Look-ahead maximum-likelihood data detector for optical disk...

Details Look-ahead maximum-likelihood data detector for optical disk... Look-ahead maximum-likelihood data detector for optical disk...

2005-08-15

2010-06-29

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Including sampling or a/d converting

C369S059240

Reexamination Certificate

active

07746749

ABSTRACT:
An apparatus and method for look-ahead data detection are provided, the apparatus including a boundary function generator, a boundary decision unit in signal communication with the boundary function generator, a next state generator in signal communication with the boundary decision unit, and a sample value generator in signal communication with the boundary decision unit; and the method including receiving a pickup signal sensed from an optical disc, providing a boundary function value responsive to the pickup signal, comparing the boundary function value with a programmable register value, generating decision outputs responsive to the boundary function value with combinational logic, generating a next state and detected data responsive to the decision outputs, and generating a detected sample value responsive to the decision outputs.

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patent: 6807137 (2004-10-01), Chuang
patent: 2004/0170104 (2004-09-01), Ernest

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