Method of improving the signal-to-noise ratio in a capacitance e

Details Method of improving the signal-to-noise ratio in a capacitance e Method of improving the signal-to-noise ratio in a capacitance e

1982-10-05

1986-03-11

Richardson, Robert L.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Electrical modification or sensing of storage medium

369276, 369288, 369286, 358342, 428447, H04N 576, G11B 908

Patent

active

045758344

ABSTRACT:
The audio signal-to-noise ratio obtainable in a capacitance electronic disc system which includes a conductive disc formed from a plastic resin containing conductive particles and a playback stylus is increased by spacing the playback stylus at a slight distance from the surface of the conductive disc. This spacing can be attained by depositing a thin coating of a dielectric material on the surface of the conductive disc.

REFERENCES:
patent: 3843399 (1974-10-01), Kaplan et al.
patent: 4137550 (1979-01-01), Kaganowicz et al.
patent: 4228050 (1980-10-01), Martin et al.
patent: 4275101 (1981-06-01), Wang et al.
patent: 4416789 (1983-11-01), Shidlovsky et al.

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