A system and method for wireless broadcast on shared channels
CA 2299444 A1 · Owner: Bellsouth Intellectual Property Group, Inc. · Inventors: Enzmann, Mark; Zellner, Samuel N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method for providing wireless broadcast on shared channels in a cellular communications system. The system and method in response to a request from a remote user for broadcast service designates a voice channel as a broadcast channel, disables the quality monitoring for the designated broadcast channel, activates the designated broadcast channel and instructs , the requesting remote user to tune to the designated broadcast channel. Each subsequent requesting remote user is also instructed to tune to the same broadcast channel. Similarly, in response to a request from broadcaster the , system and method identifies the remote user to receive the broadcast designates a voice …
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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 23, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 23, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 23, 2020.
- 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.