Method and structure for synchronization of asynchronous signals

Details Method and structure for synchronization of asynchronous signals Method and structure for synchronization of asynchronous signals

1995-03-24

1996-08-20

Chin, Stephen

Pulse or digital communications

Synchronizers

375360, H04L 700, H04L 702

Patent

active

055486223

ABSTRACT:
According to the present invention, synchronization between two or more asynchronous devices or systems is accomplished according to the clock edges of the asynchronous devices or systems rather synchronization through sampling of the clock frequencies of the asynchronous devices or systems. Because synchronization is dependent on the clock edges rather than frequencies, there are two readily apparent advantages. First, it is no longer necessary to sample data in order to determine frequencies of the asynchronous devices or systems. Second, the data transmitted from a transmitter device, such as a microprocessor, to a receiver device, such as a printer, can be assured of being stable data before being received by the receiver device. Because the data received by the receiver device is not in transition or otherwise meta-stable, it is valid, uncorrupted data.

REFERENCES:
patent: 4800296 (1989-01-01), Ovens et al.
patent: 4929850 (1990-05-01), Breuninger
patent: 4979190 (1990-12-01), Sager et al.
patent: 5303350 (1994-04-01), Yu et al.
patent: 5387825 (1995-02-01), Cantrell et al.

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