Automatic gain control circuit
CA 2236282 C · Owner: Kinomura, Masahiro · Inventors: Kinomura, Masahiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automatic gain control circuit of an amplifier 1 having a gain control function is provided with a signal-to-noise detection circuit 2 which detects a signal-to-noise ratio of an output signal and an AGC setting circuit 3 which sets the gain of the amplifier 1. The AGC setting circuit 3 determines the AGC gain according to the level of an input signal and the signal-to-noise ratio detected by the signal-to-noise ratio detection circuit 2. In a region where there is a large AGC gain and where the signal-to-noise ratio is reduced by the AGC circuit, the level of an output signal is increased so as to render the signal-to-noise ratio of the output signal constant. Even if an input electric …
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 April 29, 1998 and granted July 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 29, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 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.