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:
Aug. 12, 2003
Filed:
Jan. 08, 2002
Applicant:
Inventor:
Shuji Toda, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 ;
U.S. Cl.
CPC ...
H03F 3/45 ;
Abstract
Externally input voltages IN(−) and IN(+) are input to the input terminal of a differential amplifier unit ( ) not directly, but after being shifted by voltage shift units ( ). The input voltages IN(−) and IN(+) are decreased by &agr; when they are at high level, and by &bgr; when they are at low level. In this case, &agr;>&bgr;. The voltage difference of the external input voltage IN between high and low levels is relatively reduced, and then the external input voltage IN is input to the differential amplifier unit ( ). This widens the substantial in-phase input voltage range in the differential amplifier unit ( ).