Portable electronic device

Details Portable electronic device Portable electronic device

2005-06-07

2005-06-07

Picard, Leo (Department: 2125)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S300000, C713S340000, C700S297000

Reexamination Certificate

active

06904532

ABSTRACT:
A portable electronic device including a USB connector, an internal power source, a USB controller to execute data communication processing for data communication with a personal computer connected to the USB connector, a main CPU to execute device operation processing for usual operation of the device. When the USB controller executes data communication processing, the device is supplied with power at high voltage from the personal computer through the USB connector. When the main CPU executes device operation processing, the device is supplied with power at low voltage from the internal power source. Accordingly, this makes not only high speed data communication available, but also prolongs the life of the internal power source.

REFERENCES:
patent: 5446905 (1995-08-01), Koshiishi
patent: 5650669 (1997-07-01), Aldous
patent: 5764502 (1998-06-01), Morgan et al.
patent: 6003138 (1999-12-01), Chung
patent: 6178514 (2001-01-01), Wood
patent: 6338143 (2002-01-01), Shimazaki
patent: 6459175 (2002-10-01), Potega
patent: 0 472 261 (1992-02-01), None
patent: 0 551 080 (1993-07-01), None
Copy of European Search Report for corresponding European Patent Application No. 00 12 8281 dated Apr. 2, 2001.

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