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:
Jan. 03, 1989
Filed:
Oct. 15, 1985
Andrew T Jennings, West Chester, PA (US);
John A Keller, Coatesville, PA (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
A task control mechanism for maintaining a queue of ready or available processes linked together according to an assigned priority for a plurality of central processors where the processors may be assigned to the highest priority task when that processor is not busy executing some higher priority task. The task control mechanism also includes a mechanism for computing task priorities as new tasks are inserted into the queue or removed. The mechanism also maintains an event table which is really a table of event designations to be allocated to different processes upon request where the requesting processes assign a particular function or 'meaning' to the event designation. The mechanism of the present invention maintains the state of such allocated events in the event table and signals the related (or 'waiting') processes that an event has happened so that the particular system central processors assigned to execute those particular processes may then proceed with their execution.