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:
Mar. 08, 1994
Filed:
Jun. 30, 1992
Applicant:
Inventors:
Haluk O Askin, Clinton Corners, NY (US);
David T Hui, Poughkeepsie, NY (US);
Bijan Salimi, Wappingers Falls, NY (US);
Charles B Winn, Hyde Park, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307443 ; 307455 ; 307540 ;
Abstract
An improved differential cascode current push-pull driver is provided by controlling the up level by clamping the collector node with respect to output signal reference VR to less than VCC. The collector resistors are made smaller so there is smaller signal swing and faster operation.