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:
Jan. 20, 1998
Filed:
Sep. 05, 1995
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An information processing apparatus according to the present invention stores suspension data in a non-volatile storage and performs a 0 V suspension process by which are turned off all power sources of the apparatus. An active suspension process is performed, by which are turned off power sources of the apparatus, excluding a power source that supplies power to the volatile storage. The 0 V suspension process is performed when a power supply voltage level is lower than a predetermined value, while the active suspension process is performed when that voltage level is higher than the predetermined level. The apparatus also predicts a processing time for a transfer unit and a power characteristic for a second storage unit. In addition, remaining power is detected using a reference value that is set at a first predetermined value in accordance with results obtained from the two predictions. The apparatus also has a storage unit that includes expanded memory areas, which are acquired by dividing available space into a plurality of blocks, and an expanded memory system, which has a plurality of page frames that are assigned to the blocks, and manages correspondence between the blocks and the page frames.