US PATENT SUBCLASS 455 / 216
.~.~ With particular frequency division or multiplication


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}
216.~.~ With particular frequency division or multiplication


DEFINITION

Classification: 455/216

With particular frequency division or multiplication:

(under subclass 205) Subject matter including the combination of a frequency or phase-modulation type receiver, which may be broadly claimed, with a specific frequency dividing or multiplying means.

SEE OR SEARCH CLASS

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

113+, for miscellaneous frequency conversion or control and subclasses 185+ for stable state circuits which may be utilized as frequency dividers.

331, Oscillators,

51, for frequency dividing, and subclass 53 for frequency multiplying, plural, cascaded oscillators; and subclasses 74+ for systems comprising a free running oscillator combined with particular output coupling network means which may comprise frequency multiplying or dividing means.

377, Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems, for electrical pulse counters and dividers.