Ultra-wide band wireless/power-line communication system for delivering audio/video content
CA 2534974 C · Owner: Boyden, David C. · Inventors: Boyden, David C.; Iwamura, Ryuichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for communicating content streams (i.e. voice video, data) between a , content server (12) connected to a power-line communications network (14) and a remote electronic device (40) having ultra-wide band connectivity with an interface module (16). The interface module (16) is a power-line communication/ultra-wide band (PLC/UWB) module preferably connected to a conventional power outlet (36) upon the power-line network. The interface module (16) converts the power-line signals from the server (12) to ultra-wide band signals which are broadcast for reception by the wireless electronic device (40). Return communications with the server (12) from the wireless electronic device …
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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 August 4, 2004 and granted May 29, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 4, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 4, 2026.
- 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.