Customer premises broadband interface system and method
CA 2251470 C · Owner: Bell Communications Research, Inc. · Inventors: Link, Frederick Charles; Schwartz, Barry Kuhn; Lin, Steve Min-Chou
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A broadband customer premises equipment ("CPE") interface device (100) interfaces with conventional telephones (152) screen phones (154), and , broadband data and video devices. The interface device includes circuitry to connect with a telephone network (102) via a first telephone connection (104) and circuitry to connect with a broadband network (106) via a second broadband connection (108). In addition the interface device (100) includes , ADSI off-hook alerting ("AOHA") circuitry and adds ADSI script management server ("ASMS") circuitry to provide noninvasive programming of screen phonetype CPE devices (154). ASMS programming information for a CPE device is transferred to the …
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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 April 10, 1996 and granted October 3, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 10, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 2018.
- 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.