Multiplex communications – Wide area network – Packet switching
Patent
1979-12-04
1985-06-11
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
H04J 602
Patent
active
045233098
ABSTRACT:
A TASI system for interconnecting a transmission trunk having a first plurality of communication channels with a defined signal transmission frequency band to a second plurality of telephone communication lines, the second plurality exceeding the first end of the transmission trunk including apparatus for detecting signals on the second plurality and apparatus for assigning each telephone communication line on which signals are present to an available one of the first plurality of communication channels; receiving apparatus at a second end of the transmission link including apparatus for assigning each of the first plurality carrying signals to a corresponding one of the second plurality in accordance with assignment information received from the transmission apparatus; and apparatus for communicating messages including assignment information between the transmission apparatus and the receiving apparatus in said signal transmission band in serial data form along said first plurality of communication channels. A speech detector, echo suppressor, control message transmitter and receiver, signalling processor, RAM switching system, multichannel simultaneous serial synchronous bidirectional message communication and high speed speech detection notification apparatus are also disclosed.
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"Design of a DSI Terminal for Domestic Applications" by Maruta et al., Conference Record of the IEEE 1978 National Telecommunications Conference; Birmingham, Al., Dec. 3-6, 1978, pp. 14.3.1-14.3.5.
Henquin Teodor
Piasecki Joshua
Segev Aharon
Zelinkovsky Reuven
Electronics Corporation of Israel Ltd.
Olms Douglas W.
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