Delay apparatus and method

Details Delay apparatus and method Delay apparatus and method

2005-09-27

2005-09-27

Bayard, Emmanuel (Department: 2631)

Pulse or digital communications

Synchronizers

Self-synchronizing signal

C376S364000

Reexamination Certificate

active

06950486

ABSTRACT:
A delay apparatus delays a rising edge and a falling edge of a digital signal. The delay apparatus includes a first edge detection circuit which detects a first edge or rising edge of the digital signal and generates a detection signal; a set circuit that includes a first counter for generating a count value and clearing the count value in response to the detection signal, wherein the set circuit generates a set signal if the count value reaches the number of the reference clock signals corresponding to the delay period of time; a reset circuit which generates a reset signal if an elapsed period of time since a generation of the set signal equals a period of time the digital signal maintains the second logic level; and an output circuit that outputs a delayed digital signal including edges synchronized with the set signal and the reset signal.

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