Circuit for the temporary interruption of a sync signal

Details Circuit for the temporary interruption of a sync signal Circuit for the temporary interruption of a sync signal

2006-09-12

2006-09-12

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Clock or pulse waveform generating

C327S299000

Reexamination Certificate

active

07106119

ABSTRACT:
A stop and release circuit of a sync signal, to temporarily suspend or interrupt the sync signal, the input sync signal having a plurality of leading edges and a plurality of trailing edges, the circuit including a first divider that receives the input sync signal and supplies a first signal made up of the sync signal divided by two starting from a leading edge, a second divider that receives the inverse input sync signal and supplies a second signal made up of the sync signal divided by two starting from a trailing edge, an exclusive OR circuit that receives the first signal and the second signal and that supplies an output sync signal, a stop circuit for the first divider and the second divider, and an asynchronous command signal generated by the stop circuit for the temporary interruption of the output sync signal.

REFERENCES:
patent: 4544963 (1985-10-01), Jacoby et al.
patent: 5396337 (1995-03-01), Choi
patent: 5623223 (1997-04-01), Pasqualini
patent: 5668982 (1997-09-01), Davis
patent: 5789953 (1998-08-01), Au et al.
patent: 5900757 (1999-05-01), Aggarwal et al.
patent: 5926044 (1999-07-01), Niimura
patent: 6055619 (2000-04-01), North et al.
patent: 2002/0186787 (2002-12-01), Fischer

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