Patent ID: 8320223

Claim:
A method for eliminating a write power transient of an optical storage apparatus; comprising: obtaining a target voltage level of a write voltage when next time the optical storage apparatus writes data; updating a second command value by using the target voltage level according to a relationship between a first command value or the second command value and the write voltage; and pre-charging the write voltage of the optical storage apparatus to the target voltage level according to the updated second command value before the optical storage apparatus starts to write data, wherein the step of obtaining the target voltage level of the write voltage when next time the optical storage apparatus writes data comprises; recording a first read voltage level (VRDC) at a writing termination; recording a first write voltage level at the writing termination; obtaining a second read voltage level before the optical storage apparatus starts to write data; and determining the target voltage level by using the first write voltage level according to a ratio of the first read voltage level to the second read voltage level.