Optical disk drive apparatus and linear velocity calculating met

Details Optical disk drive apparatus and linear velocity calculating met Optical disk drive apparatus and linear velocity calculating met

1997-06-03

1999-07-06

Tran, Thang V.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369 48, G11B 700

Patent

active

059205318

ABSTRACT:
An apparatus for reproducing data from the optical disk at a constant linear velocity includes a specified rotation speed detection module which decides whether or not the optical disk is rotating at a specified rotation speed. A linear velocity calculation module arithmetically determines the linear velocity by measuring a time taken for a complete rotation of the optical disk at a start position of a data area on the optical disk when the optical disk is detected as rotating at a specified rotation speed.

REFERENCES:
patent: 5680023 (1997-10-01), Komaki

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