using varactors

Industry

CPC
H03J7/08

This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

HELECTRICITY H03Electronic circuits H03JTUNING RESONANT CIRCUITS SELECTING RESONANT CIRCUITS H03J7/00Automatic frequency control Automatic scanning over a band of frequencies

Current Industry

H03J7/08using varactors

Industries

Patents Grantslast 30 patents

Information Patent Grant
Solid-state impedance matching systems including a hybrid tuning ne...
- Patent number 10,229,816
- Issue date Mar 12, 2019
- MKS Instruments, Inc.
- David J. Coumou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Offset signal phasing for a multiple frequency source system
- Patent number 7,653,370
- Issue date Jan 26, 2010
- RF Magic, Inc.
- Biagio Bisanti
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Multiple frequency source system and method of operation
- Patent number 7,528,665
- Issue date May 5, 2009
- RF Magic, Inc.
- Francesco Coppola
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Circuit arrangement for generating a reference signal
- Patent number 7,459,946
- Issue date Dec 2, 2008
- Siemens Aktiengesellschaft
- Jan Bollenbeck
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
System and method for mitigating phase pulling in a multiple freque...
- Patent number 7,355,483
- Issue date Apr 8, 2008
- RF Magic, Inc.
- Biagio Bisanti
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Modulation scheme for FDD/TDD transceivers
- Patent number 7,308,024
- Issue date Dec 11, 2007
- Thomson Licensing
- Chandra Mohan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency correcting method for cellular phone terminal
- Patent number 7,046,968
- Issue date May 16, 2006
- NEC Corporation
- Yusuke Kimata
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Relating to demodulator alignment correction in tuners
- Patent number 6,567,488
- Issue date May 20, 2003
- Zarlink Semiconductor Limited
- Nicholas P. Cowley
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Phase locked loop filter utilizing a tuned filter
- Patent number 6,420,916
- Issue date Jul 16, 2002
- Rockwell Collins, Inc.
- Richard A. Freeman
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Frequency conversion circuit having a variable trap circuit tuned t...
- Patent number 6,327,464
- Issue date Dec 4, 2001
- NEC Corporation
- Kenichi Hayasaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for lowpass filter calibration in a satellite receiver
- Patent number 6,134,282
- Issue date Oct 17, 2000
- LSI Logic Corporation
- Nadav Ben-Efraim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Radio pager
- Patent number 6,101,369
- Issue date Aug 8, 2000
- NEC Corporation
- Satoshi Takahashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Compensated frequency source with latched temperature compensation,...
- Patent number 5,977,839
- Issue date Nov 2, 1999
- NEC Corporation
- Soichi Tsumura
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Band centering frequency multiplier
- Patent number 5,973,570
- Issue date Oct 26, 1999
- Motorola, Inc.
- Raul Salvi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Self centering frequency multiplier
- Patent number 5,903,196
- Issue date May 11, 1999
- Motorola, Inc.
- Raul Salvi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digital and analog reception apparatus
- Patent number 5,825,833
- Issue date Oct 20, 1998
- Mitsumi Electric Co., Ltd.
- Yoichi Sakaue
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for temperature compensation of a reference os...
- Patent number 5,740,525
- Issue date Apr 14, 1998
- Motorola, Inc.
- John H. Spears
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High frequency receiving apparatus
- Patent number 5,600,680
- Issue date Feb 4, 1997
- Matsushita Electric Industrial Co., Ltd.
- Akira Mishima
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
AFC circuit and IC of the same adapted for lower heterodyne convers...
- Patent number 5,404,587
- Issue date Apr 4, 1995
- Sony Corporation
- Taiwa Okanobu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Paging receiver with continuously tunable antenna and RF amplifier
- Patent number 5,077,834
- Issue date Dec 31, 1991
- Telefind Corporation
- Andrew A. Andros
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Paging receiver with continuously tunable antenna
- Patent number 5,052,049
- Issue date Sep 24, 1991
- Telefind Corporation
- Andrew A. Andros
- G08 - SIGNALLING
Information Patent Grant
Switching-over, automatic matching filter for radio transmitter and...
- Patent number 5,023,941
- Issue date Jun 11, 1991
- Thomson-CSF
- Jean-Michel Trumpff
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Paging receiver with continuously tunable antenna and RF amplifier
- Patent number 5,012,235
- Issue date Apr 30, 1991
- Telefind Corporation
- Andrew A. Andros
- G08 - SIGNALLING
Information Patent Grant
Radio receiver circuit with tuning feedback control for a tunable b...
- Patent number 4,965,853
- Issue date Oct 23, 1990
- U.S. Philips Corp.
- Michael E. Barnard
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Television receiver having an automatic radiofrequency resonant cir...
- Patent number 4,843,636
- Issue date Jun 27, 1989
- U.S. Philips Corporation
- Johannes H. Hendriks
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Voltage controlled oscillator having constant tuning bias voltage
- Patent number 4,835,492
- Issue date May 30, 1989
- Matsushita Electric Industrial Co., Ltd.
- Hideyuki Ikuhara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Automatic frequency control circuit for a television signal receivi...
- Patent number 4,630,118
- Issue date Dec 16, 1986
- Victor Company of Japan, Ltd.
- Tomohiro Suzuki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Automatic frequency control for local oscillator used with an AM st...
- Patent number 4,583,244
- Issue date Apr 15, 1986
- Motorola, Inc.
- Lawrence M. Ecklund
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Adjustable and selective electrical filters and methods of tuning them
- Patent number 4,417,220
- Issue date Nov 22, 1983
- Decca Limited
- Brian T. Holyman
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High-frequency channel selector having fixed bandpass filters in th...
- Patent number 4,408,347
- Issue date Oct 4, 1983
- Texas Instruments Incorporated
- Darrell L. Ash
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
SOLID-STATE IMPEDANCE MATCHING SYSTEMS INCLUDING A HYBRID TUNING NE...
- Publication number 20170345620
- Publication date Nov 30, 2017
- MKS Instruments, Inc.
- David J. Coumou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
System and Method for Mitigating Phase Pulling in a Mulitple Freque...
- Publication number 20070200640
- Publication date Aug 30, 2007
- RF Magic, Inc.
- Biagio Bisanti
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Multiple Frequency Source System and Method of Operation
- Publication number 20070183014
- Publication date Aug 9, 2007
- RF Magic, Inc.
- Francesco Coppola
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Offset Signal Phasing for a Multiple Frequency Source System
- Publication number 20070176663
- Publication date Aug 2, 2007
- RF Magic, Inc.
- Biagio Bisanti
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Circuit arrangement for generating a reference signal
- Publication number 20070035350
- Publication date Feb 15, 2007
- Jan Bollenbeck
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Modulation scheme for fdd/tdd transceivers
- Publication number 20040136317
- Publication date Jul 15, 2004
- Chandra Mohan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Frequency correcting method for cellular phone terminal
- Publication number 20030045259
- Publication date Mar 6, 2003
- NEC Corporation
- Yusuke Kimata
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Process and device for the frequency clamping of a radio signal rec...
- Publication number 20020061737
- Publication date May 23, 2002
- Gaston Laurens
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Electronic circuit for and a method of controlling the output frequ...
- Publication number 20020024393
- Publication date Feb 28, 2002
- Lars-Peter Kunkel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

using varactors

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Solid-state impedance matching systems including a hybrid tuning ne...

Offset signal phasing for a multiple frequency source system

Multiple frequency source system and method of operation

Circuit arrangement for generating a reference signal

System and method for mitigating phase pulling in a multiple freque...

Modulation scheme for FDD/TDD transceivers

Frequency correcting method for cellular phone terminal

Relating to demodulator alignment correction in tuners

Phase locked loop filter utilizing a tuned filter

Frequency conversion circuit having a variable trap circuit tuned t...

Method for lowpass filter calibration in a satellite receiver

Radio pager

Compensated frequency source with latched temperature compensation,...

Band centering frequency multiplier

Self centering frequency multiplier

Digital and analog reception apparatus

Method and apparatus for temperature compensation of a reference os...

High frequency receiving apparatus

AFC circuit and IC of the same adapted for lower heterodyne convers...

Paging receiver with continuously tunable antenna and RF amplifier

Paging receiver with continuously tunable antenna

Switching-over, automatic matching filter for radio transmitter and...

Paging receiver with continuously tunable antenna and RF amplifier

Radio receiver circuit with tuning feedback control for a tunable b...

Television receiver having an automatic radiofrequency resonant cir...

Voltage controlled oscillator having constant tuning bias voltage

Automatic frequency control circuit for a television signal receivi...

Automatic frequency control for local oscillator used with an AM st...

Adjustable and selective electrical filters and methods of tuning them

High-frequency channel selector having fixed bandpass filters in th...

Patents Applicationslast 30 patents

SOLID-STATE IMPEDANCE MATCHING SYSTEMS INCLUDING A HYBRID TUNING NE...

System and Method for Mitigating Phase Pulling in a Mulitple Freque...

Multiple Frequency Source System and Method of Operation

Offset Signal Phasing for a Multiple Frequency Source System

Circuit arrangement for generating a reference signal

Modulation scheme for fdd/tdd transceivers

Frequency correcting method for cellular phone terminal

Process and device for the frequency clamping of a radio signal rec...

Electronic circuit for and a method of controlling the output frequ...