Cdma receiver employing successive cancellation of training-signal interference
CA 2228204 A1 · Owner: Kawakami, Eiichiro · Inventors: Kawakami, Eiichiro; Shimizu, Satoru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A code division multiple access receiver which, receives a signal combining both information signals and training signals, has an interference canceler that successively estimates and cancels interference caused by the training signals. The interference canceler also successively estimates and cancels interference caused by the information signals. The estimating and canceling process is preferably repeated, for each training signal and each information signal, in two or more stages.
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 January 29, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 29, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 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.