Is a
Patent attributes
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Eiji Enami0
Takaaki Shirai0
Tetsuya Yano0
Date of Patent
October 25, 2011
0Patent Application Number
121984140
Date Filed
August 26, 2008
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A power mode designating unit of a main system outputs an operation mode designating signal to a sub system. Upon shifting from the normal operation mode to the power-saving mode, a control unit of the sub system outputs a power-saving mode shift enable signal indicating that shifting to the power-saving mode is possible to a power control unit of the sub system. When the operation mode designating signal designates the power-saving mode and the power-saving mode shift enable signal indicates that shifting to the power-saving mode is possible, the power control unit supplies a power-saving mode voltage to the control unit.
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