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:
Jul. 06, 1993
Filed:
Dec. 18, 1991
Applicant:
Inventors:
Laszlo V Gal, Poway, CA (US);
Craig T Prunty, San Diego, CA (US);
Assignee:
Unisys Corporation, Blue Bell, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
307475 ; 307451 ; 307448 ;
Abstract
A signal translator circuit receives digital input signals of one voltage polarity and translates them to digital output signals of an opposite polarity. One embodiment of the translator converts conventional CMOS signal levels of +5 and 0 volts to modified CMOS signal levels of 0 and -5.2 volts. Another embodiment of the translator converts the 0 and -5.2 volt signals to the +5 and 0 volt signals. Both embodiments of the translator are made of transistors whose breakdown voltage only slightly exceeds +5 volts.