Modem with improved timing recovery using equalized data

Details Modem with improved timing recovery using equalized data Modem with improved timing recovery using equalized data

1987-11-25

1989-02-14

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375106, 328155, H04L 700, H04B 304

Patent

active

048051918

ABSTRACT:
In a digital data receiver, it is desirable to use the equalized data for deriving time synchronization information. This invention minimizes timing contention between an equalizer operating at a T/2 rate and a timing recovery circuit which utilizes the output of the equalizer. An interpolator interpolates T1 and T2 data samples from the equalizer and provides data signals R and S equally spaced relative to the peak baud amplitude which can be easily processed by the timing recovery circuit.

REFERENCES:
patent: 3697689 (1972-10-01), Gibson
patent: 3962637 (1976-06-01), Motley et al.
patent: 4334313 (1982-06-01), Gitlin et al.

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