Method and apparatus for recording and reproducing recording medium
AssigneeLG Electronics Inc.
InventorDae Young Kim
Life of this patent
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Abstract
A recording/reproducing method and apparatus that is capable of driving a recording medium of land/groove recording system using a wobbling signal without a land/groove identification information. The method and apparatus detects the wobbling signal from a recording medium having wobbled land and groove tracks and then multiplies a frequency of the wobbling signal. In the method and apparatus, various control are performed on a basis of a period and a phase of the multiplied wobble signal, so that it becomes unnecessary to switch the polarity of the wobbling signal for the land/groove identification.
Claims20
A method of recording and reproducing a recording medium, comprising the steps of:
- (A) detecting a wobbling signal from a recording medium having wobbled land and groove tracks;
- (B) multiplying the frequency of the wobbling signal;
- (C) generating a predetermined reference signal based on the multiplied wobble signal;
- and
- (D) responding to the reference signal to perform a recording/reproduction of the recording medium.
An apparatus for recording and reproducing a recording medium, comprising:
- wobbling signal detecting means for detecting a wobbling signal from a recording medium having wobbled land and groove tracks;
- frequency multi plying means for multiplying the frequency of the wobbling signal;
- reference signal generating means for generating a predetermined reference signal based on the wobble signal multiplied by the frequency multiplying means;
- and
- recording/reproducing means for responding to the reference signal to perform a recording/reproduction of the recording medium.
Dependencies are inferred from the claim text.