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:
Oct. 07, 2003
Filed:
Jul. 18, 1997
Applicant:
Inventor:
Ryoji Kubo, Funabashi, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/130 ;
U.S. Cl.
CPC ...
G06F 1/130 ;
Abstract
When a device is removed during recording, there is a possibility such that a fatal error may be caused in the device. Information for device control is read out from the device. When it is detected that a cover which covers the device is opened or that a power voltage is equal to or less than a predetermined value during the operation with a battery, a control unit invalidates the read-out control information for the device. Therefore, when the device is erroneously taken out during the recording or when a battery output drops during the recording, a fatal error is not caused in the device.