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:
Aug. 25, 1992
Filed:
Mar. 01, 1990
Koichi Oi, Kanagawa, JP;
Takashi Hoshi, Kanagawa, JP;
Fuji Xerox., Ltd., Tokyo, JP;
Abstract
A monitor control system comprises an interrupt processor for executing regular monitor processing by a periodic interrupt occurring at a predetermined time interval, and a background processor for executing background processing, wherein when interruption occurs, execution of the background processing by the background processor is interrupted while regular monitor processing is executed during a period in which background processing is interrupted. The time-consuming background processing is treated as a low-level processing task, and the regular monitor processing, as a high-level processing task. The low-level processing task is executed as a background processing during CPU idle time. Interruption of the background processing occurs ever 10-msec, during which the high-level processing task is executed. Accordingly, background processing and regular monitor processing are smoothly executed, and the CPU is thereby efficiently used.