| 摘要 |
<p>A digital multiplexer accommodates a large number of information signal channels per digital transmission channelthrough use of an improved statistical coding technique and successive frame, the technique being based on channel designation and channel code permutation. The information signals are encoded into transmission code words, the code words are ordered into successive transmission frames and the transmission frames are sent over a communications highway to a remote location. An executive conferencing arrangement is also provided which utilizes a difference signal technique to set up a conferencing arrangement wherein each communications channel carrying analog information is connected to each communications channel not carrying analog information.</p> |
