Trunked communication system for voice and data
CA 1296773 C · Owner: Thro, Stuart Wells · Inventors: Thro, Stuart Wells; Zdunek, Kenneth John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A trunked voice/data communication system (100 is provided wherein a plurality of the trunked voice repeaters (104) are adapted (122) to accommodate both voice and data traffic. Data channels are assigned for a dynamically varying period of time depending upon traffic load or time of day. Once a data channel is established any data unit (114 or 116) may transmit without re-requesting a data channel. In this way the, protracted request grant delay times are avoided. After the time interval, or if higher priority voice traffic exits, the data channel is reallocated to voice traffic. Thereafter another data channel request may result in a data channel grant for another time interval.
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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
- Granted March 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 2009.
- 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.