An improved method and system for hit-less switching
CA 2288559 A1 · Owner: Sawey, David C. · Inventors: Sawey, David C.; Cher, Edmund K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method are disclosed for processing digital signals in a telecommunications system that allow hit-less switching between a first digital signal in which a first payload, a first payload indicator marker and a first overhead are transported on a first channel, and a second digital signal in which a second payload identical to the first payload a second, payload indicator marker and a second overhead are transported on a second channel. The present invention includes first and second pointer followers first and, second elastic buffers with control circuits a monitor, circuit, a multiplexer, and a pointer generator. The first and second elastic buffer control circuits each further …
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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 4, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 4, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 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.