219627 ⎘
Indexing scheme relating to amplifiers A measuring circuit being coupled to the output of an amplifier
HEARING DEVICE COMPRISING AN AMPLIFIER SYSTEM FOR MINIMIZING VARIATION IN AN ACOUSTICAL SIGNAL CAUSED BY VARIATION IN GAIN OF AN AMPLIFIER
#2DIFFERENTIAL AMPLIFIER CIRCUIT
#3Dynamically biased power amplification
#4Hearing device comprising an amplifier system for minimizing variation in an acoustical signal caused by variation in gain of an amplifier
#5RADIO FREQUENCY POWER AMPLIFIER
#6Dynamically biased power amplification
#7Hearing device comprising an amplifier system for minimizing variation in an acoustical signal caused by variation in gain of an amplifier
#8Power amplifier evaluation method and measurement system
#9Apparatus and method for measuring speaker transducer impedance versus frequency with ultralow inaudible signal
#10Hearing device comprising an amplifier system for minimizing variation in an acoustical signal caused by variation in gain of an amplifier
#11Test and measurement instrument having overpulsed power supply and controlled slew rate
#12Apparatus and method for assisting envelope tracking with transient response in supply voltage for power amplifier
#13Amplifier, circuit for trimming a bias voltage, method for amplifying an input signal and method for trimming a bias voltage
#14High-efficiency power amplifier system for wireless power transmitters
#15Amplifying device comprising a compensation circuit
#16Dynamically biased power amplification
#17Electronic amplification device, measurement apparatus and associated measurement method
#18Adjustable load line power amplifier circuits and methods
#19Capacitive loading mode measurement circuit with compensation of measurement errors due to parasitic sensor impedances
#20Sensing circuit, corresponding amplifier, apparatus and method
#21Method for load measurement in switching amplifiers, corresponding device and amplifier
#22Wireless device with a multi-turn directional coupler
#23Class D audio amplifier and method for reading a current supplied by the amplifier
#24Amplifier system, controller of main amplifier and associated control method
#25Speaker driver
#26Power controllable wireless communication device
#27Integrated directional coupler within an RF matching network
#28Digital amplitude modulation device and digital amplitude modulation control method
#29Power amplifier device with controlled envelope tracking modulator and adapted static voltage
#30Balanced differential transimpedance amplifier with single ended input and balancing method
#31Power adjustment method, computer-readable recording medium and power adjustment apparatus
#32Broadband power amplifier having high efficiency
#33Amplifier circuit with improved accuracy
#34Microwave power amplification apparatus and method thereof
#35AMPLIFICATION APPARATUS, ANTI-VIBRATION APPARATUS, LITHOGRAPHY APPARATUS, AND ARTICLE MANUFACTURING METHOD
#36Wireless communication device
#37Differential amplifier design as the preamp of DMM
#38Power detection circuit and RF signal amplification circuit having the same
#39Electronic radio system for power amplification with protection in terms of standing wave rate and associated method of protection
#40Method for compensating signal distortions in composite amplifiers
#41Integrated directional coupler within an RF matching network
#42Reconfigurable input power distribution doherty amplifier with improved efficiency
#43Circuit for optimizing a power management system during varying load conditions
#44Efficiency optimizer of an audio power amplifier for car radio
#45Radio frequency power delivery system
#46Power supply controller for a multi-gain step RF power amplifier
#47Amplifying circuit
#48Wireless transceiver with amplifier bias adjusted based on modulation scheme and transmit power feedback
#49Power amplifier amplitude modulator system and method
#50Apparatus and method for controlling power amplifier
#51RF power amplifier device and wireless communication terminal device
#52Amplification apparatus
#53POWER CIRCUIT AND RADIO COMMUNICATION CIRCUIT USING SAME AND METHOD OF OPERATING A CIRCUIT
#54APPARATUS AND METHOD FOR POWER ADDED EFFICIENCY OPTIMIZATION OF HIGH AMPLIFICATION APPLICATIONS
#55Radio frequency (RF) power amplifier and RF power amplifier apparatus
#56System and method for dynamic drain voltage adjustment to control linearity, output power, and efficiency in RF power amplifiers
#57Distortion compensating apparatus, wireless communicating apparatus, and distortion compensating method
#58Radio frequency (RF) power amplifier and RF power amplifier apparatus
#59Power source and method for controlling operational power
#60DAC based switching power amplifier
#61Method for compensating signal distortions in composite amplifiers
#62Method and system for varying gain exponentially with respect to a control signal
#63Configurable feedback for an amplifier
#64LAYERED MODULATION FOR DIGITAL SIGNALS
#65Signal amplifying apparatus, amplification system, and signal amplification method
#66Apparatus and Method for Detecting Output Power From an Amplifier
#67Power amplifier amplitude modulator system and method
#68TRANSCEIVER SYSTEM THAT ESTIMATES A VOLTAGE STANDING WAVE RATIO
#69Reconfigurable tunable RF power amplifier
#70System and method for power detection in a power amplifier
#71Apparatus and method for power added efficiency optimization of high amplification applications
#72Linear RF amplifier with polar feedback
#73Average power control of wireless transmission having a variable duty cycle
#74Semiconductor integrated circuit and method for adjusting a capacitance value of a phase compensating capacitor
#75System and method for dynamic drain voltage adjustment to control linearity, output power, and efficiency in RF power amplifiers
#76Methods and apparatus to detect impedance at an amplifier output
#77RADIO FREQUENCY POWER DELIVERY SYSTEM
#78Wave detector circuit
#79PROTECTION AND AUTOMATIC RECOVERY CIRCUIT SYSTEM
#80RF power amplifying device and wireless communication terminal device
#81Method for avoiding interference radiation of AM transmitters used in digital transmission
#82Input offset voltage corrector
#83Protected digital audio driver
#84Inverse characteristic measuring apparatus, distortion compensation apparatus, method, program, and recording medium
#85Systems, methods, and apparatuses for linear polar transmitters
#86Integrated implementation of a voltage boost follower and method therefor
#87Enhanced digital predistortion
#88Method and system for varying gain exponentially with respect to a control signal
#89DAC based switching power amplifier
#90Apparatus and method for processing of amplifier linearization signals
#91Cartesian loop transmitter and method of adjusting an output level of such transmitter
#92Digital feedback to improve the sound reproduction of an electro-dynamic loudspeaker
#93Digitally convertible radio
#94Layered modulation for digital signals
#95Method and apparatus to control output power of a digital power amplifier optimized to a headphone and a portable audio player having the same
#96Soft-start circuit and method for power-up of an amplifier circuit
#97Power amplifier and wireless communication device
#98Transmitter control
#99High-frequency power amplifier circuit and electronic part for communication
#100Method of verifying preamplifier circuit functions, and magnetic record regeneration apparatus using the same
#101High-frequency power amplifier circuit and electronic part for communication
#102Coherent averaging for measuring traveling wave tube amplifier nonlinearity