Synchronization of multiple transmit/receive devices

Pulse or digital communications – Synchronizers – Network synchronizing more than two stations

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3701051, H04L 700

Patent

active

054815746

ABSTRACT:
CODECs and various other types of communication devices require timing information to enable them to transmit and receive digital information at the proper time. In the case of multiple CODECs on a single integrated circuit, this has typically required devoting terminals to provide separate transmit and receive frame synchronization pulses for each CODEC. Alternatively, a microprocessor interface may be included so that internal registers can be loaded with transmit and receive timing information. However, that approach limits timing flexibility. In the present invention, a "frame synchronization separation pulse" (FSEP) provides the separation in time between transmit and receive synchronization pulses. In this manner, the number of integrated circuit terminals required for synchronization may be reduced.

REFERENCES:
patent: 3632882 (1972-01-01), Ciecierski et al.
patent: 3989889 (1976-11-01), Mendrala
patent: 4234956 (1980-11-01), Adderley et al.
patent: 4606023 (1986-08-01), Dragoo

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