Method and apparatus for data-path conversion comprising pcm bit robbing signalling
CA 2326229 A1 · Owner: Lee, Ick Don · Inventors: Robinson, Bruce W.; Lee, Ick Don
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for triggering data-path conversion utilizing PCM bit robbing signalling. The method and apparatus permits the pass-through of compressed voice packets over a PCM stream between dissimilar interconnected networks or dissimilar payload specifications in the interconnected networks, and also provides the capability to convert the packets, to a different payload specification between the networks. Once a voice path is, established between the two networks the incoming PCM data stream is, monitored for a voice synchronization pattern which appears periodically in a predetermined bit position in the PCM samples. Upon detection of a matching voice synchronization pattern, …
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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.