Apparatus and method of testing the frequency response of a cabl

Details Apparatus and method of testing the frequency response of a cabl Apparatus and method of testing the frequency response of a cabl

1985-05-30

1987-10-13

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358139, 358 21V, 358145, 328188, H04N 100, H04N 964, H04N 1700

Patent

active

047002220

ABSTRACT:
Apparatus and method for testing the frequency response of a cable television system by transmitting a test signal of varying frequency over the system. The test signal is transmitted during the blanking intervals between successive frames or lines of the television pictures and at a level comparable to the level of the video signals which carry the information for the pictures.

REFERENCES:
patent: 2733433 (1956-01-01), Morrison
patent: 3651403 (1972-03-01), Fluck, Jr.
patent: 3879749 (1975-04-01), Baum
patent: 3978282 (1976-08-01), Fulton
patent: 4078245 (1978-03-01), Johnson et al.
patent: 4207431 (1980-06-01), McVoy
patent: 4408227 (1983-10-01), Bradley

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