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:
Nov. 30, 1999
Filed:
Nov. 12, 1997
Applicant:
Inventor:
Masashi Itoh, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, , JP;
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
327309 ; 327 74 ; 327331 ; 327478 ;
Abstract
A buffer circuit including current sources and switches to connect and disconnect current sources to an output node. The switches are controlled by voltage detectors for comparing an input signal with a reference level. When the reference level is a predetermined value, the amplitude of an output signal swings up to V.sub.CC and swings down to V.sub.EE.