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.

Date of Patent:
Dec. 02, 1997

Filed:

Dec. 18, 1995
Applicant:
Inventors:

Edward R Schurig, Plano, TX (US);

Jay T Cantrell, Dallas, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364488 ; 364140 ; 364489 ; 364490 ; 364D / ; 395310 ; 395555 ;
Abstract

A digital circuit (11) for compelling storage of attributes and for providing output signals indicating status of the storage of attributes, the digital circuit comprising: a digital storage device (26); a first combinational logic circuit (20) connected to the digital storage device (26) for enabling the digital storage device (26) to store the attributes based upon a set of stable first compelled inputs and an enable signal; a second combinational logic circuit (18) connected to the digital storage device for clearing the digital storage device (26) based upon a set of stable second compelled inputs and a clear signal; a first logic gate (30) connected to the digital storage device (26) and the first combinational logic circuit (20) for outputting a signal representative of the attribute being stored in the digital storage device (26); and a second logic gate (28) connected to the digital storage device (26) and the second combinational logic circuit (18) for outputting a signal representative of the digital storage device being cleared. The circuit advantageously reduces that number of states required by an asynchronous state machine without a significant performance degradation.


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