Information reproducing apparatus and method

Details Information reproducing apparatus and method Information reproducing apparatus and method

2006-08-09

2010-11-23

Feild, Joseph H (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal processing for controlling recording light...

C369S047500, C369S047280, C369S053230, C369S053310, C369S059120, C369S059130, C369S059140, C369S059150, C369S059160, C369S059170, C369S059180, C369S059190, C369S059200, C369S059210, C369S116000

Reexamination Certificate

active

07839748

ABSTRACT:
There is provided an optical information recording/reproducing apparatus capable of obtaining a high super-resolution effect using an optical information recording medium in which a super-resolution thin film is formed. An optical information recording medium1having a super-resolution layer is irradiated with a laser light in a light emission pattern such that a bias light emission portion that does not cause the super-resolution layer to be in the state of super-resolution and a pulse light emission portion that causes the super-resolution layer to be in the state of super-resolution alternatively appear, and reflected light is detected. A reproduction signal based on the pulse light emission portion and a reproduction signal based on the bias light emission portion are acquired. The results obtained by performing an arithmetic processing on the reproduction signal based on the bias light emission portion and the reproduction signal based on the pulse light emission portion are outputted as reproduction data.

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