Cdma radio transmitting apparatus and cdma radio receiving apparatus
CA 2236518 C · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Uesugi, Mitsuru; Miya, Kazuyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a CDMA radio transmitting apparatus that controls generation of unnecessary frequency components variable data, after assembled by frame assembly circuit in frame units, is time-multiplexed with fixed data in slot assembly circuit . At this time, slot assembly circuit reads the placement location information of fixed data in each slot from memory and carries out time-multiplexing based on the information using random patterns whose repetition cycle is one super frame.
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 May 1, 1998 and granted November 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 1, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 1, 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.