US PATENT SUBCLASS 341 / 72
.~.~ To or from delay modulation code (e.g., Miller code, three frequency code, MFM code)

Current as of: June, 1999
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341 /   HD   CODED DATA GENERATION OR CONVERSION

50  DF  DIGITAL CODE TO DIGITAL CODE CONVERTERS {38}
68  DF  .~ To or from NRZ (nonreturn-to-zero) codes {6}
72.~.~ To or from delay modulation code (e.g., Miller code, three frequency code, MFM code)

DEFINITION

Classification: 341/72

To or from delay modulation code (e.g., miller code, three frequency code, mfm code):

(under subclass 68) Subject matter for converting digital signals to or from other digital signals wherein a one is encoded as a transition in the middle of a bit cell and a zero is encoded as a transition at the start of the bit cell except there is no transition after a one.