Multiplex communications – Wide area network – Packet switching
Patent
1981-04-23
1983-05-03
Robinson, Thomas A.
Multiplex communications
Wide area network
Packet switching
H04M 356, G06F 700, H04Q 1104
Patent
active
043822959
ABSTRACT:
A time slot interchanger is disclosed for selecting and buffering digital signals between buses. The arrangement is particularly useful in forming conferences in a distributed digital time division system. In one embodiment, a clock is used to generate time signals corresponding to time slots of the first bus. These signals are sequentially provided to an associative memory and when a match occurs between the provided signal and a priorly stored time slot identity, an enable signal is provided. The enable signal has a time identity with a first bus time slot and a physical identity with a particular second bus time slot. The enable signal is used to gate into a second memory the time slot signal associated with the time identity at the storage location in the second memory corresponding with the particular time slot of the second bus associated with the enable signal. The signal samples are then sequentially removed from the second memory.
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Chapter 4: "Telephony and Signal Processing," Intel Corp., 1980, pp. 0207-0223.
Moffitt Bryan S.
Ross Alexander R.
Bell Telephone Laboratories Incorporated
Robinson Thomas A.
Tannenbaum David H.
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