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CIRCUIT FOR TRANSMITTING/RECEIVING VIDEO SIGNAL USING POWER LINE

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Title:
CIRCUIT FOR TRANSMITTING/RECEIVING VIDEO SIGNAL USING POWER LINE
Author: RO, CHUNG YOON
Subjects: ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; PICTORIAL COMMUNICATION, e.g. TELEVISION ; TRANSMISSION
Description: A circuit transmitting/receiving an image signal by using a power line is provided to modulate an image signal, which is taken by a camera and amplified by using an oscillation IC, transmit the image signal to an AC power line through a transformer, demodulate the image signal by using an LC tuning frequency, and amplify the image signal to be monitored. A bias module(2) adjusts a bias voltage of an image signal taken by a CCD camera. A voltage drop module(3) converts a power of 12 V into a driving power required for signal processing. A differential amplifier(4) amplifies the image signal through the bias module(2) in a broad band. An oscillation IC(5) modulates the amplified image signal. A transmission circuit converts the modulated image signal into an AC signal to be output to an AC power line(10). A rectifier(11) supplies AC power as operational power. A transformer(12) induces an AC image signal by using an LC tuning frequency. An amplifier(13) amplifies the AC image signal to correct reception sensitivity. An output amplifier(14) amplifies the output of the amplified image signal.
Creation Date: 2007
Language: English
Source: esp@cenet

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