Method and apparatus for modulating video signals

Details Method and apparatus for modulating video signals Method and apparatus for modulating video signals

2005-10-18

2005-10-18

Hsia, Sherrie (Department: 2614)

Television

Television transmitter circuitry

Modulator

C348S727000, C348S712000, C348S713000

Reexamination Certificate

active

06956622

ABSTRACT:
A luminance component of a video signal is modulated in a first frequency band. A chrominance component of the video signal is modulated in a second frequency band. The modulated luminance component and the modulated chrominance component are then transmitted across a communication link.

REFERENCES:
patent: RE33535 (1991-02-01), Cooper
patent: 5526129 (1996-06-01), Ko
patent: 5877820 (1999-03-01), Yamamuro et al.
patent: 2112245 (1983-07-01), None
Kamangar, et al: “Adaptive Coding Of NTSC Component Video Signals”; CH1539-6/80/0000-0181; 1980 IEEE; pp. 36.4.1-36.4.6.
Savon, Karl; “A TV modulator IC from National that produces a composite video modulated RF signal”; Radio-Electronics; vol. 49, No. 5; pp. 84-85; (May 1978).
Maegele, Manfred; “Digital Transmission of Two Television Sound Channels in Horizontal Blanking”; Journal of the SMPTE, vol. 84; Feb. 1975; pp. 68-70.

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