Power amplifier sharing in a wireless communication system with transmit diversity
CA 2352369 A1 · Owner: Lucent Technologies Inc. · Inventors: Ma, Zhengxiang; Polakos, Paul Anthony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The technique of amplifier sharing is implemented in a system designed to accommodate transmit diversity. In one embodiment of the invention the, amplifiers (670 and 675) are shared 1) to amplify a first and a second diversity-, encoded signal, each of which represents the information of a first signal that is to, be transmitted using transmit diversity and 2) to amplify a second signal to , be transmitted without using transmit diversity. The first and second diversityencoded, signals are used to form a first and a second composite signal. Each composite signal is amplified in a different one of two power amplifiers (670 and 675). Each, amplified composite signal is then used to form an …
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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 July 4, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 4, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 2023.
- 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.