Patent ID: 7613089
Filing Date: 2009-11-03
Classification: G11B

Abstract:
1. A method for adjusting write power of optical disc recording, comprising: pre-setting a range of a write quality parameter and a write power; commanding an optical pickup head and a spindle motor to move to a target track to be written; reading said write quality parameter; storing and accumulating said write quality parameter in a memory unit and counting a number of times of storing write quality parameters; determining whether said number of times of storing write quality parameters is equaled to a target value; writing a data to said target track according to said write power when said number of times of storing write quality parameters is less than said target value; calculating an average write quality parameter and resetting said number of times of storing write quality parameters and an accumulated value of said write quality parameters when said number of times of storing write quality parameters is equaled to said target value; determining whether said write quality parameter is in said range; and writing a data to said target track according to said write power, which is unadjusted, when said average write quality parameter is in said range; otherwise writing said data to said target track according to said write power, which is adjusted, when said average write quality parameter is out of said range.