Data reproduction apparatus and method capable of...

Details Data reproduction apparatus and method capable of... Data reproduction apparatus and method capable of...

2011-08-16

2011-08-16

Tran, Khai (Department: 2611)

Pulse or digital communications

Equalizers

C375S341000

Reexamination Certificate

active

08000383

ABSTRACT:
A data reproduction apparatus and method to accurately determine an initial level value of a viterbi decoder regardless of whether an operating frequency is in a stable state, and a recording medium having recorded thereon a program for implementing the data reproduction method, the data reproduction apparatus including: a storage unit to store a first input signal; a frequency detection unit to generate a frequency detection signal indicating that a frequency of the first input signal is detected and frequency information of the first input signal based on a second input signal; and a level value determination unit to detect at least one level value for the first input signal by converting a sampling rate for the first input signal based on a ratio between the frequency information and preset frequency information, and to determine the detected level value as an initial level value of the viterbi decoder.

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patent: 2004/0109399 (2004-06-01), Kaneshige
patent: 2005/0270937 (2005-12-01), Lee et al.
patent: 9-306109 (1997-11-01), None
patent: 2004-110090 (2004-12-01), None
International Search Report issued on Apr. 16, 2008 in PCT International Application No. PCT/KR2008/000016.

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