Information recording medium, information reproducing apparatus and information reproducing method
AssigneeNEC Corporation
InventorHiromi Honma
Life of this patent
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Abstract
A data reproducing apparatus includes a data pulse generating section and a detector section which converts a readout signal reproduced from a data recording medium into a binary data in synchronization with the readout signal to output the binary data as a pulsed output signal. The detector section outputs a determination result indicating whether or not the data pulse generating section is in asynchronization, to the data pulse generating section based on the pulsed output signal. When the determination result indicates the asynchronization, the data pulse generating section sets a predetermined fixed operation parameter and carries out a recovering operation from the asynchronization.
Claims22
1-28. (canceled)
A data reproducing apparatus comprising:
- a data pulse generating section configured to convert a readout signal reproduced from a data recording medium into a binary data in synchronization with said readout signal and to output the binary data as a pulsed output signal;
- and
- a detector section configured to output a determination result indicating whether or not said data pulse generating section is in asynchronization, to said data pulse generating section based on said pulsed output signal,
- wherein when the determination result indicates the asynchronization, said data pulse generating section sets a predetermined fixed operation parameter and carries out a recovering operation from the asynchronization.
A data reproducing method comprising:
- converting a readout signal reproduced from an data recording medium into a binary data in synchronization with the readout signal, and outputting the binary data as a pulsed output signal;
- generating a determination result indicating whether or not said readout signal is in asynchronization, based on the pulsed output signal;
- performing a recovering operation from the asynchronization by setting a predetermined fixed operation parameter when the determination result indicates the asynchronization.
Dependencies are inferred from the claim text.