Method for dividing a frame structure in a mobile station
CA 2013494 C · Owner: Telefonaktiebolaget Lm Ericsson · Inventors: Persson, Bengt Yngve
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for dividing a frame structure for a mobile telephone system which operates in half-duplex i.e. in which the, transmission and reception of signals in a mobile takes place within mutually separate time-slots. Each frame includes three time-slots, each intended for transmission and reception. According to the method the frame structure is divided so that transmission first takes place in a transmission time-slot. Reception then takes places in a reception time slot which is separate from the transmission time-slot. subsequent to reception (RX), the frame structure includes an idle time (t1) which remains until further transmission takes place in the next-following frame. The method …
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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 March 30, 1990 and granted June 13, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 2012.
- 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.