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. 10, 1985
Filed:
Mar. 30, 1984
Applicant:
Inventors:
Robert L Rabe, Maple Grove, MN (US);
Paul J Swan, Brooklyn Center, MN (US);
Assignee:
Honeywell Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
307475 ; 307451 ; 307279 ;
Abstract
An interface circuit to couple logic signals from a logic gate of one kind of logic family to a logic gate of another operating at different logic state voltages, where a latch circuit is used with the first of two cascaded inverters to provide the desired interface circuit signal characteristics. One inverter is provided with a supply reduction threshold means as is another inverter in the latch so that the two inverters perform substantially similarly to one another. The latch allows independent adjustments of opposite direction logic level transitions to provide a desired noise margin.