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TRANSMITTING/RECEIVING CIRCUIT OF VIDEOPHONE USING POWER LINE

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Title:
TRANSMITTING/RECEIVING CIRCUIT OF VIDEOPHONE USING POWER LINE
Author: RO, CHUNG YOON
Subjects: ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; PICTORIAL COMMUNICATION, e.g. TELEVISION ; TRANSMISSION
Description: Tx and Rx circuits using a power line in a video phone are provided to transmit and receive clear audio/video signals through a 2-wire power line by delivering video signals, photographed by a camera, to the power line through a transmitting module, displaying them on a monitor through a receiving module, and filtering audio signals, inputted through audio transceivers, through noise-cancelling choke coils. A video signal, photographed by the camera(1) of a video phone, is delivered to a power line(4) through a transmitting module(10). In this case, the video signal is transmitted to the power line together with an audio signal which is inputted through the first noise cancelling choke coil(3) from an outdoor audio transceiver(2). As a receiving module receives the video signal through the power line, the video signal is displayed on a monitor(5). An audio signal, inputted through an indoor audio transceiver, is transmitted through the second noise-cancelling choke coil(6).
Creation Date: 2008
Language: English
Source: esp@cenet

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