219123 ⎘
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 transistor amplifiers with control of the supply voltage or current; Continuous control by using a signal derived from the output signal, e.g. bootstrapping the voltage supply
DC offset canceller
#302Inverter/power amplifier with capacitive energy transfer and related techniques
#303Harmonics cancellation circuit for a power amplifier
#304Power amplifier
#305Circuits and methods for power amplification with extended high efficiency
#306Radio frequency signal amplifying system
#307Parallel correction amplifier
#308Power control
#309Adaptive adjustment of power splitter
#310Pre-distortion based power control
#311Method of reducing power dissipation in a switching amplifier and circuit implementing such method
#312Reconfigurable load modulation amplifier
#313RF power transmission, modulation, and amplification, including direct cartesian 2-branch embodiments
#314Controller and a method for controlling a process variable and a power supply circuit comprising a power supply and a controller
#315Class AB signal generation apparatus
#316Fiber-optic node with forward data content driven power consumption
#317Pilot tone for amplifier bias point
#318Peak-to-average ratio detector
#319Power amplifier open loop current clamp
#320DISTORTION COMPENSATING APPARATUS AND DISTORTION COMPENSATION METHOD
#321Time and amplitude alignment in envelope tracking amplification stage
#322Dynamic amplifier supply
#323Control loop for amplification stage
#324Method of power amplifier calibration
#325High speed power supply system
#326Semiconductor integrated circuit device and high-frequency power amplifier module
#327Radio frequency power amplifier circuit and method
#328Multiple input single output device with vector signal and bias signal inputs
#329Self setting power supply using negative output impedance
#330Voltage adjusting circuit for amplifier circuit and method thereof
#331Circuit, transceiver and mobile communication device
#332High speed power supply system
#333Systems, and methods of RF power transmission, modulation, and amplification, including embodiments for output stage protection
#334Adaptive rail power amplifier technology
#335Feedback control and coherency of multiple power supplies in radio frequency power delivery systems for pulsed mode schemes in thin film processing
#336DEVICE AND METHOD FOR PRE-DISTORTING AND AMPLIFYING A SIGNAL BASED ON AN ERROR ATTRIBUTE
#337Self-powered comparator
#338Efficient power amplifier
#339Transimpedance amplifier, semiconductor device, and optical module to include an adding circuit for adding first and second current variation
#340Parallel correction amplifier
#341Power amplification based on phase angle controlled reference signal and amplitude control signal
#342Power control
#343Power amplifier with dynamically added supply voltages
#344Single die power amplifier with closed loop power control
#345Amplifier circuit, control method for supplying power to amplifier circuit, and transmission device
#346Power amplifier system with a current bias signal path
#347Gate-based output power level control power amplifier
#348High efficiency variable voltage supply
#349Control modules
#350Apparatus and method for a tunable multi-mode multi-band power amplifier module
#351Efficient amplification stage
#352Current control circuit, class AB operational amplifier system and current control method
#353Method of power amplifier calibration
#354Apparatus and method for controlling power amplifier
#355Amplification apparatus
#356Self-powered comparator
#357Control loop for amplification stage
#358Amplifying apparatus
#359Efficient power amplifier
#360Digital predistorter for variable supply amplifier
#361High efficiency microwave amplifier
#362Power amplifier controller with polar transmitter
#363High speed power supply system
#364System and method for dynamic drain voltage adjustment to control linearity, output power, and efficiency in RF power amplifiers
#365Control modules
#366Signal amplification
#367DYNAMIC BIAS FOR RF POWER AMPLIFIERS
#368System and method of using residual voltage from a prior operation to establish a bias voltage for a subsequent operation
#369Systems, methods, and apparatuses for linear envelope elimination and restoration transmitters
#370Low-noise block
#371Power save mode for audio interface drive amplifier
#372Efficient power amplifier
#373Power amplifier controller with polar transmitter
#374Mobile transmitter and transmitting method thereof
#375System and method for dynamic drain voltage adjustment to control linearity, output power, and efficiency in RF power amplifiers
#376Multimode amplifier for operation in linear and saturated modes
#377Power Amplifier Bias Control
#378Current-regulated, bootstrapped-biased, high to low impedance signal-buffer/output-driver for audio electronics
#379Systems, methods, and apparatuses for multi-path orthogonal recursive predistortion
#380Systems, methods, and apparatuses for linear envelope elimination and restoration transmitters
#381FM Power Amplifier With Antenna Power Control
#382High efficiency variable voltage supply
#383RF power transmission, modulation, and amplification, including cartesian 4-branch embodiments
#384Systems and methods of RF power transmission, modulation, and amplification, including cartesian 4-branch embodiments
#385Systems and methods of RF power transmission, modulation, and amplification, including transfer function embodiments
#386Signal processor for use with a power amplifier in a wireless circuit
#387Systems and methods of RF power transmission, modulation, and amplification, including transfer function embodiments
#388Multiple input single output (MISO) amplifier with circuit branch output tracking
#389RF power transmission, modulation, and amplification, including harmonic control embodiments
#390Systems and methods of RF power transmission, modulation, and amplification, including multiple input single output (MISO) amplifier embodiments comprising harmonic control circuitry
#391RF power transmission, modulation, and amplification, including power control of multiple input single output (MISO) amplifiers
#392Systems and methods of RF power transmission, modulation, and amplification, including output stage protection circuitry
#393Systems and methods of RF power transmission, modulation, and amplification, including Cartesian-Polar-Cartesian-Polar (CPCP) embodiments
#394Multiple input single output (MISO) amplifier having multiple transistors whose output voltages substantially equal the amplifier output voltage
#395Power amplification apparatus of a portable terminal
#396Systems and methods of RF power transmission, modulation, and amplification, including waveform distortion compensation embodiments
#397RF power transmission, modulation, and amplification using multiple input single output (MISO) amplifiers to process phase angle and magnitude information
#398Reconfigurable transmitter
#399RF power transmission, modulation, and amplification, including direct cartesian 2-branch embodiments
#400Systems and methods of RF power transmission, modulation, and amplification, including a Cartesian-Polar-Cartesian-Polar (CPCP) embodiment
#401Dual voltage regulator for a supply voltage controlled power amplifier in a closed power control loop
#402Amplifier apparatus
#403Mobile communications terminal having driving voltage control apparatus and method thereof
#404Dynamic bias for RF power amplifiers
#405Dual band power amplifier module for wireless communication devices
#406Phase-locked loop circuit
#407Systems and methods for vector power amplification
#408Systems and methods for vector power amplification
#409Method and apparatus for maintaining constant linearity for a power amplifier over varying load conditions
#410Method and control system for controlling the output power of an RF amplifier system
#411Smart voltage rail reduction audio amplifier
#412Power amplifiers
#413High speed, high resolution amplifier topology
#414High linearity doherty communication amplifier with phase control
#415System and method for allowing a TDMA/CDMA portable transceiver to operate with closed loop power control
#416Bandwidth adaptation in a transmission circuit
#417Digitally modulated polar power amplifier
#418Common mode output voltage biasing in class-D audio amplifiers having selectable differential or dual single-ended operation
#419Biasing for lower Rof LDO pass devices
#420LDO with fast recovery from saturation
#421Bias circuit having reduced power consumption
#422Mitigation of radio-frequency interference at a remote radio head