Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1992-10-30
1994-07-12
Sniezek, Andrew L.
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369 4434, 369 4435, 369 4442, G11B 700
Patent
active
053295080
ABSTRACT:
A regenerating device for an optical recording medium which includes a detector preferably consisting of a charge modulation device and cell groups disposed in a matrix configuration, readout switches, a column selecting device for selecting the readout switches provided at every column on the basis of inputted column-address information, and a row selecting device for selecting cells in a specific row on the basis of inputted row-address information. The regenerating device further includes a readout device for defining, by time sharing, a cell region in a predetermined position of all of the cells disposed in the detector so as to read out detecting signals by time-sharing from these cells. The regenerating device controls a servo-control device controlling an optical head by using the detected signal in the detector, and furthermore, reads information recorded in a medium by using a reading device.
REFERENCES:
patent: 5155718 (1992-10-01), Hashimoto et al.
patent: 5157249 (1992-10-01), Hashimoto et al.
JOIT, vol. 3, No. 2/1988, pp. 32-38.
Edun Mohammad
Olympus Optical Co,. Ltd.
Sniezek Andrew L.
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