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. 14, 2006
Filed:
Mar. 06, 2002
Naoto Watanabe, Chiba, JP;
Masatoshi Yaginuma, Ibaraki, JP;
Kiyoshi Okamoto, Ibaraki, JP;
Hitoshi Kato, Ibaraki, JP;
Naoto Watanabe, Chiba, JP;
Masatoshi Yaginuma, Ibaraki, JP;
Kiyoshi Okamoto, Ibaraki, JP;
Hitoshi Kato, Ibaraki, JP;
Canon Kabushiki Kaisha, , JP;
Abstract
A program operating apparatus is provided, which is capable of rewriting control programs for a plurality of CPUs without using any exclusive external apparatuses, thereby achieving a simplified and efficient rewrite operation. A control program stored in a ROM of a master CPU that controls the basic operation of the entire apparatus is transferred to a slave CPU and then written to an internal ROM of the slave CPU which controls the operations of functional units of the apparatus. The transfer of the control program is carried out when the mode of the apparatus is switched to a write control mode.