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
9816375 System and methods for damping a resonant antenna in an NMR downhole tool Aug 13, 15 Nov 14, 17 , Halliburton Energy Services Inc.
9818821 Integrated RF front end system Jul 21, 16 Nov 14, 17 , SKYWORKS SOLUTIONS, INC.
9819260 Integrated circuit charge pump with failure protection Jan 15, 15 Nov 14, 17 , NXP B.V.
9819309 Output stage for class AB amplifier Apr 11, 14 Nov 14, 17 , Snaptrack Inc.
9819310 Apparatus and methods for multi-mode power amplifiers Sep 12, 16 Nov 14, 17 , SKYWORKS SOLUTIONS, INC.
9819311 Apparatus and a method for providing a supply control signal for a supply unit Feb 26, 15 Nov 14, 17 , Intel IP Corporation
9819312 Vehicular audio-amplifier controller Dec 11, 14 Nov 14, 17 , Denso Corporation
9819313 Envelope detectors with high input impedance Jan 26, 16 Nov 14, 17 , Analog Devices Inc.
9819314 Method and circuit for PVT stabilization of dynamic amplifiers Jan 31, 17 Nov 14, 17 , 501 Board of Regents The University of Texas System
9819315 Scaleable RF tuned low noise amplifier Nov 19, 15 Nov 14, 17 , Sunrise Micro Devices, Inc.
9819316 Apparatus and method for gallium nitride (GaN) amplifiers Apr 20, 16 Nov 14, 17 , Lockheed Martin Corporation
9819317 Modular RF matrix switch Aug 20, 15 Nov 14, 17 , Quintech Electronics & Communications, Inc.
9819318 Architecture of a low bandwidth predistortion system for non-linear RF components Dec 21, 11 Nov 14, 17 , TELEFONAKTIEBOLAGET L M ERICSSON (publ)
9819319 Method and system for a pseudo-differential low-noise amplifier at Ku-band Aug 09, 16 Nov 14, 17 , MaxLinear Inc.
9819320 Coaxial amplifier device Jan 24, 17 Nov 14, 17 , The Government of the United States of America as Represented by the Secretary of the Air Force
9819322 Wireless communication device and method of operating the same Oct 27, 14 Nov 14, 17 , Samsung Electronics Co., Ltd.
9819335 Switching supply delay compensation Feb 26, 16 Nov 14, 17 , Qorvo US, Inc.
9819372 Radio communication device and burst distortion correcting method Aug 16, 16 Nov 14, 17 , Fujitsu Limited
9819373 Systems and methods for increasing the effectiveness of digital pre-distortion in electronic communications Nov 28, 16 Nov 14, 17 , Redline Communications Inc.
9819409 Integrated circuit chip for receiver collecting signals from satellites Oct 16, 15 Nov 14, 17 , Rafael microelectronics, Inc.

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Recent Publications

Not Available
Publication #TitleFiling DatePub DatePatent Owner
2017/0329,359 Low Voltage Tube Circuits May 20, 16 Nov 16, 17 , Not available
2017/0331,374 A MULTIPLE OUTPUT BOOST DC-DC POWER CONVERTER Sep 25, 15 Nov 16, 17 , Not available
2017/0331,432 AMPLIFYING CIRCUIT Jul 24, 17 Nov 16, 17 , SHENZHEN GOODIX TECHNOLOGY CO., INC.
2017/0331,433 ENVELOPE TRACKING POWER MANAGEMENT CIRCUIT Apr 05, 17 Nov 16, 17 , Not available
2017/0331,434 CASCODE SWITCH FOR AMPLIFIER Jun 07, 17 Nov 16, 17 , Not available
2017/0331,435 RADIO APPARATUS AND ABNORMALITY DETECTING METHOD Apr 25, 17 Nov 16, 17 , Fujitsu Limited
2017/0331,436 POWER AMPLIFIER WITH BIAS ADJUSTMENT CIRCUIT May 30, 17 Nov 16, 17 , Not available
2017/0331,437 POWER AMPLIFYING RADIATOR (PAR) Jul 31, 17 Nov 16, 17 , Not available
2017/0331,438 METHOD AND APPARATUS FOR CHANGING THE GAIN OF A RADIO FREQUENCY SIGNAL Aug 03, 17 Nov 16, 17 , Not available
2017/0331,439 TRANSMISSION MODULE, ARRAY ANTENNA DEVICE INCLUDING TRANSMISSION MODULE, AND TRANSMISSION DEVICE INCLUDING TRANSMISSION MODULE Jan 28, 16 Nov 16, 17 , Mitsubishi Electric Corporation
2017/0331,440 TRANS-IMPEDANCE AMPLIFIER WITH INCREASED DYNAMIC RANGE May 13, 16 Nov 16, 17 , Not available
2017/0331,441 OUTPUT CIRCUIT Mar 23, 17 Nov 16, 17 , Not available
2017/0331,454 CIRCUIT FOR SUPPRESSING SIGNALS ADJACENT TO A PASSBAND May 11, 17 Nov 16, 17 , Not available
2017/0322,240 DEVICE FOR MEASURING THE CURRENT FLOWING IN AN INDUCTIVE LOAD Dec 07, 16 Nov 09, 17 STMICROELECTRONICS S.R.L.,
2017/0322,269 SWITCHING AMPLIFIRER AND METHOD FOR OPERATING SAME Oct 27, 15 Nov 09, 17 GENERAL ELECTRIC COMPANY,
2017/0324,136 DIRECTIONAL COUPLERS AND DEVICES INCLUDING SAME Jul 27, 17 Nov 09, 17 ,
2017/0324,321 LOAD ADAPTABLE BOOST DC-DC POWER CONVERTER May 04, 17 Nov 09, 17 MERUS AUDIO APS,
2017/0324,380 POWER CONTROL METHOD, DEVICE AND COMMUNICATION TERMINAL FOR IMPROVING POWER AMPLIFIER SWITCH SPECTRUM Nov 20, 15 Nov 09, 17 BEIJING VANCHIP TECHNOLOGIES CO., LTD.,
2017/0324,381 TRANSFORMER, POWER MATCHING NETWORK AND DIGITAL POWER AMPLIFIER Jul 27, 17 Nov 09, 17 ,
2017/0324,382 SELF-OSCILLATING AMPLIFIER WITH HIGH ORDER LOOP FILTER Nov 27, 15 Nov 09, 17 ICEPOWER A/S,

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Patents Issued To Date - By Filing Year

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