Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1997-03-27
1999-04-06
Huber, Paul W.
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369 4435, 369 54, G11B 700, G11B 390
Patent
active
058927433
ABSTRACT:
An object of the present invention is to provide an optical disk reproducing method and apparatus which allows for influence on focus servo control and tracking servo control involved in outputting voice information. The optical disk reproducing apparatus includes an optical pickup, a tracking servo control for causing the optical pickup to trace a track on the optical disk, a focus servo control and a pair of speakers for outputting reproduced voice information to the outside. When an information determining unit determines that the reproduced information includes voice information, the tracking servo control and the focus servo control are operated so as to provide a servo characteristic suitable for reproduction of voice information by the speakers to thereby reproduce information in the optical disk.
REFERENCES:
patent: 5289451 (1994-02-01), Ashinuma et al.
patent: 5315570 (1994-05-01), Miura et al.
patent: 5463602 (1995-10-01), Oka et al.
patent: 5541900 (1996-07-01), Ito et al.
Egashira Tsutomu
Furukawa Fuminobu
Narahara Syuji
Nishiyama Akihiro
Okada Kouji
Huber Paul W.
Matsushita Electric - Industrial Co., Ltd.
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