Abnormal track skipping detection and control arrangement

Details Abnormal track skipping detection and control arrangement Abnormal track skipping detection and control arrangement

1987-04-27

1988-07-19

Faber, Alan

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 46, 369 54, 369111, 369116, 358907, 346 76L, G11B 709

Patent

active

047590068

ABSTRACT:
A track skipping detection and control arrangement for an optical recording and reproducing disc formed with guide tracks for use in an optical information recording and reproducing apparatus. According to the track skipping detection and control arrangement of the present invention, any sudden track skipping which may take place during recording can be instantaneously detected by the track traversing signal so as to reduce the recording power for the prevention of erroneous recording to neighboring tracks. Moreover, by distinguishing the track traversing signal detected during the jumping operation for repeated continuous reproduction of the particular one track of the optical disc having spiral tracks, from the traversing signal due to the track skipping, erroneous recording may be similarly prevented also with respect to the optical disc having the tracks in the spiral configuration.

REFERENCES:
patent: 4426693 (1984-01-01), Satoh
patent: 4494225 (1985-01-01), Kimura
patent: 4519056 (1985-05-01), Kimoto
patent: 4554652 (1985-11-01), Maeda
patent: 4570251 (1986-02-01), Yokota

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