Method and device for detecting eccentric optical disc
The invention provides a method and device for detecting eccentric optical disc, which can detect eccentricity of an optical disc to be tested on an optical disc drive. The method includes steps of: while the optical disk drive operates under focusing and track-locking conditions, controlling the sp...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention provides a method and device for detecting eccentric optical disc, which can detect eccentricity of an optical disc to be tested on an optical disc drive. The method includes steps of: while the optical disk drive operates under focusing and track-locking conditions, controlling the spindle motor of the optical disc drive to revolve at a predefined rotation speed; then detecting eccentricity of the optical disc under test to obtain an eccentricity value; and comparing the eccentricity value with at least a reference value to determine extent of eccentricity of the optical disc to be tested. |
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