Resume on pen contact

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United States of America Patent

PATENT NO 5974558
SERIAL NO

08543510

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A pen-based portable personal computer utilizes a passive stylus. In order to conserve battery power, the system automatically goes into a low-power state after a predetermined period of inactivity. In the low-power state, minimal power is provided to a digitizer panel in order to enable the digitizer panel to sense contact by the passive stylus. Once the passive stylus comes in contact with the digitizer panel, the pen-based portable computer system is awakened and placed in a full-power state.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
NEC CORPORATION7-1 SHIBA 5-CHOME MINATO-KU TOKYO 108-8001

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cortopassi, Michael Buffalo Grove, IL 24 806
Gladwin, S Christopher Chicago, IL 332 13583
Voegeli, Derick W Wheeling, IL 5 280

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