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. 09, 2007
Filed:
Sep. 29, 2004
Masatoshi Tanaka, Kanagawa, JP;
Yosuke Matsushita, Kanagawa, JP;
Kazuhiko Akiyama, Shizuoka, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Carrier Corporation, Tokyo-To, JP;
Abstract
A microcomputer comprises: a memory which stores a predetermined program; a CPU which reads the program stored in the memory based on a predetermined instruction to perform a predetermined calculation; and a read controller which controls reading of the program from the memory, and the microcomputer further comprises: a plurality of memory areas disposed in the memory and having distinction bits; distinction unit for distinguishing the memory areas using the different distinction bits; and read access controller for prohibiting the reading from the memory area in which another program is stored based on a distinction result of the distinction unit.