US PATENT SUBCLASS 360 / 73.13
.~.~.~.~.~.~ From separate track

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

69  DF  AUTOMATIC CONTROL OF A RECORDER MECHANISM {3}
71  DF  .~ Controlling the record {3}
73.01  DF  .~.~ Speed {3}
73.04  DF  .~.~.~ Linear carrier {2}
73.09  DF  .~.~.~.~ Constant speed {3}
73.12  DF  .~.~.~.~.~ By reproduced control signal {1}
73.13.~.~.~.~.~.~ From separate track

DEFINITION

Classification: 360/73.13

From separate track:

(under subclass 73.12) Subject matter wherein the control signal is stored on a track on the record carrier distinct from other information recorded thereon.