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:
Jul. 24, 2007
Filed:
Jan. 09, 2003
William John Testin, Indianapolis, IN (US);
William John Testin, Indianapolis, IN (US);
Thomson Licensing, Boulogne-Billancourt, FR;
Abstract
A system including a processor is energized from a source which is subject to power failure. To allow the state of the system to be restored after the power failure, at least portions of the volatile data of the processor are stored in non-volatile electrically erasable programmable read-only memory (Eeprom). In order to effectuate the data transfer, storage capacitors must provide power to the Eeprom and to the processor. In order to minimize the amount of storage capacitance, the processor power is maintained only until the data to be stored is transferred to the buffer of the Eeprom. Eeprom power is maintained until after a later time at which the buffer transfers the data to non-volatile storage of the Eeprom.