Interference cancellation circuit
CA 1320535 C · Owner: Ito, Masahiko · Inventors: Ito, Masahiko; Matue, Hideaki; Watanabe, Kazuzi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to an interference cancellation circuit which can remove the interference signal caused by other systems and contained in received signals. This invention circuit can cancel interference signal even if the interfernce signal is not directly obtained or plural interference signals exist, or the interference signal is wideband signal or raster interference simply by receiving two signals which have passed through different transmission paths, combining the main signals contained in each of the received signals in a manner to offset each other to extract interference signal and, removing interference signal component from the received signal based on the expected …
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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
- Granted July 20, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 20, 2010.
- 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.