Error correction method in full response read channels
AssigneeAcer Laboratories Inc.
InventorJia-Horng Shieh
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Abstract
The present invention provides an error correction method that is used in full response read channels. This method includes the steps of: obtaining a read signal from a storage medium and converting the read signal into channel bits that are recorded in the storage medium, such as a DVD disk, in the NRZI format; and using the Viterbi detector to determine whether bit state transitions in the channel bits occur within a predetermined run-lengths of the RLL codes. If transitions occur within the predetermined run-lengths, then the values of the bits with state transitions are corrected.
Claims19
An error correction method used in full response read channels, which comprises the steps of:
- obtaining a read signal from a storage medium and converting the read signal into channel bits in an NRZI (Non-Return-to-Zero-Inverse) format;
- and
- utilizing a Viterbi detector to determine whether any state transition of the channel bit occurs within a predetermined run-lengths of the RLL codes.
An error correction method used in full response read channels, which comprises the steps of:
- obtaining a read signal from a storage medium and converting the read signal into channel bits;
- and
- utilizing the Viterbi detector to determine whether any state transition of the channel bits occurs within a predetermined run-lengths of the RLL codes;
Dependencies are inferred from the claim text.