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AssigneePioneer Corporation
InventorsShogo Miyanabe, Hiroki Kuribayashi
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The present invention provides an information reproducing apparatus capable of preventing occurrence of erroneous detection as if a recording pit longer than the longest pit in the standard exists on an optical disk even in the case where the difference between frequency of a reproduction signal and frequency of a reproduction clock signal becomes large. When the difference between frequency of a detection signal Sp detected from an optical disk DK and frequency of a reproduction clock signal Scl becomes large, for example, the gain of a high frequency band corresponding to a recording pit length in the range of 2T to 4T is emphasized more than normal one by an equalizer 2, and the resultant is used for detecting a longest-pit-length error.
An information reproducing apparatus for decoding and reproducing information recorded on a recording medium by using a detection signal detected from the recording medium while compensating the difference between frequency of the detection signal and frequency of a reproduction reference signal as a reference used at the time of reproducing the information by using the detection signal, comprising:
An information reproducing method for decoding and reproducing information recorded on a recording medium by using a detection signal detected from the recording medium while compensating the difference between frequency of the detection signal and frequency of a reproduction reference signal as a reference used at the time of reproducing the information by using the detection signal, comprising:
(canceled)
An information recording medium where an information reproducing program is computer-readably recorded,
Dependencies are inferred from the claim text.