Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Patent
1997-03-07
1998-08-18
Neyzari, Ali
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
3692754, G11B 724
Patent
active
057967105
ABSTRACT:
System for recording/writing on a recording medium in which there are distributed, on the tracks, groups (G0) of tracks with positive continuous components and groups (G1) of tracks with negative continuous components. In reading, the values of the different signals are integrated for each track. Then, on the one hand, a first addition circuit S1 adds up the results of integration of the first tracks of each group of tracks and, secondly, a second addition circuit S2 adds up the results of integration of the last tracks of each group of tracks. A comparison circuit (CD) compares the results of additions of the two addition circuits to correct the track-following operation.
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patent: 5282104 (1994-01-01), Coutellier et al.
patent: 5335120 (1994-08-01), Colineau et al.
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Colineau Joseph
Hanna Charaf
Maurice Fran.cedilla.ois
Sonrier Michel
"Thomson-CSF"
Neyzari Ali
Thomson Consumer Electronics
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