Patents for H03J 3 - Continuous tuning (1,764)
09/1998
09/15/1998US5808531 Voltage-controlled variable tuning circuit
09/09/1998EP0863623A2 Device and method for controlling frequency characteristic of a filter
08/1998
08/26/1998CN1191377A Varirable capacitor and LC composite part using same
08/18/1998US5797086 Method for tuning channels in a voltage synthesizer tuning circuit
07/1998
07/29/1998EP0855804A2 Receiver with analog and digital channel selectivity
07/22/1998EP0854567A1 Voltage controlled oscillator circuit capable of switching between oscillation frequency bands
07/16/1998WO1998031096A1 Method for calibrating a radio receiver, and a radio receiver
07/09/1998WO1998029958A1 Receiver with a tunable parallel resonant circuit
07/02/1998DE19715005C1 Oscillator circuit for GHz range
06/1998
06/30/1998US5774555 Switched capacitor bandpass filter for detecting pilot signal
05/1998
05/26/1998US5757864 Receiver with filters offset correction
05/26/1998US5757247 Device and method for tuning a band-pass filter utilizing mixing results with DC component removed
05/14/1998DE19709226A1 Circuit arrangement for generating high frequency alternating voltages and currents with high power esp. for partial discharge measurement at gradient coils
05/05/1998US5749048 Receiver
04/1998
04/23/1998WO1998017000A1 Tunable filter with q-multiplication
04/01/1998EP0833447A2 Tuning circuit
03/1998
03/04/1998CN1175326A High-frequency device
02/1998
02/25/1998EP0825712A2 Electronically tuned matching networks using adjustable inductance elements and resonant tank circuits
02/24/1998US5722050 Transmitter-receiver system for use in an audio equipment
01/1998
01/07/1998CN1036970C Double tuned circuit with balaced output and image trap
12/1997
12/17/1997EP0448729B1 Tune detecting circuit
12/11/1997DE19709429A1 Transceiver signal improvement circuit for multiple channel radio communications system
12/10/1997EP0812066A1 High-frequency device
12/09/1997US5697090 SHF converter
11/1997
11/12/1997CN1164795A Input circuit for television tuner
11/06/1997DE19715956A1 Eingangsschaltung für einen Fernsehtuner Input circuit for a television tuner
10/1997
10/15/1997EP0801358A2 Method and system for operating a system composed of a base station and a contactless coupled transponder
10/14/1997US5678212 Electronic tuning circuit for an AM receiver
10/14/1997US5678211 Television tuning apparatus
10/08/1997EP0800185A1 Apparatus comprising at least one controllable inductance
10/01/1997EP0587886B1 A method for tuning an rf bandpass filter
10/01/1997EP0569392B1 Method and circuit for automatic, high-precision frequency fine-tuning
09/1997
09/30/1997US5673088 Multi-broadcast selection apparatus
09/24/1997CN1160309A Tuning circuit structure of phase locked loop
08/1997
08/26/1997US5661432 Linear tunable Gm-C integrator
08/19/1997US5659352 Method and apparatus capable of reducing the tuning time of cable television signals
08/07/1997DE19703219A1 High frequency tuning circuit with input tuning transformer
07/1997
07/30/1997EP0786864A1 Tuner for the reception of digital signals
07/22/1997US5650754 Phase-loched loop circuits and voltage controlled oscillator circuits
07/03/1997WO1997023953A1 High-frequency device
06/1997
06/18/1997EP0779707A1 RF filter arrangement with image trap
06/05/1997DE19650096A1 Satellite radio receiver tuner
05/1997
05/28/1997EP0776089A1 Radio receiver having automatic broadcasting-station selecting function
05/28/1997CN1150723A Method for tuning in to channels in voltage synthesize tuning manner
05/22/1997DE19647383A1 Voltage-controlled oscillator
04/1997
04/30/1997DE19540139A1 Detection and adjustment of middle frequency of band pass filter
04/29/1997US5625316 Tuning circuit for an RC filter
04/16/1997CN1147729A Procedure for resonant circuit tuning by changing feed voltage of capacitance diode
04/08/1997US5619283 Double tuned RF circuit with balanced secondary
04/02/1997EP0766391A1 Radio receiver
04/02/1997CN1034426C Cucumber mosaic virus coat protein gene
03/1997
03/12/1997EP0762683A2 Receiver for reception of supplementary (RDS) data in a broadcast programme
02/1997
02/27/1997WO1997007618A1 Receiver with filter offset correction
02/26/1997EP0759657A1 Method for the tuning of a resonant circuit by changing the voltage supply of a capacitance diode
11/1996
11/19/1996US5576753 Image forming apparatus which performs registration correction for plural image
11/13/1996CN1135696A Tuning circuit for receiver, especially for television receiver
11/12/1996US5574410 Impedance matching network
11/05/1996US5572170 Electronically tuned matching networks using adjustable inductance elements and resonant tank circuits
10/1996
10/15/1996US5565821 Voltage controlled oscillator with improved tuning linearity
10/02/1996CN1132447A Method and apparatus capable of reducing tuning time of cable television signals
09/1996
09/25/1996CN1131855A Multi-broadcast channel selection apparatus
09/03/1996US5553319 Routing YIG-tuned mixer
08/1996
08/14/1996EP0726652A1 Linear tunable Gm-C integrator
08/14/1996EP0726648A1 Tuning circuit for a receiver apparatus particularly a television receiver
08/11/1996CA2169235A1 Linear tunable gm-c integrator
07/1996
07/31/1996CN1128092A Method and apparatus for identifying signaling channel
07/02/1996US5532651 Tunable voltage controlled oscillator having microstrip resonator with cuts for better tuning
06/1996
06/04/1996US5524289 Method and circuit for an automatic, high precision frequency fine tuning
06/04/1996US5524288 Tuning of a radio receiver
05/1996
05/28/1996USRE35254 Conversion device for doubling/dividing the rate of a serial bit stream
04/1996
04/23/1996US5511235 Apparatus for detecting a signaling channel during scanning including a controlled frequency converter circuit and a controlled filter bandwidth, and a method therefor
04/23/1996US5511012 Apparatus comprising a circuit having an input/output response controllable by a control signal, and approximation method
04/23/1996US5510756 Strip transmission line having a tunable electric length
04/10/1996CN1120283A Double tuned RF circuit with balanced secondary
04/10/1996CN1120267A A tuning circuit
03/1996
03/27/1996CN1119391A Bandswitchable double tuned RF circuit with balanced secondary
03/20/1996EP0310632B1 Cross-flow filtration device and method of manufacturing said device
03/19/1996CA2032668C Tuning arrangement
03/12/1996US5499056 Bandswitchable double tuned RF circuit with balanced secondary
02/1996
02/28/1996CN1117667A Switched capacitor bandpass filter for detecting pilot signal
02/15/1996DE19512858A1 Switched capacitor bandpass filter for pilot signal recognition
02/14/1996EP0696871A1 Bandswitchable double tuned RF circuit with balanced secondary
02/14/1996EP0696870A1 Double tuned RF circuit with balanced secondary
01/1996
01/09/1996US5483693 Combining antenna element signals
12/1995
12/13/1995EP0686318A1 High-frequency wideband tuner
12/12/1995US5475871 Communication system with control signal based tuning
11/1995
11/28/1995CA2048148C Transmitter
11/09/1995WO1995030283A1 Method and apparatus for identifying signaling channel
11/07/1995US5465417 Integrated barium-ferrite tuned mixer for spectrum analysis to 60 GHz
11/02/1995EP0679297A1 Device and method for tuning a band-pass filter
10/1995
10/25/1995EP0678981A2 High-frequency receiving stage
09/1995
09/21/1995DE19507951A1 Tuning circuitry with integrated channel selection HV feed circuit
09/19/1995US5451915 Active filter resonator and system and negative resistance generator usable therein
09/05/1995US5448769 Method for tuning the medium frequency of an RF bandpass filter by determining and interpolating in relation to medium frequencies at and offsets from a nominal carrier frequency
08/1995
08/31/1995WO1995019074A3 High-frequency wideband tuner
07/1995
07/18/1995CA1336341C Powering and communication apparatus and method
07/13/1995WO1995019074A2 High-frequency wideband tuner
06/1995
06/27/1995US5428829 Method and apparatus for tuning and aligning an FM receiver
06/21/1995EP0393103B1 Antenna structure for providing a uniform field
06/07/1995EP0656683A1 Arrangement for the reduction of disturbances in oscillating loops in integrated circuits
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