Signal phase alignment circuitry

Details Signal phase alignment circuitry Signal phase alignment circuitry

1987-08-07

1989-03-21

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358158, H04N 504

Patent

active

048148792

ABSTRACT:
Circuitry for aligning the transition of a clock signal to transitions of a horizontal line synchronizing signal includes a series of delay elements which provide a plurality of clock signal phases. The longest phase delay provided by this circuitry is greater than the period of the clock signal. The clock signal and the delayed clock signal phases are applied to circuitry which selects one clock signal phase, which has a transition occurring within a predetermined time interval of the transition in the horizontal line synchronizing signal. Other circuitry, coupled to this selection circuitry, inhibits the selection of any clock phase having a greater time delay than the selected phase. This prevents the selection of multiple clock phase signals.

REFERENCES:
patent: 3911368 (1975-10-01), Tarczy-Hornoch
patent: 4399416 (1983-08-01), Gillespie
patent: 4500852 (1985-02-01), Phillips
patent: 4600895 (1986-07-01), Landsman
patent: 4617679 (1986-10-01), Brooks
patent: 4635097 (1987-01-01), Tatami
patent: 4675612 (1987-06-01), Adams et al.
patent: 4679005 (1987-07-01), Tatami
patent: 4713621 (1987-12-01), Nakamura et al.

Affiliated with

Also associated with

Rating

Signal phase alignment circuitry does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Signal phase alignment circuitry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal phase alignment circuitry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-481974