Abstract:
PROBLEM TO BE SOLVED: To provide an improved technology for video selection and performance which is not relatively constrained by a problem accompanied by a known technology.SOLUTION: In this system having a performance device, the performance device is configured to receive a media stream including preliminarily selected consecutive reproduction functions, and to retrieve a watch point including a watch point trigger and a watch point action in the media stream. The watch point action includes an instruction to restore to a specific performance state in response to occurrence of the watch point trigger, and when the watch point trigger occurs after reproduction of the media stream is started, the watch point action occurs, and the performance device is restored to the specific performance state regardless of the preliminarily selected consecutive reproduction functions, and the specific performance state is made to correspond to a state in which the performance device is put before the reproduction of the media stream of the entry position is started.
Abstract:
PROBLEM TO BE SOLVED: To maintain an original MPEG coding structure for preventing a fingerprint from being altered for the purpose of distribution of specific fingerprinted digital content. SOLUTION: The method of embedding information in digital content representing media streams includes: (1) selecting a set of locations in digital content representing a media stream to embed information; (2) selecting a set of possible alterations to create these locations; and (3) creating a subset of the possible alterations. The set of locations and possible alterations is herein sometimes called a "watermark". The subset of actual alterations is herein sometimes called a "fingerprint". COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method of distributing digital content which is used for a media stream to execute finger printing in a short period of time. SOLUTION: The method of distributing digital content includes the steps of: watermarking the digital content; distributing the digital content 121 using a multi-source system 100; and further partially fingerprinting the digital content at each stage 111 of moving information from a point of origin 120 to a viewer 130. COPYRIGHT: (C)2011,JPO&INPIT