Dynamic information storage or retrieval – Binary pulse train information signal – Including sampling or a/d converting
Reexamination Certificate
2006-02-21
2006-02-21
Korzuch, William (Department: 2653)
Dynamic information storage or retrieval
Binary pulse train information signal
Including sampling or a/d converting
C369S059210, C369S059230, C369S124130
Reexamination Certificate
active
07002889
ABSTRACT:
In a data reproduction method and apparatus of the present invention, a Viterbi detection unit is provided, the Viterbi detection unit having a plurality of detectors each providing a first partial response signal with a first constraint length from a first sequence of samples derived from a first readout signal. One of connection and disconnection of the plurality of detectors in the Viterbi detection unit is selected in response to a timing signal, wherein, when the connection of the plurality of detectors is selected, the Viterbi detection unit provides a second partial response signal with a second constraint length from a second sequence of samples derived from a second readout signal, the second constraint length being different from the first constraint length.
REFERENCES:
patent: 4609907 (1986-09-01), Adler et al.
patent: 5602858 (1997-02-01), Kitaori
patent: 5737142 (1998-04-01), Zook
patent: 5757822 (1998-05-01), Fisher et al.
patent: 5781590 (1998-07-01), Shiokawa et al.
patent: 5936558 (1999-08-01), Shafiee et al.
patent: 5949831 (1999-09-01), Coker et al.
patent: 6046874 (2000-04-01), Takahashi
patent: 6111835 (2000-08-01), Honma
patent: 6122120 (2000-09-01), Shimoda
patent: 6148043 (2000-11-01), Fujimoto
patent: 6501610 (2002-12-01), Sugawara et al.
Fujiwara Toru
Taguchi Masakazu
Chu Kim-Kwok
Fujitsu Limited
Greer Burns & Crain Ltd.
Korzuch William
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