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:
Mar. 22, 1994

Filed:

Dec. 26, 1991
Applicant:
Inventors:

James P Millar, San Jose, CA (US);

Eddie B Collins, San Jose, CA (US);

Ronald Weber, Sunnyvale, CA (US);

Clifford A Petersen, San Jose, CA (US);

Assignee:

Amdahl Corporation, Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
395550 ; 395575 ;
Abstract

Determinism is maintained in a synchronous first system although the first system receives behaviorchanging signals from a second system running asynchronously relative to the first system. The second system refrains from sending behavior-changing signals to the first system until the first system stops its clock at a prespecified clock cycle and signals the second system of the event. The second system then downloads the behavior-changing signals into the first system and restarts the first system clock. The first system awakens to discover that the behavior-changing signals have been received during the prespecified clock cycle. This is repeated over multiple runs, and in each run the same behavior-changing signals are transferred at the same prespecified clock cycles of the first system. Deterministic behavior is thereby maintained in the first system.


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