Patent ID: 7861276

Claim:
A video program broadcasting apparatus for sequentially broadcasting a plurality of video programs depending on a time schedule of a video program table, comprising: a matching table storage unit including a matching table of pieces of use information inherent in a plurality of video programs to be broadcasted; and a use information embedding unit acquiring use information of a video program which is being broadcasted at the present with reference to the matching table and invisibly embedding use information of the video program which is being broadcasted at the present and use information of video programs which were broadcasted in the past in a time zone of the video program which is being broadcasted at the present into broadcast image data by steganography, wherein the broadcast image data is picked up with a camera to make said use information acquirable, and the use information embedding unit invisibly embeds, in the time zone of the video program which is being broadcasted at the present after a predetermined time has lapsed from the beginning of the video program which is being broadcasted at the present, use information of a video program which was broadcasted immediately before and use information of the video program which is being broadcasted at the present, and invisibly embeds only the use information of the video program which is being broadcasted at the present in a remaining portion of the time zone of the video program which is being broadcasted at the present.