Method for regulating power in a digital mobile telephony system
CA 2045211 C · Owner: Andersson, Hans Erik · Inventors: Andersson, Hans Erik; Larsson, Stig Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method of regulating or adjusting the transmission power when transmitting signals between a mobile station and a base station in a digital mobile telephony system. The output power is regulated with the intention of constantly maintaining the transmission power at an optimum level, by which is meant that the transmission power is as low as possible such as to prevent unnecessary disturbance of neighbouring channels transmitting information on the same frequency but, sufficiently high for the transmitted information to be interpreted in the receiver. The measurement values of signal strength and signal-transmission quality are collected, the mean values of …
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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 June 21, 1991 and granted August 14, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 2013.
- 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.