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:
Jun. 02, 2015
Filed:
May. 20, 2014
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Fujitsu Semiconductor Limited, Yokohama-shi, Kanagawa, JP;
Naoya Shibayama, Kawasaki, JP;
Masatoshi Yoshida, Taiwa, JP;
FJUITSU LIMITED, Kawasaki, JP;
SOCIONEXT INC., Yokohama, JP;
Abstract
A resistance adjusting circuit including, a reference resistor, a first power source configured to output a first voltage, a first current source configured to output a first current based on a reference current set by using the reference resistor, a first variable resistor, a second current source configured to output a second current obtained by multiplying the first current by a reciprocal ratio, the reciprocal ratio being obtained as a reciprocal number of a ratio of a target resistance of the first variable resistor to a resistance of the reference resistor, and a controller configured to set a resistance of the first variable resistor so that a voltage at a second terminal of the reference resistor and a voltage at a connecting part of the first variable resistor and the second current source become equal to each other.