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:
Jan. 06, 2004
Filed:
Feb. 11, 2002
Ken-ichi Uto, Tokyo, JP;
Kuniaki Motoshima, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
The amplifier circuit includes differential amplifier circuits ( to ); a peak detector circuit ( ) for detecting a peak value of an output voltage of a differential amplifier circuit of the last stage; an offset compensation voltage generator circuit ( ) for generating an offset compensation voltage for offset compensation on the basis of a detection result of the peak detector circuit ( ); and an offset output limiter circuit ( ) for limiting the offset compensation voltage generated by the offset compensation voltage generator circuit ( ) into a predetermined range and feeding back the limited offset compensation voltage to a differential amplifier circuit ( ) of the first stage.