Patents
Sitemap › H03 - Basic electronic circuitry › H03J - Tuning resonant circuits; Selecting resonant circuits › H03J 3 - Continuous tuning
Patents for H03J 3 - Continuous tuning (1,764)
10/2005
10/11/2005US6954115 Methods and apparatus for tuning successive approximation
10/06/2005US20050221789 Bandpass filter with integrated variable gain function using improved resistor array
10/06/2005US20050221788 Bandpass filter with integrated variable gain function
10/06/2005US20050221783 Programmable if frequency filter for enabling a compromise between DC offset rejection and image rejection
10/06/2005US20050218973 Bandwidth adaptation rule for adaptive noise filter for inverse filtering with improved disturbance rejection bandwidth and speed
10/05/2005EP1583265A1 Method for calibrating a transmitter and a receiver path of a communication device and test system therefor
10/05/2005EP1583247A1 Programmable IF frequency filter for enabling a compromise between DC offset rejection and image rejection
10/05/2005CN1677907A Method for calibrating a transmitter and a receiver path of a communication device and test system therefor
10/05/2005CN1677843A Programmable if frequency filter for enabling a compromise between DC offset rejection and phase frequency interference rejection
09/2005
09/29/2005US20050215219 Direct tuning of radio receiver integrated circuit
09/29/2005US20050212612 Tunable filter and portable telephone
09/29/2005US20050212590 High-speed Gm-C tuning
09/28/2005EP1580636A1 Semiconductor device with temperature compensation circuit
09/27/2005US6950152 Television tuner which has leveled a gain deviation in the same band
09/22/2005DE102004008701A1 Circuit having adjustable capacitance for voltage controlled oscillator as for compact discs, has two parallel capacitor units whose capacitance is governed by two separate applied voltages
09/14/2005EP1573911A1 Tunable tracking filter
09/08/2005US20050195053 Variable capacitor circuit and integrated circuit containing the same
09/08/2005DE102004008706A1 Voltage controlled oscillator circuit has an inductance and a serial capacitance arrangement with partial capacitances connected in parallel, with each capacitance being dependent on the value of an applied pre-voltage
09/08/2005DE102004005547A1 Anordnung mit zu- und abschaltbarer Kapazität und Verfahren zum Zu- und Abschalten einer Kapazität Arrangement with switched on and off capacity and method for connecting and disconnecting a capacity
09/07/2005CN1665127A Variable capacitor circuit and integrated circuit containing the same
09/01/2005US20050190305 Television tuner for balance-inputting signal to balanced mixer
09/01/2005US20050190022 Arrangement with a capacitor which can be connected into a circuit and disconnected therefrom and associated method
09/01/2005US20050189999 Integrated electronic circuit comprising a tunable resonator
09/01/2005US20050189998 Integrable phase-locked loop including an acoustic resonator
09/01/2005US20050189997 Integrable amplitude-locked loop including an acoustic resonator
08/2005
08/31/2005CN1663123A Tuner input filter with electronically adjustable center frequency for adapting to antenna characteristic
08/31/2005CN1663122A Tuner input filter with electronically adjustable center frequency for adapting to antenna characteristic
08/25/2005WO2004105238B1 An enclosure and substate structure for a tuner module
08/24/2005CN1216458C Semiconductor device with temp compensating circuit
08/23/2005US6933984 Television tuner which maintains UHF band tuning circuit bandwidth constant in low to high band range
08/18/2005US20050179056 System for resonant circuit tuning
08/18/2005DE102004004707A1 Kapazitätsdioden-Alternativschaltung Varactor diode alternative circuit
08/17/2005CN1656699A Bandwidth adaptation rule for adaptive noise filter for inverse filtering with improved disturbance rejection bandwidth and speed
08/17/2005CN1656679A Methods and apparatus for tuning successive approximation
08/16/2005US6930565 Fully integrated automatically-tuned RF and IF active bandpass filters
08/11/2005WO2005074132A1 Capacitor-diode alternative circuit
08/11/2005US20050175136 High precision continuous time gmC BPF tuning
08/11/2005US20050174199 Integrable acoustic resonator and method for integrating such resonator
08/03/2005CN1649265A Regulatable filter and portable telephone
08/02/2005US6925291 Electronic alignment system for a television signal tuner
07/2005
07/28/2005US20050162570 Tuner input filter with electronically adjustable center frequency for adapting to antenna characteristic
07/27/2005CN1647399A Semiconductor integrated circuit for radio apparatus and radio communication apparatus
07/27/2005CN1647377A Tuning apparatus
07/27/2005CN1212710C TV tuning element
07/21/2005US20050156700 Integrated spiral inductor
07/21/2005US20050155851 Variable capacitance membrane actuator for wide band tuning of microstrip resonators and filters
07/14/2005US20050153677 System and method for on-chip filter tuning
07/13/2005CN1638265A Tuning circuit with amplitude attenuation function and integrated circuit for radio communication apparatus
07/12/2005US6917252 Fully integrated automatically-tuned RF and IF active bandpass filters
07/07/2005WO2004105240A9 Tunign device and radio-wave corrected timepiece
07/07/2005US20050148312 Bandpass filter with tunable resonator
07/07/2005US20050147193 Tuning circuit with amplitude attenuation function and integrated circuit for radio communication apparatus
07/05/2005US6915121 Integrated tunable filter for broadband tuner
07/05/2005US6915114 Direct tuning of embedded integrated circuit components
07/05/2005US6914785 Variable electronic circuit component
06/2005
06/30/2005WO2004105238A3 An enclosure and substate structure for a tuner module
06/30/2005US20050143031 Multi-band receiver
06/23/2005US20050134395 Circuit arrangement
06/16/2005US20050128008 Network
06/15/2005EP1540834A1 Dual conversion tuner having a first if filter without accurate center frequency
06/15/2005CN1628421A A multi-band receiver
06/15/2005CN1206803C Input circuit for tuner and semiconductor device
06/09/2005US20050122243 Semiconductor integrated circuit for a radio apparatus and radio communication apparatus
06/08/2005EP1538751A2 Tuning circuit with amplitude attenuation function and integrated circuit for radio communication apparatus
06/08/2005CN1625836A Television tuner and printed circuit board used therein
06/02/2005WO2005034356A3 Phase-locked loop bandwidth calibration circuit and method thereof
06/01/2005CN1204775C Frequency matching device for mobile system
05/2005
05/26/2005US20050113051 Band switchable type tuning circuit of television signal
05/25/2005EP1533900A2 Band switchable type tuning circuit of television signal
05/25/2005EP1532736A1 Methods and apparatus for tuning using successive aproximation
05/25/2005CN1619961A Tuner of acoustic device
05/19/2005US20050107055 Integrated switchless programmable attenuator and low noise amplifier
05/17/2005US6894573 Tunable negative resistance device
05/12/2005WO2005043678A1 Receiving loop antenna
05/12/2005US20050101274 Television tuner and printed circuit board used therein
05/12/2005US20050099249 Linear tuning circuit and tuning method thereof
05/05/2005US20050093724 Comparator
05/04/2005EP1528678A2 Comparator
05/04/2005CN1612466A 比较器 Comparators
04/2005
04/26/2005US6885853 Communications receiver with integrated IF filter and method therefor
04/26/2005US6885275 Multi-track integrated spiral inductor
04/21/2005WO2005036692A1 Frequency and bandwidth tunable band-pass filter
04/21/2005US20050083154 Receiver
04/20/2005EP1524775A1 Radio-frequency receiver and integrated circuit for use in receiver
04/20/2005EP0920735B1 Receiver with a tunable parallel resonant circuit
04/20/2005CN1607737A Radio-frequency receiver and integrated circuit for use in receiver
04/20/2005CN1198386C Electronic tuner
04/14/2005WO2005034356A2 Phase-locked loop bandwidth calibration circuit and method thereof
04/14/2005US20050079839 Radio-frequency receiver and integrated circuit for use in receiver
04/13/2005EP1523098A1 Receiver including linearity compensation in the receive band
04/12/2005US6879816 Integrated switchless programmable attenuator and low noise amplifier
04/07/2005WO2005020433A3 Broadband integrated digitally tunable filters
04/07/2005US20050073369 Phase-locked loop bandwidth calibration circuit and method thereof
03/2005
03/30/2005CN1601919A Receiver including linearity compensation in the receive band
03/24/2005US20050066368 Receiver including linearity compensation in the receive band
03/22/2005US6870447 Tuning circuit
03/17/2005DE10338346A1 Resonant circuit with capacity and inductance includes extra inductance in case of parallel connection or extra capacitance in case of series connection
03/15/2005US6867745 AM antenna noise reducing
03/08/2005US6865381 System and method for on-chip filter tuning
03/08/2005US6864728 Frequency multiplier and amplification circuit
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