Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2007-05-22
2007-05-22
Edun, Muhammad (Department: 2627)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
C369S124010, C369S044340
Reexamination Certificate
active
10761795
ABSTRACT:
The invention relates to an electronic circuit for decoding a read signal from an optical storage medium, the electronic circuit comprising a limit equalizer for amplification of high frequency read signal components without substantially increasing inter-symbol interference, a Viterbi detector being coupled to an output of the limit equalizer for providing the decoded read signal, a coefficient adaptation circuit for tuning the limit equalizer to a partial response target.
REFERENCES:
patent: 6198587 (2001-03-01), Hayashi
patent: 00/22620 (2000-04-01), None
25 GB Read-Only Disk System Using The Two-Dimensional Equalizer Yoshimi Tomita et al. Jpn. J. Appl. Phys. vol. 40 (2001) pp. 1716-1722.
New Equalizer To Improve Signal-to-Noise Ration Shogo Mianba et al. Jpn. J. Appl. Phys. vol. 38 (1999) pp. 1715-1719.
Signal Processing For 15/27 GB Read-Only Disk System Fumihiko Yokogawa et al. Jpn J. Apply. Phys. vol. 39 (2000) pp. 819-823.
Davenport Francis A.
Edun Muhammad
Fried Harvey D.
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