| Patents for H03H 7 - Multiple-port networks comprising only passive electrical elements as network components (15,104) |
|---|
| 02/11/2004 | EP1388206A1 Filter arrangement for symmetrical and asymmetrical line systems |
| 02/11/2004 | CN1475050A System for eight-phase 45â°polyphase filter with amplitude matching |
| 02/11/2004 | CN1474625A Elastic surface wave filter, wave divider and communication machine |
| 02/11/2004 | CN1138341C Clutter rejection apparatus |
| 02/10/2004 | US6690251 Tunable ferro-electric filter |
| 02/10/2004 | US6690177 Frequency selective improvement of the directivity of a return loss bridge |
| 02/10/2004 | US6690176 Low-loss tunable ferro-electric device and method of characterization |
| 02/05/2004 | DE10233123A1 Einrichtung zur dynamischen Anpassung der Impedanz zwischen einem Leistungsverstärker und einer Antenne Means for dynamically adjusting the impedance between a power amplifier and an antenna |
| 01/29/2004 | WO2004010595A1 Device for dynamic impedance matching between a power amplifier and an antenna |
| 01/29/2004 | WO2004010501A1 Integrated circuit arrangement |
| 01/29/2004 | WO2003058809B1 Bulk acoustic wave resonator with two piezoelectric layers as balun in filters and duplexers |
| 01/29/2004 | US20040017278 On-chip multiple tap transformer and inductor |
| 01/29/2004 | US20040017266 Broadband balun and impedance transformer for push-pull amplifiers |
| 01/29/2004 | US20040017265 Device for coupling radio frequency energy from various transmission lines using variable impedance transmission lines |
| 01/29/2004 | DE10231638A1 Integrierte Schaltungsanordnung An integrated circuit device |
| 01/29/2004 | DE10139164B4 Monolithische LC-Komponenten Monolithic LC components |
| 01/28/2004 | EP1384312A1 Tunable voltage controlled oscillator |
| 01/28/2004 | EP1384286A1 Inverted-f ferroelectric antenna |
| 01/28/2004 | EP1384285A1 Ferroelectric antenna and method for tuning same |
| 01/28/2004 | CN1471333A 可变类型天线匹配电路 The variable type antenna matching circuit |
| 01/27/2004 | US6683557 Technique for changing a range gate and radar for coverage |
| 01/22/2004 | WO2004008634A1 Apparatus and methods for tuning antenna impedance using transmitter and receiver parameters |
| 01/22/2004 | US20040013189 Soft slicer in a hybrid decision feedback equalizer |
| 01/22/2004 | US20040012462 Feed-through filter having improved shielding and mounting functions |
| 01/22/2004 | CA2431143A1 Variable phase shifter and a system using variable phase shifter |
| 01/21/2004 | EP1383236A1 Reconfigurable multibandfilter |
| 01/21/2004 | EP1383145A1 Laminated balun transformer |
| 01/21/2004 | EP1382083A1 Tunable multiplexer |
| 01/21/2004 | CN1469545A Transmitting line type noise filter |
| 01/21/2004 | CN1135719C Antenna impedance regulator |
| 01/21/2004 | CN1135688C Equipment and method for long-distance communication |
| 01/20/2004 | CA2180172C Arrangement for matching and tuning a surface acoustic wave filter |
| 01/15/2004 | US20040009754 Apparatus and methods for tuning antenna impedance using transmitter and receiver parameters |
| 01/15/2004 | US20040008151 Variable type antenna matching circuit |
| 01/15/2004 | US20040008095 Constant impedance filter |
| 01/15/2004 | US20040007945 Matching circuit for megasonic transducer device |
| 01/15/2004 | DE19810620B4 Breitbanddämpfungseinrichtung zur frequenzkompensierten Dämpfung von Hochfrequenzsignalen eines Frequenzbandes Wide-band attenuation means for frequency-compensated attenuation of high frequency signals of a frequency band |
| 01/14/2004 | EP1380106A1 Tunable matching circuit |
| 01/14/2004 | EP1380104A1 Low-pass filter with only passive components for xdsl path decoupling |
| 01/14/2004 | CN1134903C Mobile radio telephone and transmitter |
| 01/14/2004 | CN1134797C 叠层电子元件 Laminated electronic components |
| 01/13/2004 | US6678511 Circuit for correcting pass band flatness |
| 01/13/2004 | US6678320 Efficient finite impulse response filter implementation for CDMA waveform generation |
| 01/13/2004 | US6678319 Digital signal processing for high-speed communications |
| 01/13/2004 | US6678317 Adaptive equalizer device and method for controlling adaptive equalizer |
| 01/13/2004 | US6677833 Multilayered band separator with grounding parasitic capacitor |
| 01/13/2004 | US6677829 Balanced transmission termination device and receiver unit composed thereof |
| 01/13/2004 | US6677828 Method of hot switching a plasma tuner |
| 01/08/2004 | WO2004004137A2 Apparatus, and associated method, for performing joint equalization in a multiple-input, multiple-output communication system |
| 01/07/2004 | EP1378959A1 Antenna apparatus and communication apparatus using the same |
| 01/07/2004 | EP1378958A1 Composite high frequency apparatus |
| 01/07/2004 | EP1378058A2 Antenna matching circuit |
| 01/07/2004 | EP1377994A1 Tunable ferro-electric filter |
| 01/07/2004 | EP1377839A1 Low-loss tunable ferro-electric device and method of characterization |
| 01/06/2004 | US6674365 Communication terminal |
| 01/06/2004 | US6674354 Non-reciprocal circuit element, communication device, and method of manufacturing non-reciprocal circuit element |
| 01/06/2004 | US6674343 Electronic filter assembly |
| 01/02/2004 | EP1376865A2 Surface acoustic wave filter, branching filter, and communications apparatus |
| 01/02/2004 | EP1376854A2 Compact lumped element ring balun layout |
| 01/02/2004 | EP1374398A2 Circuit and method for input side impedance matching of a power amplifier in an electronic device |
| 01/01/2004 | US20040001537 Apparatus, and associated method, for performing joint equalization in a multiple-input, multiple-output communication system |
| 01/01/2004 | US20040000969 Distributed constant type filter |
| 01/01/2004 | US20040000968 Integrated passive devices fabricated utilizing multi-layer, organic laminates |
| 01/01/2004 | US20040000701 Stand-alone organic-based passive devices |
| 12/31/2003 | CN2596669Y Interference suppressing circuit of wave wheel type washing machine |
| 12/31/2003 | CN1465130A Active common mode emi filter mitigating conducted electromagnetic interference |
| 12/31/2003 | CN1133267C Monolithic inductive capacity reconance and monolithic inductive capacity filter |
| 12/30/2003 | US6671501 Signal transmission circuit |
| 12/30/2003 | US6670910 Near object detection system |
| 12/30/2003 | US6670866 Bulk acoustic wave resonator with two piezoelectric layers as balun in filters and duplexers |
| 12/30/2003 | US6670864 Matching circuit including a MEMS capacitor |
| 12/25/2003 | US20030236751 Method and apparatus for managing conflicts of interest during the selection of legal and legal-related service providers |
| 12/25/2003 | US20030235253 Digital transmitter with equalization |
| 12/24/2003 | WO2003107547A1 Low frequency attenuating circuit |
| 12/24/2003 | CN2595076Y Frequency scanning circuits for R-C oscillation chips |
| 12/24/2003 | CN1463052A High frequency composite component |
| 12/24/2003 | CN1132318C Method and appts. for parallel encoding and decoding of data |
| 12/24/2003 | CN1132309C Impedance means and its control method |
| 12/23/2003 | US6667669 Differential pin diode attenuator |
| 12/18/2003 | US20030232602 Apparatus for switching matching circuit in mobile communication terminal |
| 12/18/2003 | US20030231456 Energy conditioning structure |
| 12/18/2003 | US20030231455 Capacitor with high voltage breakdown threshold |
| 12/18/2003 | US20030231085 Transmission line type noise filter with small size and simple structure, having excellent noise removing characteristic over wide band including high frequency band |
| 12/18/2003 | US20030231084 Bandpass filter and apparatus using same |
| 12/18/2003 | US20030231026 Circuit and method for adjusting circuit tolerances |
| 12/17/2003 | CN1462458A Foil wound low profile I-C power processor |
| 12/17/2003 | CN1462156A High-frequency coupler |
| 12/17/2003 | CN1462046A Transmission line type quiet filter |
| 12/17/2003 | CN1131589C AC power source filter for audio video electrical load |
| 12/16/2003 | US6664934 Radio antenna matching circuit |
| 12/16/2003 | US6664870 Compact 180 degree phase shifter |
| 12/16/2003 | US6664863 LC oscillator |
| 12/16/2003 | US6664691 Filter circuit incorporating a micro-electromechanical capacitor |
| 12/16/2003 | US6664606 Multi-layer integrated circuit structure with reduced magnetic coupling |
| 12/11/2003 | WO2003103143A1 Methods and apparatus for tuning using successive aproximation |
| 12/11/2003 | US20030227966 Methods, devices and computer program products for adaptively adjusting passbands of high-pass filters of asymmetric digital subscriber link (ADSL) modems |
| 12/11/2003 | US20030227354 Frequency discrete LC filter bank |
| 12/11/2003 | US20030227343 Methods and apparatus for tuning an LC Filter |
| 12/10/2003 | EP1369880A2 Electrical multilayer component and circuit arrangement |
| 12/10/2003 | EP1368893A2 Continuously tunable phase shifter |