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. 13, 2000
Filed:
Jun. 24, 1998
Applicant:
Inventors:
Yoshiji Inoue, Tokyo, JP;
Yasuhiro Okazaki, Tokyo, JP;
Assignees:
Mitsubishi Electric Engineering Co., Ltd., Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H04B / ;
U.S. Cl.
CPC ...
327427 ; 327554 ; 327589 ; 327404 ;
Abstract
A switching circuit operable under a low voltage power source includes first and second level shift circuits. The level shift circuits receive a switching control signal and generate an internal switching signal and an inverted internal switching signal. The level shift circuits supply the internal switching signals to switching elements. A switched capacitor filter includes an amplifier and the described switching circuit. The amplifier has amplification inverters connected in series in three stages.