US PATENT SUBCLASS 360 / 43
.~.~ Multi-frequency

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

39  DF  GENERAL PROCESSING OF A DIGITAL SIGNAL {10}
40  DF  .~ In specific code or form {4}
43.~.~ Multi-frequency

DEFINITION

Classification: 360/43

(under subclass 40) Subject matter wherein a first binary digit is indicated by one full cycle of the waveform per bit cell and the second binary digit is indicated by one-half cycle of the waveform per bit cell. Example: [figure]