1975-12-24
1977-10-04
Stewart, David L.
179 15A, H04J 308
Patent
active
040525678
ABSTRACT:
A multiplexer receiver terminator is disclosed for connection to a multiplexer receiver in a system having a plurality of multiplexer receivers connected on a common communication line. Each of the multiplexer receivers is assigned a time period for reception relative to a multiplexer time clock. The improvement includes a counter circuit connected to the multiplexer time clock for providing a counter output upon the clock counter counting between two preselected clock counts which correspond to the time period assigned for reception of the multiplexer receiver. A line receiver is connected to the communication line for providing an output upon detecting a predetermined period of signal absence on the communication line. The line receiver output is connected to the counter for resetting the counter after the predetermined period of signal absence. The counter circuit is connected to the multiplexer receiver for enabling reception from the communication line only during an output of the counter circuit. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.
REFERENCES:
patent: 3588365 (1971-06-01), McNeilly
patent: 3723658 (1973-03-01), Huebner
patent: 3737677 (1973-06-01), Huebner
patent: 3757050 (1973-09-01), Mizote
patent: 3804986 (1974-04-01), Wakamatsu
patent: 3814861 (1974-06-01), Robbins
patent: 3870825 (1975-03-01), Roberts
D.D.I. Communications, Inc.
Stewart David L.
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