US PATENT SUBCLASS 73 / 611
.~.~.~.~.~ Adjustably responsive to information signal

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

570  DF  VIBRATION {10}
584  DF  .~ By mechanical waves {13}
596  DF  .~.~ Beamed {10}
609  DF  .~.~.~ Measuring or testing system having threshold, gating, delay, or blocking means {2}
610  DF  .~.~.~.~ Electronic gating {6}
611.~.~.~.~.~ Adjustably responsive to information signal

DEFINITION

Classification: 73/611

Adjustably responsive to information signal:

(under subclass 610) Subject matter wherein the gating means is adjusted or controlled in accordance with an electrical information signal, as a signal corresponding to an echo signal from the test body, a signal corresponding to movement of the sonic transmitter or receiver, etc.