Patent
1978-05-25
1980-02-05
Konick, Bernard
179 15A, H04J 300
Patent
active
041874013
ABSTRACT:
In a time division multiplex network the channel assignment is controlled by assigning each channel, in a channel-by-channel sequence, to each subscriber pair that are communicating or wish to communicate. The subscriber address-data of the addressee or the addressor of each so-assigned channel is stored in a circulating read/write memory with a reset word stored in a memory location following the last memory location containing subscriber address-data. The memory locations are addressed in a successive manner in response to an incrementing clock count and the subscriber address-data, as they are read out from the successively addressed memory locations, are used to provide gating pulses to the respective subscriber modulator/demodulators, and the reset word, when it is read out, resets the memory to repeat the memory read-out cycle. The number of occupied memory locations varies in accordance with the traffic demands to provide a high efficiency service per unit time and high modulation/demodulation qualities during periods of low traffic.
REFERENCES:
patent: 3641272 (1972-02-01), Pinet et al.
patent: 3963870 (1976-06-01), Conder et al.
Aiphone Co., Ltd.
Konick Bernard
Popek Joseph A.
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