| Patents for H03H 11 - Networks using active elements (9,098) |
|---|
| 01/24/2002 | US20020008572 Transconductance-capacitance filter system |
| 01/24/2002 | US20020008565 Differencing non-overlapped dual-output amplifier circuit |
| 01/23/2002 | EP1175007A2 Transconductance-capacitance filter system |
| 01/23/2002 | EP0995266B1 Mains filter circuit arrangement |
| 01/22/2002 | US6340913 Filter circuit with positive feedback loop |
| 01/22/2002 | US6340908 Phase adjusting circuit, scaling signal generation circuit using phase adjusting circuit, and position measuring apparatus using scaling signal generation circuit |
| 01/17/2002 | WO2002005430A1 Dual fet differential voltage controlled attenuator |
| 01/17/2002 | US20020005752 Electrothermal integrator and audio frequency filter |
| 01/16/2002 | EP1172933A2 Automatic filter tuning control system |
| 01/16/2002 | EP1171956A1 Hybrid low-pass sigma-delta modulator |
| 01/10/2002 | WO2001054273A3 Active termination network |
| 01/10/2002 | WO2001050599A3 Active isolated-integrator low-pass filter with attenuation poles |
| 01/03/2002 | WO2002001860A1 Integrated circuit for wireless terminal and television receiver with integrated circuit |
| 01/03/2002 | WO2001061849A3 Integrated programmable continuous time filter with programmable capacitor arrays |
| 01/03/2002 | WO2001047108A3 Error reduction in quadrature polyphase filters with low open loop gain operational amplifiers |
| 01/03/2002 | US20020000891 Method to find a value within a range using weighted subranges |
| 01/03/2002 | US20020000885 Transconductance tuning circuit with independent frequency and amplitude control |
| 01/03/2002 | US20020000875 Separation of plural band pass filters |
| 01/03/2002 | US20020000874 Band pass filter with improved group delay |
| 01/03/2002 | US20020000848 Bus driver circuit |
| 01/02/2002 | EP1166437A1 Power efficient line driver |
| 01/02/2002 | EP1166047A1 Method and circuit for correcting periodic signals of an incremental position measuring system |
| 01/02/2002 | CN1329774A Impedance matching networks of non-linear circuits |
| 01/02/2002 | CN1077354C 放大器 Amplifier |
| 01/01/2002 | US6335952 Single chip CMOS transmitter/receiver |
| 01/01/2002 | US6335656 Direct conversion receivers and filters adapted for use therein |
| 01/01/2002 | US6335655 Filter circuit |
| 12/27/2001 | WO2001045273A3 Duplexer with improved transmission/receiving band separation |
| 12/27/2001 | US20010054974 Low noise wideband digital predistortion amplifier |
| 12/27/2001 | US20010054929 Filter characteristic regulating apparatus and regulating method therefor |
| 12/27/2001 | US20010054888 Impedance conversion circuit |
| 12/26/2001 | CN1328380A Adaptive active analog band-pass filter with zero phase and temp shifts |
| 12/20/2001 | WO2001097321A1 Frequency-tunable notch filter |
| 12/20/2001 | US20010054118 Concurrent programming apparatus with status detection capability |
| 12/20/2001 | DE10028189A1 Operation of a number of peripheral communication units from a common aerial using coupling network |
| 12/19/2001 | EP1163720A1 Method and circuit for automatically tuning filter circuits over process, voltage, and temperature |
| 12/19/2001 | EP1053595B1 Apparatus and methods for tuning bandpass filters |
| 12/18/2001 | US6331807 Microwave coupler for a monolithic integrated circuit |
| 12/18/2001 | US6331785 Polling to determine optimal impedance |
| 12/13/2001 | WO2001095552A2 High frequency network receiver |
| 12/13/2001 | WO2001095507A2 Arrangement for operating various terminal devices |
| 12/13/2001 | US20010050994 Self-tracking filter |
| 12/13/2001 | DE10115235A1 Bildunterdrückungsmischstufe Image rejection mixer |
| 12/12/2001 | CN1076143C Device for stabilizing limiting frequency by using mutual conductance |
| 12/06/2001 | WO2001093491A2 High frequency network transmitter |
| 12/06/2001 | WO2001093429A2 Track/attenuate circuit and method for switched current source dac |
| 12/06/2001 | WO2001093422A1 Rf circuit |
| 12/06/2001 | WO2001048920A3 Phase-compensated impedance converter |
| 12/06/2001 | US20010048715 Single chip CMOS transmitter/receiver |
| 12/06/2001 | US20010048541 Delay equalizer, optical transmitter using same delay equalizer, and optical transmission system |
| 12/06/2001 | US20010048345 Active isolated-integrator low-pass filter with attenuation poles |
| 12/06/2001 | US20010048342 Filter circuit |
| 12/05/2001 | EP1160967A2 Transconductance tuning circuit with independent frequency and amplitude control |
| 12/05/2001 | EP1160906A1 Phaser |
| 12/05/2001 | EP0928501B1 Miniature active conversion between slotline and coplanar waveguide |
| 12/04/2001 | US6327465 Voltage tunable active inductorless filter |
| 12/04/2001 | US6326838 Time sharing analog filters control method and magnetic disk system |
| 12/04/2001 | CA2185866C Method of processing multi-level signals for simple clock recovery |
| 11/29/2001 | US20010047505 High Q gyrator structures |
| 11/29/2001 | US20010045874 System board and impedance control method thereof |
| 11/29/2001 | US20010045864 Method and arrangement for calibrating an active filter |
| 11/29/2001 | US20010045856 Delay circuit having low operating environment dependency |
| 11/29/2001 | US20010045852 Clock control method and circuit |
| 11/29/2001 | US20010045851 Clock control method and circuit |
| 11/29/2001 | US20010045843 Method and device for active impedance matching |
| 11/29/2001 | DE10121897A1 Systemplatine und Impedanzsteuerverfahren hierfür System board and impedance control method therefor |
| 11/29/2001 | DE10026161A1 Filteranordnung Filter assembly |
| 11/28/2001 | EP1158679A1 Method and device for controlling the phase shift of four signals mutually in phase quadrature |
| 11/28/2001 | EP1158673A2 Filter device |
| 11/28/2001 | EP0815643B1 Npn bipolar circuit topology for a tunable transconductance cell and positive current source |
| 11/28/2001 | CN1324514A Dual-band, dual-mode powder amplifier with reduced power loss |
| 11/28/2001 | CN1075686C 有源带通滤波器 Active bandpass filter |
| 11/27/2001 | US6324083 Method of and arrangement for converting voltage to current |
| 11/22/2001 | US20010043101 Semiconductor integrated circuit, delay-locked loop having the same circuit, self-synchronizing pipeline type system, voltage-controlled oscillator, and phase-locked loop |
| 11/21/2001 | EP0742941B1 Tracking filter for periodic signals |
| 11/21/2001 | CN1075289C 调谐电路 Tuned circuit |
| 11/20/2001 | USRE37452 At frequency phase shifting circuit for use in a quadrature clock generator |
| 11/20/2001 | US6320475 Printed circuit board suppressing ringing in signal waveforms |
| 11/20/2001 | US6320425 Dual FET differential voltage controlled attenuator |
| 11/15/2001 | WO2001086807A1 Voltage-controlled capacitor |
| 11/15/2001 | US20010040921 Equalizer |
| 11/15/2001 | US20010040474 Clock control method and circuit |
| 11/15/2001 | US20010040471 I/O interface circuit, semiconductor chip and semiconductor system |
| 11/15/2001 | DE10021867A1 Voltage controlled capacitor for voltage controlled oscillators comprises two voltage dependent capacitors in parallel |
| 11/14/2001 | EP1154586A1 Equaliser |
| 11/14/2001 | EP1154572A2 Semiconductor integrated circuits |
| 11/14/2001 | EP1154569A2 Polyphase filters in silicon integrated circuit technology |
| 11/14/2001 | EP0676862B1 Direct-current impressing circuit |
| 11/13/2001 | US6317016 Method and arrangement for gyration filtering with low power consumption |
| 11/13/2001 | US6316992 DC offset calibration for a digital switching amplifier |
| 11/08/2001 | US20010038323 Polyphase filters in silicon integrated circuit technology |
| 11/08/2001 | US20010038309 Filter circuit |
| 11/07/2001 | EP0745286B1 LOW-VOLTAGE BiCMOS DIGITAL DELAY CHAIN SUITABLE FOR OPERATION OVER A WIDE POWER SUPPLY RANGE |
| 11/06/2001 | US6313695 Semiconductor circuit device having hierarchical power supply structure |
| 11/06/2001 | US6313688 Mixer structure and method of using same |
| 11/06/2001 | US6313687 Variable impedance circuit |
| 11/06/2001 | US6313681 Variable delay circuit |
| 11/06/2001 | US6313680 Phase splitter |
| 11/01/2001 | WO2001082479A2 Method and apparatus for filtering signals in a subsystem including a power amplifier utilizing a bank of vibrating micromechanical apparatus |
| 11/01/2001 | WO2001082478A2 Method and subsystem for processing signals utilizing a plurality of vibrating micromechanical devices |