Pulse or digital communications – Synchronizers – Network synchronizing more than two stations
Patent
1993-12-30
1996-01-02
Chin, Stephen
Pulse or digital communications
Synchronizers
Network synchronizing more than two stations
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
Evert Benjamin H.
Vaiden Robert H.
Zimany, Jr. Edward J.
AT&T Corp.
Bocure Tesfaldet
Chin Stephen
Fox James H.
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