Circuit arrangement for frequency conversion of a color signal

Details Circuit arrangement for frequency conversion of a color signal Circuit arrangement for frequency conversion of a color signal

1997-07-03

1999-08-24

Lee, Michael H.

Television

Format conversion

Specified chrominance processing

348457, H04N 701, H04N 1120

Patent

active

059431008

ABSTRACT:
For purposes of simple construction and universal application, a circuit arrangement for frequency conversion of a color signal to a second carrier frequency, this color signal being present in picture lines and including a color burst and a chrominance information signal modulated on a chrominance sub-carrier of the first carrier frequency, the circuit arrangement being switchable in a mode for conjugate-complex formation in which it generates an output signal in which, additionally to the frequency conversion, the color signal has a phase position in accordance with the PAL standard, which alternates from picture line to picture line, and which color signal is present in a conjugate-complex form in every second picture line, is characterized in that

REFERENCES:
patent: 4314273 (1982-02-01), Amery
patent: 4568963 (1986-02-01), Sakai et al.
patent: 4573086 (1986-02-01), Sakai et al.

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