Telecommunication system with a multi-channel digital subscriber line interface and method
CA 2290030 A1 · Owner: Badiee, Behzad · Inventors: Sentoff, Stephen Hedley; Badiee, Behzad; Bond-Harris, James Frederic
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A telecommunication system having a central office switch connected with a subscriber through an asymmetric digital subscriber line service via a single twisted pair, loop with a ATM multi-channel voice interface for converting telephonic voice traffic, from additional telephones of the subscriber to a stream of voice data in logical channel, associated with the additional telephones and having associated individual telephone, directory numbers. The voice data is inserted into high speed data segment of the, asymmetric digital subscriber line service on a dynamic basis prior to transmission to the, central office switch via the twisted pair from the subscriber and a central office …
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 November 18, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 18, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 2021.
- 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.