Signal pickup device

Dynamic information storage or retrieval – Specific detail of information handling portion of system – Electrical modification or sensing of storage medium

Patent

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Details

369128, 369129, G11B 1100

Patent

active

045190623

ABSTRACT:
A signal pickup device for picking up signals from a video disc includes a base plate, a transducer unit printed on the base plate and having an oscillator, transformer, a resonator, an inductor, and a preamplifier mounted on the base plate and located longitudinally of the transducer unit. The preamplifier is of an elongated structure extending transversely of and substantially across the transducer unit. The oscillator and the preamplifier are supplied with electric power via a power supply terminal which is disposed substantially midway between the oscillator and the preamplifier. With this construction, the signal pickup device is reduced in width, and is of a unitary structure which can be easily positioned in place and results in high noise resistance.

REFERENCES:
patent: 3444333 (1969-05-01), Tourtellot
patent: 3806668 (1974-04-01), Hilliker
patent: 4080625 (1978-03-01), Kawamoto et al.

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