TELEMETRY INTERFACE SYSTEM TO TRANSMIT VARIABLE-RATE TELEMETRY DATA THROUGH A 1.544 MBPS DIGITAL SERVICE CHANNEL

摘要

This invention provides an improved method and apparatus able to transmit and receive variable-rate telemetry data from 5 Kbps to 1 Mbps through a standard fixed rate T1 communication channel. There is disclosed a method and apparatus for encoding, at a transmitting unit, a variable-rate continuous bit stream of data on a fixed rate digital service channel and a method and apparatus for decoding, at a receiving unit, data and bit rate information from the encoded signal in order to reproduce the original bit stream and data rate entered in the transmitting unit.