Diversity receiver
CA 2269740 C · Owner: Tomoe, Naohito · Inventors: Igarashi, Hideki; Tomoe, Naohito
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A diversity receiver includes: a differential detection diversity reception circuit for performing a diversity reception with employment of a differential detection to thereby output hard decision data thereof; a least-squares combining diversity reception circuit for performing a least-squares combining diversity reception to thereby output differentially decoded result of the hard decision data; a selection control circuit for producing a selection control signal used to select one of the hard decision data outputted from the differential detection diversity reception circuit and the differentially decoded result outputted from the least-squares combining diversity reception circuit …
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 22, 1999 and granted December 11, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 22, 2021.
- 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.