Circuit to independently adjust rise and fall edge timing of...

Details Circuit to independently adjust rise and fall edge timing of... Circuit to independently adjust rise and fall edge timing of...

2005-03-01

2005-03-01

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By pulse width or spacing

C327S176000

Reexamination Certificate

active

06861877

ABSTRACT:
A circuit to independently control rise and fall delay edge timing of a signal is achieved. The circuit comprises, first, a first delay element and a second delay element. Each of the delay elements has an input and an output. Each of the inputs is coupled to a common, input signal. Next, an AND function, having two inputs and one output, is used. One of the AND inputs is coupled to the input signal, and another of the AND inputs is coupled to the first delay element output. The AND function output comprises a rise-delayed signal having a controlled rising edge delay between a rising edge of the input signal and a rising edge of the rise-delay signal. Finally, an OR function, having two inputs and one output, is used. One of the OR inputs is coupled to the input signal, and another of the OR inputs is coupled to the second delay element output. The OR function output comprises a fall-delayed signal having a controlled falling edge delay between a falling edge of the input signal and a falling edge of the fall-delay signal. A means of combining the rise-delayed signal and the fall-delayed signal into a common, delayed output signal is also disclosed.

REFERENCES:
patent: 6069511 (2000-05-01), Mohan
patent: 6222403 (2001-04-01), Mitsuda
patent: 6249150 (2001-06-01), Matsui
patent: 6294939 (2001-09-01), McClure
patent: 6313681 (2001-11-01), Yoshikawa
patent: 6433603 (2002-08-01), Singh et al.

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