Spread-spectrum signal receiving method and spread-spectrum signal receiving apparatus
CA 2237469 A1 · Owner: Mitsubishi Denki Kabushiki Kaisha · Inventors: Murai, Hideshi; Tachika, Hisao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spread-spectrum signal receiving method and apparatus in which a correlation operation is performed for obtaining a correlation between a base-band component of a received spread-spectrum signal and a spread code so as to demodulate the received, signal. In the method a correlation operation between the spread code and the base-band component, and a correlation operation at a timing equal to a timing difference between the spread code and the base-band component in the former correlation operation step, the timing difference being 1/2 of a spread-code interval are performed. Then, based on results obtained in these correlation operations a, correlation operation result at the timing point …
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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
- Filed May 13, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 13, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 13, 2020.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.