US PATENT SUBCLASS 327 / 117
.~.~ Frequency division

Current as of: June, 1999
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327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

100  DF  SIGNAL CONVERTING, SHAPING, OR GENERATING {29}
113  DF  .~ Frequency or repetition rate conversion or control {3}
117.~.~ Frequency division {1}
118  DF  .~.~.~> Having discrete active device (e.g., transistor, triode, etc.)

DEFINITION

Classification: 327/117

Frequency division:

(under subclass 113) Subject matter wherein an input signal having a first frequency is transformed into an output signal having a second lower frequency where the output frequency is a submultiple of the input frequency.

(1) Note. Included as submultiples are fractions such as two-thirds.

SEE OR SEARCH THIS CLASS, SUBCLASS:

114, for frequency conversion of a pulse train.

119+, for miscellaneous frequency multiplication.

185+, for particular multivibrator type which may or may not be used as a frequency divider.

SEE OR SEARCH CLASS

84, Music, 600+, for apparatus for generating or modifying electric currents or potentials to produce varying electric currents or potentials in combination with or intended for use with structure for converting the varying electric currents or potentials into musical tones.

363, Electric Power Conversion Systems,

157+, for frequency conversion systems of a single electrical source coupled to a single electrical load where there is no intermediate conversion to DC.