US PATENT SUBCLASS 370 / 289
.~.~.~ Having residual echo cancellation or suppression

Current as of: June, 1999
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370 /   HD   MULTIPLEX COMMUNICATIONS

276  DF  DUPLEX {6}
282  DF  .~ Transmit/receive interaction control {4}
286  DF  .~.~ Echo suppression or cancellation {5}
289.~.~.~ Having residual echo cancellation or suppression

DEFINITION

Classification: 370/289

Having residual echo cancellation or suppression:

(under subclass 286) Subject matter wherein an apparatus is provided to cancel or suppress the echo remaining after the main echo has been suppressed.