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. 20, 2003
Filed:
Aug. 17, 2001
Takeshi Shigenobu, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A coupler/isolator alternatively couples and isolates unit amplifiers of a multiple stage chopper amplifier to shift gradually and slightly reset timing and amplification timing of the chopper amplifiers. In this way, a first-stage chopper amplifier to an n-th timing of the chopper amplifiers. In this way, a first-stage chopper amplifier to an n-th stage chopper amplifier are sequentially reset. The first-stage chopper amplifier to the n-th stage chopper amplifier are sequentially operated to amplify, in a pipeline format, a differential voltage between a signal voltage input to a signal voltage input terminal and a reference voltage input to a reference voltage input terminal, and supply the amplified differential voltage to a next-stage circuit.