Jitter measuring apparatus

Details Jitter measuring apparatus Jitter measuring apparatus

1978-02-23

1979-06-19

Griffin, Robert L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358148, 324121R, H04N 962

Patent

active

041588576

ABSTRACT:
A jitter measuring apparatus forms a circuit for detecting the jitter component found in an input signal. A jitter indicating line signal is generated in response to the detected jitter component. At least one reference line signal is generated at a time point which deviates from the jitter indicating line signal. The jitter indicating line signal is supplied to a television receiver which displays it as a line which extends vertically and sways horizontally on the picture screen. The reference line signal is supplied to the television receiver where it is displayed as a reference line extending vertically at a reference position, for the jitter indicating line on the picture screen.

REFERENCES:
patent: 3337684 (1967-08-01), Sadler
patent: 3641554 (1972-02-01), Slavin
patent: 3895186 (1975-07-01), Yoshida et al.
patent: 4058826 (1977-11-01), Schneider
Glen Southworth, "A New Method of Television Wave Form Display", 9-66, Journal of the SMPTE.
Southworth, "Use Your TV Set as an Oscilloscope", pp. 66-67, 158, Apr. 1958, Radio & TV News.
Luytgaarden "Videoscope", 12-71, pp. 1234-1242 Elektor.

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