Adaptive equalizer and adaptive diversity equalizer
CA 2130157 C · Owner: Mitsubishi Denki Kabushiki Kaisha · Inventors: Ueda, Koji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adaptive equalizer which has a decision feedback adaptive equalizer unit 41, a linear adaptive equalizer unit 42, comparing circuit 47 which compares integrated equalizing error value of the decision feedback adaptive equalizer 41 with integrated estimation error value of the linear adaptive equalizer unit 42, and selecting circuit 48. The selecting circuit 48 selects one of the equalizer units 41 and 42, which has the better performance-based on the result of the comparison of comparing circuit 47.
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 August 15, 1994 and granted April 21, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 15, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 15, 2016.
- 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.