USPC Patent Classifications

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Class 332 modulators
uspcdescription
332/100332 modulators/(100) frequency shift keying modulator or minimum shift keying modulator
332/101332 modulators/(100) frequency shift keying modulator or minimum shift keying modulator (101) including logic element (e.g., logic gate or flip-flop)
332/102332 modulators/(100) frequency shift keying modulator or minimum shift keying modulator (102) including discrete semiconductor device
332/103332 modulators/(103) phase shift keying modulator or quadrature amplitude modulator
332/104332 modulators/(103) phase shift keying modulator or quadrature amplitude modulator (104) including logic element (e.g., logic gate or flip-flop)
332/105332 modulators/(103) phase shift keying modulator or quadrature amplitude modulator (105) including discrete semiconductor device
332/106332 modulators/(106) pulse or interrupted continuous wave modulator
332/107332 modulators/(106) pulse or interrupted continuous wave modulator (107) including stabilization or alternatively distortion, noise or other interference prevention, reduction or compensation
332/108332 modulators/(106) pulse or interrupted continuous wave modulator (108) plural modulation
332/109332 modulators/(106) pulse or interrupted continuous wave modulator (109) pulse width modulator
332/110332 modulators/(106) pulse or interrupted continuous wave modulator (109) pulse width modulator (110) including discrete semiconductor device having three or more electrodes
332/111332 modulators/(106) pulse or interrupted continuous wave modulator (109) pulse width modulator (111) including electron discharge device
332/112332 modulators/(106) pulse or interrupted continuous wave modulator (112) pulse position, frequency, phase, or spacing modulator
332/113332 modulators/(106) pulse or interrupted continuous wave modulator (112) pulse position, frequency, phase, or spacing modulator (113) including discrete semiconductor device having three or more electrodes
332/114332 modulators/(106) pulse or interrupted continuous wave modulator (112) pulse position, frequency, phase, or spacing modulator (114) including electron discharge device
332/115332 modulators/(106) pulse or interrupted continuous wave modulator (115) pulse amplitude modulator
332/116332 modulators/(106) pulse or interrupted continuous wave modulator (115) pulse amplitude modulator (116) including discrete semiconductor device having three or more electrodes
332/117332 modulators/(117) frequency modulator
332/118332 modulators/(117) frequency modulator (118) including measuring or indicating
332/119332 modulators/(117) frequency modulator (119) plural modulation
332/120332 modulators/(117) frequency modulator (119) plural modulation (120) including amplitude modulation
332/121332 modulators/(117) frequency modulator (119) plural modulation (120) including amplitude modulation (121) including electron discharge device
332/122332 modulators/(117) frequency modulator (119) plural modulation (122) including electron discharge device
332/123332 modulators/(117) frequency modulator (123) including stabilization or alternatively distortion, noise or other interference prevention, reduction, or compensation
332/124332 modulators/(117) frequency modulator (123) including stabilization or alternatively distortion, noise or other interference prevention, reduction, or compensation (124) nonlinearity reduction or compensation
332/125332 modulators/(117) frequency modulator (123) including stabilization or alternatively distortion, noise or other interference prevention, reduction, or compensation (125) automatic amplitude stabilization or control
332/126332 modulators/(117) frequency modulator (123) including stabilization or alternatively distortion, noise or other interference prevention, reduction, or compensation (126) automatic frequency stabilization or control
332/127332 modulators/(117) frequency modulator (123) including stabilization or alternatively distortion, noise or other interference prevention, reduction, or compensation (126) automatic frequency stabilization or control (127) phase or frequency locked loop
332/128332 modulators/(117) frequency modulator (123) including stabilization or alternatively distortion, noise or other interference prevention, reduction, or compensation (126) automatic frequency stabilization or control (127) phase or frequency locked loop (128) modulating signal applied to plural elements of the loop
332/129332 modulators/(117) frequency modulator (129) including microwave or distributed parameter structure
332/130332 modulators/(117) frequency modulator (129) including microwave or distributed parameter structure (130) with discrete semiconductor device
332/131332 modulators/(117) frequency modulator (129) including microwave or distributed parameter structure (131) with electron discharge device
332/132332 modulators/(117) frequency modulator (129) including microwave or distributed parameter structure (131) with electron discharge device (132) magnetron type
332/133332 modulators/(117) frequency modulator (129) including microwave or distributed parameter structure (131) with electron discharge device (133) klystron type
332/134332 modulators/(117) frequency modulator (129) including microwave or distributed parameter structure (131) with electron discharge device (134) travelling wave type
332/135332 modulators/(117) frequency modulator (135) including discrete semiconductor device
332/136332 modulators/(117) frequency modulator (135) including discrete semiconductor device (136) with varactor
332/137332 modulators/(117) frequency modulator (137) including electron discharge device
332/138332 modulators/(117) frequency modulator (137) including electron discharge device (138) particular oscillator circuit
332/139332 modulators/(117) frequency modulator (137) including electron discharge device (138) particular oscillator circuit (139) crystal oscillator type
332/140332 modulators/(117) frequency modulator (137) including electron discharge device (138) particular oscillator circuit (139) crystal oscillator type (140) with separate modulator tube (e.g., reactance tube)
332/141332 modulators/(117) frequency modulator (137) including electron discharge device (138) particular oscillator circuit (141) l-c oscillator type
332/142332 modulators/(117) frequency modulator (137) including electron discharge device (138) particular oscillator circuit (141) l-c oscillator type (142) with separate modulator tube (e.g., reactance tube)
332/143332 modulators/(117) frequency modulator (137) including electron discharge device (138) particular oscillator circuit (141) l-c oscillator type (142) with separate modulator tube (e.g., reactance tube) (143) plural modulator tubes
332/144332 modulators/(144) phase modulator
332/145332 modulators/(144) phase modulator (145) including amplitude modulator
332/146332 modulators/(144) phase modulator (146) including discrete semiconductor device
332/147332 modulators/(144) phase modulator (147) including electron discharge device
332/148332 modulators/(144) phase modulator (147) including electron discharge device (148) push-pull circuit
332/149332 modulators/(149) amplitude modulator
332/150332 modulators/(149) amplitude modulator (150) including measuring or indicating
332/151332 modulators/(149) amplitude modulator (151) plural modulation
332/152332 modulators/(149) amplitude modulator (151) plural modulation (152) including discrete semiconductor device
332/153332 modulators/(149) amplitude modulator (151) plural modulation (153) including electron discharge device
332/154332 modulators/(149) amplitude modulator (151) plural modulation (153) including electron discharge device (154) push-pull circuit
332/155332 modulators/(149) amplitude modulator (155) percent modulation control or automatic amplitude control of carrier or modulating signal
332/156332 modulators/(149) amplitude modulator (155) percent modulation control or automatic amplitude control of carrier or modulating signal (156) overmodulation prevention
332/157332 modulators/(149) amplitude modulator (155) percent modulation control or automatic amplitude control of carrier or modulating signal (157) average carrier amplitude controlled by modulating signal
332/158332 modulators/(149) amplitude modulator (155) percent modulation control or automatic amplitude control of carrier or modulating signal (158) carrier output suppressed during absence of modulating signal
332/159332 modulators/(149) amplitude modulator (159) including stabilization or alternatively distortion, noise or other interference prevention, reduction or compensation
332/160332 modulators/(149) amplitude modulator (159) including stabilization or alternatively distortion, noise or other interference prevention, reduction or compensation (160) reduction or compensation of nonlinearity in modulation characteristic
332/161332 modulators/(149) amplitude modulator (159) including stabilization or alternatively distortion, noise or other interference prevention, reduction or compensation (161) reduction of carrier phase or frequency variations or modulation
332/162332 modulators/(149) amplitude modulator (159) including stabilization or alternatively distortion, noise or other interference prevention, reduction or compensation (162) using feedback to reduce distortion, noise or other interference
332/163332 modulators/(149) amplitude modulator (163) including microwave or distributed parameter structure
332/164332 modulators/(149) amplitude modulator (163) including microwave or distributed parameter structure (164) with discrete semiconductor device
332/165332 modulators/(149) amplitude modulator (163) including microwave or distributed parameter structure (165) with electron discharge device
332/166332 modulators/(149) amplitude modulator (163) including microwave or distributed parameter structure (165) with electron discharge device (166) magnetron type
332/167332 modulators/(149) amplitude modulator (167) suppressed carrier double sideband type
332/168332 modulators/(149) amplitude modulator (167) suppressed carrier double sideband type (168) including discrete semiconductor device
332/169332 modulators/(149) amplitude modulator (167) suppressed carrier double sideband type (169) including electron discharge device
332/170332 modulators/(149) amplitude modulator (170) single or vestigial sideband type
332/171332 modulators/(149) amplitude modulator (170) single or vestigial sideband type (171) including electron discharge device
332/172332 modulators/(149) amplitude modulator (172) modulating signal applied to a bridge circuit
332/173332 modulators/(149) amplitude modulator (173) magnetic field varied by modulating signal
332/174332 modulators/(149) amplitude modulator (174) resistive or dissipative device controlled by modulating signal (e.g., loss modulator)
332/175332 modulators/(149) amplitude modulator (175) variable reactance controlled by modulating signal
332/176332 modulators/(149) amplitude modulator (176) nonlinear device controlled by modulating signal
332/177332 modulators/(149) amplitude modulator (176) nonlinear device controlled by modulating signal (177) nonlinear discrete semiconductor device
332/178332 modulators/(149) amplitude modulator (178) including discrete semiconductor device
332/179332 modulators/(149) amplitude modulator (179) including electron discharge device
332/180332 modulators/(149) amplitude modulator (179) including electron discharge device (180) push-pull circuit
332/181332 modulators/(149) amplitude modulator (179) including electron discharge device (181) plate circuit modulation
332/182332 modulators/(149) amplitude modulator (179) including electron discharge device (182) grid circuit modulation
332/183332 modulators/(183) modulation converter having pre-modulated input (e.g., fm to am)
332/184332 modulators/(183) modulation converter having pre-modulated input (e.g., fm to am) (184) between diverse pulse modulation types
332/185332 modulators/(185) miscellaneous

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