Apparatus and method for generating a reference level to detect

Details Apparatus and method for generating a reference level to detect Apparatus and method for generating a reference level to detect

1997-07-11

2000-08-22

Edun, Muhammad

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4425, G11B 709

Patent

active

061082848

ABSTRACT:
A track traverse signal detecting apparatus and method adjust the level of a reference voltage by calculating a mean value of a track traverse signal, or by adjusting the frequency of the phase of the track traverse signal. The track traverse signal detecting apparatus and method further determine whether an optical medium being processed is a CD or a DVD, and adjust the level of a reference voltage based on this determination. Therefore, in the case of a track jump or random access, the track access operation is performed accurately.

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patent: 5592448 (1997-01-01), Suzuki et al.
patent: 5774438 (1998-06-01), Park et al.

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