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)
01/1999
01/19/1999US5861765 Analogue delay circuit with a constant delay time
01/14/1999WO1999001932A1 Mains filter circuit arrangement
01/14/1999WO1999001931A1 Impedance matching circuit for power amplifier
01/13/1999CN1204890A Matching circuit and method for matching transistor circuit
01/12/1999US5859566 Electronic circuit comprising complementary transconductors for filters and oscillators
01/05/1999US5856757 gm-C cell with two stage common mode control and current boost
12/1998
12/30/1998WO1998045942A3 Receiver and filter arrangement comprising polyphase filters
12/30/1998EP0887927A1 TDMA master-slave filter tuning
12/30/1998EP0886913A1 A cmos microwave multiphase voltage controlled oscillator
12/30/1998EP0709010A4 Power coupler for coupling power from a transmission line to a node thereon
12/30/1998CN1203485A Device and method for controlling frequency characteristic of filter
12/30/1998CN1203463A Glass antenna system with impedance matching network
12/23/1998WO1998058449A2 Programmable delay circuit having calibratable delays
12/23/1998EP0885456A1 Increasing the dynamic range of image sensors
12/23/1998CN1202763A Delay circuit device
12/22/1998US5852385 Voltage controlled oscillator circuit composed of OTA-C filters
12/17/1998WO1998057430A2 A gm-C CELL WITH TWO-STAGE COMMON MODE CONTROL AND CURRENT BOOST
12/16/1998EP0884859A2 Extended feedback circuit for impedance matching and voltage isolation
12/15/1998US5850163 Active inductor oscillator with wide frequency range
12/10/1998WO1998056110A1 Narrow band-pass interferometric filter having enhanced operational characteristics
12/09/1998EP0883244A1 Filter circuit
12/09/1998EP0883243A2 A matching circuit and a method for matching a transistor circuit
12/09/1998EP0883237A1 Radio receiver and method of operation
12/09/1998EP0882361A1 Wideband signal distribution system
12/08/1998US5847624 Discrete increment signal processing system using parallel branched N-state attenuator networks
12/08/1998US5847605 Folded active filter
12/03/1998WO1998054893A2 Video signal equalization system
12/03/1998DE19822777A1 Digital clock generator for microprocessors
12/02/1998CN1200601A Clamp-like movement delayed circuit with output signal repeat cycle different from input signal
12/01/1998US5844937 Matched filter system
11/1998
11/26/1998WO1998053553A1 Active phase splitter
11/24/1998US5841821 Bi-directional low pass filtering method and apparatus
11/24/1998US5841315 Matched filter circuit
11/24/1998CA2110218C Method of generating a correction function for an elimination of phase and amplitude errors of a compressed signal
11/18/1998CN1199282A Transconductance variable method and circuit, and variable bandwidth filter and variable gain amplifier using same
11/17/1998US5838184 Equivalent variable resistor circuits
11/11/1998EP0877482A1 Electronically tuned matching network using predictor-corrector control system
11/11/1998EP0877481A2 Transconductance variable method and circuit, and variable bandwidth filter and variable gain amplifier using same
11/10/1998US5834960 Semiconductor device
11/05/1998WO1998035438A3 Transistorized two-port variable-conductance network
11/04/1998EP0875991A1 Circuit arrangement for generating an electronically controlled resistor
11/03/1998US5831465 Variable delay circuit
10/1998
10/21/1998EP0872961A1 Attenuation equalizer for transmission lines
10/20/1998US5825265 Grounded inductance circuit using a gyrator circuit
10/20/1998US5825238 Circuit for filtering a power supply for noise sensitive devices
10/15/1998WO1998045942A2 Receiver and filter arrangement comprising polyphase filters
10/13/1998US5821815 Miniature active conversion between slotline and coplanar waveguide
10/11/1998CA2202457A1 Microwave phase shifter including a reflective phase shift stage and a frequency multiplication stage
10/08/1998DE19713449A1 Noise suppression filter for electromagnetic interference
10/07/1998EP0869611A1 Faster switching GaAs fet switches by illumination with high intensity light
10/06/1998US5818309 Microwave active notch filter and operating method with photonic bandgap crystal feedback loop
10/06/1998US5818300 Variable gain amplifier circuit with reduced power requirements
09/1998
09/30/1998EP0868026A1 Variable delay circuit
09/29/1998US5815446 Semiconductor memory device
09/29/1998US5815044 Variable-reactance circuit
09/29/1998US5815033 Integrated circuit, variable filter adjusting method therefor, and electronic equipment using the same
09/29/1998US5815009 Process tolerant delay circuit having process sensitive and process insensitive components placed therein
09/29/1998US5814981 Voltage circuit for generating multiple stable voltages
09/22/1998US5812939 Switch semiconductor integrated circuit and communication terminal device
09/22/1998US5812687 Circuit for controlling the frequency and/or phase response of a signal amplification system
09/22/1998US5812020 Positive current source
09/22/1998US5812015 Boosting pulse generation circuit for a semiconductor integrated circuit
09/22/1998US5812009 Boost type equalizing circuit
09/16/1998EP0864208A1 Transistor ratio controlled cmos transmission line equalizer
09/16/1998EP0864199A1 An impedance means
09/15/1998US5809408 Variable gain circuit and radio apparatus using the same
09/15/1998US5808527 Tunable microwave network using microelectromechanical switches
09/15/1998US5808498 At frequency phase shifting circuit for use in a quadrature clock generator
09/15/1998US5808322 Faster switching GaAs FET switches by illumination with high intensity light
09/09/1998EP0863640A2 Improved physical layer interface device
09/09/1998EP0863623A2 Device and method for controlling frequency characteristic of a filter
09/09/1998EP0863615A1 Frequency tracking arrangements
09/09/1998CN1192829A Tuning amplifier
09/08/1998US5805031 Transistor ratio controlled CMOS transmission line equalizer
09/01/1998US5802358 Digital audio data phase shifting apparatus
08/1998
08/26/1998EP0860942A1 Tuning amplifier
08/20/1998WO1998036492A1 Tuning-range extension circuit for systems utilizing mosfets as tunable resistors
08/19/1998CN1190822A WAve filter
08/18/1998US5796850 Noise reduction circuit, noise reduction apparatus, and noise reduction method
08/18/1998US5796545 Device and method for calibrating a time constant of one or more filter circuits
08/18/1998US5796308 Differential attenuator common mode rejection correction circuit
08/18/1998US5796286 Attenuation circuitry using gate current control of FET conduction to vary attenuation
08/18/1998US5796279 DC application circuit with suppressed DC magnetization
08/13/1998WO1998035438A2 Transistorized two-port variable-conductance network
08/13/1998DE19733111A1 Semiconductor component with input and output terminals
08/12/1998EP0858160A2 Voltage controlled oscillator
08/12/1998CN1190285A 压控振荡器 Voltage Controlled Oscillator
08/11/1998US5793251 Demodulator circuit using gyrator circuit
08/11/1998US5793239 For an amplifier circuit
08/04/1998US5789973 Resistorless operational transconductance amplifier circuit
07/1998
07/30/1998DE19738774A1 Second order differential high frequency filter
07/29/1998EP0728391B1 Clock-recovery circuit
07/23/1998WO1998032234A1 Antenna circuit
07/23/1998WO1998032061A1 Compensation network for pinch off sensitive circuits
07/22/1998EP0853839A2 Electronic circuit comprising complementary transconductors for filters and oscillators
07/21/1998US5784692 Method and apparatus for generating non-linear variable impedance
07/21/1998US5783977 Tunable and bandwidth programmable multi-element filter system
07/15/1998EP0853385A1 Variable digital delay line
07/15/1998CN1187912A 放大器 Amplifiers
07/14/1998US5781584 Code acquisition and tracking circuit using switched matched filter and sliding correlators
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