Method for dynamic allocation of voice and image compression
CA 2203577 C · Owner: At&T Corp. · Inventors: Javitt, Joel I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A communications system providing a means for dynamically controlling system performance during times when communications traffic substantially changes to prevent blocking service while maintaining communications quality. The communications system provides such dynamic control for voice and/or video communications. For example a voice communications system, according to the present invention provides a means for increasing the effectivevoice capacity during times of increased voice traffic in a given service area and, decreasing the effective voice capacity during time of decreased voice traffic wherein the decrease in the effective voice capacity provides an increase in voice quality. In …
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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 April 24, 1997 and granted July 31, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 24, 2019.
- 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.