| Patents for H03H 11 - Networks using active elements (9,098) |
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| 04/23/2009 | US20090103332 Charging probe circuit |
| 04/23/2009 | US20090102533 Temperature Independent Delay Circuits |
| 04/23/2009 | US20090102523 Linear digital phase interpolator and semi-digital delay locked loop (dll) |
| 04/23/2009 | DE19882089B4 Verstärker zur kontinuierlichen schmalbandigen Signalverstärkung mit hohem Verstärkungsfaktor und Verstärkungsverfahren Continuous narrow-band amplifier for signal amplification with a high gain and amplification method |
| 04/23/2009 | DE102007019745B4 Kaskadierter Phasenschieber Cascaded phase shift |
| 04/22/2009 | EP2051378A1 Inductance enchancement circuit |
| 04/22/2009 | CN101414852A Output coupling and filter circuit for power line carrier communication |
| 04/22/2009 | CN101414810A Transistor resistance and correlation method |
| 04/22/2009 | CN100481726C Transduction filter circuit |
| 04/21/2009 | US7522023 Gyrator with feedback resistors |
| 04/21/2009 | US7521977 Voltage-controlled oscillator generating output signal finely tunable in wide frequency range and variable delay circuits included therein |
| 04/16/2009 | US20090096517 Filtering apparatus and method for dual-band sensing circuit |
| 04/16/2009 | DE102007021978B4 Aktives Kompensationsfilter Active compensation filter |
| 04/15/2009 | EP1374398B1 Circuit and method for input side impedance matching of a power amplifier in an electronic device |
| 04/15/2009 | CN101409538A High-pass filter |
| 04/15/2009 | CN101409533A 跨导器 Transconductor |
| 04/15/2009 | CN100479475C Central office interface techniques for digital subscriber lines |
| 04/15/2009 | CN100479291C Method, device and system to control integrated circuit resonance |
| 04/14/2009 | US7518429 Delay circuit |
| 04/14/2009 | US7518428 Phase compensation circuit and power circuit having same |
| 04/09/2009 | WO2009044441A1 Single differential converter and rf receiver |
| 04/09/2009 | WO2009007663A3 Nonlinear filtering device |
| 04/09/2009 | WO2007130442A3 System and method for generating local oscillator (lo) signals for a quadrature mixer |
| 04/07/2009 | US7515895 System and method for on-chip filter tuning |
| 04/02/2009 | WO2009042060A2 Constant phase digital attenuator with on-chip matching circuitry |
| 04/02/2009 | US20090085688 Semiconductor Circuit, and Computing Device and Communications Device Using the Same |
| 04/02/2009 | US20090085656 Device and Method for Limiting Di/Dt Caused by a Switching FET of an Inductive Switching Circuit |
| 04/02/2009 | DE10200875B4 Einstellschaltung für die Übergangsverzögerung eines gepulsten Signals Adjusting for the transition delay of a pulsed signal |
| 04/01/2009 | CN101401311A Radio receiver |
| 04/01/2009 | CN101401302A Radio receiver |
| 04/01/2009 | CN101399529A Bipolar bandwidth adjustable low-pass filter |
| 03/31/2009 | US7512389 Active inductors using bipolar silicon transistors |
| 03/31/2009 | US7512386 Method and apparatus providing integrated load matching using adaptive power amplifier compensation |
| 03/31/2009 | US7511547 Delay circuit, and testing apparatus |
| 03/31/2009 | US7511546 Synchronous memory device with output driver controlller |
| 03/26/2009 | US20090079489 Constant phase digital attenuator with on-chip matching circuitry |
| 03/26/2009 | US20090079487 Time Delay Line with Low Sensitivity to Process Variations |
| 03/25/2009 | EP2040197A2 Method and apparatus for analysis of variables |
| 03/24/2009 | US7508246 Performance variation compensating circuit and method |
| 03/19/2009 | WO2009035767A1 Input circuitry for transistor power amplifier and method for designing such circuitry |
| 03/19/2009 | WO2009034659A1 Tunable impedance matching circuit |
| 03/19/2009 | US20090074048 Equalizer system having a tunable active inductor |
| 03/18/2009 | EP2036203A1 Loop filter with noise cancellation |
| 03/18/2009 | EP1851855B1 Receiver comprising an amplifier |
| 03/18/2009 | CN201210720Y Circuit device implementing machine opening music of television set |
| 03/18/2009 | CN101388655A Signal selecting device |
| 03/17/2009 | US7504872 Generic flexible timer design |
| 03/12/2009 | WO2009032415A1 Method for designing input circuitry for transistor power amplifier |
| 03/12/2009 | WO2009012867A3 Plasma supply device |
| 03/12/2009 | US20090066390 Timing control circuit and semiconductor storage device |
| 03/12/2009 | US20090066389 Power Controlling Apparatus Applied to Biochip and Operating Method Thereof |
| 03/11/2009 | CN100468970C Output driver impedance controller and its integrated circuits and control method |
| 03/11/2009 | CN100468969C Output impedance bias voltage compensation system and output impedance regulating method |
| 03/11/2009 | CN100468968C Transduction tuned circuit and associated method |
| 03/10/2009 | US7501973 High-resolution time-to-digital converter |
| 03/05/2009 | WO2009029721A1 Differential to single-ended conversion for radio frequency devices |
| 03/05/2009 | WO2007070286A8 Method and apparatus for capacitance multiplication within a phase locked loop |
| 03/05/2009 | US20090058492 Electronic isolator |
| 03/05/2009 | US20090058488 Delay circuit, semiconductor control circuit, display device, and electronic device |
| 03/05/2009 | US20090058487 Delay circuit |
| 03/05/2009 | US20090058466 Differential pair circuit |
| 03/03/2009 | US7499963 Complex filter with higher order pole |
| 03/03/2009 | US7498859 Driving device using CMOS inverter |
| 03/03/2009 | US7498858 Interpolator systems with linearity adjustments and related methods |
| 03/03/2009 | US7498552 Calibratable microwave circuit with illuminable GaAs-FET, calibrating device and process |
| 02/26/2009 | US20090051410 Integrated powered device (PD) and physical layer (PHY) chip |
| 02/26/2009 | US20090051399 Electronic circuit with low noise delay circuit |
| 02/26/2009 | DE102008039399A1 Aktive Symmetriergliedschaltung Active balun |
| 02/26/2009 | DE102008039120A1 Selbstabstimmendes Filter Self-tuning filter |
| 02/25/2009 | EP1510001B1 An amplifier circuit, gyrator circuit, filter device and method for amplifying a signal |
| 02/25/2009 | CN101375496A Circuit for adjusting an impedance |
| 02/24/2009 | US7496133 Multi-rate on-chip OCN filter for a transceiver system |
| 02/24/2009 | US7495495 Digital I/O timing control |
| 02/24/2009 | US7495494 Parallel trimming method and apparatus for a voltage controlled delay loop |
| 02/24/2009 | US7495450 Device and method for detecting anomolies in a wire and related sensing methods |
| 02/19/2009 | US20090045864 Variable delay circuit and delay correction method |
| 02/18/2009 | CN201196658Y Analog resistor circuit used for device aging screening vehicle |
| 02/18/2009 | CN101369806A Fan and fan system and its wave filter |
| 02/17/2009 | US7492238 Radio-frequency switching circuit and semiconductor device |
| 02/17/2009 | US7492204 Generic flexible timer design |
| 02/12/2009 | US20090039954 Fan system and fan with filter |
| 02/12/2009 | US20090039939 Variable delay circuit, testing apparatus, and electronic device |
| 02/12/2009 | US20090039938 Delaying stage selecting circuit and method thereof |
| 02/11/2009 | EP2023486A1 Cutoff frequency adjusting method, GmC filter circuit and semiconductor device |
| 02/11/2009 | CN101366178A Automatic adjustment device for filter |
| 02/11/2009 | CN100461632C Negative feedback circuit, as well as method and device for implementing impedance match of transmission line in chip by using the circuit |
| 02/11/2009 | CN100461631C Programmable/adjustable active electric resistance-capacitance wave filter and method thereof |
| 02/10/2009 | US7490273 Auto-calibration method for delay circuit |
| 02/10/2009 | US7489914 Multi-band RF transceiver with passive reuse in organic substrates |
| 02/10/2009 | US7489179 Electronic high-frequency switch and attenuator with said high-frequency switches |
| 02/05/2009 | US20090033440 Active resonant circuit with resonant-frequency tunability |
| 02/05/2009 | US20090033410 Power electronics devices with integrated control circuitry |
| 02/05/2009 | US20090033397 Delay time adjusting method of semiconductor integrated circuit |
| 02/05/2009 | US20090033396 setup/hold time control circuit |
| 02/05/2009 | US20090033395 Multiple source-single drain field effect semiconductor device and circuit |
| 02/04/2009 | CN101359903A Semiconductor integrated circuit |
| 02/04/2009 | CN100459429C Antenna matching apparatus for mobile communication terminal and control method thereof |
| 02/04/2009 | CN100459425C Signal amplifier and integrated circuit |
| 02/04/2009 | CN100459362C No distortion digital differential filtering method |
| 02/03/2009 | US7486125 Delay cells and delay line circuits having the same |