Communication system with secondary channel rebroadcasting within a local area network
CA 2435650 C · Owner: Hughes Electronics Corporation · Inventors: Sibley, Erin H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system (10) of distributing electronic content includes a network operations center (214) forming a composite broadcast signal having digital electronic content during a vertical blanking interval of a primary channel signal. A content delivery system (210) receives the composite broadcast signal from the network operations center and broadcasts the composite broadcast signal. A base station receives the composite broadcast signal forms a wireless local area network (228). The base station (220) rebroadcasts at least a portion of the composite signal as a rebroadcast signal using the wireless local network. A user appliance (232) is positioned within the local area network and …
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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 January 25, 2002 and granted April 29, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 25, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 25, 2024.
- 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.