Personal computer system variable resolution timers

Details Personal computer system variable resolution timers Personal computer system variable resolution timers

1991-12-20

1994-03-22

Shaw, Dale M.

G06F 1300

Patent

active

052972755

ABSTRACT:
When using a periodically interrupting timing device to implement software timers, a wide variety of resolutions for such timers can be provided with minimal interrupt overhead. This is achieved by dynamically reprogramming the frequency of the interrupting device to be at a selected low rate necessary to provide the resolution requested by the next, impending timer to expire. This is particularly useful when a periodic timing device is the only device available to implement variable timer resolutions.

REFERENCES:
patent: 4159516 (1979-06-01), Henrion et al.
patent: 4611279 (1986-09-01), Andresen et al.
patent: 4685678 (1987-08-01), Frederiksen
patent: 4698748 (1987-10-01), Juzswik et al.
patent: 4794386 (1988-12-01), Bedrij et al.
patent: 5012435 (1991-04-01), Bailey et al.
patent: 5117387 (1992-05-01), Nemirovsky et al.

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