Method for reducing power consumption, and portable electronic device and entertainment system that employ the method
CA 2325138 A1 · Owner: Sony Computer Entertainment Inc. · Inventors: Morita, Toru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
It is an object of the present invention to provide a method and device which can efficiently use a battery used for portable electronic device without lowering quality of sound emission of a musical piece an effect sound and so , on. According to the present invention in order to achieve both the longer , battery life of the portable electronic device and better quality of the sound emission, an operation clock of the CPU of the portable electronic device and the processing wait time of image drawing are controlled dynamically. When there is no sound emission, the CPU is run at a low clock and if there is a , sound emission request the CPU is switched to run at a high clock (ST7) and …
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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 January 21, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 21, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 21, 2022.
- 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
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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.