Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1990-09-04
1993-08-03
Young, W. R.
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369 4429, 369 4431, 369 4433, 369 48, 369 50, 369 54, 369 58, G11B 7095
Patent
active
052335844
ABSTRACT:
Error control procedures are described for an optical disk recorder. High and low criteria for each of a plurality of machine operations or functions of an optical disk recorder are described. Such functions include erasing a sector, writing data, and reading data. Each function has two sub parts, reading a sector ID and performing the function in a data field. The high and low criteria for reading the sector ID and for performing the function in the data field, are different. The high and low criteria for a ROM portion of the optical disk are different from that provided for magnetooptic portion.
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Kulakowski John E.
McDowell Judson A.
Means Rodney J.
International Business Machines - Corporation
Somermeyer Herbert
Young W. R.
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