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. 30, 2011
Filed:
May. 29, 2008
Applicants:
Masahito Sonehara, Mito, JP;
Yoichiro Kobayashi, Ome, JP;
Inventors:
Masahito Sonehara, Mito, JP;
Yoichiro Kobayashi, Ome, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/687 (2006.01);
U.S. Cl.
CPC ...
Abstract
An analog switch having a low capacitance is achieved. Potentials of input/output terminals of the analog switch and a well potential and a gate potential of an NMOS switching device are operated in synchronization via level shift buffers, thereby cancelling parasitic capacitances present between these elements.