Electrical computers and digital data processing systems: input/ – Input/output data processing – Peripheral monitoring
Patent
1997-11-28
2000-01-18
Lee, Thomas C.
Electrical computers and digital data processing systems: input/
Input/output data processing
Peripheral monitoring
340635, 340644, 340654, G06F 1314
Patent
active
060165197
ABSTRACT:
Disclosed is a system, for exchanging data among a plurality of devices, wherein a device can detect the state of another device without that device being powered on, and whereby usability can be enhanced.
According to the system, during data communication a power supply device supplies power to a power reception device, and activates sections necessary for the power reception device. The state of the power reception device is detected by a power management unit, and the information that is obtained is transmitted across a data I/F unit to the power supply device, and stored in a storage unit. Based on the stored status information, the supply of power to the power reception device can be controlled.
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Chida Makoto
Iwata Kazuo
Shimoda Akiyoshi
Canon Kabushiki Kaisha
Elamin Abdelmoniem I.
Lee Thomas C.
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