Method and apparatus for data transmission in channel modem for satellite communication system

摘要

The present invention provides a channel modem for a satellite communication system that detects a message synchronization signal of data applied to a channel modem in a burst mode and transmits predetermined provisional data to an input data string when a message synchronization signal is not detected. A data processing method and apparatus thereof, comprising: information data having the same size as the information data size in a state where a channel modem for a satellite communication system that performs a modulation / demodulation function on input data is set to a burst mode for transmitting and receiving voice data. Information transmitted based on the message synchronization signal detected in the message synchronization signal detection step of detecting the message synchronization signal of the data string inputted to the demultiplexer of the channel modem. A data processing step of demultiplexing the data, and the message synchronization If the call detecting step, the message is not a synchronization signal is detected, characterized in that is configured to read out the stored home security data including home security data transmission step of transmitting information data, instead.