Variable rate coder
CA 1324672 C · Owner: Unagami, Shigeyuki · Inventors: Iseda, Kohei; Unagami, Shigeyuki; Tomita, Yoshihiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A variable rate coder for transforming an input signal into a low bit rate digital signal comprising: a, plurality of coding units each comprising an output quantizer having a different number of output bits and, each independently transforming the input signal into a compressed digital signal. A plurality of bit rate determining circuits are provided to determine an output of one of the plurality of coding units as an output of the coder by an individual determining method in which, method, quality of a signal which is regenerated from an output of each coding unit is compared with an individual predetermined quality evaluating standard and then an output of a coding unit having a smallest …
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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 November 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 2010.
- 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
Timeline From CIPO dates
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.