Tubular player arm for an optical recording and reproducing devi

Details Tubular player arm for an optical recording and reproducing devi Tubular player arm for an optical recording and reproducing devi

1974-04-29

1976-07-13

Cardillo, Jr., Raymond F.

Telegraphy

Systems

Simplex-reversing periodic

178 66DD, 178 67A, 1791003V, 17910041L, 360 77, 360 78, H04N 576, G11B 2110, G11B 712, G11B 1700

Patent

active

039695743

ABSTRACT:
A device for writing information in a disk-shaped record carrier, and/or for reproducing the recorded information, the transducer being radially movable relative to the record carrier, which transducer is disposed on a tubular member, which at its one end is provided with a drive coil and at its other end with a tachometer coil, which coils are movable in an air gap of a stationary magnet system.

REFERENCES:
patent: 2581133 (1952-01-01), Niemann
patent: 3391255 (1968-07-01), Gregg
patent: 3521092 (1970-07-01), Kalthoff
patent: 3544980 (1970-12-01), Applequist
patent: 3576454 (1968-03-01), Beach
patent: 3833769 (1974-09-01), Compaan et al.
patent: 3842197 (1974-10-01), Broussaud et al.

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