Patents
Sitemap › H03 - Basic electronic circuitry › H03F - Amplifiers › H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
10/2008
10/29/2008CN101295964A Differential feedback amplifying circuit with cross coupling capacitor
10/29/2008CN100429869C Microwave monolithic superwide band amplifier
10/28/2008USRE40550 Method and device for improved class BD amplification having single-terminal alternating-rail dual-sampling topology
10/28/2008USRE40549 Circuitry for a high voltage linear current sense IC
10/28/2008US7444125 Communications signal amplifiers having independent power control and amplitude modulation
10/28/2008US7443246 Constant current biasing circuit for linear power amplifiers
10/28/2008US7443244 Method and apparatus for controlling a power amplifier supply voltage
10/28/2008US7443241 RF variable gain amplifier
10/28/2008US7443240 AM intermediate frequency variable gain amplifier circuit, variable gain amplifier circuit and its semiconductor integrated circuit
10/28/2008US7443239 Differential amplifier, data driver and display device
10/28/2008US7443238 Amplifier stage, operational amplifier and method for amplifying a signal
10/28/2008US7443237 Folded cascode amplifier having improved slew performance
10/28/2008US7443236 CDMA power amplifier design for low and high power modes
10/28/2008US7443235 Audio system and processing method of storing and reproducing digital pulse width modulation signal
10/28/2008US7443234 Differential amplifier, digital-to-analog converter and display device
10/28/2008US7442913 Photocurrent amplifier circuit and optical pick-up device
10/23/2008WO2008127860A1 Metal-oxide-semiconductor circuit designs and methods for operating same
10/23/2008WO2008125817A1 Controlling amplifier input impedance
10/23/2008WO2008125403A1 Device for modulating signals by pulse width with three levels and digital amplifier implementing such a device
10/23/2008US20080261542 Power supply circuit
10/23/2008US20080258958 Signal processing device and method, signal processing program, and recording medium where the program is recorded
10/23/2008US20080258955 Signal processing device and method, signal processing program, and recording medium where the program is recorded
10/23/2008US20080258826 Low Voltage Operational Transconductance Amplifier Circuits
10/23/2008US20080258821 Cmos triple-band rf vga and power amplifier in linear transmitter
10/23/2008US20080258820 Active circuit having improved linearity using mulitiple gated transistor
10/23/2008US20080258819 Active circuit having improved linearity using multiple gated transistor
10/23/2008US20080258816 Low frequency analog circuit and design method thereof
10/23/2008US20080258815 High frequency power amplifier and wireless portable terminal using the same
10/23/2008US20080258814 Variable gain amplifier and method for achieving variable gain amplification with high bandwidth and linearity
10/23/2008US20080258813 Sense Amplifiers Operated Under Hamming Distance Methodology
10/23/2008US20080258812 High Speed Differential Receiver with Rail to Rail Common Mode Operation Having a Symmetrical Differential Output Signal with Low Skew
10/23/2008US20080258811 Distributed class g type amplifier switching method
10/23/2008US20080258810 Method and Apparatus for Optimizing Current Consumption of Amplifiers with Power Control
10/22/2008EP1983659A2 Method and apparatus for dynamic digital pre-distortion in radio transmitters
10/22/2008EP1982411A2 Notch filter for ripple reduction in chopper stabilized amplifiers
10/22/2008EP1293036B1 Demodulation filter
10/22/2008EP1292020B1 Amplifier circuit
10/22/2008CN101291138A Operation amplifier and its flash noise reducing method
10/22/2008CN101291009A Microwave switch system of multiple paths and implementing method
10/22/2008CN101290793A Read-out amplifier operated by hamming distance method
10/22/2008CN101290739A Deviation eliminating device, ic chip and drive ic
10/22/2008CN101290249A Radio-frequency power amplifier temperature detection circuit
10/22/2008CN100428625C Radio frequency band low temperature low noise amplifier
10/21/2008US7439810 Fast bias for power amplifier gating in a TDMA application
10/21/2008US7439809 Radio frequency power amplifier
10/21/2008US7439808 High-frequency power amplifier
10/21/2008US7439807 Method and system for generating a temperature-compensated control signal
10/21/2008US7439805 Enhancement-depletion Darlington device
10/21/2008US7439804 Amplifier with level shifting feedback network
10/21/2008US7439803 Fully differential current-feedback CMOS/bipolar operational amplifier
10/21/2008US7439801 Amplifier circuit with multiple power supplies
10/21/2008US7439786 Power amplification circuits
10/21/2008US7439775 Sense amplifier circuit and sense amplifier-based flip-flop having the same
10/21/2008US7439622 Semiconductor device
10/21/2008US7439481 In-situ power monitor having an extended range to stabilize gain of avalanche photodiodes across temperature variations
10/21/2008US7439480 Regulated current mirror
10/21/2008US7439440 Audio player using sigma-delta pulse-width modulation
10/16/2008WO2008124347A1 Differential amplifier with active post-distortion linearization
10/16/2008WO2008123624A1 Low-noise amplifier
10/16/2008WO2008123438A1 Synthesizer for doherty amplifier
10/16/2008WO2008122506A1 Circuitry and method for reducing second and third-order nonlinearities
10/16/2008WO2008080008A3 Analog conditioning of bioelectric signals
10/16/2008WO2007079396A3 Digital pwm amplifier with simulation-based feedback
10/16/2008US20080253477 Iq-Modulator Pre-Distortion
10/16/2008US20080253260 Photodetection device and optical disk device
10/16/2008US20080252792 Television Switch Module
10/16/2008US20080252573 Transistor Control Circuits and Control Methods, and Active Matrix Display Devices Using the Same
10/16/2008US20080252382 Class-f power amplifier circuit
10/16/2008US20080252381 Transformer Circuit
10/16/2008US20080252380 Power Supply System
10/16/2008US20080252376 Metal-oxide-semiconductor circuit designs and methods for operating same
10/16/2008US20080252375 Voltage-clamping device and operational amplifier and design method thereof
10/16/2008US20080252374 Amplifier and system utilizing the same
10/16/2008US20080252373 Low Flicker Noise Operational Amplifier
10/16/2008US20080252372 Power-MOSFETs with Improved Efficiency for Multi-channel Class-D Audio Amplifiers and Packaging Thereof
10/16/2008US20080252369 Operational amplifier, line driver, and liquid crystal display device
10/16/2008US20080252365 Apparatus and method for tuning center frequency of a filter
10/16/2008DE102007016093A1 Sound production device i.e. guitar amplifier, for e.g. studio, has amplifier circuit exhibiting electrical components arranged on side of soldering strip, and line connections arranged on another side of strip
10/15/2008EP1980017A1 Amplifier circuit
10/15/2008EP1908168A4 Temperature-independent amplifier offset trim circuit
10/15/2008EP1413054B1 Auxiliary circuitry for monolithic microwave integrated circuit
10/15/2008EP1145449B1 Hardware-efficient transceiver with delta-sigma digital-to-analog converter
10/15/2008CN201134919Y Transistor earphone amplifier
10/15/2008CN201134786Y Control circuit for systematical distortion
10/15/2008CN201134596Y Amplified transmission cable of high-resolution digital video and audio signal
10/15/2008CN101288227A Feedback controller for PWM amplifier
10/15/2008CN101288226A Temperature compensated voltage regulator integrated with mmic's
10/15/2008CN101285706A Differential input low-temperature infrared detector weak current amplifier
10/15/2008CN100426664C High-frequency amplifier, feed-forward amplifier and distortion compensation amplifier
10/15/2008CN100426660C Warm back-up and multual-aid system of power amplifier
10/15/2008CN100426659C Multi-level output circuit
10/15/2008CN100426526C Thin-film semiconductor device and producing method thereof
10/14/2008US7437252 Configurable voltage regulator
10/14/2008US7437129 Electric component for communication device and semiconductor device for switching transmission and reception
10/14/2008US7437084 Infrared radiation receiving circuit, electronic device, and infrared radiation receiving method
10/14/2008US7436918 Output stage synchronization
10/14/2008US7436262 Highly linear variable gain amplifier
10/14/2008US7436261 Operational amplifier
10/14/2008US7436260 Controlling the ratio of amplification factors between linear amplifiers
10/14/2008US7436259 Amplification apparatus
1 ... 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 ... 441