Entertainment system portable electronic device, method of operating a portable electronic device and recording medium
CA 2317680 A1 · Owner: Sony Computer Entertainment Inc. · Inventors: Nakano, Takeshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A portable electronic device has an interface for connecting it to a parent machine that has the function of executing programs. The portable electronic device further including a program storage unit a control unit that controls , execution of the programs a display that displays information according to the executed programs, an operation input unit for operating the programs and , a power supply unit that supplies power to each of those units. Information accompanying the execution of a calculator program is transferred from the parent machine to the portable electronic device and it executes a calculator , program stored in the program storage unit by the control unit based on the …
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 November 5, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 5, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 5, 2021.
- 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.