US PATENT SUBCLASS 369 / 185
.~.~.~ Disc size sensor on or using tone arm

Current as of: June, 1999
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369 /   HD   DYNAMIC INFORMATION STORAGE OR RETRIEVAL

176  DF  DYNAMIC MECHANISM SUBSYSTEM {8}
178  DF  .~ Access of multiple storage elements (e.g., record changer) {14}
184  DF  .~.~ Tone arm position control by sensing of disc (e.g., disc or hole size) {4}
185.~.~.~ Disc size sensor on or using tone arm

DEFINITION

Classification: 369/185

Disc size sensor on or using tone arm:

(under subclass 184) Subject matter wherein the size of the disc to be placed in use is determined by a sensing element mounted on, or by direct disc contact with, the tone arm.