LAMP LINE COMMUNICATION SYSTEM

PROBLEM TO BE SOLVED: To provide a lamp line communication system not to apply radio wave fault to other equipment by reducing a spurious noise without deteriorating a receiving reliability even when a signal level is lowered by the noise of electric equipment connected to a lamp line. SOLUTION: Rec...

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Bibliographic Details
Main Author MITANI SHIGEO
Format Patent
LanguageEnglish
Published 04.04.2003
Edition7
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Summary:PROBLEM TO BE SOLVED: To provide a lamp line communication system not to apply radio wave fault to other equipment by reducing a spurious noise without deteriorating a receiving reliability even when a signal level is lowered by the noise of electric equipment connected to a lamp line. SOLUTION: Received data are demodulated by a band pass filter circuit for extracting a received signal from the lamp line, an amplifier circuit for amplifying the signal, an A/D converter for converting an amplified analog signal to a digital signal and a demodulation means for demodulating converted data, and the received data are transmitted through a communication protocol processing part to high-order communication equipment by a communication interface means.
Bibliography:Application Number: JP20010293829