| Patents for H03H 7 - Multiple-port networks comprising only passive electrical elements as network components (15,104) |
|---|
| 09/17/1997 | EP0795966A2 Power saving for radio receiver |
| 09/17/1997 | EP0795957A1 Device comprising a passive, 180 degree phase-shifting coupling circuit |
| 09/17/1997 | EP0795954A1 Apparatus comprising a ring mixer |
| 09/16/1997 | US5668511 Low-pass filter |
| 09/16/1997 | US5668510 Four way RF power splitter/combiner |
| 09/12/1997 | WO1997033367A1 Antenna arrangement |
| 09/10/1997 | EP0794610A1 Constant high Q voltage controlled oscillator and method for making same |
| 09/10/1997 | CN1159248A Chip coil |
| 09/10/1997 | CN1035855C CATV signal splitter |
| 09/09/1997 | US5666089 Monolithic step attenuator having internal frequency compensation |
| 09/04/1997 | WO1997032395A1 Methods and apparatus for improving frequency response of integrated rc filters |
| 09/04/1997 | DE19628727C1 High-frequency bandpass filter circuit for television tuner |
| 09/02/1997 | US5663690 Constant high Q voltage controlled oscillator |
| 08/27/1997 | EP0792027A1 Multi-band radio-telephone apparatus |
| 08/27/1997 | EP0791232A1 Dual-band antenna system |
| 08/19/1997 | US5659273 Line termination for multiple differential transmission lines |
| 08/13/1997 | EP0789448A1 Apparatus for DC compensation |
| 08/13/1997 | EP0789390A2 A method for producing multilayer hybrid circuit |
| 08/07/1997 | DE19703219A1 High frequency tuning circuit with input tuning transformer |
| 08/06/1997 | EP0788223A2 Pin diode variable attenuator |
| 08/06/1997 | EP0702857A4 High temperature superconductor lumped elements and circuit |
| 08/05/1997 | US5654679 Apparatus for matching a variable load impedance with an RF power generator impedance |
| 07/30/1997 | EP0786927A1 Composite functional device and method for producing the same |
| 07/30/1997 | EP0786832A1 Branching device |
| 07/30/1997 | EP0786157A1 Frequency transformation apparatus and method in narrow-band filter designs |
| 07/29/1997 | US5652599 Dual-band antenna system |
| 07/23/1997 | EP0785590A1 Composite high-frequency component |
| 07/23/1997 | EP0785559A1 Chip coil |
| 07/23/1997 | EP0784886A1 Passive and aperiodic electrical signal attenuation and phase-shifting device |
| 07/23/1997 | EP0784879A1 Catv tap |
| 07/23/1997 | EP0784878A1 Catv tap |
| 07/23/1997 | CN1155185A Filter and wide-band television modulator |
| 07/22/1997 | US5650756 High frequency signal dividing and/or combining device |
| 07/22/1997 | US5650714 Orthogonal signal generation system |
| 07/22/1997 | CA2125988C Integrated common mode and differential mode inductor device |
| 07/15/1997 | US5649313 Television receiver with saw filter coupling utilizing a series resonance network and additional resistor |
| 07/15/1997 | US5648745 Non-interruptible tap and method |
| 07/10/1997 | WO1997024748A1 Apparatus for controlling matching network of a vacuum plasma processor and memory for same |
| 07/10/1997 | CA2240679A1 Impulse noise effect reduction |
| 07/02/1997 | EP0781467A2 Quadrature modulator with integrated distributed rc filters |
| 07/02/1997 | CN1153580A High performance modem using pilot symbols for equalization and frame synchronization |
| 07/02/1997 | CN1153426A Laminated resonator and laminated band pass filter using same |
| 07/01/1997 | US5644260 RC/CR automatic quadrature network |
| 06/25/1997 | EP0780973A1 Notch filter with passive components |
| 06/25/1997 | EP0780034A1 Lumped element filters |
| 06/19/1997 | DE19547969C1 Electrical filter for reducing sub-harmonics or intermediate harmonics |
| 06/18/1997 | EP0779707A1 RF filter arrangement with image trap |
| 06/18/1997 | CN1152218A Filter device and dual-band system in which filter device is used |
| 06/18/1997 | CN1152213A BPF (band pass filter) device |
| 06/11/1997 | EP0778683A2 Terminal equipment for telecommunications and information processing |
| 06/11/1997 | EP0778665A1 Branching device |
| 06/11/1997 | CN1035147C Vairable impedance circuit providing reduced distortion |
| 06/10/1997 | US5638034 Method and arrangement for tuning a combiner filter |
| 06/05/1997 | WO1997020388A1 An impedance means |
| 06/05/1997 | DE19650096A1 Satellite radio receiver tuner |
| 06/05/1997 | DE19649683A1 High frequency component for mobile phone |
| 06/05/1997 | CA2238572A1 An impedance means |
| 06/04/1997 | EP0776547A1 A digital radio system, a digital radio device, and a quadrature demodulator |
| 06/03/1997 | US5636147 Method of providing ultrasound electrical impedance matching circuits |
| 05/28/1997 | DE19545237A1 Symmetrical-input receiver circuit for serial digital audio signals |
| 05/27/1997 | US5634203 Adaptive multi-receiver shared antenna matching system and method |
| 05/27/1997 | US5633614 Unbalanced to balanced signal line coupling device |
| 05/21/1997 | EP0774797A2 Laminated resonator and laminated band pass filter using same |
| 05/21/1997 | EP0774187A1 Electromagnetic interference isolator |
| 05/20/1997 | US5631611 Automatic matching and tuning network |
| 05/13/1997 | US5629655 Integrated distributed RC low-pass filters |
| 05/13/1997 | US5629653 RF match detector circuit with dual directional coupler |
| 05/06/1997 | US5627502 Resonator filter with variable tuning |
| 04/30/1997 | CN1148757A Wireless tuning controller |
| 04/24/1997 | WO1997015096A1 Top exit coupler |
| 04/22/1997 | CA2109997C Method and apparatus for imparting positive phase slope to a narrowband signal |
| 04/19/1997 | CA2160854A1 Top exit coupler |
| 04/17/1997 | WO1997014197A1 Branching device |
| 04/16/1997 | CN1147696A Circuit for adjusting circuit element value in semiconductor integrated circuit |
| 04/10/1997 | WO1997013323A1 Branching device |
| 04/10/1997 | WO1997013322A1 Branching device |
| 04/10/1997 | WO1997013321A1 Device for the absorption of electrical noise |
| 04/08/1997 | US5619172 High impedance ratio wideband transformer circuit |
| 04/08/1997 | US5619080 Line filter for reducing AC harmonics |
| 04/08/1997 | US5618777 High temperature superconductor lumped elements and circuit therefrom |
| 04/03/1997 | DE19536155A1 Einrichtung zum Absorbieren des elektrischen Rauschens Means for absorbing the electrical noise |
| 04/02/1997 | CN1034426C Cucumber mosaic virus coat protein gene |
| 04/01/1997 | US5616539 High temperature superconductor lumped element band-reject filters |
| 03/27/1997 | DE19639238A1 Eingangsabstimmkreis für Fernsehgerät Eingangsabstimmkreis for TV |
| 03/25/1997 | US5614873 Electronic circuit |
| 03/20/1997 | WO1997010645A1 High impedance ratio wideband transformer circuit |
| 03/20/1997 | WO1997010621A1 Dual-band antenna system |
| 03/20/1997 | CA2231832A1 High impedance ratio wideband transformer circuit |
| 03/20/1997 | CA2204377A1 Dual-band antenna system |
| 03/18/1997 | US5612656 Resonator with spiral-shaped pattern electrodes |
| 03/12/1997 | CN1145145A TV receiver with SAW filter coupling |
| 03/11/1997 | US5610565 Composite LC device with a ground electrode not formed on the inductor parts |
| 03/11/1997 | US5610564 AC integrated coupler with phase equalizer |
| 03/06/1997 | DE19531996A1 Duplexer for signal transmission and reception |
| 03/05/1997 | CN1144421A Filter device and dual-band radio system in which filter device is used |
| 03/04/1997 | US5607631 Enhanced tunability for low-dielectric-constant ferroelectric materials |
| 02/27/1997 | WO1997007571A1 Branching device |
| 02/27/1997 | DE19633954A1 Filter device esp. for two band radio system for mobile phones |
| 02/27/1997 | DE19607500A1 Filter device esp. for two band radio system |
| 02/27/1997 | CA2202246A1 Multi-tap distribution apparatus |