H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements

Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272)
11/2006
11/09/2006	US20060250184 SiGe differential cascode amplifier with miller effect resonator
11/09/2006	DE10243157B4 Operationsverstärkerschaltung zur Realisierung von Extremwertfunktionen Operational amplifier circuit for realizing extreme value functions
11/09/2006	DE102005020319A1 Amplifier arrangement for global system for mobile communications (GSM) mobile phones has activating/deactivating unit that supplies input control signals to terminals of transistors to control transistors
11/08/2006	EP1719251A1 Control of a power amplifier for reducing power consumption in a transceiver
11/08/2006	EP1719250A1 Load insensitive power amplifier
11/08/2006	EP1719246A1 Bipolar differential input stage with input bias current cancellation circuit
11/08/2006	EP1719244A1 Dynamically biased amplifier
11/08/2006	EP1719243A2 Radio frequency low noise amplifier with automatic gain control
11/08/2006	EP1400010B1 Rf transmitter employing linear and non-linear pre-correctors
11/08/2006	CN1860679A Amplifier, information communication apparatus and amplification method
11/08/2006	CN1860678A Predistortor for use in wireless transmitter
11/08/2006	CN1858992A High stable amplifying circuit
11/08/2006	CN1858991A Power amplifier
11/08/2006	CN1284298C Power amplifier circuit
11/08/2006	CN1284297C Bias voltage forming circuit, amplifying circuit, streamline type AD adaptor
11/08/2006	CN1284238C Arrangement and method for impedance matching
11/08/2006	CN1284237C Input protection circuit
11/07/2006	US7133791 Two-mean level-crossing time interval estimation method
11/07/2006	US7133705 Portable power amplifier
11/07/2006	US7133655 Amplifiers and amplifying methods for use in telecommunications devices
11/07/2006	US7133649 Negative feedback amplifier for transmitter, transmitter, and method of correcting error in the negative feedback amplifier
11/07/2006	US7133644 Digital baseband system and process for compensating for analog radio transmitter impairments
11/07/2006	US7133466 Amplifying apparatus
11/07/2006	US7132893 Selectable gain amplifier
11/07/2006	US7132886 Detecting load current in multi-reference amplifiers
11/07/2006	US7132885 Low phase shift implementation of the baseband circuitry of a Cartesian feedback loop
11/07/2006	US7132883 Chopper chopper-stabilized instrumentation and operational amplifiers
11/07/2006	US7132882 Amplifier having multiple offset-compensation paths and related systems and methods
11/02/2006	WO2006114792A1 Transformer-capacitor enhancement circuitry for power amplifiers
11/02/2006	WO2006065462B1 A transmitter, a transceiver and a method of controlling a transmit power therefor
11/02/2006	WO2005050829A3 Overcurrent protection in amplifier topologies employing dc isolation
11/02/2006	US20060246856 Transmitter apparatus
11/02/2006	US20060245517 Amplifier apparatus
11/02/2006	US20060244648 Radio frequency digital-to-analog converter
11/02/2006	US20060244538 Fet amplifier, pulse modulation module, and radar device
11/02/2006	US20060244533 Sliding bias circuit for enabling dynamic control of quiescent current in a linear power amplifier
11/02/2006	US20060244529 Input structure for a power amplifier and associated methods
11/02/2006	US20060244527 Amplifying circuit, noise reducing apparatus and power converting apparatus
11/02/2006	US20060244526 High bandwidth resistor
11/02/2006	US20060244525 Circuit and method of establishing dc bias levels in an rf power amplifier
11/02/2006	US20060244524 Power amplifier with automatic switching function
11/02/2006	US20060244523 Power control and modulation of switched-mode power amplifiers with one or more stages
11/02/2006	US20060244521 Chopper amplifier circuit apparatus operable at low voltage utilizing switched operational amplifier
11/02/2006	US20060244520 Self zeroing for critical, continuous-time applications
11/02/2006	EP1717951A1 Gain control for a transmitter with a cartesian loop with digital processing
11/02/2006	EP1717949A1 Method and apparatus for reducing nonlinear distortions in generating a high frequency signal
11/02/2006	EP1716723A1 Output stage for a hearing aid and method of driving output stage
11/02/2006	EP1716637A1 Load-invariant amplifier
11/02/2006	EP1716636A1 Electrical apparatus and cooling system
11/02/2006	EP1716635A1 Power amplifier pre-distorter training
11/02/2006	EP1384286B9 Inverted-f ferroelectric antenna
11/02/2006	EP0998823B1 Adaptive digital predistortion apparatus for linearizing a power amplifier for digital broadcasting
11/02/2006	EP0996996B1 A high speed and high gain operational amplifier
11/01/2006	CN2834016Y Circuit device against functional degradation of electronic device or appliance
11/01/2006	CN1855703A Digital analog circuit, digital driver and display device
11/01/2006	CN1855701A Differential amplifier and data driver for display
11/01/2006	CN1855700A Differential amplifier, data driver and display
11/01/2006	CN1855699A Output circuit for amplifying and outputting the input signals
11/01/2006	CN1855698A A doherty amplifier and signal processing method thereof
11/01/2006	CN1855697A Radio frequency power amplifier
11/01/2006	CN1854741A Multi-band amplifier for test and measurement instruments
10/2006
10/31/2006	US7130346 Method and apparatus having a digital PWM signal generator with integral noise shaping
10/31/2006	US7129804 Reflection loss suppression circuit
10/31/2006	US7129790 Phase-locked loop circuit
10/31/2006	US7129787 Systems and methods for ramping power amplifier output power
10/31/2006	US7129786 Bias circuit for smart power amplifier
10/31/2006	US7129782 Fully differential amplifier with start up circuit
10/31/2006	US7129779 Semiconductor device with floating block
10/31/2006	US7129778 Digital cross cancellation system
10/31/2006	US7129777 Digital feedback linearizing apparatus to linearize power amplifier and method used by the apparatus
10/31/2006	US7129776 Bias voltage generator circuit
10/26/2006	WO2006113234A2 Adaptive predistortion linearized amplifier system employing selective sampling
10/26/2006	WO2006112669A1 Temperature compensation bias circuit for the darlington amplifier
10/26/2006	WO2006111631A1 Electric signal amplifier for ultrasound applications
10/26/2006	WO2006111186A1 An adaptive protection circuit for a power amplifier
10/26/2006	WO2005078601A3 Apparatus and method for isolating noise effects in a signal
10/26/2006	US20060241407 Methods, systems, and associated implantable devices for detecting radiation in patients undergoing treatment for cancer
10/26/2006	US20060240788 Transmission output control circuit, and wireless device using the same
10/26/2006	US20060240786 Method and system for broadband predistortion linearization
10/26/2006	US20060238269 Reflection loss suppression circuit
10/26/2006	US20060238254 Input system for a variable gain amplifier having class-AB transconductance stages
10/26/2006	US20060238247 Circuit for preventing output of pop noise
10/26/2006	US20060238245 RF amplifier employing active load linearization
10/26/2006	US20060238243 Differential amplifier, data driver and display
10/26/2006	US20060238242 Differential amplifier and data driver for display
10/26/2006	US20060238241 Monolithic class d amplifier
10/26/2006	US20060238221 Circuit having source follower and semiconductor device having the circuit
10/26/2006	DE102005017538A1 Anordnung und Verfahren zur Temperaturkompensation eines Widerstands Apparatus and method for temperature compensation for a resistance
10/25/2006	EP1715578A2 Predistorsion control for power reduction
10/25/2006	EP1714385A1 Digital microphone
10/25/2006	EP1714384A2 Adaptive bias current circuit and method for amplifiers
10/25/2006	EP1714383A1 Methods and systems for signal amplification through envelope removal and restoration
10/25/2006	EP1714382A1 Cascode cmos rf power amplifier with isolated transistors
10/25/2006	EP1714381A1 Power amplifier with stabilising network
10/25/2006	EP1714380A2 Low power consumption adaptive power amplifier related application
10/25/2006	EP1714379A1 Programmable radio transceiver
10/25/2006	EP1310040B1 Circuit configuration for identifying a faulty state
10/25/2006	EP1224732B1 Compensation circuit and method for a power transistor
10/25/2006	CN1853351A Amplifier circuit and amplifying method
10/25/2006	CN1853343A 放大器 Amplifier

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