Optical information reproducing method in which ei

专利名称：Optical information reproducing method in

which either a first edge signal or a secondedge signal is selected depending on alength of a mark on an optical informationmedium

发明人：Shigeru Nakamura,Takeshi Maeda,Koichiro

Wakabayashi

申请号：US10145041申请日：20020515公开号：US06577573B2公开日：20030610

专利附图：

摘要：An optical information reproducing method for reproducing informationrecorded at at least one mark on an optical information medium. The method includesirradiating a laser to the optical information medium, detecting a reflected beamreflected from the optical information medium, and reproducing information recordedon the optical information medium from an output signal of a detector which detects thereflected beam. The step of reproducing information is changed in dependence upon alength of the mark of the optical information medium.

申请人：HITACHI, LTD.

代理机构：Antonelli,Terry,Stout & Kraus, LLP

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