Method and apparatus for generating active pulse of desired pola

Details Method and apparatus for generating active pulse of desired pola Method and apparatus for generating active pulse of desired pola

1997-09-23

1999-09-07

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By pulse width or spacing

327 31, 327165, H03K 501

Patent

active

059492554

ABSTRACT:
A method for generating an output signal of desired polarity from an input periodical signal of frequency f1 via a clock signal of frequency f2, wherein f2 is substantially greater than f1, is provided. The input periodical signal includes a cyclic duration T1 of a first logic state and duration T2 of a second logic state. The method includes the steps of (1) counting pulses N of the clock signal during T1; (2) counting pulses M of the clock signal during T2; (3) generating the output signal by inverting the input periodical signal as M being larger than N and an activated state of select signal are determined.

REFERENCES:
patent: 5621758 (1997-04-01), Suzuki et al.
patent: 5706036 (1998-01-01), Lam et al.

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