Circuit for detecting phase error of color burst signal

Details Circuit for detecting phase error of color burst signal Circuit for detecting phase error of color burst signal

1992-06-04

1993-10-05

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 20, H04N 945

Patent

active

052510140

ABSTRACT:
In a phase error detector for detecting a phase error .theta. of an input color burst signal from a phase of a reference signal from sin .theta. component and cos .theta. component, if either one of the sin .theta. component and cos .theta. component requires M bits for its expression, the both values are divided by a same value to shift in bits to be expressed in N bits (N<M), thereby preventing the subsequent circuit from increasing in scale.

REFERENCES:
patent: 4393413 (1983-07-01), Kaneko
patent: 4636836 (1987-01-01), Steckler et al.
patent: 4675724 (1987-06-01), Wagner
patent: 4719505 (1988-01-01), Katznelson
patent: 4797730 (1989-01-01), Smith

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