H03F

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Description

AMPLIFIERS (measuring, testing G01R; optical parametric amplifiers G02F; circuit arrangements with secondary emission tubes H01J 43/30; masers, lasers H01S; dynamo-electric amplifiers H02K; control of amplification H03G; coupling arrangements independent of the nature of the amplifier, voltage dividers H03H; amplifiers capable only of dealing with pulses H03K; repeater circuits in transmission lines H04B 3/36, H04B 3/58; application of speech amplifiers in telephonic communication H04M 1/60, H04M 3/40)

Subclasses

Not Available
Subclass Title
1/00 Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
1/02 Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
1/04 Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
1/06 Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators
1/07 Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators Doherty-type amplifiers

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Recent Patents

Not Available
Patent #TitleFiling DateIssue DatePatent Owner
9899960 Cascode switch for amplifier Jun 07, 17 Feb 20, 18 , SKYWORKS SOLUTIONS, INC.
9899967 Embedded harmonic termination on high power RF transistor Feb 01, 17 Feb 20, 18 , Infineon Technologies AG
9898028 Low voltage, highly accurate current mirror Jun 30, 15 Feb 20, 18 , QUALCOMM Incorporated
9899978 Class D amplifier circuit Mar 22, 17 Feb 20, 18 , Cirrus Logic, Inc.
9899974 Chopper stabilized amplifier Oct 14, 16 Feb 20, 18 , ROHM CO., LTD.
9900204 Multiple functional equivalence digital communications interface Feb 22, 13 Feb 20, 18 , Qorvo US, Inc.
9899966 Wideband high dynamic range low noise amplifier Jun 16, 16 Feb 20, 18 , BAE Systems Information and Electronic Systems Integration Inc.
9899971 Offset detection circuit Feb 21, 17 Feb 20, 18 , Kabushiki Kaisha Toshiba
9899969 Transimpedance amplifier with variable inductance input reducing peak variation over gain Aug 22, 17 Feb 20, 18 , Inphi Corporation
9897673 Circuit arrangement, gradient amplifier, and method for compensating for nonlinearities of an amplifier output stage Feb 16, 17 Feb 20, 18 , SIEMENS AKTIENGESELLSCHAFT
9899962 Power amplifier Feb 15, 17 Feb 20, 18 , Murata Manufacturing Co Ltd.
9899976 Compact chireix combiner and impedance matching circuit Jun 17, 16 Feb 20, 18 , Infineon Technologies Americas Corp.
9899965 Differential amplifiers with improved slew performance Sep 24, 15 Feb 20, 18 , Analog Devices Inc.
9899968 Low noise amplifier circuit Dec 21, 15 Feb 20, 18 , SAMSUNG-ELECTRO-MECHANICS CO. LTD.
9899973 Split cascode circuits and related communication receiver architectures Mar 18, 16 Feb 20, 18 , Inphi Corporation
9899961 Enhanced amplifier efficiency through cascode current steering Feb 12, 16 Feb 20, 18 , SKYWORKS SOLUTIONS, INC.
9899877 Inductive power transfer system May 31, 13 Feb 20, 18 , Drayson Technologies (Europe) Limited
9899970 Current enhanced driver for high-power solid-state radio frequency power amplifiers Jun 18, 15 Feb 20, 18 , Eridan Communications, Inc.
9899375 Co-integration of self-aligned and non-self aligned heterojunction bipolar transistors Aug 02, 16 Feb 20, 18 , Globalfoundries Inc.
9899964 Class AB amplifier with bias control Jun 30, 15 Feb 20, 18 , BANG & OLUFSEN A/S

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Recent Publications

Not Available
Publication #TitleFiling DatePub DatePatent Owner
2018/0054,167 HIGH LOOP-GAIN PHEMT REGULATOR FOR LINEAR RF POWER AMPLIFIER May 22, 17 Feb 22, 18 , Not available
2018/0054,171 APPARATUS AND METHODS FOR LOW NOISE AMPLIFIERS WITH MID-NODE IMPEDANCE NETWORKS Aug 04, 17 Feb 22, 18 , Not available
2018/0054,165 TECHNIQUES FOR PRODUCING QUANTUM AMPLIFIERS AND RELATED SYSTEMS AND METHODS Feb 26, 16 Feb 22, 18 , Yale University
2018/0054,222 DIGITAL VARIABLE CAPACITANCE CIRCUIT, RESONANT CIRCUIT, AMPLIFICATION CIRCUIT, AND TRANSMITTER Oct 30, 17 Feb 22, 18 , Not available
2018/0054,173 DUTY CYCLE CLIPPER Mar 08, 16 Feb 22, 18 , ICEpower a/s
2018/0054,223 ACTIVE EQUALIZING NEGATIVE RESISTANCE AMPLIFIER FOR BI-DIRECTIONAL BANDWIDTH EXTENSION Aug 18, 16 Feb 22, 18 , Not available
2018/0054,169 AMPLIFIER BIASING CIRCUITS AND METHOD Aug 21, 17 Feb 22, 18 , Not available
2018/0053,997 PHASED ARRAY ANTENNA DEVICE Apr 01, 16 Feb 22, 18 , Mitsubishi Electric Corporation
2018/0054,172 DEVICES AND METHODS RELATED TO ADJUSTING POWER PROVIDED TO POWER AMPLIFIERS Jul 27, 16 Feb 22, 18 , Not available
2018/0054,168 FREQUENCY-COMPENSATED TRANSCONDUCTANCE AMPLIFIER Jan 26, 16 Feb 22, 18 , Not available
2018/0054,200 Differential Logic with Low Voltage Supply Aug 17, 17 Feb 22, 18 , Not available
2018/0054,191 LOW POWER BUFFER WITH DYNAMIC GAIN CONTROL Nov 01, 17 Feb 22, 18 , Not available
2018/0054,170 DISTORTION COMPENSATION DEVICE AND COEFFICIENT UPDATE METHOD Aug 14, 17 Feb 22, 18 , Fujitsu Limited
2018/0054,213 FEED-FORWARD OPERATIONAL AMPLIFIER NOISE CANCELLATION TECHNIQUE AND ASSOCIATED FILTER AND DELTA-SIGMA MODULATOR Jul 17, 17 Feb 22, 18 , Not available
2018/0054,185 ANTENNA IMPEDANCE MATCHING USING NEGATIVE IMPEDANCE CONVERTER AND PRE- AND POST-MATCHING NETWORKS Mar 24, 16 Feb 22, 18 , Not available
2018/0054,882 CLAMPING SPRING DESIGN TO APPLY CLAMPING FORCE TO SMT POWER AMPLIFIER DEVICE Aug 17, 17 Feb 22, 18 , Panasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America
2018/0054,166 APPARATUS AND METHODS FOR BIASING LOW NOISE AMPLIFIERS Aug 04, 17 Feb 22, 18 , Not available
2018/0048,266 AMPLIFIER CIRCUIT WITH OVERSHOOT SUPPRESSION Oct 25, 17 Feb 15, 18 , Novatek Microelectronics Corp.
2018/0048,069 CAPACITIVELY COUPLED PATCH ANTENNA Oct 06, 17 Feb 15, 18 , Not available
2018/0048,967 Signal Amplifier Oct 24, 17 Feb 15, 18 , Not available

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Patents Issued To Date - By Filing Year

Average Time to Issuance

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