US PATENT SUBCLASS 369 / 278
.~.~ Groove acts as control system signal

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


369 /   HD   DYNAMIC INFORMATION STORAGE OR RETRIEVAL

272  DF  STORAGE MEDIUM STRUCTURE {11}
277  DF  .~ Special groove (e.g., particular groove shape) {2}
278.~.~ Groove acts as control system signal

DEFINITION

Classification: 369/278

Groove acts as control system signal:

(under subclass 277) Subject matter wherein the position of the groove is modified for a predetermined control signal.

(1) Note. Distinction should be noted between position changes related to only storage (lateral recording) and changes intended to control a sensor (eccentric groove for actuating tone arm trip switch).