| Patents for H03H 11 - Networks using active elements (9,098) |
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| 07/04/2013 | US20130169367 Active circulator |
| 07/04/2013 | US20130169337 Phase difference quantization circuit, delay value control circuit thereof, and delay circuit |
| 07/04/2013 | US20130169333 Front-end module having low insertion loss |
| 07/03/2013 | CN103190076A Tunable filter devices and methods |
| 07/03/2013 | CN103187968A Power distortion-based servo control systems for frequency tuning RF power sources |
| 07/03/2013 | CN103187948A Inductance-capacitance resonance circuit |
| 07/02/2013 | US8476952 Multiphase mixer |
| 06/27/2013 | WO2013095649A1 Apparatus and system for generating a signal with phase angle configuration |
| 06/27/2013 | WO2013095431A1 Low power digital phase interpolator |
| 06/27/2013 | WO2013094081A1 Resonance filter, delta-sigma a/d converter, and semiconductor device |
| 06/27/2013 | US20130163367 Clock generation circuit and semiconductor memory device employing the same |
| 06/27/2013 | US20130162315 Signal transmission/reception system |
| 06/26/2013 | CN203027219U Filter circuit of discrete device |
| 06/20/2013 | WO2013089446A1 Amplifier and filter having variable gain and cutoff frequency controlled logarithmically according to digital code |
| 06/20/2013 | WO2013088337A1 Low-noise electronic circuit simulating the behaviour of an inductance |
| 06/20/2013 | US20130156131 Method and apparatus for correcting signal dependent duty cycle errors in amplitude shift keying receivers |
| 06/20/2013 | US20130154691 Multi-phase clock generation apparatus and method |
| 06/19/2013 | CN203014760U Active filter |
| 06/19/2013 | CN102111123B Suspension difference active inducer based on positive feedback |
| 06/18/2013 | US8466729 Delay cell and digitally controlled oscillator |
| 06/18/2013 | US8466728 Enhanced delay matching buffer circuit |
| 06/13/2013 | US20130148758 Filter circuit, semiconductor integrated circuit, communication apparatus, semiconductor device, and system |
| 06/13/2013 | US20130147537 Failure detector circuit and associated method |
| 06/13/2013 | US20130147536 Semiconductor device |
| 06/13/2013 | US20130147535 Tunable active directional couplers |
| 06/12/2013 | CN202998020U Automatic frequency tuning circuit for active RC filter |
| 06/12/2013 | CN102075164B Attenuator |
| 06/11/2013 | US8461894 Low-power configurable delay element |
| 06/11/2013 | US8461893 Uniform-footprint programmable multi-stage delay cell |
| 06/11/2013 | US8461892 Interpolation circuit and interpolation system |
| 06/05/2013 | EP2599221A1 Rf isolation switch circuit |
| 06/05/2013 | CN102067457B Integrator, resonator, and oversampling A/D converter |
| 05/30/2013 | US20130135022 Vector Generator Using Octant Symmetry |
| 05/29/2013 | CN103124167A Flexible impedance matching for a microwave generator supplied with pulse current |
| 05/28/2013 | US8451043 On-chip self calibrating delay monitoring circuitry |
| 05/28/2013 | US8451042 Apparatus and system of implementation of digital phase interpolator with improved linearity |
| 05/23/2013 | WO2013048173A3 Apparatus for removing partial discharge noise and method for diagnosing partial discharge |
| 05/23/2013 | US20130127508 Signal delay circuit and signal delay method |
| 05/22/2013 | CN202949400U Adjustable type pipeline guide wave signal band-pass filter |
| 05/21/2013 | US8446229 System and method for reduced area tunable capacitors |
| 05/21/2013 | US8446200 Systems and methods for a continuous, linear, 360-degree analog phase shifter |
| 05/16/2013 | US20130123111 Electronic device having thermally managed electron path and method of thermal management of very cold electrons |
| 05/16/2013 | US20130120047 Power-supply-insensitive buffer and oscillator circuit |
| 05/15/2013 | CN103107795A Floating ground active inductor |
| 05/14/2013 | US8443034 Input vector selection for reducing current leakage in integrated circuits |
| 05/14/2013 | US8441295 Delay generator |
| 05/09/2013 | US20130113537 Pulse generator |
| 05/08/2013 | CN202931264U Electric tuning filter and LNA circuit of digital interphone |
| 05/08/2013 | CN103095248A Circuit for controlling impedance and semiconductor device including the same |
| 05/08/2013 | CN103095247A Phase compensation circuit for switched capacitor filter |
| 05/08/2013 | CN103095246A Low-pass filtering circuit |
| 05/08/2013 | CN102082558B Linear speed-regulating potentiometer |
| 05/07/2013 | US8436670 Power supply induced signal jitter compensation |
| 05/02/2013 | US20130106482 Signal delay circuit |
| 05/02/2013 | DE19841677B4 Integrierte, aktive Intergrator-Filterschaltung Built-in active integrator filter circuit |
| 05/01/2013 | CN202918256U Filter amplifier |
| 05/01/2013 | CN103078604A 有源滤波器 Active Filter |
| 05/01/2013 | CN102075163B Dual-second order unit based on common drain positive feedback |
| 05/01/2013 | CN102075162B Dual-second order unit based on common source positive feedback |
| 04/30/2013 | US8432210 Fine-grained clock skew tuning in an integrated circuit |
| 04/25/2013 | US20130099842 Temperature sensitive device |
| 04/24/2013 | EP2584699A2 Tuning method and apparatus for circuits to conform to a predetermined frequency response |
| 04/24/2013 | CN103066948A Control method for given current waveforms of resonance excitation source |
| 04/24/2013 | CN103066947A Ultra wide band large dynamic figure / analog compatible adjustable attenuator |
| 04/24/2013 | CN103066946A Combination parallel connection partial voltage type control digital/ simulation variable attenuator |
| 04/24/2013 | CN103066347A Novel low temperature co-fired ceramic (LTCC) laminated slice-type duplexer |
| 04/24/2013 | CN101836359B Precision integrated phase lock loop circuit loop filter |
| 04/23/2013 | US8427217 Phase interpolator based on an injected passive RLC resonator |
| 04/18/2013 | US20130093507 Op-R, A Solid State Filter |
| 04/18/2013 | US20130093488 Test circuit and methods for speed characterization |
| 04/18/2013 | US20130093484 Delay circuit and method for driving the same |
| 04/18/2013 | DE102005045592B4 Frequenzumsetzereinheit Frequency converter unit |
| 04/17/2013 | CN103051306A Marchand balun circuit with matching circuit |
| 04/17/2013 | CN103051305A Tuning circuit and tuning method of on-chip filter |
| 04/17/2013 | CN103051304A RC (resistance-capacitance) filter circuit with shorter establishing time delay |
| 04/17/2013 | CN101795113B Amplifier circuit with first and second output lines |
| 04/11/2013 | DE102012204428A1 Driver for magnetic resonance tomography (MRT) device has current mirror as load of differential stage, to form asymmetric output of driver |
| 04/10/2013 | CN103036528A Bootstrap band-pass filtering circuit |
| 04/09/2013 | CA2659791C Systems and methods for detecting high-impedance faults in a multi-grounded power distribution system |
| 04/04/2013 | WO2013048173A2 Apparatus for removing partial discharge noise and method for diagnosing partial discharge |
| 04/03/2013 | CN202856701U Plug-pull type adjustable equalizer |
| 04/03/2013 | CN103026625A RF isolation switch circuit |
| 04/03/2013 | CN103023458A Active power filter, duplexer and wireless communication equipment |
| 04/03/2013 | CN103023448A RF device with compensatory resonator matching topology |
| 04/03/2013 | CN101977030B Structure for correcting corner frequency of Gm-C filter by hybrid analog-digital method |
| 04/03/2013 | CN101617466B Adaptive provision of protection function settings of electrical machines |
| 03/28/2013 | US20130077149 Signal shaping circuit and light transmitting device |
| 03/28/2013 | US20130076424 System and method for reducing cross coupling effects |
| 03/28/2013 | US20130076423 Integrated Circuit With Delay Circuitry |
| 03/28/2013 | US20130075589 Ramp wave generation circuit and solid-state imaging device |
| 03/27/2013 | CN101540593B Wide-frequency distributor |
| 03/26/2013 | US8406391 Active impedance synthesis circuit, for example for XDSL splitters |
| 03/21/2013 | US20130069716 Tunable voltage-controlled pseudo-resistor |
| 03/21/2013 | US20130069703 Uniform-footprint programmable-skew multi-stage delay cell |
| 03/21/2013 | DE102012108547A1 Breitbandiger LC-I/Q-Phasenverschieber mit niedrigem Verlust Wideband LC-I / Q phase shifter with low loss |
| 03/20/2013 | CN102983837A Bootstrap high-pass filtering circuit |
| 03/20/2013 | CN102983836A Automatic frequency tuning circuit of active resistance-capacitance (RC) filter |
| 03/20/2013 | CN102983835A Level ending low-pass filtering circuit |
| 03/20/2013 | CN102983834A Filter amplifier |
| 03/19/2013 | US8400201 Delay signal generator |