Automatic gain control for reducing effects of jamming
CA 2121684 C · Owner: Comsat Corporation · Inventors: Arnstein, Donald S.; Lee, Jong W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved automatic gain control (18) for an amplifier (10) is obtained by controlling the size of a zone in a drive signal (26) for the amplifier (10). The size of the zone is controlled by estimating strength of an interference signal and , dynamically varying the size of the zone based on the estimated strength of the interference signal. As a result the amplifier (10), rarely saturates, regardless of signal strength. The invention is useful to reduce the harmful effects of jamming or interference.
Read the whole patent
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 October 29, 1992 and granted August 31, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 29, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 2014.
- 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.