Television – Image signal processing circuitry specific to television – Hue control
Reexamination Certificate
2005-05-03
2005-05-03
Lee, Michael (Department: 2614)
Television
Image signal processing circuitry specific to television
Hue control
C348S649000
Reexamination Certificate
active
06888579
ABSTRACT:
A method and system are provided for controlling tint of component video signals. The system includes a first input for receiving a first component video signal; a second input for receiving a second component video signal; circuitry including a first differential amplifier and a second differential amplifier for receiving the first and second component video signals from the first and second inputs, respectively; a first output connected to the circuitry for outputting a first tint control adjustment signal for the first component video signal; and a second output connected to the circuitry for outputting a second tint control adjustment signal for the second component video signal. The first outputted signal is represented as V+kU−2ckU and the second outputted signal is represented as U−kV+2ckV, where V represents the first component video signal, U represents the second component video signal, k is a constant, and c is a value greater than or equal to zero and less than or equal to one.
REFERENCES:
patent: 4122491 (1978-10-01), Yamaguchi et al.
patent: 4216493 (1980-08-01), Hosoya
Goodman Edward W.
Koninklijke Philips Electronics , N.V.
Lee Michael
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