US PATENT SUBCLASS 455 / 84
.~ With a common signal processing stage

Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

73  DF  TRANSMITTER AND RECEIVER AT SAME STATION (E.G., TRANSCEIVER) {9}
84.~ With a common signal processing stage {2}
85  DF  .~.~> Transmitter oscillator used as detector
86  DF  .~.~> Transmitter oscillator used as local oscillator {1}

DEFINITION

Classification: 455/84

With a common signal processing stage:

(under subclass 73) Subject matter having an active element which performs a signal processing or generating function in the transmitter portion of the apparatus during signal transmission and in the receiver portion of the apparatus during signal reception.

(1) Note. The terms "active" and "signal processing" are used to exclude common use of nonprocessing elements, e.g., antennas and power supplies.