초록 ▼

A data multiplexing network is described which multiplexes a plurality of asynchronous data channels with an asynchronous data stream representing compressed voice signals and/or facsimile signals onto a single synchronous data packet stream. The single synchronous data packet stream is then transmi

A data multiplexing network is described which multiplexes a plurality of asynchronous data channels with an asynchronous data stream representing compressed voice signals and/or facsimile signals onto a single synchronous data packet stream. The single synchronous data packet stream is then transmitted by a high speed statistical multiplexer over a composite link to a second site using a modified high-level synchronous data link control protocol with an overlay of a priority statistical multiplexing algorithm. The asynchronous data channels and the compressed voice channel and/or facsimile signals are demultiplexed and reconstructed for sending to other asynchronous computer terminals and to a standard telephone or facsimile analog port at the second site, respectively. PBX trunk interfaces are also provided to allow PBX's to share the composite link between sites.

대표청구항 ▼

[ We claim:] [1.] A multiplexed information network, comprising:a local multiplexer having a local telephone line interface, a local asynchronous data port, a local data processor connected for receiving asynchronous data from the local asynchronous data port and for placing the asynchronous data in

[ We claim:] [1.] A multiplexed information network, comprising:a local multiplexer having a local telephone line interface, a local asynchronous data port, a local data processor connected for receiving asynchronous data from the local asynchronous data port and for placing the asynchronous data into asynchronous data packets each having separate headers, a local voice channel circuit means connected for receiving voice signals from the local telephone line interface and for digitizing and compressing the voice signals into compressed voice packets each having separate headers, the local data processor further operable for receiving the compressed voice packets from the voice channel circuit means and for multiplexing the asynchronous data packets and the compressed voice packets into a data stream, and the local data processor further connected to a local line interface for transmitting the data stream;a remote multiplexer having a remote telephone line interface, a remote asynchronous data port, a remote data processor connected to a remote line interface for receiving the data stream, the remote data processor operable for demultiplexing the data stream to reproduce the asynchronous data packets and the compressed voice packets and for sending the compressed voice packets to a remote voice channel circuit means, the remote data processor further operable for removing the asynchronous data from the asynchronous data packets and for sending the asynchronous data to the remote asynchronous data port, the remote voice channel circuit means operable for decompressing and decoding the compressed voice packets to reproduce the voice signals and connected for sending the voice signals to the remote telephone line interface; anda composite link connected between the local line interface of the local multiplexer and the remote line interface of the remote multiplexer.