Patents for H03H 11 - Networks using active elements (9,098)
06/2004
06/24/2004US20040119558 Attenuator
06/24/2004US20040119556 Designing methods and circuits for impedance matching
06/24/2004US20040119520 Setup/hold time control device
06/23/2004EP1430600A1 Active tunable filter circuit
06/23/2004CN1507691A Method and device for adjusting an active filter
06/23/2004CN1507159A Output wave filter for delta-sigma modulator and digital signal processor with the same output filter
06/23/2004CN1507151A Variable impedance network for integrated circuit
06/23/2004CN1155152C Amplifier
06/22/2004US6754478 CMOS low noise amplifier
06/22/2004US6754098 Semiconductor memory device
06/22/2004US6753730 Differential amplifier and filter circuit using the same
06/22/2004US6753725 Low pass filter
06/17/2004US20040113721 MLC frequency selective circuit structures
06/16/2004CN1154228C Circuit arrangement with a quadripole filtering circuit
06/10/2004US20040108892 Gigabit ethernet transceiver with analog front end
06/09/2004EP1427103A2 CMOS differential voltage controlled logarithmic attenuator and method
06/09/2004EP1426983A1 Multi-track integrated spiral inductor
06/09/2004EP1256166B1 Active isolated-integrator low-pass filter with attenuation poles
06/09/2004CN1503401A Matching unit
06/08/2004US6748076 Method for separating narrowband and broadband services on a transmission link and a splitter element
06/08/2004US6747584 Aggregate beamformer for use in a directional receiving array
06/08/2004US6747531 Circuit and method for input side impedance matching of a power amplifier in an electronic device
06/08/2004US6747500 Compact delay circuit for CMOS integrated circuits used in low voltage low power devices
06/08/2004US6747499 Tunable quadrature phase shifter using an all-pass circuit
06/08/2004CA2291540C Device for compensating process and operating parameter variations in cmos integrated circuits
06/08/2004CA2289501C Gyrator with loop amplifiers connected to inductive elements
06/03/2004WO2004047291A1 Filter device
06/03/2004WO2004046652A2 Device and method for detecting anomolies in a wire and related sensing methods
06/03/2004US20040105410 Multi-rate on-chip OCN filter for a transceiver system
06/03/2004US20040104746 Transconductance varying circuit of transconductor circuit, varying bandwidth filter circuit using the same and digital tuning circuit of transconductor-capacitor filter
06/03/2004DE19720017B4 90°-Phasenschieber 90 ° phase shifter
06/02/2004EP1424773A1 Circuit device for realising a non-linear reactive elements scale network
06/01/2004US6744307 Filter circuit
06/01/2004US6744306 Filter circuit
05/2004
05/27/2004US20040100322 Adjusting the trans-conductance of a filter
05/27/2004US20040100315 Switched coupler type digital phase shifter using quadrature generator
05/26/2004EP1422823A2 Matching unit with switching means for VHF/UHF bands
05/26/2004EP1421688A2 Analog fir-filter
05/26/2004EP1421687A1 Tunable quadrature phase shifter
05/26/2004EP1421686A1 Integrated rc filter
05/26/2004EP1421546A2 Method and apparatus for analysis of variables
05/26/2004CN1499712A 高频开关模块 Frequency switch module
05/26/2004CN1151605C Vector compounding phase shifter
05/26/2004CN1151604C Circuit for generating resistance between input/output rermial and its method
05/25/2004US6741413 Common mode transient reduction circuit for improving transient response of an operational transconductance amplifier
05/25/2004US6741120 Low power active filter and method
05/20/2004US20040095513 Quadratic video demodulation with baseband nyquist filter
05/20/2004US20040095209 Capacitance adjusting circuit
05/19/2004EP1046233B1 Radio receiver
05/18/2004US6738601 Adaptive radio transceiver with floating MOSFET capacitors
05/18/2004US6738001 Semiconductor integrated circuit
05/18/2004US6737944 Active inductor
05/18/2004US6737851 Calibration circuit
05/13/2004US20040091035 Active filter circuit with dynamically modifiable internal gain
05/13/2004US20040090255 Delay circuit with delay relatively independent of process, voltage, and temperature variations
05/13/2004US20040090252 Apparatus and method for introducing signal delay
05/13/2004DE10346928A1 Verzögerungseinstellungsschaltung Delay adjustment circuit
05/13/2004DE10345691A1 Integrierte Schaltung Integrated circuit
05/11/2004US6734767 Diplexer
05/11/2004US6734722 Method for reducing area in continuous-time filter for low frequency applications
05/06/2004US20040085128 Gigabit ethernet transceiver with analog front end
05/06/2004US20040085125 Gigabit ethernet transceiver with anjalog front end
05/06/2004US20040085124 Gigabit ethernet transceiver with analog front end
05/06/2004US20040085123 Integrated circuit arrangement comprising an active filter and a method for tuning an active filter
05/06/2004US20040085113 Method and device for generating delay signal
05/06/2004US20040085112 Phase shift circuit and pahse shifter
05/06/2004DE10249050A1 Adjustment of parameters for analog filter of Cauer or elliptical type has circuit producing Cauer word triplets and feeding control signal to filter
05/05/2004CN1148873C Method for controlling communication system, single chip RF communication system and RF communication system
05/04/2004US6731160 Adjustable bandwidth high pass filter for large input signal, low supply voltage applications
04/2004
04/29/2004US20040081314 Electronic inductor with transmit signal telephone line driver
04/29/2004US20040080353 Circuit
04/28/2004EP1413058A1 Delta filter with an adaptive time window for protective relays
04/27/2004US6728381 Noise reducing circuit
04/27/2004US6728370 Method and apparatus for impedance matching
04/27/2004US6727756 Single-ended-to-differential converter with common-mode voltage control
04/22/2004WO2002103901A8 Active filter
04/22/2004US20040075482 Delay unit for periodic signals
04/22/2004US20040075481 Digitally-programmable delay line for multi-phase clock generator
04/22/2004DE10196233T5 Nachlauf- und Abschwächungs-Schaltung und Verfahren für DACs mit geschalteten Stromquellen Track and attenuation circuit and method for DACs with switched current sources
04/21/2004EP1411726A2 Apparatus for adapting the signal level between a signal input and a signal output
04/15/2004WO2004032193A2 Large-area nanoenabled macroelectronic substrates and uses therefor
04/15/2004WO2004032191A2 Applications of nano-enabled large area macroelectronic substrates incorporating nanowires and nanowire composites
04/15/2004US20040073595 Non-reciprocal network element that produces an input impedance that is a function of the multiplication-division of its load impedances
04/15/2004US20040070443 Ladder filter, analog equalizer and signal readout system
04/15/2004US20040070437 Delay adjustment circuit
04/15/2004CA2499965A1 Large-area nanoenabled macroelectronic substrates and uses therefor
04/15/2004CA2499950A1 Applications of nano-enabled large area macroelectronic substrates incorporating nanowires and nanowire composites
04/14/2004EP1408611A2 Balanced programmable delay element
04/14/2004EP0760179B1 Impedance circuit for a miniature hearing aid
04/14/2004EP0756783B1 Impedance emulator
04/14/2004CN1146109C Method for eliminating de. component and filtering device obtained by using said method
04/13/2004US6721427 Analog filter for digital audio system and audio amplifier for using the same
04/13/2004US6720850 Variable attenuator
04/13/2004US6720828 Apparatus and method for compensating a high impedance attenuator
04/13/2004US6720817 All NPN class-AB log-domain integrator with supporting input and output circuitry for low-voltage and high-frequency continuous-time filtering
04/13/2004US6720795 Active termination network
04/08/2004US20040066236 Variable inductor, oscillator including the variable inductor and radio terminal comprising this oscillator, and amplifier including the variable inductor and radio terminal comprising this amplifier
04/08/2004US20040066226 Minimizing noise in data channels implemented using frequency division multiplexing
04/08/2004US20040066223 Balanced programmable delay element
04/08/2004US20040066222 Non-iterative introduction of phase delay into signal without feedback
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