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:
Dec. 17, 1996
Filed:
Dec. 12, 1995
Applicant:
Inventors:
Hisashige Kenji, Kawasaki, JP;
Noboru Yokota, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
326 73 ; 326 68 ;
Abstract
In a level conversion circuit for converting a pair of first-level signals into a pair of second-level signals, an input buffer circuit converts the pair of first-level signals into a pair of buffered signals which vary within a first voltage range situated below a second voltage range within which the pair of first-level signals vary. An amplifier circuit, which includes a plurality of CMOS differential amplifier circuits cascaded, converts the pair of buffered signals into the pair of second-level signals varying within a third voltage range broader than the second voltage range of the pair of first-level signals.