TDMA satellite communication system for transmitting serial subsignal data
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United States of America Patent
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Aug 27, 1996
Issued Date -
N/A
app pub date -
Mar 8, 1994
filing date -
Feb 15, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A TDMA satellite communication system transmits serial subsignal data in addition to main signal data and a unique word through each frame of a multiframe transmission line. A transmitting station includes a serial subsignal data generating unit for generating the serial subsignal data by inverting or noninverting, for each frame, the unique word in accordance with original (subsignal) data synchronous with the unique word, and a multiplexing unit for multiplexing the serial subsignal data and the main signal data to transmit to the receiving station. A receiving station includes a demultiplexing unit for separating the main signal data and the preamble, and a unique word detecting unit for detecting the serial subsignal data by comparing the preamble demultiplexed by the demultiplexing unit with a comparison unique word.
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