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)
01/2000
01/04/2000US6011435 Transmission-line loss equalizing circuit
01/04/2000US6011431 Automatically tracking multiple-pole active filter
01/04/2000US6011418 Method and apparatus for trimming a signal
12/1999
12/29/1999EP0967735A1 Filter arrangement applicable to ADSL splitters
12/29/1999EP0967602A1 A temperature/voltage compensation circuit
12/29/1999EP0697150B1 Adjustable resistance device with control circuit
12/28/1999US6008691 Frequency-dependent resistor
12/26/1999CA2275007A1 Filter arrangement applicable to adsl splitters
12/22/1999CN1239356A Clock controlling method and its control circuit
12/16/1999WO1999065217A1 A method for separating narrowband and broadband services on a transmission link and a splitter element
12/16/1999DE19856091A1 Control signal processor for power circuit regulator in generator stimulation system,
12/15/1999EP0801851A4 Damped emi input filter for power factor correction circuits
12/14/1999US6002717 Method and apparatus for adaptive equalization using feedback indicative of undercompensation
12/14/1999US6002296 Filter circuit with an intermittent constant current with constant period
12/14/1999CA2182383C Filtering
12/14/1999CA2014968C Active filter circuit
12/08/1999CN1237819A Control signal processing device and electric power system stabilizer
12/07/1999US5999134 Glass antenna system with an impedance matching network
12/07/1999US5999043 On-chip high resistance device for passive low pass filters with programmable poles
12/07/1999US5999042 Switchable response active filter
12/01/1999CN1237037A Active low-pass filter
11/1999
11/30/1999US5996004 Concurrent programming apparatus and method for electronic devices
11/30/1999US5994966 Transistorized two-port variable-conductance network
11/30/1999US5994952 Narrow band-pass interferometric filter having enhanced operational characteristics
11/30/1999US5994951 Automatic-tuning circuit for integrated continuous-time MOSFET-C filters
11/30/1999US5994939 Variable delay cell with a self-biasing load
11/24/1999CN1236221A Active filter circuit
11/24/1999CN1236194A Delay circuit
11/23/1999US5991606 Apparatus for filtering signals of an antenna arrangement and a sender/receiver arrangement with two or more antennae
11/23/1999US5991339 Adaptive equalization using a minimum- jitter criterion
11/17/1999EP0957578A1 Transconductance control circuit, particularly for continous-time circuits
11/16/1999US5986518 Distributed MMIC active quadrature hybrid and method for providing in-phase and quadrature-phase signals
11/16/1999US5986511 Frequency dependent impedance
11/09/1999US5983082 Phase quadrature signal generator having a variable phase shift network
11/09/1999US5982228 Frequency tuning apparatus and method for continuous-time filters
11/04/1999WO1999056389A1 Amplifier
11/04/1999WO1999056339A1 Microwave channelized bandpass filter having two channels
11/04/1999CA2321624A1 Microwave channelized bandpass filter having two channels
11/02/1999US5978487 Spectrum displaying device for audio device
11/02/1999US5978417 Adaptive cable equalizer
11/02/1999US5977809 Programmable non-overlap clock generator
10/1999
10/27/1999CN1233107A Variable delay circuit
10/26/1999US5974208 Sliding-frequency guiding filter for soliton transmission
10/21/1999WO1999053614A1 Gyrator
10/20/1999EP0951144A2 Filter circuit
10/20/1999EP0824788B1 Isolating circuit for telephone apparatus
10/19/1999US5969582 Impedance matching circuit for power amplifier
10/19/1999US5969561 Integrated circuit having a variable RF resistor
10/12/1999US5966297 Large bandwidth analog isolation circuit
10/12/1999US5966046 Large swing wide band programmable active filter
10/12/1999CA2064327C Broadband phase shifter and vector modulator
10/07/1999WO1999050970A1 A method and an arrangement in an analog line interface circuit
10/07/1999WO1999050959A1 Switchable response active filter
10/07/1999WO1999050958A2 Switchable response active filter
10/07/1999CA2326429A1 A method and an arrangement in an analog line interface circuit
10/05/1999US5963112 Cascaded higher order filter with low sensitivity to component values and a method for designing the same
10/05/1999US5963084 Gm-C cell with two-stage common mode control and current boost
10/05/1999US5963074 Programmable delay circuit having calibratable delays
10/05/1999US5963073 π/2 phase shifter
09/1999
09/29/1999CN1230049A Semiconductor phase shifter having high-pass signal path and low-pass signal path connected in parallel
09/28/1999US5960183 Signal processing circuit comprising switched transconductors
09/28/1999US5959510 Second order filter with low sensitivity to component values and a method for designing the same
09/21/1999US5955911 On-chip differential resistance technique with noise immunity and symmetric resistance
09/21/1999US5955900 Equivalent inductance circuit having a common input/output terminal
09/21/1999US5954660 Apparatus for filtering cardiac signals
09/16/1999WO1999046858A1 Broadband piezoelectric shunts for structural vibration control
09/14/1999US5953379 For a communication device
09/14/1999US5952885 Current-to-voltage converter with highpass filter function
09/14/1999US5952878 Second order differential highpass filter
09/14/1999US5952877 Integrated resistor for continuous time signal processing applications
09/08/1999CN1228207A Receiver and filter arrangement comprising polyphase filters
09/07/1999US5949820 Method for optimizing an equalization and receive filter
09/07/1999US5949295 Integratable tunable resonant circuit for use in filters and oscillators
09/07/1999US5949267 Circuit arrangement for generating signals with different phases
09/01/1999EP0939486A2 Filter circuit
08/1999
08/31/1999US5945899 Permanent magnet twister
08/31/1999US5945889 Method and apparatus for tuning high Q bandpass filters using pulse excitation
08/31/1999US5945874 Circuit configuration for smoothing a voltage
08/26/1999CA2263225A1 Radio-frequency variable attenuator
08/24/1999US5942935 Filter circuit
08/24/1999US5942929 Active phase splitter
08/17/1999US5940441 Integrated adaptive cable equalizer using a continuous-time filter
08/17/1999US5939950 Voltage controlled oscillator having a controllable duty cycle
08/17/1999US5939918 For an input signal
08/17/1999US5939917 Voltage-controlled phase shifter
08/17/1999US5939916 Phase shifter suitable for clock recovery systems
08/17/1999US5939896 Coupling arrangement in a terminating circuit
08/12/1999WO1999040716A2 Active splitter
08/12/1999WO1999040679A1 Apparatus and methods for tuning bandpass filters
08/11/1999CN1225759A Method and device for continuous-time filtering in digital CMOS process
08/10/1999US5936486 Active filter with surface acoustic wave resonator filter having multiple resonant modes
08/10/1999US5936389 For connection to a bus line
08/05/1999WO1999039433A1 Active impedance converter
08/03/1999US5931898 Finite impulse response filter
08/03/1999CA2130231C Impedance matching process and device for a transmitter and/or a receiver and integrated circuit and transmission system using same
07/1999
07/28/1999EP0932254A2 Adjustable highpass circuit
07/27/1999US5929700 Control system
07/27/1999US5929699 Integrated active integrator filter with compensated unity gain bandwidth
07/27/1999US5929698 Filter circuit arrangement
07/22/1999WO1999037024A1 A variable delay cell with a self-biasing load
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