US PATENT SUBCLASS 455 / 131
.~ Frequency conversion between signal source (e.g., wave collector) and receiver

Current as of: June, 1999
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130  DF  RECEIVER OR ANALOG MODULATED SIGNAL FREQUENCY CONVERTER {24}
131.~ Frequency conversion between signal source (e.g., wave collector) and receiver

DEFINITION

Classification: 455/131

Frequency conversion between signal source (e.g., wave collector) and receiver:

(under subclass 130) Subject matter where the frequency of the signal supplied by the signal source (antenna or cable) is converted to another frequency which the receiver is able to receive.