US PATENT SUBCLASS 455 / 207
.~.~ With plural conversion

Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

130  DF  RECEIVER OR ANALOG MODULATED SIGNAL FREQUENCY CONVERTER {24}
205  DF  .~ Frequency or phase modulation {7}
207.~.~ With plural conversion

DEFINITION

Classification: 455/207

With plural conversion:

(under subclass 205) Subject matter including a plurality of mixing or conversion means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

102, for transmitters with plural stages of modulation.

314, for receivers in general with wave modifying or conversion systems including plural successive conversion stages.

SEE OR SEARCH CLASS

332, Modulators,

119+, and 145 for phase or frequency modulators having plural successive stages of modulation.