Joint rate control for stereoscopic video coding
CA 2284810 A1 · Owner: General Instrument Corporation · Inventors: Wang, Limin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus are provided for controlling and balancing a quality ratio between left and right channels of a stereoscopic video sequence. A complexity measure for each of the channels is first determined. Thereafter a number of bits representing the video sequence is allocated between the channels according to each channel's complexity. The resultant joint rate control allows the bit rates for the two channels to vary according to the complexity measures of their pictures, while the aggregate bit rate is maintained at the channel capacity, which is a constant value.
Read the whole patent
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 30, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 30, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 2021.
- 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.