Precise multiplexed transmission and reception of analog and digital data through a narrow-band channel

A communication system for transferring analog and digital data through an analog data channel, said system comprising:

• (a) means for multiplexing analog data to provide a multiplexed analog data stream;
• (b) means for compressing said analog data to provide a series of compressed analog data segments, said compressing means time compressing said analog data to periodically provide each of said compressed analog data segments, said compressing means providing said compressed analog data segments to said multiplexing means;
• and
• (c) means for analog encoding said digital data, said analog encoding means including synchronization data with the resultant analog encoded digital data, said analog encoding means providing said analog encoded digital data to said multiplexing means
• wherein said multiplexing means time multiplexes said analog encoded digital data between said compressed analog data segments.

A transceiver for transferring data between a host and a data channel, said transceiver comprising:

• (a) compression means for compressing analog data received from said host into compressed analog data segments and for decompressing compressed analog data segments prior to transfer to said host;
• (b) control means for analog encoding digital data to provide analog encoded digital data segments, said control means providing said analog encoded digital data segments with synchronization data;
• and
• (c) multiplexer means for multiplexing said compressed analog data segments from said compressed means with said analog encoded digital data segments to provide a data channel data stream and, responsive to said synchronization data, for demultiplexing said data channel data stream to provide said compressed data segments to said compression means for decompression.