Circuit and method for detecting and correcting data...

Details Circuit and method for detecting and correcting data... Circuit and method for detecting and correcting data...

2005-04-12

2005-04-12

Bocure, Tesfaldet (Department: 2631)

Pulse or digital communications

Synchronizers

Synchronizing the sampling time of digital data

C370S503000

Reexamination Certificate

active

06879650

ABSTRACT:
In a communications environment wherein data terminal equipment (DTE) transmits a data signal to data communication equipment (DCE) synchronously with a clocking signal provided by the DCE to the DTE, a circuit and method are configured to automatically detect a condition in which the data signal is sampled near a transition in the data signal, which may result in system clocking errors. Upon detecting this condition, the clocking signal used to sample the data signal is automatically inverted relative to the data signal to ensure that that the data signal is sampled near the midpoint between transitions in the data signal. In this manner, data clocking errors may be significantly reduced.

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patent: 5768283 (1998-06-01), Chaney
patent: 5870446 (1999-02-01), Mc Mahan et al.
patent: 6232955 (2001-05-01), Guttag et al.

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