US PATENT SUBCLASS 340 / 870.22
.~.~.~ Permutation code

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

870.01  DF  CONTINUOUSLY VARIABLE INDICATING (E.G., TELEMETERING) {15}
870.18  DF  .~ Using a particular modulation (e.g., phase, frequency, or amplitude) {1}
870.19  DF  .~.~ Pulse {5}
870.22.~.~.~ Permutation code

DEFINITION

Classification: 340/870.22

Permutation code:

(under subclass 870.19) Subject matter in which the pulse modulation is a code for use in the systematic construction of code groups from a fixed size pulse set.