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 Class   332MODULATORS
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  100           FREQUENCY SHIFT KEYING MODULATOR OR MINIMUM SHIFT KEYING MODULATOR
  101           . (1 indent ) Including logic element (e.g., logic gate or flip-flop)
  102           . (1 indent ) Including discrete semiconductor device
  103           PHASE SHIFT KEYING MODULATOR OR QUADRATURE AMPLITUDE MODULATOR
  104           . (1 indent ) Including logic element (e.g., logic gate or flip-flop)
  105           . (1 indent ) Including discrete semiconductor device
  106           PULSE OR INTERRUPTED CONTINUOUS WAVE MODULATOR
  107           . (1 indent ) Including stabilization or alternatively distortion, noise or other interference prevention, reduction or compensation
  108           . (1 indent ) Plural modulation
  109           . (1 indent ) Pulse width modulator
  110           .. (2 indent ) Including discrete semiconductor device having three or more electrodes
  111           .. (2 indent ) Including electron discharge device
  112           . (1 indent ) Pulse position, frequency, phase, or spacing modulator
  113           .. (2 indent ) Including discrete semiconductor device having three or more electrodes
  114           .. (2 indent ) Including electron discharge device
  115           . (1 indent ) Pulse amplitude modulator
  116           .. (2 indent ) Including discrete semiconductor device having three or more electrodes
  117           FREQUENCY MODULATOR
  118           . (1 indent ) Including measuring or indicating
  119           . (1 indent ) Plural modulation
  120           .. (2 indent ) Including amplitude modulation
  121           ... (3 indent ) Including electron discharge device
  122           .. (2 indent ) Including electron discharge device
  123           . (1 indent ) Including stabilization or alternatively distortion, noise or other interference prevention, reduction, or compensation
  124           .. (2 indent ) Nonlinearity reduction or compensation
  125           .. (2 indent ) Automatic amplitude stabilization or control
  126           .. (2 indent ) Automatic frequency stabilization or control
  127           ... (3 indent ) Phase or frequency locked loop
  128           .... (4 indent ) Modulating signal applied to plural elements of the loop
  129           . (1 indent ) Including microwave or distributed parameter structure
  130           .. (2 indent ) With discrete semiconductor device
  131           .. (2 indent ) With electron discharge device
  132           ... (3 indent ) Magnetron type
  133           ... (3 indent ) Klystron type
  134           ... (3 indent ) Travelling wave type
  135           . (1 indent ) Including discrete semiconductor device
  136           .. (2 indent ) With varactor
  137           . (1 indent ) Including electron discharge device
  138           .. (2 indent ) Particular oscillator circuit
  139           ... (3 indent ) Crystal oscillator type
  140           .... (4 indent ) With separate modulator tube (e.g., reactance tube)
  141           ... (3 indent ) L-C oscillator type
  142           .... (4 indent ) With separate modulator tube (e.g., reactance tube)
  143           .... (5 indent ) Plural modulator tubes
  144           PHASE MODULATOR
  145           . (1 indent ) Including amplitude modulator
  146           . (1 indent ) Including discrete semiconductor device
  147           . (1 indent ) Including electron discharge device
  148           .. (2 indent ) Push-pull circuit
  149           AMPLITUDE MODULATOR
  150           . (1 indent ) Including measuring or indicating
  151           . (1 indent ) Plural modulation
  152           .. (2 indent ) Including discrete semiconductor device
  153           .. (2 indent ) Including electron discharge device
  154           ... (3 indent ) Push-pull circuit
  155           . (1 indent ) Percent modulation control or automatic amplitude control of carrier or modulating signal
  156           .. (2 indent ) Overmodulation prevention
  157           .. (2 indent ) Average carrier amplitude controlled by modulating signal
  158           .. (2 indent ) Carrier output suppressed during absence of modulating signal
  159           . (1 indent ) Including stabilization or alternatively distortion, noise or other interference prevention, reduction or compensation
  160           .. (2 indent ) Reduction or compensation of nonlinearity in modulation characteristic
  161           .. (2 indent ) Reduction of carrier phase or frequency variations or modulation
  162           .. (2 indent ) Using feedback to reduce distortion, noise or other interference
  163           . (1 indent ) Including microwave or distributed parameter structure
  164           .. (2 indent ) With discrete semiconductor device
  165           .. (2 indent ) With electron discharge device
  166           ... (3 indent ) Magnetron type
  167           . (1 indent ) Suppressed carrier double sideband type
  168           .. (2 indent ) Including discrete semiconductor device
  169           .. (2 indent ) Including electron discharge device
  170           . (1 indent ) Single or vestigial sideband type
  171           .. (2 indent ) Including electron discharge device
  172           . (1 indent ) Modulating signal applied to a bridge circuit
  173           . (1 indent ) Magnetic field varied by modulating signal
  174           . (1 indent ) Resistive or dissipative device controlled by modulating signal (e.g., loss modulator)
  175           . (1 indent ) Variable reactance controlled by modulating signal
  176           . (1 indent ) Nonlinear device controlled by modulating signal
  177           .. (2 indent ) Nonlinear discrete semiconductor device
  178           . (1 indent ) Including discrete semiconductor device
  179           . (1 indent ) Including electron discharge device
  180           .. (2 indent ) Push-pull circuit
  181           .. (2 indent ) Plate circuit modulation
  182           .. (2 indent ) Grid circuit modulation
  183           MODULATION CONVERTER HAVING PRE-MODULATED INPUT (E.G., FM TO AM)
  184           . (1 indent ) Between diverse pulse modulation types
  185           MISCELLANEOUS
 
 FOREIGN ART COLLECTIONS
 
  FOR000           CLASS-RELATED FOREIGN DOCUMENTS


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This data is current as of June/2006