US PATENT SUBCLASS 375 / 312
.~.~ Power or bias voltage supply keying

Current as of: June, 1999
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375 /   HD   PULSE OR DIGITAL COMMUNICATIONS

295  DF  TRANSMITTERS {6}
309  DF  .~ Keying circuits {6}
312.~.~ Power or bias voltage supply keying

DEFINITION

Classification: 375/312

Power or bias voltage supply keying:

(under subclass 309) Subject matter wherein the keying device for controlling the operation of the transmitter is in the power or bias voltage supply circuit.

SEE OR SEARCH CLASS

331, Oscillators,

173+, for oscillators controlled by keying the power supply circuit.

332, Modulators,

181, for plate circuit modulation in an amplitude modulator.