Patent Application
20080084803
The optical disc scoring unit 107 then generates information 110 according to the front end quality indicator 104, the back end quality indicator 106 and the disc indicator 108. The information 110 indicates compatibility between the disc and the disc drive. The front end unit 101 and the back end unit 103 then adjust the accessing parameters of the disc drive and process the disc in one of the predetermined procedures in response to the information 110. For example, the information 110 may contain a value, once the value is lower than a predetermined threshold value, which means the disc is not compatible with the disc drive and cannot be read smoothly. The disc drive then stops trying to read the disc and enables a controller to open a tray of the disc drive. The information 110 may also indicate a low RF signal, which means the pick-up head of the disc drive is not on a normal focusing position to read data from the disc. The disc drive then adjusts its accessing parameter to set the pick-up head back to the normal focusing position. The information 110 may also indicate the BER. If the BER is high, it means the disc drive has to execute a correction procedure to correct data read from the disc. If the BER is low, which means the read data is mostly correct, the disc drive may skip the correction procedure and directly execute and play data read from the disc.
The score display 109 then receives the information 110 from the optical disc scoring unit 107 and presents the information 110 through an audio message or a video message to notify the user of the compatibility between the disc and the disc drive. The information 110 is also stored in a memory 111.
If the evaluation in the step 202 responds negatively, which means the disc and the disc drive are not compatible with each other, then the step 204 is executed to score the disc and store the scoring result to a memory. In the step 206, the scoring result is presented in an audio message or a video message. In the step 208, accessing parameters of the DVD player are adjusted to read the disc. Then step 202 is executed to evaluate the disc again.
In addition to the steps shown in
The present invention provides a solution for evaluating compatibility between the disc and the disc drive when the disc drive accesses the disc, so that the disc drive can play the disc in different predetermined procedures and adjust accessing parameters according to the scoring result.
The above disclosure is related to the detailed technical contents and inventive features thereof. People skilled in this field may proceed with a variety of modifications and replacements based on the disclosures and suggestions of the invention as described without departing from the characteristics thereof. Though such modifications and replacements are not fully disclosed in the above descriptions, they have substantially been covered in the following claims as appended.
