| Patents for H03J 3 - Continuous tuning (1,764) |
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| 05/19/2010 | CN101711458A Digitally controlled antenna tuning circuit for radio frequency receivers |
| 05/18/2010 | US7719083 Integrated spiral inductor |
| 05/12/2010 | CN101194423B Tunable circuit device and method for providing the same |
| 04/22/2010 | US20100097164 Tuned circuit and double tuned circuit |
| 04/21/2010 | CN101697482A System for controlling electric appliance by single wire |
| 04/08/2010 | US20100085134 Microwave lens |
| 04/06/2010 | US7692247 System and method for ESD protection |
| 03/25/2010 | DE102009037983A1 Abstimmverfahren und -vorrichtung Tuning method and apparatus |
| 03/17/2010 | EP2162986A1 Tuner circuit with loop through function |
| 02/23/2010 | US7668519 Tuner input filter with electronically adjustable response for adapting to antenna characteristic |
| 02/18/2010 | US20100039194 Monotonic frequency tuning technique for DCXO in cellular applications |
| 02/16/2010 | US7663431 Tuner and demodulating unit thereof |
| 02/03/2010 | CN101641864A Method for the reconstruction of a fault-reduced periodic voltage signal |
| 01/13/2010 | EP2144370A1 Oscillator phase noise reduction by self tuning filter and noise feedback |
| 01/07/2010 | US20100001825 Double-tuned circuit |
| 01/07/2010 | US20100001818 Memory cell based array of tuning circuit |
| 01/06/2010 | EP2141807A2 Double-tuned circuit |
| 01/06/2010 | EP2141806A1 System for automatic tuning of an analogue filter |
| 01/06/2010 | CN100578914C Variable reactor device with reduced temperature dependence |
| 12/30/2009 | WO2009156805A1 Antenna device |
| 12/30/2009 | EP2139112A1 Double-tuned circuit |
| 12/23/2009 | EP2135352A1 Method for the reconstruction of a fault-reduced periodic voltage signal |
| 12/23/2009 | EP2135351A1 Radio frequency filter |
| 12/17/2009 | US20090310031 Tuner input filter with electronically adjustable response for adapting to antenna characteristic |
| 12/15/2009 | US7634243 System and method for providing a dual conversion tuner having a first IF filter without fixed center frequency |
| 12/09/2009 | CN101598933A Automatic tuning communication control method for digital arc suppression coil |
| 12/02/2009 | CN101594124A A coordinate tunable filter and a wireless communication front end circuit |
| 11/18/2009 | EP2120337A1 Voltage controlled oscillator including inter-terminal connection and trap circuit |
| 11/17/2009 | US7620379 Radio frequency tuner |
| 11/11/2009 | CN101578765A Variable capacitance circuit |
| 10/28/2009 | CN100555917C Optical transfer comprehensive access PDH device in multiple services |
| 10/28/2009 | CN100555669C Method for producing variable capacitor of micro electromechanical system |
| 10/27/2009 | US7609134 Variable tuning circuit using variable capacitance diode and television tuner |
| 10/20/2009 | US7606270 Device and method for generating control signals in a radio station |
| 10/14/2009 | EP2109024A1 Semiconductor device with temperature compensation circuit |
| 10/13/2009 | US7603098 Programmable IF frequency filter for enabling a compromise between DC offset rejection and image rejection |
| 10/13/2009 | US7603085 Bandpass filter with integrated variable gain function |
| 10/07/2009 | CN101552614A Single antenna tuning circuit used for near field communication equipment |
| 10/07/2009 | CN100547937C Tuner containing voltage adapter |
| 09/30/2009 | CN100546181C Regulatable filter and portable telephone |
| 09/16/2009 | CN100542010C Single conversion tuner |
| 09/10/2009 | US20090224860 System and method of using residual voltage from a prior operation to establish a bias voltage for a subsequent operation |
| 09/09/2009 | EP2097977A1 Method and device for optimising the adjustment time of an adjustable filter |
| 09/01/2009 | US7583942 Tuning device and radio-wave corrected timepiece |
| 09/01/2009 | US7583166 Inductor Q factor enhancement apparatus has bias circuit that is coupled to negative resistance generator for providing bias signal |
| 08/19/2009 | EP2089837A1 Electronic device for radio frequency identification and method for adjusting the resonance frequency of said electronic device |
| 08/05/2009 | EP2086112A1 Variable capacitance circuit |
| 08/05/2009 | CN101501991A Resonant circuit tuning system with dynamic impedance matching |
| 07/28/2009 | US7567120 Varactor diode alternative circuit |
| 07/23/2009 | US20090184786 Multi-segment primary and multi-turn secondary transformer for power amplifier systems |
| 07/23/2009 | DE102008054539A1 Direktmischende Empfängerarchitektur mit integrierter Tunerselbstabstimmfunktion Direct conversion transceiver architecture with integrated Tunerselbstabstimmfunktion |
| 07/08/2009 | EP2077618A1 Double-tuning circuit of television tuner |
| 07/02/2009 | US20090167467 Double-tuning circuit of television tuner |
| 07/02/2009 | US20090167466 Tunable high quality factor inductor |
| 07/01/2009 | CN101473536A Resonant circuit tuning system using magnetic field coupling reactance element |
| 07/01/2009 | CN101472112A Double-tuning circuit of television tuner |
| 06/18/2009 | US20090153275 Tunable magnetic field amplifying device |
| 06/10/2009 | CN100499618C Tuned circuit with variable amplitude function and integrated circuit for radio communication device |
| 05/28/2009 | WO2009048616A3 Dynamical frequency tuning of electric and magnetic metamaterial response |
| 05/28/2009 | US20090134960 Linear variable voltage diode capacitor and adaptive matching networks |
| 05/28/2009 | US20090134949 Methods and apparatuses for inductor tuning in radio frequency integrated circuits |
| 05/14/2009 | US20090121951 Tunable microstrip devices |
| 05/13/2009 | CN100487837C Micro-electromechanical varactor with enhanced tuning range |
| 05/06/2009 | CN101427466A Receiver with tuner front end using tracking filters and calibration |
| 04/30/2009 | US20090108966 Line structure and method for manufacturing the same |
| 04/29/2009 | CN100483927C Comparator |
| 04/23/2009 | DE19882089B4 Verstärker zur kontinuierlichen schmalbandigen Signalverstärkung mit hohem Verstärkungsfaktor und Verstärkungsverfahren Continuous narrow-band amplifier for signal amplification with a high gain and amplification method |
| 04/23/2009 | DE102007049486A1 Radio-frequency identification transponder i.e. battery-free radio-frequency identification transponder, for use with read/write unit, has capacitor coupled with antenna, where quality factor is low and high during respective transmissions |
| 04/16/2009 | WO2009048616A2 Dynamical frequency tuning of electric and magnetic metamaterial response |
| 04/16/2009 | US20090096557 Variable Inductance Applying Device Using Variable Capacitor and Variable Frequency Generating Device Thereof |
| 04/14/2009 | US7519342 Tunable tracking filter |
| 04/07/2009 | US7515895 System and method for on-chip filter tuning |
| 04/01/2009 | CN100474771C Device with material having acoustic effect |
| 03/26/2009 | US20090079524 Multi-band tunable resonant circuit |
| 03/19/2009 | DE10262286B4 Leistungsversorgungsvorrichtung zum Erzeugen von Hochfrequenzleistung für eine Plasmaerzeugungsvorrichtung The power supply apparatus for generating high-frequency power to a plasma generating device |
| 03/12/2009 | US20090066448 Tuner and transformer formed by printed circuit board thereof |
| 03/12/2009 | US20090066269 Variable inductor as downhole tuner |
| 03/11/2009 | EP2033312A1 Resonant circuit tuning system with dynamic impedance matching |
| 03/11/2009 | EP2033311A1 Resonant circuit tuning system using magnetic field coupled reactive elements |
| 03/11/2009 | EP2033310A1 Thermally stable resonant circuit for inductive sensors |
| 03/10/2009 | US7501919 Boosted-bias tunable filter with dynamic calibration |
| 03/03/2009 | US7499694 Tuner alignment |
| 02/24/2009 | US7495936 Three-phase voltage-fed AC/DC converter |
| 02/24/2009 | US7495882 Electronic components comprising adjustable-capacitance micro-electro-mechanical capacitors |
| 02/18/2009 | EP2024756A1 Microwave circuit performance optimization by on-chip digital distribution of operating set-point |
| 02/04/2009 | CN101361195A Varactor element and low distortion varactor circuit arrangement |
| 02/03/2009 | US7486132 Variable capacitor circuit and integrated circuit containing the same |
| 01/14/2009 | EP1540834B1 Dual conversion tuner having a first IF filter without accurate center frequency |
| 01/13/2009 | US7477706 Switched capacitor network for tuning and downconversion |
| 01/13/2009 | US7477326 HDTV chip with a single IF strip for handling analog and digital reception |
| 12/31/2008 | EP2009790A1 Method for tuning the resonant frequency of an antenna |
| 12/24/2008 | WO2008156480A1 Digital tuning of crystal oscillators |
| 12/24/2008 | EP1618672A4 Automatic frequency control processing in multi-channel receivers |
| 12/18/2008 | WO2008154173A1 Digitally controlled antenna tuning circuit for radio frequency receivers |
| 12/16/2008 | US7466973 Single conversion tuner |
| 12/16/2008 | US7466668 Reduced pin-count system interface for gigabit ethernet physical layer devices |
| 12/04/2008 | DE10257147B4 Leistungsversorgungsvorrichtung zum Erzeugen von Hochfrequenzleistung für eine Plasmaerzeugungsvorrichtung The power supply apparatus for generating high-frequency power to a plasma generating device |
| 12/04/2008 | DE102007024908A1 Abstimmbares induktives Bauelement und Verwendung des Bauelements A tunable inductor and use of the device |
| 12/03/2008 | CN100440724C 低噪声振荡器 Low-noise oscillator |
| 11/26/2008 | CN100438596C Tuner |