Multi-channel transmission and reception with block coding in a communication system
CA 2507235 C · Owner: Chen, Tao · Inventors: Chen, Tao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Techniques for transmitting and receiving multiple channels with block coding in a communication system are disclosed. In one aspect a secondary broadcast , channel (320) is transmitted concurrently with parity information encoded , from a primary broadcast channel (310). In another aspect a mobile , station(106)repurposes its receiving circuitry to receive one or more portions of the secondary broadcast channel after a sufficient portion of the primary broadcast channel is received without identified error. In another aspect secondary broadcast channels associated with a plurality of primary broadcast channels (610) are multiplexed onto a single secondary channel (620). Various other …
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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 20, 2003 and granted June 3, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 20, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 20, 2025.
- 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.