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7369625 |
Apparatus and method for slicing RF signal and compensating for the slice level of RF signal in disk drive
An apparatus and method for slicing an RF signal and compensating for the slice level of an RF signal reproduced from a disk, which minimizes a block error rate by optimizing the slice level of the...
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7315499 |
Optical disk apparatus, tilt compensation method, program, and information recording medium
An optical disk apparatus includes a tilt detection unit detecting the tilt value of an optical disk medium with respect to an optical system. A tilt compensation unit compensates for the tilt of...
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7286447 |
Recording and/or reproducing apparatus and method of controlling the same
A recording and/or reproducing apparatus and a method of controlling the same. The method of controlling the apparatus for recording information in or reproducing information from a disc having a...
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7274641 |
Replay or recording appliance for optical recording media having an inclination control system
The invention relates to a method and an arrangement for a replay or recording appliance for optical recording media having an inclination control system for vertical alignment of the scanning beam...
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7242653 |
Optical disc apparatus capable of detecting recording characteristics based on a predetermined signal prerecorded and reproduced
An optical disk drive apparatus for recording a predetermined signal on an optical disk by varying predetermined recording conditions and detecting recording characteristics based on a reproduction...
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7239603 |
Recording medium with judging area for track area identification based on wobbling polarity
A recording and reproducing apparatus of the present invention includes a photo-detector having light receiving sections divided along the track direction of an optical disk. The apparatus also...
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7212486 |
Optical disk device setting a gain of an amplifier so that a peak value and a bottom value of wobble signal components coincide
In this optical disk device, a reflected light of a light beam reflected from a pre-pit-formed side of a track wobbled on a disk is detected as a first detection signal. A reflected light of the...
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7187636 |
Method and apparatus for correcting tilt of light beam to optical recording medium
A tilt of a light beam to be radiated onto an information recording disk is corrected without using a dedicated tilt sensor. The correction is performed based on the characteristic that an offset...
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7187632 |
Optical disk device and method of adjusting tilt control amount
In a state in which an optical disk having a warping amount equal to or smaller than a predetermined amount is attached to a spindle motor, an output of tilt detection result is stored as a...
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7133340 |
Optical disc apparatus
An optical disc apparatus in which the inclination of an optical axis of laser light relative to an optical disc is adjusted. When data is recorded, laser light is irradiated at recording power in...
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6788627 |
Optical recording and reproducing apparatus, tilt correction method, tilt correction program and medium
Tilt correction means is operated so that the degree of modulation represented by the ratio of the amount of the detected reflected light from the groove areas G and the amount of the detected...
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6680887 |
Optical disk apparatus and PLL circuit
This invention relates to an optical disk apparatus for optically reproducing information recorded on an information carrier by an optical beam emitted by a light source, the optical disk apparatus...
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