Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2007-04-17
2007-04-17
Wellington, Andrea (Department: 2627)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
C369S044290, C369S044350, C369S053240
Reexamination Certificate
active
10450368
ABSTRACT:
Track jumping on optical storage media whose address information items invalidate the track error signal at time intervals is intended to be configured more securely and more reliably. For this purpose, at the end of a coarse jump, one or more correction jumps are carried out if the optical scanner is not presently sweeping over an address information area and the track change frequency of the tracks crossed by the scanner falls below a predetermined value.
REFERENCES:
patent: 4796246 (1989-01-01), Tsuyoshi et al.
patent: 5646916 (1997-07-01), Kobayashi
patent: 5777963 (1998-07-01), Fueki et al.
patent: 6377522 (2002-04-01), Toda
patent: 6631114 (2003-10-01), Kobayashi
patent: 61-3329 (1986-01-01), None
patent: 04281242 (1992-10-01), None
Translation of above Japanese patent which was previously submitted with the IDS mailed with filing papers.
Patent Abstracts of Japan, vol. 010, No. 149, May 30, 1986 & JP 61-003329.
Search Report dated Jun. 14, 2002.
Büchler Christian
Kimmelmann Stefan
Kuner Martin
Fried Harvey D.
Laks Joseph J.
Ortiz-Criado Jorge L.
Thomson Licensing
Verlangieri Patricia
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