US PATENT SUBCLASS 455 / 330
.~.~.~.~ With nonlinear impedance (e.g., diode)

Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

130  DF  RECEIVER OR ANALOG MODULATED SIGNAL FREQUENCY CONVERTER {24}
313  DF  .~ Frequency modifying or conversion {4}
323  DF  .~.~ Particular frequency conversion structure or circuitry {5}
325  DF  .~.~.~ Including distributed electrical parameter structure {3}
330.~.~.~.~ With nonlinear impedance (e.g., diode)

DEFINITION

Classification: 455/330

With nonlinear impedance (e.g., diode):

(under subclass 325) Subject matter having a device connected to the distributed electrical parameter structure, said device having an output that does not rise or fall in direction proportion to the input.