System for coding and/or decoding color television signal includ

Details System for coding and/or decoding color television signal includ System for coding and/or decoding color television signal includ

1976-02-26

1977-07-19

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 902

Patent

active

040372480

ABSTRACT:
A system for coding a composite color television signal and a system for decoding the received coded composite color television signal are disclosed. Coding is achieved by the use of a sampling frequency lower than the Nyquist sampling frequency to provide a direct-coding system in which the composite television signal is sampled at a timing where the subcarriers stand at phases about 180.degree. away from each other in each scanning line and at a timing where the subcarriers stand at phases about 90.degree. away from each other between adjacent scanning lines. In the decoding system, an interspatial signal component lying at a midpoint between every two sampling points is produced from the sampled signals. A composite television signal is produced from the sample signal and the interspatial signal.

REFERENCES:
patent: 3858240 (1974-12-01), Golding et al.
patent: 3921204 (1975-11-01), Thompson

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