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
RE47038 Multichannel power amplifying Jun 08, 16 Sep 11, 18 , Bose Corporation

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Recent Publications

Not Available
Publication #TitleFiling DatePub DatePatent Owner
2018/0262,170 HIGH GAIN RF POWER AMPLIFIER WITH NEGATIVE CAPACITOR May 14, 18 Sep 13, 18 , Not available
2018/0262,374 FINITE IMPULSE RESPONSE ANALOG RECEIVE FILTER WITH AMPLIFIER-BASED DELAY CHAIN Mar 08, 17 Sep 13, 18 , CREDO TECHNOLOGY GROUP LIMITED
2018/0262,162 DOHERTY POWER AMPLIFIERS WITH DIFFERENT OPERATING BIASES Mar 06, 18 Sep 13, 18 , Not available
2018/0262,219 DIGITAL TRANSMITTER Sep 23, 16 Sep 13, 18 , NEC CORPORATION
2018/0262,163 Current Mirror Bias Compensation Circuit Feb 28, 18 Sep 13, 18 , Not available
2018/0262,166 Positive Temperature Coefficient Bias Compensation Circuit Feb 28, 18 Sep 13, 18 , Not available
2018/0262,192 Driver Interface Methods and Apparatus for Switch-Mode Power Converters, Switch-Mode Power Amplifiers, and Other Switch-Based Circuits May 10, 18 Sep 13, 18 , Eridan Communications, Inc.
2018/0262,164 Power Amplifier Self-Heating Compensation Circuit Feb 28, 18 Sep 13, 18 , Not available
2018/0262,171 CIRCUIT FOR AUTOMATICALLY MEASURING GAIN OF BUILT-IN TRANS-IMPEDANCE AMPLIFIER Sep 14, 17 Sep 13, 18 , Not available
2018/0262,173 Integrated Circuit, Circuit Assembly and a Method for its Operation May 11, 18 Sep 13, 18 , Not available
2018/0262,049 POWER TRANSMISSION DEVICE AND NON-CONTACT POWER FEEDING SYSTEM Jul 15, 16 Sep 13, 18 , Not available
2018/0262,172 Active Device Which has a High Breakdown Voltage, is Memory-Less, Traps Even Harmonic Signals and Circuits Used Therewith May 14, 18 Sep 13, 18 , Not available
2018/0262,275 Method And System for A Distributed Optoelectronic Receiver May 11, 18 Sep 13, 18 , Not available
2018/0262,169 TIME GAIN COMPENSATION CIRCUIT IN AN ULTRASOUND RECEIVER May 16, 18 Sep 13, 18 , Not available
2018/0262,822 PORTABLE SPEAKER SYSTEM FOR ELECTRIC STRING INSTRUMENTS May 10, 18 Sep 13, 18 , Not available
2018/0262,168 PREDISTORTION DEVICE May 09, 18 Sep 13, 18 , Not available
2018/0262,165 POWER AMPLIFIER MODULE Mar 12, 18 Sep 13, 18 , Not available
2018/0262,167 SEMICONDUCTOR DEVICE May 10, 18 Sep 13, 18 , Murata Manufacturing Co., Ltd.
2018/0255,643 SURFACE MOUNT DEVICE STACKING FOR REDUCED FORM FACTOR Feb 06, 18 Sep 06, 18 , Not available
2018/0254,746 Stacked PA Power Control Jan 29, 18 Sep 06, 18 , Not available

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