Optical disk device using high and low data-sensing criteria plu

Details Optical disk device using high and low data-sensing criteria plu Optical disk device using high and low data-sensing criteria plu

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.

REFERENCES:
patent: 4571714 (1986-02-01), Mathews et al.
patent: 4571716 (1986-02-01), Szerlip
patent: 4800548 (1989-01-01), Koishi et al.
patent: 4891716 (1990-01-01), Andersen
patent: 4998233 (1991-03-01), DiMatteo et al.
patent: 5003521 (1991-03-01), Yoshida et al.
patent: 5134606 (1992-07-01), Sekiguchi et al.
patent: 5136569 (1992-08-01), Fennema et al.

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