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:
Feb. 06, 2007
Filed:
Mar. 08, 2005
Applicants:
Shigeto Kobayashi, Gifu, JP;
Atsushi Wada, Ogaki, JP;
Kuniyuki Tani, Ogaki, JP;
Inventors:
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
One or more input capacitors are connected to an inverting input terminal of an operational amplifier. Connected to the respective input capacitors are switches for on-off control of the input of an input signal, switches for on-off control of the input of another input signal, switches for on-off control of the input of a higher reference voltage and switches for on-off control of the input of a lower reference voltage. The switches for on-off control of the input of an input signal and the switches for on-off control of the input of another input signal are controlled by independent control signals.