Power line locked image processing systems

Details Power line locked image processing systems Power line locked image processing systems

1984-05-29

1987-09-15

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358111, 358158, 331 20, 331 21, 378 99, 378113, H04N 504, H03L 700

Patent

active

046943390

ABSTRACT:
A line locking system for use with X-ray video imaging equipment comprising: a system oscillator, a divider for frequency dividing the output of the system oscillator to obtain a signal having a frequency that is an integer multiple of the line frequency, a comparator for comparing the phase of the integer multiple signal to the phase of the line signal and means for controlling the oscillator frequency responsive to the output of the comparator.

REFERENCES:
patent: 4468698 (1984-08-01), Kavoussi et al.

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