Feed forward distortion correction circuit
CA 1296778 C · Owner: Nojima, Toshio · Inventors: Nojima, Toshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a feed forward type distortion correction circuit which detects a nonlinear distortion component of a main amplifier, amplifies the distortion component by an auxiliary amplifier and injects the amplified distortion component into the main amplifier output to cancel the distortion component to thereby reduce the nonlinear distortion component a, predistortion correction circuit is provided at the input side of the main amplifier so as to reduce the distortion component which is produced by the main amplifier, whereby the maximum output of the auxiliary amplifier can be set to a value smaller than the maximum output of the main amplifier.
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
- 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.