Programmable timing system

Details Programmable timing system Programmable timing system

1983-03-28

1986-01-14

Miller, Stanley D.

Electrical pulse counters, pulse dividers, or shift registers: c

Systems

With programmable counter

377 44, 328 60, 328 63, 307269, 307265, H03K 2366, H03K 513, H03K 504

Patent

active

045649537

ABSTRACT:
A programmable high resolution timing system includes a selectable modulus prescaler counter. In one embodiment a high frequency clock is coupled to a prescaler counter which provides an output signal every predetermined number of clock pulses. The prescaler is coupled to a period counter which provides a period signal after a predetermined number of prescaler output signal pulses. The prescaler and period counter are coupled to a memory which stores data corresponding to the selected modulus of the prescaler and the number of counts by which the period counter output signal is to be delayed. The period resolution is thus made substantially equal to the resolution of the high frequency clock by varying the prescaler modulus at programmable intervals.

REFERENCES:
patent: 3657658 (1972-04-01), Kubo
patent: 3870963 (1975-03-01), Groce et al.
patent: 4017719 (1977-04-01), Kaplan et al.
patent: 4084082 (1978-04-01), Alfke
patent: 4184068 (1980-01-01), Washburn
patent: 4231104 (1980-10-01), St. Clair
patent: 4238825 (1980-12-01), Geery
patent: 4310801 (1982-01-01), Baker
patent: 4330751 (1982-05-01), Swain
patent: 4365202 (1982-12-01), Sinniger
"Sink Your Teeth Into a SAW", by Tom Shoquist, May 1979, Electronic Products Magazine.
"SAW Components Answer Today's Signal-Processing Needs", by R. J. Murray and P. D. White, Electronics, Sep. 8, 1981.

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