Tacho signal processing

Details Tacho signal processing Tacho signal processing

1987-02-27

1990-05-08

Lall, Parshotam S.

Boots, shoes, and leggings

324160, 364508, G01P 342

Patent

active

049244205

ABSTRACT:
This invention relates to apparatus for producing a periodic output signal having a predetermined period ratio (a/b) relative to a periodic input signal.
Signals from a tachometer on a gearbox are received by a counter timer unit, the counter timer unit evaluates the number of clock pulses k.sup.o received from a clock within each period of the tacho signal. A control unit receives values of k.sup.o from the counter timer and employs an algorithm based on the following equation to calculate a count value n.sup.o to be loaded into a register for the next tacho period. ##EQU1## where dK represents k.sup.-1 -k.sup.o. An accumulator is connected via an adder to the register and at receipt of each clock pulse from the clock adds the count stored in register into the accumulator. An output is produced on line when the accumulator overflows.

REFERENCES:
patent: 3944799 (1976-03-01), Brownell
patent: 4167699 (1979-09-01), Baker
patent: 4257005 (1981-03-01), Hall
patent: 4348743 (1982-09-01), Dozier
patent: 4350952 (1982-09-01), Holt et al.
patent: 4488240 (1984-12-01), Kapadia et al.
patent: 4532600 (1985-07-01), Mihara et al.
patent: 4608650 (1986-08-01), Kapadia

Affiliated with

Also associated with

Rating

Tacho signal processing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tacho signal processing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tacho signal processing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2354458