Detecting apparatus for detecting statuses of optical disc and method thereof
AssigneeMediatek Inc.
InventorsYu-Hsuan Lin, Ching-Ning Chiu
Life of this patent
Estimating the term…
Abstract
Disclosed are detecting apparatus for detecting statuses of an optical disc and methods thereof, which can avoid or reduce erroneous status decisions at the edge of a blank region. The detecting apparatus includes a blank detector, for detecting a blank region of the optical disc to generate a blank detection signal; an edge detector, for detecting a transition of the blank detection signal to generate an edge detection signal; a control circuit, in response to the edge detection signal for outputting control signals; and a defect detector in response to the control signals for detecting defect region of the optical disc to generate a defect decision signal.
Claims22
A detecting apparatus for detecting statuses of an optical disc, comprising:
- a blank detector, for detecting a blank region of the optical disc to generate a blank detection signal;
- an edge detector, coupled to the blank detector, for detecting a transition of the blank detection signal to generate an edge detection signal;
- a control circuit, in response to the edge detection signal for outputting a first control signal;
- and
- a defect detector in response to the first control signal for detecting defect region of the optical disc to generate a defect decision signal.
A detecting method for detecting statuses of an optical disc, comprising:
- detecting blank regions of the optical disc to generate a blank detection signal;
- detecting a transition of the blank detection signal to generate a edge detection signal;
- generating a first control signal according to the edge detection signal;
- and
- detecting defect regions of the optical disc in response to the first control signal to generate a defect decision signal.
A detecting method for detecting statuses of an optical disc, comprising:
- detecting defect regions of the optical disc to generate a defect decision signal;
- detecting blank regions of the optical disc to generate a blank detection signal;
- and
- outputting the blank detection signal according to the defect decision signal.
A detecting apparatus for detecting statuses of an optical disc, comprising:
- a defect detector, for detecting defect regions of the optical disc to generate a defect decision signal;
- and
- a blank detector, coupled to the defect detector, for detecting blank regions of the optical disc to generate a blank detection signal, and for outputting the blank detection signal according to the defect decision signal.
Dependencies are inferred from the claim text.