US PATENT SUBCLASS 455 / 249.1
.~.~.~.~ Variable attenuator type

Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

130  DF  RECEIVER OR ANALOG MODULATED SIGNAL FREQUENCY CONVERTER {24}
230  DF  .~ Local control of receiver operation {7}
232.1  DF  .~.~ Gain control {2}
234.1  DF  .~.~.~ Automatic {15}
249.1.~.~.~.~ Variable attenuator type

DEFINITION

Classification: 455/249.1

Variable attenuator type:

(under subclass 234.1) Subject matter comprising a circuit that absorbs part of the received carrier wave and transmits the remainder with a minimum of distortion or delay, the amount absorbed being variable.