Semiconductor circuit

Details Semiconductor circuit Semiconductor circuit

2007-03-06

2007-03-06

Lam, Tuan T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By pulse width or spacing

C327S552000, C327S558000

Reexamination Certificate

active

11006692

ABSTRACT:
The present invention provides a semiconductor circuit capable of effectively applying a filter function to both of L-level noise superimposed during originally H signal periods and H-level noise superimposed during originally L signal periods. An input signal branches off into two and one of them is inputted through signal inverting means to a first delay circuit including a first capacitor. The other is inputted to a second delay circuit including a second capacitor. An output signal from the first delay circuit and an output signal from the second delay circuit are inputted to separate input terminals of a flip-flop.

REFERENCES:
patent: 4912420 (1990-03-01), Parnell
patent: 5120988 (1992-06-01), Matsuki
patent: 5742183 (1998-04-01), Kuroda
patent: 5834968 (1998-11-01), Imamiya
patent: 5973982 (1999-10-01), Suyama et al.
patent: 6507221 (2003-01-01), La Rosa
patent: 6940326 (2005-09-01), Chen et al.
patent: 07-095022 (1995-04-01), None

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