The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 2006
Filed:
May. 12, 2003
Akihiko Hamamoto, Kanagawa, JP;
Tetsuya Kawanabe, Kanagawa, JP;
Takao Aichi, Tokyo, JP;
Kazuyuki Masumoto, Kanagawa, JP;
Fumihiro Goto, Kanagawa, JP;
Makoto Hibi, Kanagawa, JP;
Tetsuya Suwa, Kanagawa, JP;
Mitsuhiro Ono, Tokyo, JP;
Masato Oshima, Kanagawa, JP;
Akihiko Hamamoto, Kanagawa, JP;
Tetsuya Kawanabe, Kanagawa, JP;
Takao Aichi, Tokyo, JP;
Kazuyuki Masumoto, Kanagawa, JP;
Fumihiro Goto, Kanagawa, JP;
Makoto Hibi, Kanagawa, JP;
Tetsuya Suwa, Kanagawa, JP;
Mitsuhiro Ono, Tokyo, JP;
Masato Oshima, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An information processing apparatus comprising a power unit, a first control unit and a second control unit in which power supply is controlled based on a control signal from the first control unit, wherein when electric power supply from the power supply unit has been stopped and then the electric power supply from the power supply unit has been started, if update of a memory of the first control unit has been instructed, the first control unit transfers the content of a flash ROM in the first control unit into the memory thus updates the content of the memory. At this time, the second control unit is kept in a power-off status by a control signal line until the update of the memory is completed. After the completion of the update, power-on is notified by the control signal line, and the reset status of the second control unit is released.