Method and apparatus for coding motion image signal
CA 1266912 C · Owner: Nec Corporation · Inventors: Mochizuki, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An encoder in an encoder/decoder system includes a circuit for orthogonally transforming an input image signal, a circuit for receiving the input image signal judging which orthogonal transformation coefficient is to be omitted and which orthogonal transformation coefficient is to be interframe-coded, and outputting a judgment result as mode information, and a circuit for receiving an output signal from the orthogonal transformation circuit omitting the orthogonal transformation coefficient according the mode information, and outputting a coded image signal. In a decoder in the encoder/decoder system the orthogonal transformation coefficient is omitted on the basis of the mode information …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 20, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 20, 2007.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.