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. 06, 2011
Filed:
Mar. 17, 2009
Hirokazu Okada, Kawasaki, JP;
Hirokazu Okada, Kawasaki, JP;
Fujitsu Semiconductor Limited, Yokohama, JP;
Abstract
A device includes a measurement target circuit including a first circuit, a switch provided to a measurement node of the first circuit and a second circuit connected to the measurement node of the first circuit through the switch; and a current measuring circuit including a reference current source group connected to the measurement node through the switch and making a reference current of a predetermined value flow into the first circuit, a sample hold circuit connected to the measurement node, and sampling and holding the potential of the measurement node when the first circuit is connected to the second circuit by the switch, and a comparator connected to the measurement node and an output of the sample hold circuit and comparing an output of the sample hold circuit with the potential of the measurement node when the first circuit is connected to the reference current source group by the switch.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile