Television systems

Details Television systems Television systems

1975-10-28

1980-07-29

Griffin, Robert L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 10, H04N 702

Patent

active

042153670

ABSTRACT:
Apparatus for deriving a television quality parameter from an insertion test signal line which is repeated at regular intervals during field blanking periods of a television signal comprises a sampling system operable, when actuated, to provide a digital amplitude signal representing the instantaneous amplitude of the test line, controllable actuating means for actuating the sampling system, a computer programed

REFERENCES:
patent: 3792195 (1974-02-01), Wilson
patent: 3989891 (1976-11-01), Freestone
Ing. P. D'Amato, Intermodulation Distortion Measurement, May 11, 1970, pp. 199-207.

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