Method and apparatus for recording/reproducing data on/from a recording medium
AssigneeLG Electronics Inc.
InventorsJe Jong Lee, Hyung Jun Lim
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Abstract
A method and apparatus for recording/reproducing data is disclosed. The apparatus for recording/reproducing data comprises a diffraction element splitting light diffracted or reflected from a recording medium into a main beam and first and second sub beams, the main beam and the first and second sub beams having no interference from one another; a light-receiving part detecting the main beam and the first and second sub beams; and a controller controlling a position of the diffraction element based on at least one light capacity of the detected beams or the detected position.
Claims15
A method for recording/reproducing data, the method comprising:
- splitting light diffracted or reflected from a recording medium into a main beam and first and second sub beams using a diffraction element, the main beam and the first and second sub beams having no interference from one another;
- detecting the main beam and the first and second sub beams;
- and
- controlling a position of the diffraction element based on at least one of a detected position and light capacity of the detected beams.
An apparatus for recording/reproducing data, the apparatus comprising:
- a diffraction element splitting light diffracted or reflected from a recording medium into a main beam and first and second sub beams, the main beam and the first and second sub beams having no interference from one another;
- a light-receiving part detecting the main beam and the first and second sub beams;
- and
- a controller controlling a position of the diffraction element based on at least one of a detected position and light capacity of the detected beams.
The apparatus as claimed in claim 9, wherein the diffraction element diffracts the first and second sub beams into different directions each other based on the main beam.
Dependencies are inferred from the claim text.