Equalization and interpolated timing recovery for a partial...

Details Equalization and interpolated timing recovery for a partial... Equalization and interpolated timing recovery for a partial...

2002-07-02

2008-05-27

Deppe, Betsy L. (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C375S232000, C375S340000

Reexamination Certificate

active

07379516

ABSTRACT:
A receiver in a data read channel has an input terminal for receiving an input signal provided by a transmitter of the data read channel, and produces an output signal at an output terminal. The receiver includes a finite impulse response (FIR) filter coupled to the input terminal and having filter coefficients capable of being adapted, an interpolated timing-recovery circuit coupled to an output of the FIR filter, the timing-recovery circuit having an output signal coupled to the output terminal of the receiver, and a timer circuit coupled to the output terminal and feedback connected to the timing-recovery circuit, wherein the coefficients of the timing-recovery circuit are dynamically adapted using a cost weighted function through a signal power spectrum of the data read channel.

REFERENCES:
patent: 5901010 (1999-05-01), Glover et al.
patent: 5966415 (1999-10-01), Bliss et al.
patent: 6208481 (2001-03-01), Behrens et al.
patent: 6671244 (2003-12-01), Honma
Zi-Ning Wu, et al., “A MMSE interpolated timing recovery scheme for the magnetic recording channel”, COMMUNICATIONS, 1997, ICC '97 Montreal, Towards the Knowledge Millenium, 1997 IEEE International Conference on Montreal, Que., Canada, Jun. 8-12, 1997, New York, NY, Jun. 8, 1997, pp. 1625-1629, XP010227027, ISBN: 0-7803-3925-8.
European Patent Office, European Search Report, Application No. EP 01 83 0448, Jan. 22, 2002, 2 pages.

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