Patent ID: 7113473
Filing Date: 2006-09-26
Classification: G11B

Abstract:
1. An apparatus comprising: a recording pulse generator operable to generate recording pulse signals so as to modulate an optical intensity of a laser light source according to recording data; and a sampling timing generator operable to generate a sampling timing to instruct sampling to a sampler; wherein information is recorded by emitting a laser beam that is modulated according to recording data to a recording medium; said laser light source emits a laser beam to a recording medium; a laser driver drives said laser light source according to the recording pulse signals generated by said recording pulse generator; a photodetector detects the laser beam emitted by said laser light source; and said sampler samples an output signal of said photodetector; and wherein said sampling timing generator is operable to generate a sampling timing which is delayed by at least a response time of a propagation path including said laser driver, said laser light source and said photodetector.