Patents for H03J 3 - Continuous tuning (1,764)
01/2001
01/25/2001WO2001006637A1 Adjustable filter
01/25/2001CA2379868A1 Adjustable filter
01/23/2001US6178315 FM radio receiver
01/09/2001US6172569 Transconductance filter control system
01/04/2001WO2000062419A3 Mos variable gain amplifier
01/03/2001EP1064719A1 Demodulator circuits
12/2000
12/20/2000EP1061736A1 Intermediate frequency tuning circuit
12/19/2000US6163238 Fast variable RF network inductor
12/13/2000EP1059732A2 Tuneable antenna preamplifier
12/07/2000WO2000074233A1 System and method for linearizing a cmos differential pair
11/2000
11/30/2000WO2000072446A1 Integrated vco
11/29/2000EP1056204A1 Tunable RF filter with image trap
11/23/2000WO2000042659A3 System and method for esd protection
11/23/2000DE19921805A1 FM and FSK demodulator with automatic frequency control AFC for receiving frequency modulated and frequency shift keying signals
11/22/2000EP1053595A1 Apparatus and methods for tuning bandpass filters
11/15/2000EP1052772A1 Circuit and method for producing a filtered signal
11/10/2000CA2308857A1 System and process for producing a filtered signal of a given frequency and radio-relay transmitter with a frequency established by an adjustable frequency oscillator
11/09/2000DE19918057A1 Vorrichtung und Verfahren zur Einstellung der Abstimmspannung von Abstimmschwingkreisen Apparatus and method for adjusting the tuning of Abstimmschwingkreisen
10/2000
10/25/2000EP1047191A1 Method and arrangement for tuning a resonator
10/24/2000CA2052385C Variable band-pass filter circuit
10/19/2000WO2000062419A2 Mos variable gain amplifier
10/17/2000US6134282 Method for lowpass filter calibration in a satellite receiver
10/11/2000EP1043837A1 Frequency offset correction in a packet transmission system
10/04/2000CN1057176C Switched capacitor bandpass filter for detecting pilot signal
09/2000
09/27/2000CN1268001A Television tuning assembly
09/20/2000EP1037386A2 Television tuner with suppressed attenuation of level of video intermediate frequency with respect to rise in ambient temperature
09/19/2000US6122496 Device and method for controlling frequency characteristic of a filter
09/19/2000US6122493 Radio receiver having automatic broadcasting-station selecting function
09/19/2000US6121850 Digitally adjustable inductive element adaptable to frequency tune an LC oscillator
09/14/2000WO2000054405A1 Resonator with variable resonance frequency
09/07/2000DE19908855A1 Rundfunkempfangsvorrichtung und Verfahren zum Steuern einer Rundfunkempfangsvorrichtung Radio receiving apparatus and method for controlling a broadcast receiving apparatus
09/06/2000EP1033813A2 Radio receiver system and method for controlling a radio receiver system
08/2000
08/29/2000US6112070 High frequency receiving circuit for mobile communication apparatus
08/03/2000WO2000045512A1 Tuning arrangement
08/03/2000WO2000045399A1 Multi-track integrated spiral inductor
07/2000
07/20/2000WO2000042659A2 System and method for esd protection
07/06/2000DE19959172A1 Empfängervorrichtung mit Demodulator-Abgleich sowie Verfahren dazu Receiver device with demodulator matching and method therefor
07/05/2000EP1016209A1 Communications apparatus
06/2000
06/27/2000CA2164522C Method and apparatus for identifying signaling channel
06/06/2000US6072992 High-frequency device
05/2000
05/24/2000CN1254220A Two-waveband tuning unit
05/18/2000WO2000028664A2 Fully integrated tuner architecture
05/02/2000US6057735 Amplifier for continuous high gain, narrowband signal amplification
04/2000
04/27/2000DE19845122A1 Resonance circuit alignment method
04/19/2000EP0610495B1 Television tuning apparatus
04/18/2000US6052571 Tuner for PSK or PAM data applications
02/2000
02/08/2000US6023406 LC composite component with variable capacitor and inductor
02/01/2000US6021322 AM radio receiver
02/01/2000US6020795 Electrically controllable impedance matching device for use in RF amplifier
01/2000
01/26/2000EP0975093A1 Integrated circuit with variable capacitor
01/25/2000US6018702 Tuned filter calibration system
01/20/2000WO2000003538A1 Television tuner employing micro-electro-mechanically-switched tuning matrix
01/13/2000DE19830616A1 System for adjusting natural resonance of coil
01/11/2000US6013958 Integrated circuit with variable capacitor
01/04/2000US6011965 Receiver with a tunable parallel resonant circuit
01/04/2000US6011770 Method and apparatus for high-order bandpass filter with linearly adjustable bandwidth
12/1999
12/30/1999DE19908475A1 Calibration system for YIG (yttrium-iron-garnet)-tuned filter (YTF) in spectrum analyzer
12/28/1999US6009318 Electronically adjustable balanced-to-unbalanced converters (balun)
11/1999
11/30/1999US5994985 Integrable high-Q tunable capacitor and method
11/23/1999US5990752 Method for mechanically tuning a voltage controlled oscillator
11/18/1999WO1999059239A1 Method for mechanically tuning a voltage controlled oscillator
11/16/1999US5987313 Apparatus for controlling tuning point and tuning circuit having function of controlling tuning point
11/02/1999US5978663 Antenna tuning circuit
10/1999
10/26/1999US5973519 Voltage controlled oscillator circuit capable of switching between oscillation frequency bands
10/21/1999DE19816490A1 Pre-selection filter layout for high frequency receivers
10/20/1999EP0950284A1 Method for calibrating a radio receiver, and a radio receiver
10/14/1999DE19904487A1 Measuring axis symmetrical electric or magnetic fields produced by electric or magnetic field generator
10/13/1999CN1231564A Tuning assembly for television
10/05/1999US5963842 Satellite broadcasting receiving tuner
09/1999
09/30/1999WO1999049568A1 Demodulator circuits
09/28/1999US5959516 Tunable-trimmable micro electro mechanical system (MEMS) capacitor
09/28/1999US5959515 High Q integrated resonator structure
08/1999
08/17/1999US5940114 Image forming apparatus for correcting positional deviations of an image
08/12/1999WO1999040679A1 Apparatus and methods for tuning bandpass filters
07/1999
07/20/1999US5926513 Receiver with analog and digital channel selectivity
06/1999
06/17/1999WO1999030416A1 An amplifier for continuous high gain, narrowband signal amplification
06/16/1999CN1043708C Method and apparatus for identifying signaling channel
06/09/1999EP0920735A1 Receiver with a tunable parallel resonant circuit
06/09/1999CA2224261A1 Low phase noise, high q, high gain amplifier in an integrated circuit
05/1999
05/18/1999US5905948 High frequency channel selecting circuit for radio receiver and method of manufacturing tuning circuits therefor
04/1999
04/28/1999EP0911960A1 Resonance circuit for balanced oscillator
04/07/1999EP0679297B1 Device and method for tuning a band-pass filter
03/1999
03/31/1999CN1212794A Receiver with tunable parallel resonant circuit
03/24/1999EP0903852A1 Aligning method for a multistage selective amplifier
03/24/1999CN1211858A Large dynamic range low-noise factor harmonic tuner
03/04/1999WO1999010976A1 Communications apparatus
03/04/1999CA2301748A1 Communications apparatus
01/1999
01/26/1999US5864267 Electronic-tuning type radio-frequency tuning circuit
01/12/1999US5859674 Tuning circuit for a receiver, particularly a television receiver
12/1998
12/30/1998CN1203485A Device and method for controlling frequency characteristic of filter
12/16/1998EP0883951A1 Receiver with filter offset correction
12/15/1998US5850595 Arrangement for reducing interference in tuned circuits in integrated circuits
11/1998
11/24/1998US5842120 Radio receiver with programmable digital tuner immune to manufacturing variations in varactor capacitance
10/1998
10/13/1998US5822687 Method and apparatus for automatic tuning calibration of electrically tuned filters
09/1998
09/30/1998EP0868025A1 Radio receiver
09/30/1998EP0868024A1 Radio receiver and method for adjusting the tuning frequency used in the same
09/30/1998CN1194536A Video frequency signal replay circuit
09/30/1998CN1194500A Voltage controlled oscillator circuit capable of changing over between oscillation frequency bands
09/16/1998CN2291753Y High-frequency magnetic field resonance frequency adjuster of remote controller
09/16/1998CN1193173A Inductor/capacitor combined element with variable capacitance and inductance
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