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US 7,127,516 B2Granted
Verification of image data
AssigneeCanon Kabushiki Kaisha
InventorsHiroshi Inoue, Toshiyuki Nakagawa
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AssigneeCanon Kabushiki Kaisha
InventorsHiroshi Inoue, Toshiyuki Nakagawa
Estimating the term…
Image data, such as image data coded in MPEG4 format, is verified by a client receiving an information data stream that is generated by multiplexing a plurality of coded object data and associated intellectual property management data, from a contents distribution server, wherein the intellectual property management data includes source information representing a copyright holder of the object data. Verification request data is transmitted, based on the source information included in the received intellectual property management data, to the copyright holder, via a different communication channel from that used for receiving the information data stream. The client receives, from the copyright holder, verification result data relating to the object data and then, a decoding process of the object data is controlled based on the verification result data.
An information processing method, comprising the steps of:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs: for generating or…
Systems for the transmission of television signals using pulse code modulation: systems for transmission of a pulse code modulated video signal…
Methods or arrangements for coding, decoding, compressing or decompressing digital video signals: using video object coding
Involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements: by…
Term ended 12 Mar 2020 (estimated)
1. Field of the Invention
The present invention relates to a verification apparatus, verification method, verification system, and storage medium and, more particularly, to a verification apparatus, verification method, verification system, and storage medium, which are suitable when verification is necessary for the purpose of copyright protection associated with individual objects of a moving image to be played back.
2. Description of the Related Art
FIG. 1 is a block diagram showing a conventional digital video data transmission/reception system;
FIG. 2 is a block diagram showing the arrangement of a conventional MPEG-4 player;
FIG. 3 is a block diagram showing the schematic and simple arrangement of the player shown in FIG. 2;
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. The following embodiments are related to a system for efficiently executing verification processing using a so-called “back-channel”.
(First Embodiment)
FIG. 4 is a block diagram showing the schematic arrangement of a system including an MPEG-4 player according to a preferred embodiment of the present invention. The system shown in FIG. 4 operates “IP Data” to realize “IP Protection”. The system shown in FIG. 4 has an IPMPS (Intellectual Property Management and Protection System) 207 and is different from the system shown in FIG. 3 in that the copyright verification and protection function are realized by this IPMPS 207.