Digital image decoding apparatus
CA 2185754 C · Owner: Ohira, Hideo · Inventors: Asai, Kohtaro; Murakami, Tokumichi; Shimada, Toshiaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Data which has been decoded by a decoding portion 101 are compressed by a compressing portion 102 and stored in a prediction / display frame memory portion 103. From the data stored in the prediction / display frame memory portion 103 any data required for decoding other frames in the decoding portion 101 are decompressed through a decompressing A portion 104 and supplied to the decoding portion 101. Alternatively data to be displayed is read from the prediction / display frame memory portion 103, decompressed at a decompressing B portion 105 and supplied to a display apparatus. Writing to and reading from the above-mentioned prediction / display frame memory portion 103 is controlled by an …
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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
- Filed September 17, 1996 and granted September 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 17, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 17, 2018.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.