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:
May. 29, 2007
Filed:
May. 11, 2005
Applicants:
Minoru Sudou, Chiba, JP;
Mitsuo Yarita, Chiba, JP;
Kenji Kato, Chiba, JP;
Inventors:
Assignee:
Seiko Instruments Inc., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A CV conversion circuit capable of measuring a plurality of capacitances with a simple circuit is provided. A time-division signal is applied to each capacitor, whereby a plurality of capacitances of the capacitors can be measured in series by a circuit with a small number of components.