Radio frequency modulator
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsJong Lee, Chang Nam, Ryo Mang
Life of this patent
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Abstract
Disclosed herein is a Radio Frequency (RF) modulator. The RF modulator includes a Chrominance-to-Luminance (C/L) delay compensation unit for receiving a video signal and compensating for a time delay between the chrominance and luminance signals of the video signal, and a modulation unit for receiving the video signal, which is compensated for by the C/L delay compensation unit, and an audio signal and converting the video and audio signal into a preset frequency-band RE signal. The C/L delay compensation unit and the modulation unit are packaged in a single package.
Claims9
A Radio Frequency (RF) modulator, comprising:
- a Chrominance-to-Luminance (C/L) delay compensation unit for compensating for a time delay between chrominance and luminance signals of a video signal;
- and
- a modulation unit for receiving the video signal, which is compensated for by the C/L delay compensation unit, and an audio signal and converting the video and audio signals into a preset frequency-band RF signal;
- wherein the C/L delay compensation unit and the modulation unit are packaged in a single package.
An RF modulator, comprising:
- first and second C/L delay compensation units for compensating for time delays between chrominance and luminance signals of video signals of first and second different channels, respectively;
- first and second modulation units for receiving the two video signals, which are output from the first and second C/L delay compensation units, and audio signals of the first and second different channels, and converting the input video and audio signals into preset different frequency-band RF signals;
- and
- a combining unit for combining the different frequency-band RE signals, which are output from the first and second modulation units, into a single signal;
- wherein the first and second C/L delay compensation units, the first and second modulation units and the combining unit are packaged in a single package.
An RF modulator, comprising:
- first and second C/L delay compensation units for compensating for time delays between chrominance and luminance signals of video signals of first and second different channels, respectively;
- first and second MTS units for encoding right and left audio signals of the first channel into a single audio signal and right and left audio signals of the second channel into a single audio signal, respectively, so as to implement stereo sound;
- first and second modulation units for receiving the two video signals from the first and second C/L delay compensation units and the two MTS signals from the first and second MTS units, and converting the input video and audio signals into preset different frequency-band RF signals;
- a combining unit for combining the two RF signals, which are output from the first and second modulation units, into a single RF signal;
- an attenuation unit for attenuating a level of the RF signal, which is output from the combining unit, according to a control voltage of the first modulation unit;
- and
- an amplification unit for amplifying the RF signal that is level-adjusted by the attenuation unit;
- wherein the first and second C/L delay compensation units, the first and second MTS units, the first and second modulation units, the combining unit, the attenuation unit, and the amplification unit are packaged in a single package.
Dependencies are inferred from the claim text.