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
11/30/2006	US20060267678 Non-linear circuit, radio communication device, and non-linear amplification method
11/29/2006	EP1727277A1 Power series predistorter and control method thereof
11/29/2006	EP1726091A1 Temperature compensating circuit
11/29/2006	EP1726090A1 A doherty amplifier
11/29/2006	EP1396932B1 Wireless communication apparatus
11/29/2006	CN1871798A Transimpedance amplifier with receive signal strength indicator
11/29/2006	CN1871745A Method and apparatus providing integrated load matching using adaptive power amplifier compensation
11/29/2006	CN1870016A Model building and compensation method of nonlinear system
11/29/2006	CN1287514C Semiconductor devices
11/29/2006	CN1287512C Amplifier circuit
11/28/2006	US7142833 Matching unit
11/28/2006	US7142615 Distortion compensator
11/28/2006	US7142606 Method and apparatus for shared processing a plurality of signals
11/28/2006	US7142254 Self compensating video data amplifier and driver for broadcast data receiver
11/28/2006	US7142059 Amplifier arrangement
11/28/2006	US7142055 Buffer circuit and driver IC
11/28/2006	US7142054 Amplifying signals using a quadrature coupled amplifier
11/28/2006	US7142053 Voltage clamp for improved transient performance of a collector voltage controlled power amplifier
11/28/2006	US7142048 Pop sound reduction circuit and voice output amplification device
11/28/2006	US7142047 Offset cancellation in a switching amplifier
11/28/2006	US7142036 Amplifier compensation techniques for switched capacitor circuits
11/23/2006	WO2006123350A2 Method for implementation and parameter settings of a voltage enhancement circuit for amplifiers as an integrated circuit (ic)
11/23/2006	WO2006123349A1 Method and apparatus for sensing the envelope of high level multi frequency band rf signals
11/23/2006	WO2006122615A1 Method and system for determining the amplitude and/or phase of the output signal for a transmission body depending on the amplitude of the input signal
11/23/2006	WO2006122388A1 Signal processing system for tonal noise robustness
11/23/2006	WO2005086690A3 Mosfet amplifier having feedback controlled transconductance
11/23/2006	US20060262446 Preamplifier circuit and method for a disk drive device
11/23/2006	US20060261896 CMOS amplifiers with frequency compensating capacitors
11/23/2006	US20060261888 Amplifier arrangement
11/23/2006	US20060261887 High efficiency power amplifier
11/23/2006	US20060261884 Amplifier switching control circuit and method for current shunt instrumentation amplifier having extended position and negative input common mode range
11/23/2006	DE102005036100A1 Amplifier arrangement e.g. integrated circuit, for use in e.g. communication technology, has two resistor networks, whose resistances have same nominal values, where resistor networks are connected with two inputs and output of amplifier
11/23/2006	DE10031521B4 Integrierter Schaltkreis mit einem Analogverstärker An integrated circuit comprising an analog amplifier
11/23/2006	CA2824905A1 Method and system for determining the amplitude and/or phase of the output signal for a transmission body depending on the amplitude of the input signal
11/23/2006	CA2596197A1 Method and system for determining the amplitude and/or phase of the output signal for a transmission body depending on the amplitude of the input signal
11/22/2006	EP1724917A1 Feedforward amplifier
11/22/2006	EP1723738A1 Method and system for reducing pop noise of a sound broadcasting instrument
11/22/2006	EP1723725A1 Digital predistortion system and method for linearizing an rf power amplifier with nonlinear gain characteristics and memory effects
11/22/2006	EP1723719A1 Pre-distortion method, measurement arrangement, pre-distorter structure, transmitter, receiver and connecting device
11/22/2006	EP1723718A1 Eer modulator with power amplifier having feedback loop providing soft output impedance
11/22/2006	EP1520341B1 Amplifier circuit
11/22/2006	EP1310039B1 Transmitter including a composite amplifier
11/22/2006	EP1301989B1 Composite amplifier
11/22/2006	EP1247335B1 Difference frequency impedance transformation circuits and methods for providing same in power amplifier systems
11/22/2006	CN1868131A Activation signal output circuit
11/22/2006	CN1868118A Method and apparatus for resetting a buffer amplifier
11/22/2006	CN1868116A Electronic circuit for amplification of a bipolar signal
11/22/2006	CN1868114A 麦克风前置放大器 Microphone Preamplifier
11/22/2006	CN1866731A Power series predistorter and control method thereof
11/22/2006	CN1866730A Linear biasing circuit with adaptability
11/22/2006	CN1866729A 射频功率放大器 RF power amplifier
11/22/2006	CN1866728A Digital amplifier, pulse width modulator thereof and method for reducing pop noise for the same
11/22/2006	CN1286270C CMOS reverse circuit and DC shift detecting circuit
11/21/2006	US7139534 Transmission circuit
11/21/2006	US7139526 Variable high power amplifier with constant overall gain for a satellite communication system
11/21/2006	US7139206 Memory component with improved noise insensitivity
11/21/2006	US7138876 Use of a thick oxide device as a cascode for a thin oxide transconductance device in MOSFET technology and its application to a power amplifier design
11/21/2006	US7138875 Cascoded power amplifier, particularly for use in radio frequency
11/21/2006	US7138874 Two-stage amplifier
11/21/2006	US7138871 MMIC distributed amplifier gate control using active bias
11/21/2006	US7138867 Balanced variable gain amplifier capable of achieving performance by low source voltage
11/21/2006	US7138863 Gain control of a power amplifier
11/21/2006	US7138859 Signal processing device and class D amplifier that can reduce radiation noise even if the number of channels of a digital audio signal inputted thereto increases
11/16/2006	WO2006119786A1 Method for stabilization of dc-potential at the output of a preamplifier and amplifier circuit
11/16/2006	WO2006019606A3 Auxiliary transistor gate bias control system and method
11/16/2006	US20060255857 Power amplifier
11/16/2006	US20060255855 Offset adjusting circuit and operational amplifier circuit
11/16/2006	DE102005020803A1 Load current determining circuit arrangement for semiconductor switch, has deactivation circuit to temporarily deactivate offset compensation arrangement, which is coupled to input of amplifier, for period after level change of signals
11/15/2006	EP1722484A2 Mobile communication apparatus
11/15/2006	EP1721386A1 Differential stage voltage offset trim circuitry
11/15/2006	CN2838144Y Circuit against bad audio quality resulted from dynamic distortion of power amplifier IC
11/15/2006	CN1864337A Power saving in a transmitter
11/15/2006	CN1864324A 功率转换系统 Power conversion system
11/15/2006	CN1864322A Adaptive predistortion for a transmit system
11/15/2006	CN1864116A Method and apparatus for compensating for temperature drift in semiconductor processes and circuitry
11/15/2006	CN1862952A High frequency power amplifier, transmitter and mobile communication terminal using the power amplifier
11/15/2006	CN1862951A Method for regulating linearity of multi-stage power amplifier
11/15/2006	CN1862950A Shock-wave noise preventing circuit
11/15/2006	CN1285169C Predistortion digital linearizing circuit and gain control method
11/14/2006	US7136774 Sense amplifier thermal correction scheme
11/14/2006	US7136628 Adaptive digital predistortion method and apparatus for wireless transmitter
11/14/2006	US7135930 Switched supply for operational amplifier
11/14/2006	US7135928 Method for transconductance linearization for DC-coupled applications
11/14/2006	US7135927 Ultra fast, low noise operational amplifier with dynamic biasing
11/14/2006	US7135923 Differential amplifier
11/14/2006	US7135922 Power supply rejection for pulse width modulated amplifiers and automatic gain control
11/14/2006	US7135919 Power amplifier with switchable load
11/14/2006	US7135916 Digitally adjustable amplifier for integrated circuit
11/14/2006	US7135912 Methods and systems for decoupling the stabilization of two loops
11/14/2006	US7135893 Comparator circuit
11/14/2006	US7135376 Resistance dividing circuit and manufacturing method thereof
11/14/2006	CA2344263C In-line, unbalanced amplifier, pre-distortion circuit
11/14/2006	CA2298927C Aparatus and method for reducing oscillator frequency pulling during am modulation
11/14/2006	CA2291863C A linear amplifier arrangement
11/13/2006	CA2545984A1 Filtering and boosting a signal from a drive circuit
11/09/2006	WO2006118147A1 Polar coordinate modulation circuit, polar coordinate modulation method, integrated circuit, and radio transmitting apparatus
11/09/2006	WO2006118015A1 Polar coordinate modulating circuit, integrated circuit and radio apparatus
11/09/2006	US20060250825 Hybrid switched mode/linear power amplifier power supply for use in polar transmitter
11/09/2006	US20060250187 Distributed circular geometry power amplifier architecture
11/09/2006	US20060250185 Linear amplifier

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