Apparatus and method for optical disk reproduction

Details Apparatus and method for optical disk reproduction Apparatus and method for optical disk reproduction

2006-04-18

2006-04-18

Edun, Muhammad (Department: 2655)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal level detecting using a reference signal

C369S047100, C369S030010

Reissue Patent

active

RE039067

ABSTRACT:
An apparatus of the present invention is an optical disk apparatus for irradiating with a laser beam an optical disk on which address marks are recorded at intervals based on a pulse width modulation method and for reproducing data from a reproduced signal based on reflected light. The apparatus includes: a pulse signal reproduction section for producing a reproduced pulse signal from the reproduced signal based on a threshold value; a threshold value production section for producing the threshold value based on the reproduced pulse signal; and a gate signal production section for producing an address gate signal at a timing when the address mark is reproduced.

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