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:
Aug. 24, 1999
Filed:
Aug. 26, 1998
Masaki Kaneko, Tokyo, JP;
Hiroyuki Kobatake, Tokyo, JP;
Masakazu Amanai, Tokyo, JP;
Kazuaki Kato, Tokyo, JP;
Satoru Oku, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A semiconductor device has a plurality of power supply circuits whose generated voltages are different from each other, and a plurality of internal circuits whose operating voltages are different from each other. The power supply circuits and the internal circuits are interconnected by power lines with respective power supply switches inserted therein. The power lines are connected to a single external terminal by respective control lines with respective external switches inserted therein. The power supply circuits and the internal circuits can be tested from the single external terminal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile