Patent ID: 7986600
Filing Date: 2011-07-26
Classification: G11B

Abstract:
1. A method for optimizing a recording signal of an optical recording apparatus to record data onto a disc, the recording signal having a first pulse-width parameter, the method comprising: selecting an initial value of the first pulse-width parameter stored in the optical recording apparatus; generating a plurality of adjusted values based on the initial value to record test data onto the disc respectively; measuring mark lengths of lands after the test data are recorded on the disc; determining average lengths of the mark lengths of lands corresponding to the plurality of adjusted values; determining differences between the average lengths and a predetermined standard length; linear curve fitting the adjusted values and the differences employing the following linear curve fitting equation: Y=AX+B to obtain the constants A and B, wherein X represents the adjusted values, Y represents the differences; determining an optimum value of the first pulse-width parameter, this optimum value equals to −B/A; and storing the optimum value to be used for recording the data onto the disc.