Dynamic adaptation voice audio jitter control method
CA 2326211 A1 · Owner: Li, Fujian · Inventors: Yang, Oliver; Cheng, Brian; Li, Fujian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A jitter control system is provided for determining display latency and simultaneously reducing audio gaps in received voice packets. Three methods are set forth for estimating the mean delay and delay variation for the voice packets from collected measurements . Based on these estimations, a Gaussian delay distribution is built for the packet arrival. Then, probabilities for single gap and multiple contiguous gaps for a given display delay are calculated and the packet is played out. Hence the, display delay can be dynamically adjusted according to recent delay characteristics and tradeoff policy between gap frequency and display latency.
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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 November 17, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 17, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 17, 2022.
- 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.