Information reproducing apparatus and method, and computer program
AssigneePioneer Corporation
InventorsYoshio Sasaki, Shogo Miyanabe, Hiroyuki Uchino
Life of this patent
Estimating the term…
Abstract
An information reproducing apparatus (1) is provided with: an offset adding device (19-1, 19-2) for adding an offset value (OFS) which can be set to be variable, to a read signal (RRF) read from a recording medium (100); a correcting device (18) for correcting waveform distortion occurring in a read signal corresponding to a long mark, of the read signal to which the offset value is added; and a waveform equalizing device (18) for performing a waveform equalization process on the read signal in which the waveform distortion is corrected.
Claims14
An information reproducing apparatus comprising:
- an offset adding device for adding an offset value which can be set to be variable, to a read signal read from a recording medium;
- a correcting device for correcting waveform distortion occurring in a read signal corresponding to at least a long mark, of the read signal to which the offset value is added by said offset adding device;
- and
- a waveform equalizing device for performing a waveform equalization process on the read signal in which the waveform distortion is corrected.
An information reproducing method comprising:
- an offset adding process of adding an offset value which can be set to be variable, to a read signal read from a recording medium;
- a correcting process of correcting waveform distortion occurring in a read signal corresponding to at least a long mark, of the read signal to which the offset value is added by said offset adding process;
- and
- a waveform equalizing process of performing a waveform equalization process on the read signal in which the waveform distortion is corrected.
A computer readable recording medium recording thereon a computer program for reproduction control and for controlling a computer provided in an information reproducing apparatus comprising:
- an offset adding device for adding an offset value which can be set to be variable, to a read signal read from a recording medium;
- a correcting device for correcting waveform distortion occurring in a read signal corresponding to at least a long mark, of the read signal to which the offset value is added by said offset adding device;
- and a waveform equalizing device for performing a waveform equalization process on the read signal in which the waveform distortion is corrected,
- said computer program making the computer function as at least one portion of said offset adding device, said correcting device, and said waveform equalizing device.
Dependencies are inferred from the claim text.