Time division system for synchronizing functions controlled by d

Details Time division system for synchronizing functions controlled by d Time division system for synchronizing functions controlled by d

1976-07-26

1978-02-28

Brown, Thomas W.

H04J 306

Patent

active

040769640

ABSTRACT:
Synchronization control circuit for a time divisional data transmitting and receiving system. Data is received at an exchange at a clock rate determined by the transmitting station and is stored in memory at that rate. Read-out of data from the memory is based on the internal clock rate of the exchange. Since only one operation -- read or write -- can occur on a memory at any one time and the operations are controlled at rates which may be out of synchronism with one another, conflicts may occur. To prevent such conflicts, a time shift of predetermined duration is inserted between operations when the out-of-synchronism interval is less than a predetermined time interval.

REFERENCES:
patent: 3729717 (1973-04-01), de Koe et al.
patent: 3798378 (1974-03-01), Epstein
patent: 3808368 (1974-04-01), Pitroda et al.
patent: 3809820 (1974-05-01), Sullivan
patent: 3867579 (1975-02-01), Colton et al.
patent: 3920918 (1975-11-01), Thomas
patent: 3959588 (1976-05-01), Kelly et al.
patent: 3970796 (1976-07-01), Gyurki

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