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H03C3/222
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H
ELECTRICITY
H03
Electronic circuits
H03C
MODULATION
H03C3/00
Angle modulation
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H03C3/222
using bipolar transistors
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Patents Grants
last 30 patents
Information
Patent Grant
Circuit arrangement for frequency modulation
Patent number
7,868,712
Issue date
Jan 11, 2011
Atmel Automotive GmbH
Andreas Hanselmann
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Modulation signal generation circuit, transmission/reception module...
Patent number
7,847,644
Issue date
Dec 7, 2010
Mitsubishi Electric Corporation
Takuya Suzuki
G01 - MEASURING TESTING
Information
Patent Grant
Ultra wide band, differential input/output, high frequency active m...
Patent number
7,587,187
Issue date
Sep 8, 2009
ITT Manufacturing Enterprises, Inc.
Michael A. Wyatt
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Direct digital polar modulator
Patent number
6,834,084
Issue date
Dec 21, 2004
Alexander Wayne Hietala
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and apparatus for modulation of a voltage controlled oscillator
Patent number
6,353,370
Issue date
Mar 5, 2002
Micro Linear Corporation
Robert Cox
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
VCO having control voltage and modulation signal applied to varactor
Patent number
5,905,414
Issue date
May 18, 1999
Murata Manufacturing Co., Ltd.
Yasuo Motoi
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Amplitude stabilized oscillator circuit
Patent number
5,801,592
Issue date
Sep 1, 1998
Sennheiser electronic GmbH & Co. KG
Wolfgang Mann
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Frequency modulator having a modulation varactor coupled to output...
Patent number
5,564,100
Issue date
Oct 8, 1996
Motorola, Inc.
Philip M. Huang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Cascode VCO frequency modulator
Patent number
5,502,420
Issue date
Mar 26, 1996
Vtech Communications, Ltd.
Michael J. Barclay
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Frequency modulator
Patent number
5,075,643
Issue date
Dec 24, 1991
Motorola, Inc.
Stephen B. Einbinder
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Zero crossing modulator
Patent number
5,030,928
Issue date
Jul 9, 1991
Wilson H. K. Ho
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Remote infrared transceiver and method of using same
Patent number
5,027,433
Issue date
Jun 25, 1991
H.M. Electronics, Inc.
Michael A. Menadier
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication apparatus and method of operating same
Patent number
4,977,610
Issue date
Dec 11, 1990
H.M. Electronics, Inc.
Donald A. Kutz
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Wide bond balanced output frequency modulator using a video signal...
Patent number
4,959,625
Issue date
Sep 25, 1990
Matsushita Electric Industrial Co., Ltd.
Fusahiro Kameoka
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Voltage controlled oscillator with frequency sensitivity control
Patent number
4,736,169
Issue date
Apr 5, 1988
Hughes Aircraft Company
Gary R. Weaver
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Voltage-controlled-oscillator with modulator
Patent number
4,721,926
Issue date
Jan 26, 1988
Alps Electric Co., Ltd.
Toshio Aota
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Voltage-controlled-oscillator with modulator
Patent number
4,721,927
Issue date
Jan 26, 1988
Alps Electric Co., Ltd.
Toshio Aota
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
FM wireless transmitter
Patent number
4,612,668
Issue date
Sep 16, 1986
Vinko Sarac
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Combined modulation and temperature compensation circuit
Patent number
4,511,863
Issue date
Apr 16, 1985
General Electric Company
Johannes J. Vandegraaf
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Multichannel frequency modulator
Patent number
4,442,415
Issue date
Apr 10, 1984
Nippon Electric Co., Ltd.
Shigeaki Ashida
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Circuit for linearizing frequency modulated oscillators on microstrip
Patent number
4,375,621
Issue date
Mar 1, 1983
AEL Microtel, Ltd.
Andres F. Schneiter
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Varactor controlled push-pull oscillator
Patent number
4,360,790
Issue date
Nov 23, 1982
Siemens Aktiengesellschaft
Rudolf Heise
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Means for linearizing a voltage variable capacitor controlled oscil...
Patent number
4,270,098
Issue date
May 26, 1981
Motorola, Inc.
George A. Bowman
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Crystal oscillator including adjustable auto transformer for neutra...
Patent number
4,195,268
Issue date
Mar 25, 1980
Motorola, Inc.
Sviataslov Zarkov
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Resonant linear frequency modulator
Patent number
4,189,690
Issue date
Feb 19, 1980
Hughes Aircraft Company
George F. Bock
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Narrow deviation voltage controlled crystal oscillator for mobile r...
Patent number
4,134,085
Issue date
Jan 9, 1979
Michael M. Driscoll
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Circuit for compensating VCO nonlinearities in frequency modulated...
Patent number
4,117,422
Issue date
Sep 26, 1978
Motorola, Inc.
Albert Henry Hunt
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Frequency linearization and sensitivity equalization of a frequency...
Patent number
4,088,968
Issue date
May 9, 1978
RCA Corporation
Bortolo M. Pradal
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Wide range frequency modulation of narrow loop bandwidth phase-lock...
Patent number
4,074,209
Issue date
Feb 14, 1978
RCA Corporation
Morris Lysobey
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Temperature compensated variable frequency crystal oscillator
Patent number
3,995,233
Issue date
Nov 30, 1976
Sony Corporation
Toshihiko Waku
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
MODULATION SIGNAL GENERATION CIRCUIT, TRANSMISSION/RECEPTION MODULE...
Publication number
20090224845
Publication date
Sep 10, 2009
MITSUBISHI ELECTRIC CORPORATION
Takuya Suzuki
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
CIRCUIT ARRANGEMENT FOR FREQUENCY MODULATION
Publication number
20080211595
Publication date
Sep 4, 2008
Andreas HANSELMANN
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Ultra wide band, differential input/output, high frequency active m...
Publication number
20080003972
Publication date
Jan 3, 2008
ITT Manufacturing Enterprises, Inc.
Michael A. Wyatt
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Direct digital polar modulator
Publication number
20030206056
Publication date
Nov 6, 2003
Alexander Wayne Hietala
H03 - BASIC ELECTRONIC CIRCUITRY