Video disc player having stylus protecting apparatus

Details Video disc player having stylus protecting apparatus Video disc player having stylus protecting apparatus

1981-04-09

1982-11-09

Stephan, Steven L.

Dynamic information storage or retrieval

With particular cabinet structure

Slotted for edgewise insertion of storage disc

369170, 369256, G11B 358, G11B 310

Patent

active

043588417

ABSTRACT:
The video disc player includes a selectively-actuated stylus arm lifter. When the player is in the PLAY mode, a forward bias is applied to the lifter electromagnet to cause it to lower the stylus on the record. When the player is disposed in the record LOAD/UNLOAD mode, the lifter is reverse biased to prevent the stylus from being lowered and coming in contact with moving parts during the record load/unload operations.

REFERENCES:
patent: 3952147 (1976-04-01), Leedom
patent: 4049280 (1977-09-01), Leedom
patent: 4256311 (1981-03-01), Allen et al.
patent: 4285524 (1981-08-01), Hughes et al.

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