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:
Sep. 07, 2004
Filed:
Oct. 02, 2001
Yasuhiko Nitta, Tokyo, JP;
Hiroki Takahashi, Tokyo, JP;
Renesas Technology Corp., Tokyo, JP;
Abstract
A semiconductor integrated circuit includes two power supply lines and at least one electronic circuit connected to each of the power supply lines. One of the two power supply lines is connected with an externally located main power source, and the other power supply line is connected with an externally located backup power source. A switch electrically connects or disconnects the power supply lines with each other. A power supervisory circuit monitors voltage of the main power source and controls the switch. The switch is controlled so that power from the main power source is supplied to the electronic circuits when the main power source is operating normally, and power from the backup power source is supplied to the electronic circuits when the main power source has a failure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile