Patents
Sitemap › H03 - Basic electronic circuitry › H03H - Impedance networks, e.g. resonant circuits; Resonators › H03H 11 - Networks using active elements
Patents for H03H 11 - Networks using active elements (9,098)
07/2003
07/23/2003CN2562496Y Phase shifter of miniature radio-frequency mechanism system
07/23/2003CN1115741C Glass antenna system with impedance matching network
07/22/2003US6597900 Circuit arrangement providing impedance translation filtering
07/22/2003US6597256 Multi-circuit signal transformer
07/17/2003WO2003058791A2 Active emi filter with feed forward cancellation
07/17/2003WO2001095552A3 High frequency network receiver
07/17/2003US20030134611 Local oscillator balun using inverting circuit
07/17/2003US20030132869 Low-pass filter
07/17/2003US20030132798 Filter Circuit
07/17/2003US20030132797 High frequency tunable filter
07/16/2003EP1328062A1 Cascaded arrangement of low order filters and method of designing the same
07/16/2003CN1114997C Raidio receiver
07/15/2003US6593820 High frequency voltage controlled oscillator
07/15/2003US6593804 Controllable high frequency emphasis circuit for selective signal peaking
07/15/2003US6593803 Active filter circuit
07/15/2003US6593802 On-chip automatic tuning technique
07/15/2003US6593770 Method and device for active impedance matching
07/10/2003WO2003056711A1 Noise filter circuit
07/10/2003WO2003056700A1 Balanced gyrator and devices including the balanced gyrator
07/10/2003US20030130006 Two-stage variable-gain mixer employing shunt feedback
07/10/2003US20030128558 Active EMI filter with feed forward cancellation
07/10/2003US20030128069 Low pass filter
07/10/2003US20030128068 Low noise image-reject gm-c filter
07/10/2003US20030128067 Filtering variable offset amplifier
07/10/2003US20030128062 Delay circuit and synchronous delay apparatus
07/09/2003EP1326336A2 High Frequency Tunable Filter
07/09/2003EP1326335A1 Active broadband switch comprising two inputs and two outputs with a distributed structure, and phase control device with such a switch
07/09/2003EP1326334A2 Active RC-filtercircuit
07/09/2003EP0746934B1 A termination network and a control circuit
07/08/2003US6591091 System and method for coarse/fine PLL adjustment
07/08/2003US6590943 Radio receiver
07/03/2003WO2003055064A1 Analogue system of generating quadrature signals
07/03/2003US20030125004 Twin-T dual notch filter
07/03/2003US20030124989 Device and system having self-terminated driver and active terminator for high speed interface
07/03/2003US20030124981 Method of eliminating a DC component and filtering device obtained by this method
07/02/2003CN1113478C Integrated receiver
07/02/2003CN1113460C Attenuator
07/01/2003US6586922 Phase shift circuit and FM detector circuit
06/2003
06/26/2003WO2003052861A1 Quadrant switching method for phase shifter
06/26/2003US20030117232 Diplexer
06/26/2003US20030117212 Circuits with dynamic biasing
06/26/2003US20030116810 Programmable impedance control circuit
06/25/2003EP1320928A1 A gmc filter and method for suppressing unwanted signals introduced by the filter
06/25/2003CN1112765C Active phase splitter
06/25/2003CN1112764C Continuous time circuit and its producing method
06/24/2003US6584422 Method and apparatus for optimizing corner frequency calibration of a tunable filter using a programmable diode
06/24/2003US6584196 Electronic inductor with transmit signal telephone line driver
06/24/2003US6583662 Circuit and method for implementing an integrated continuous-time smoothing filter
06/24/2003US6583658 Balanced circuit arrangement
06/24/2003US6583652 Highly linear programmable transconductor with large input-signal range
06/19/2003US20030112543 Common mode transient reduction circuit for improving transient response of an operational transconductance amplifier
06/19/2003US20030112060 Circuits with dynamic biasing
06/19/2003US20030112059 Circuits with dynamic biasing
06/19/2003US20030111992 Variable impedance network for an integrated circuit potentiometer
06/17/2003US6580304 Apparatus and method for introducing signal delay
06/12/2003US20030107449 Conductive path compensation for matching output driver impedance
06/12/2003US20030107427 Temperature compensation for internal inductor resistance
06/11/2003EP1318602A1 Diplexer using active inductors
06/11/2003EP1166047B1 Method and circuit for correcting periodic signals of an incremental position measuring system
06/11/2003CN1423858A Interpolator having dual transistor ranks and ratiometric control
06/11/2003CN1423417A Duplex device
06/10/2003US6577212 Integrated circuit
06/10/2003US6577198 Active power splitter with impedance matching
06/10/2003US6577179 Dynamic line termination with self-adjusting impedance
06/10/2003US6577139 Impedance converter circuit
06/10/2003US6577114 Calibration circuit
06/05/2003WO2003015268A3 Analog fir-filter
06/05/2003US20030102913 Apparatus and method for compensating a high impedance attenuator
06/04/2003EP1317065A1 Pi/2 phase shifter
06/04/2003EP1149478B1 Analogue echo filter
06/04/2003CN1110897C Transconductance variable circuit and it variable bandwidth filter and gain amplifier
06/03/2003US6573788 Amplifier device with frequency-response-compensating amplifier reactance, and use of the amplifier device
06/03/2003US6573777 Variable-delay element with an inverter and a digitally adjustable resistor
06/03/2003US6573776 Timing generation circuit and method for timing generation
05/2003
05/28/2003CN1420625A 可变增益放大器及滤波电路 Variable gain amplifier and filter circuit
05/28/2003CN1110136C Apparatus and method for tuning bandpass filters
05/28/2003CN1110115C Control signal processing device and electric power system stabilizer
05/27/2003US6570444 Low noise wideband digital predistortion amplifier
05/27/2003US6570412 Filter characteristic regulating apparatus and regulating method therefor
05/27/2003US6570402 Impedance control circuit
05/22/2003US20030095006 Balanced amplifier and filter using the same
05/22/2003US20030095005 Variable gain amplifier and filter circuit
05/21/2003EP1312157A2 A novel on-chip image reject filter
05/21/2003CN1419740A Tunable integrated RF filter having switched field effect capacitors
05/21/2003CN1419340A Terminal circuit without influence by voltage
05/20/2003US6566947 Combined active impedance and filter in line drivers
05/15/2003US20030090316 Circuit for tuning an active filter
05/15/2003US20030090315 All pass filter
05/15/2003US20030089841 Wave-filtering device with an adjustable frequency bandwidth
05/14/2003CN1417945A Impedance matching circuit
05/14/2003CN1108658C Device for continuous-time filtering in digital CMOS process
05/13/2003US6563373 Filter circuit utilizing a plurality of sampling and holding circuits
05/08/2003WO2003038998A1 Compact 180 degree phase shifter
05/08/2003WO2003038994A1 Balanced transconductor and electronic device
05/08/2003US20030085732 Method and device for active impedance matching
05/08/2003US20030085717 Impedance converter circuit
05/06/2003US6559714 Signal filter with adjustable analog impedance selected by digital control
05/06/2003US6559713 Self-tracking filter
05/06/2003US6559699 Dual control analog delay element
05/01/2003WO2002071621A3 Hybrid low-pass sigma-delta modulator
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