Computer peripheral device, its control method, image pickup...

Details Computer peripheral device, its control method, image pickup... Computer peripheral device, its control method, image pickup...

2006-02-14

2006-02-14

Cao, Chun (Department: 2115)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S300000

Reexamination Certificate

active

07000129

ABSTRACT:
A peripheral connected to a host computer is prevented from unexpectedly coming to be in a non-connection state due to control of the host computer. Further, even when the peripheral such as an electronic camera cannot enough receive power necessary for the device itself from a connection line such as a USB, the peripheral is made to be able to use the power effectively. To achieve this, there is disclosed a computer peripheral which is connected to the host computer and comprises a connection signal transmitter for transmitting to the host computer a signal to control the connection with the host computer and a controller for shifting an operation state of the computer peripheral to a low consumption current mode after notifying a user and obtaining approval of the user before transmitting a signal to control into the disconnection state to the host computer by the connection signal transmitter.

REFERENCES:
patent: 5463261 (1995-10-01), Skarda et al.
patent: 5515539 (1996-05-01), Ohashi et al.
patent: 5659763 (1997-08-01), Ohashi
patent: 5925132 (1999-07-01), Kadokura
patent: 6209105 (2001-03-01), Hamamoto
patent: 6662301 (2003-12-01), Sekine et al.

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