Broadband communications using a medium-voltage power line
CA 2487848 A1 · Owner: Kopp, Lowell E. · Inventors: Hunt, Philip G.; Kopp, Lowell E.; Riley, Paul M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A broadband service communication system (8) using a medium voltage (MV) cable (500) for conveying RF signals in a network segment (10) which includes a , distribution center (PLT controller) (20) and a plurality of power line telecommunication (PLT) stations (30). The PLT controller (20) has a distribution modem (62) for conveying downstream and upstream RF signals to and from the PLT stations (30) through the MV cable (500) via couplers. Each PLT station (30) has a modem (32) for conveying the downstream and upstream RF signals via couplers and for conveying media signals to one or more customer premises equipment (CPE) via, e.g. wireless links. The PLT controller (20) controls …
Read the whole patent
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 May 28, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 28, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 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.