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:
Aug. 18, 1998

Filed:

Jan. 30, 1997
Applicant:
Inventors:

Peter Chambers, Phoenix, AZ (US);

Roger Lee Shelton, Phoenix, AZ (US);

Assignee:

VLSI Technology, Inc., San Jose, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395555 ; 395500 ;
Abstract

A patch mechanism for dynamic modification of the behavior of a state machine without interfering with normal operation of the state machine when modification is not required. The patch mechanism uses a programmable logic array for storing a modified transition and a modified output transition for an individual state of the state machine which is to be modified. A pair of multiplexer having inputs coupled to the state machine and inputs coupled to the programmable logic array are used for allowing the state machine to select either the current transition and the current output transition both defined by the state machine, or a modified transition and a modified output transition if a modification of the present state is required. A logic circuit coupled to the state machine and to both multiplexers will signal both multiplexers when it is valid to modify the present state to the modified transition and the modified output transition.


Find Patent Forward Citations

Chambers, Peter. (1998). Patch mechanism for allowing dynamic modifications of the behavior of a (U.S. Patent No. 5796994). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5796994

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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