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:
Sep. 02, 1980
Filed:
Sep. 25, 1978
Harold G Alles, Bridgewater, NJ (US);
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Abstract
A peripheral processor (13) and associated memory (21) cooperate with a main processor (10) in a data processing system to provide for the main processor multiple parallel timing channels (7) for timing functions of various durations in an extensive range of duration magnitudes. The main processor initiates the timing of an event by interrupting the peripheral processor to specify a device and the duration of its function to be timed for each such function as the need for each timing operation arises. The peripheral processor administers all of the timing channels are queues (8) time-outs as they occur and pending notification of the main processor of the time-out by an interrupt request. Such interrupt requests are generated in a predetermined order with respect to factors such as the order of occurrence of the time-out and the relative interrupt priority of the timed function.