Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1994-06-23
1995-11-07
Psitos, Aristotelis
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369 97, 369 4432, G11B 700
Patent
active
054652413
ABSTRACT:
An optical tape recording and reproducing apparatus wherein dynamic tracking can be started at a position at or near the center of a track to reduce the settling time upon leading-in of tracking and increase the recording and/or reproducing range and the operating range of a tracking actuator is kept small to achieve save of power and reduction in size of the actuator and besides a sudden variation of the feeding speed of an optical tape is eliminated to minimize the variation of the tension of the optical tape thereby to minimize possible damage to the optical tape. The position of a spot of a laser beam with respect to a object track of the optical tape is controlled in response to a displacement of the position of the spot of the laser beam at a predetermined sampling point of the object track of the optical tape from the center line of the object track and another displacement of the tracking actuator, which effects tracking of the laser beam, from its central position.
REFERENCES:
patent: 4466088 (1984-08-01), Trethewey
patent: 4564757 (1986-01-01), Labudde et al.
patent: 4607358 (1986-08-01), Maeda et al.
patent: 4782474 (1988-11-01), Arai et al.
patent: 4970707 (1990-11-01), Hara et al.
patent: 5090001 (1992-02-01), Ito et al.
patent: 5155720 (1992-10-01), Narahara et al.
patent: 5189653 (1993-02-01), Yanagi
patent: 5239528 (1993-08-01), Narahara et al.
Maioli Jay H.
Psitos Aristotelis
Sony Corporation
Tran Thang V.
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