Pickup stylus

Details Pickup stylus Pickup stylus

1981-11-09

1984-07-03

Richardson, Robert L.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Electrical modification or sensing of storage medium

369173, 204192C, 428209, C23C 1500, G11B 1106, H04N 576

Patent

active

044583460

ABSTRACT:
A pickup stylus comprises a diamond stylus body having a rough surface and a conductive coating deposited onto said rough surface. The rough surface is made by ion bombardment process.
The pickup stylus is useful for information playback in video and/or audio disc system.

REFERENCES:
patent: 3826877 (1974-07-01), Leedom et al.
patent: 3843846 (1974-10-01), Miller
patent: 3945902 (1976-03-01), Hawrylo et al.
patent: 4052738 (1977-10-01), Hosomi et al.
patent: 4104832 (1978-08-01), Keizer
patent: 4164755 (1979-08-01), Matsumoto
patent: 4165560 (1979-08-01), Matsumoto

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