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. 26, 2001
Filed:
Dec. 28, 1999
Applicant:
Inventors:
Takehiko Umeyama, Tokyo, JP;
Toru Takeuchi, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 ;
U.S. Cl.
CPC ...
H03F 3/45 ;
Abstract
Emitters of a first NPN transistor and a second NPN transistor forming a differential input section are respectively connected to collectors of a third NPN transistor and a fourth NPN transistor; the collectors and bases of the third NPN transistor and the fourth NPN transistor are respectively connected through first and second capacitors; and the bases of the third NPN transistor and the fourth NPN transistor are respectively connected to a first reference power source through first and second resistors.