Video disc stylus control apparatus

Details Video disc stylus control apparatus Video disc stylus control apparatus

1980-09-23

1982-03-16

Moffitt, James W.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

369215, G11B 1700

Patent

active

043204872

ABSTRACT:
A video disc player having a signal pickup stylus for engaging a disc record is equipped with a steering device to provide three degrees of motion to the stylus. The stylus is secured to a stylus arm, the second end of which is compliantly mounted to a support structure. A permanent magnet in the shape of a cruciform with a like magnetic pole at each extremity is secured to the second end of the stylus. Magnetic field producing electric coils are arranged proximate each of the extremities of the cruciform and secured to the support structure so that energization of the coils will apply force to the cruciform causing the stylus arm to pivot about its compliant mounting.

REFERENCES:
patent: 3763335 (1973-10-01), Morita
patent: 4152727 (1979-05-01), Fatsuguchi
patent: 4160268 (1979-07-01), Gota
patent: 4170783 (1979-10-01), Fajima
patent: 4183059 (1980-01-01), Palmer

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