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:
Dec. 01, 2009
Filed:
Oct. 18, 2007
Applicant:
Masakiyo Horie, Gamagori, JP;
Inventor:
Masakiyo Horie, Gamagori, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multi-channel sample and hold circuit includes an operational amplifier, plural electric charge setting channels. Each of the electric charge setting channels includes an input terminal, an electric charge setting capacitor, an electric charge setting switch connected between the input terminal and the electric charge setting capacitor, a channel separating switch connected between the electric charge setting capacitor and the input terminal of the operational amplifier and a holding switch and a control circuit for selecting one of the electric charge setting channels to hold a signal that is inputted to the input terminal thereof.