US PATENT SUBCLASS 455 / 320
.~.~.~.~ Lumped impedance

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}
318  DF  .~.~ With specified local oscillator structure or coupling {2}
319  DF  .~.~.~ With particular coupling {1}
320.~.~.~.~ Lumped impedance

DEFINITION

Classification: 455/320

Lumped impedance:

(under subclass 319) Systems where substantially all impedance in the coupling means is concentrated in components, as distinguished from impedance due to stray or distributed effects.