USPC Patent Classifications

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Class 329 demodulators
uspcdescription
329/300329 demodulators/(300) frequency shift keying or minimum shift keying demodulator
329/301329 demodulators/(300) frequency shift keying or minimum shift keying demodulator (301) including discrete semiconductor device
329/302329 demodulators/(300) frequency shift keying or minimum shift keying demodulator (302) input signal combined with local oscillator or carrier frequency signal
329/303329 demodulators/(300) frequency shift keying or minimum shift keying demodulator (303) including logic element (e.g., logic gate or flip-flop
329/304329 demodulators/(304) phase shift keying or quadrature amplitude demodulator
329/305329 demodulators/(304) phase shift keying or quadrature amplitude demodulator (305) including discrete semiconductor device
329/306329 demodulators/(304) phase shift keying or quadrature amplitude demodulator (306) input signal combined with local oscillator or carrier frequency signal
329/307329 demodulators/(304) phase shift keying or quadrature amplitude demodulator (306) input signal combined with local oscillator or carrier frequency signal (307) including phase or frequency locked loop
329/308329 demodulators/(304) phase shift keying or quadrature amplitude demodulator (306) input signal combined with local oscillator or carrier frequency signal (307) including phase or frequency locked loop (308) with parallel signal combiners (e.g., costas loop)
329/309329 demodulators/(304) phase shift keying or quadrature amplitude demodulator (306) input signal combined with local oscillator or carrier frequency signal (307) including phase or frequency locked loop (308) with parallel signal combiners (e.g., costas loop) (309) including logic element (e.g., logic gate or flip-flop)
329/310329 demodulators/(304) phase shift keying or quadrature amplitude demodulator (310) including logic element (e.g., logic gate or flip-flop)
329/311329 demodulators/(311) pulse or interrupted continuous wave demodulator
329/312329 demodulators/(311) pulse or interrupted continuous wave demodulator (312) pulse width demodulator
329/313329 demodulators/(311) pulse or interrupted continuous wave demodulator (313) pulse position, frequency, phase or spacing demodulator
329/314329 demodulators/(311) pulse or interrupted continuous wave demodulator (313) pulse position, frequency, phase or spacing demodulator (314) including discrete semiconductor device
329/315329 demodulators/(315) frequency modulation demodulator
329/316329 demodulators/(315) frequency modulation demodulator (316) plural demodulation
329/317329 demodulators/(315) frequency modulation demodulator (316) plural demodulation (317) including amplitude demodulation
329/318329 demodulators/(315) frequency modulation demodulator (318) having specific distortion, noise or other interference prevention, reduction or compensation
329/319329 demodulators/(315) frequency modulation demodulator (318) having specific distortion, noise or other interference prevention, reduction or compensation (319) using feedback to reduce distortion, noise or other interference
329/320329 demodulators/(315) frequency modulation demodulator (318) having specific distortion, noise or other interference prevention, reduction or compensation (320) by cancelling distortion, noise or other interference
329/321329 demodulators/(315) frequency modulation demodulator (318) having specific distortion, noise or other interference prevention, reduction or compensation (321) using amplitude limiting within the demodulator
329/322329 demodulators/(315) frequency modulation demodulator (322) including microwave or distributed parameter structure
329/323329 demodulators/(315) frequency modulation demodulator (323) input signal combined with local oscillator or carrier frequency signal
329/324329 demodulators/(315) frequency modulation demodulator (323) input signal combined with local oscillator or carrier frequency signal (324) input signal applied directly to local oscillator
329/325329 demodulators/(315) frequency modulation demodulator (323) input signal combined with local oscillator or carrier frequency signal (325) including phase or frequency locked loop
329/326329 demodulators/(315) frequency modulation demodulator (323) input signal combined with local oscillator or carrier frequency signal (325) including phase or frequency locked loop (326) including discrete semiconductor device
329/327329 demodulators/(315) frequency modulation demodulator (327) input signal split into plural signals
329/328329 demodulators/(315) frequency modulation demodulator (327) input signal split into plural signals (328) including piezoelectric resonant element
329/329329 demodulators/(315) frequency modulation demodulator (327) input signal split into plural signals (329) using a transformer to split input signal
329/330329 demodulators/(315) frequency modulation demodulator (327) input signal split into plural signals (329) using a transformer to split input signal (330) signals taken from primary and secondary windings
329/331329 demodulators/(315) frequency modulation demodulator (327) input signal split into plural signals (329) using a transformer to split input signal (330) signals taken from primary and secondary windings (331) including plural detector diodes (e.g., ratio detector type)
329/332329 demodulators/(315) frequency modulation demodulator (327) input signal split into plural signals (329) using a transformer to split input signal (332) signals taken from plural secondary windings
329/333329 demodulators/(315) frequency modulation demodulator (327) input signal split into plural signals (329) using a transformer to split input signal (332) signals taken from plural secondary windings (333) including plural detector diodes (e.g., ratio detector type)
329/334329 demodulators/(315) frequency modulation demodulator (327) input signal split into plural signals (329) using a transformer to split input signal (332) signals taken from plural secondary windings (333) including plural detector diodes (e.g., ratio detector type) (334) including resonant circuits tuned above and below input signal carrier frequency
329/335329 demodulators/(315) frequency modulation demodulator (327) input signal split into plural signals (329) using a transformer to split input signal (335) including plural detector diodes (e.g., ratio detector type)
329/336329 demodulators/(315) frequency modulation demodulator (327) input signal split into plural signals (336) input signal combined with phase shifted or delayed portion of input signal
329/337329 demodulators/(315) frequency modulation demodulator (327) input signal split into plural signals (336) input signal combined with phase shifted or delayed portion of input signal (337) including lc resonant phase shift circuit
329/338329 demodulators/(315) frequency modulation demodulator (327) input signal split into plural signals (338) input signal split by lc resonant circuit
329/339329 demodulators/(315) frequency modulation demodulator (327) input signal split into plural signals (338) input signal split by lc resonant circuit (339) including lc resonant circuits tuned above and below input signal carrier frequency
329/340329 demodulators/(315) frequency modulation demodulator (327) input signal split into plural signals (340) including plural detector diodes (e.g., ratio detector type)
329/341329 demodulators/(315) frequency modulation demodulator (341) input signal converted to and processed in pulse form (e.g., pulse counter or digital type demodulator)
329/342329 demodulators/(315) frequency modulation demodulator (341) input signal converted to and processed in pulse form (e.g., pulse counter or digital type demodulator) (342) including discrete semiconductor device
329/343329 demodulators/(315) frequency modulation demodulator (341) input signal converted to and processed in pulse form (e.g., pulse counter or digital type demodulator) (343) including digital logic circuitry
329/344329 demodulators/(315) frequency modulation demodulator (344) including signal passed through single demodulating path including resonant circuit
329/345329 demodulators/(345) phase modulation demodulator
329/346329 demodulators/(345) phase modulation demodulator (346) input signal combined with local oscillator or carrier frequency signal
329/347329 demodulators/(347) amplitude modulation demodulator
329/348329 demodulators/(347) amplitude modulation demodulator (348) having plural demodulation outputs
329/349329 demodulators/(347) amplitude modulation demodulator (349) having specific distortion, noise or other interference prevention, reduction or compensation
329/350329 demodulators/(347) amplitude modulation demodulator (349) having specific distortion, noise or other interference prevention, reduction or compensation (350) automatic amplitude stabilization or control
329/351329 demodulators/(347) amplitude modulation demodulator (349) having specific distortion, noise or other interference prevention, reduction or compensation (351) nonlinearity reduction or compensation
329/352329 demodulators/(347) amplitude modulation demodulator (349) having specific distortion, noise or other interference prevention, reduction or compensation (352) temperature compensation
329/353329 demodulators/(347) amplitude modulation demodulator (349) having specific distortion, noise or other interference prevention, reduction or compensation (353) noise reduction or compensation
329/354329 demodulators/(347) amplitude modulation demodulator (354) including microwave or distributed parameter structure
329/355329 demodulators/(347) amplitude modulation demodulator (354) including microwave or distributed parameter structure (355) with electron discharge device
329/356329 demodulators/(347) amplitude modulation demodulator (356) suppressed carrier double sideband type
329/357329 demodulators/(347) amplitude modulation demodulator (357) single or vestigial sideband type
329/358329 demodulators/(347) amplitude modulation demodulator (358) input signal combined with local oscillator or carrier frequency signal (e.g., synchronous demodulator)
329/359329 demodulators/(347) amplitude modulation demodulator (358) input signal combined with local oscillator or carrier frequency signal (e.g., synchronous demodulator) (359) input signal applied directly to local oscillator
329/360329 demodulators/(347) amplitude modulation demodulator (358) input signal combined with local oscillator or carrier frequency signal (e.g., synchronous demodulator) (360) including phase or frequency locked loop
329/361329 demodulators/(347) amplitude modulation demodulator (358) input signal combined with local oscillator or carrier frequency signal (e.g., synchronous demodulator) (361) including sampling, gating, or switching
329/362329 demodulators/(347) amplitude modulation demodulator (358) input signal combined with local oscillator or carrier frequency signal (e.g., synchronous demodulator) (361) including sampling, gating, or switching (362) with three or more terminal discrete semiconductor device
329/363329 demodulators/(347) amplitude modulation demodulator (363) input signal split into plural signals
329/364329 demodulators/(347) amplitude modulation demodulator (363) input signal split into plural signals (364) including three or more terminal discrete semiconductor device
329/365329 demodulators/(347) amplitude modulation demodulator (363) input signal split into plural signals (365) including diode demodulator device
329/366329 demodulators/(347) amplitude modulation demodulator (363) input signal split into plural signals (365) including diode demodulator device (366) plural diodes
329/367329 demodulators/(347) amplitude modulation demodulator (367) including regenerative feedback in non-oscillating demodulator
329/368329 demodulators/(347) amplitude modulation demodulator (368) electron discharge demodulator device having more than two electrodes (e.g., triode, tetrode etc.)
329/369329 demodulators/(347) amplitude modulation demodulator (369) including three or more terminal discrete semiconductor demodulator device
329/370329 demodulators/(347) amplitude modulation demodulator (370) including diode demodulator device
329/371329 demodulators/(347) amplitude modulation demodulator (371) coherer type demodulator
329/372329 demodulators/(372) miscellaneous

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