Method to determine an access frequency band, a head-end and a first terminal realizing such a method and a communication access network including such a head-end and such a terminal
CA 2240748 A1 · Owner: Wolters, Robert Peter Christina · Inventors: Wolters, Robert Peter Christina; Krijntjes, Cornelis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method to determine an access frequency band in a communication access network. The communication access network includes terminals (T11 T12, T13, ... T31, ...) and a head-end (HE) which includes transceivers (TRX1 TRX2, TRX3, ...). The head-end is downstream coupled to each one of the terminals via a downstream common link (Lc) and a tree-like distributive network. Each one of the transceivers provides to a combiner (COMB) included in the head-end a downstream signal (Sd1, Sd2 Sd3, ...) in a frequency band, associated by means of a predetermined first association to one of the transceivers. The downstream signals are together combined by the combiner into a downstream modulated signal …
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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 July 9, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 9, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 9, 2020.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.