code means, if said data signal is correctly extracted from said voice so that said image frame identifier is recognized; and generating and using an image frame identifier by the viewer apparatus on the basis of a value of an image frame identifier that is most recently recognized, and on the basis of a difference between a time when said most recently recognized image frame identifier is recognized and a current time, if said data signal is not correctly extracted from said voice so that said image frame identifier is not recognized. - View Dependent Claims (10)
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Specification