Track cross signal correction apparatus

Details Track cross signal correction apparatus Track cross signal correction apparatus

1997-05-09

1999-03-02

Tran, Thang V.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

G11B 700

Patent

active

058780068

ABSTRACT:
A track cross signal correction apparatus removes noise components contained in a track cross signal. The apparatus includes mask signal generator for comparing pulse widths of the received track cross signals with threshold values, based on the pulse width of a previous track cross signal. A mask signal is generated according to the comparison result. A corrector outputs a received track cross signal when mask signals are generated from the mask signal generator. The track cross signal correction apparatus accurately performs a track seek operation in a medium such as a CD-ROM which requires high-speed access.

REFERENCES:
patent: 5199017 (1993-03-01), Kagami et al.
patent: 5426625 (1995-06-01), Bui et al.
patent: 5428591 (1995-06-01), Lee
patent: 5459705 (1995-10-01), Matoba et al.
patent: 5473587 (1995-12-01), Hamaguchi et al.

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