Digital pulse stretcher

Details Digital pulse stretcher Digital pulse stretcher

1984-05-07

1985-11-19

Pitts, Harold I.

Registers

Coded record sensors

Particular sensor structure

G06K 710

Patent

active

045544450

ABSTRACT:
An apparatus for varying the pulse width of a computer clock by adding a predetermined amount of time to the clock pulse width. A synchronous counter is combined with a latch into a circuit whereby a pulse input to the circuit resets both the latch and counter on the leading edge, and whereby the trailing edge of the input pulse releases the latch and counter allowing the counter to count clock pulses. On a predetermined pulse the counter's carry-output terminal clocks a logic high into the D latch terminal. Concurrently, an output from the latch is fed back to the counter's count-enable input to disable counting until a subsequent pulse resets the circuit. The net effect is to add a predetermined amount of time to the input pulse so that the extended pulse is available at the output of the latch.

REFERENCES:
patent: 3761685 (1973-09-01), Alpert

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