Dual drive system for phono pickup arm

Details Dual drive system for phono pickup arm Dual drive system for phono pickup arm

1983-01-17

1986-04-01

Stephan, Steven L.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Having power driven transducer assembly

369 41, 369 752, 369219, G11B 338, G11B 1706

Patent

active

045802572

ABSTRACT:
A dual drive system for an automatic record player of a type in which programmed music selection can be carried out. The drive system includes a mechanical first drive system for mechanically driving the pickup arm and an electromagnetic second drive system for driving the pickup arm using an electromagnetic force. Circuitry is provided for selecting between the two drive systems in accordance with the selected operational mode of the player or the position of the pickup arm.

REFERENCES:
patent: 3697087 (1972-10-01), Takahashi
patent: 4150833 (1979-04-01), Yamamura
patent: 4184688 (1980-01-01), Omura et al.
patent: 4310918 (1982-01-01), Hirata
patent: 4342108 (1982-07-01), Kitamura et al.
patent: 4375093 (1983-02-01), Takahashi
patent: 4408311 (1983-10-01), Suzuki et al.

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