Record carrier body with a follow-on track and apparatus for rec

Details Record carrier body with a follow-on track and apparatus for rec Record carrier body with a follow-on track and apparatus for rec

1983-05-31

1989-02-21

Richardson, Robert L.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369275, G11B 7095, G11B 700

Patent

active

048072095

ABSTRACT:
A disk-shaped record carrier body for storing information which is recorded thereon by a beam of radiation. The carrier body comprises a follow-on track which is capable of being scanned with an opto-electronic system so as to produce an electrical signal for controlling the position of the beam during recording of the information.

REFERENCES:
patent: 3337718 (1967-08-01), Harper et al.
patent: 3876842 (1975-04-01), Bouwhuis
patent: 3905040 (1975-09-01), Otala
patent: 3956582 (1976-05-01), Bouwhuis
Kubec et al, IBM Tech. Disc. Bulletin, vol. 12, No. 4, 9/69.
Schneider, IBM Tech. Disc. Bulletin, vol. 16, No. 4, 9/73.

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