Surface acoustic wave cutterhead for disc recording having a cir

Details Surface acoustic wave cutterhead for disc recording having a cir Surface acoustic wave cutterhead for disc recording having a cir

1982-07-13

1984-06-05

Psitos, Aristotelis M.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Mechanical modification or sensing of storage medium

310313R, 310313B, 310328, G11B 300, H04R 1704

Patent

active

044532423

ABSTRACT:
A surface acoustic wave record stylus is constructed from a support having a surface for propagating surface acoustic waves. A circular-shaped interdigital transducer launches the surface acoustic waves onto the support surface. The shape of the interdigital transducer is such that the surface acoustic waves are focused to a diamond stylus positioned at the center of the circular transducer.

REFERENCES:
patent: 3842194 (1974-10-01), Clemens
patent: 4035590 (1977-07-01), Halter
patent: 4281407 (1981-07-01), Tosima

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