Patents
Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
12/2006
12/27/2006CN1886891A Method for aligning feed forward loops
12/27/2006CN1292610C 射频功率放大器 RF power amplifier
12/27/2006CN1292542C Small-amplitude differential interface circuit
12/26/2006US7155182 Varactor with extended tuning range
12/26/2006US7155020 Audio circuitry for dynamics reduction
12/26/2006US7154340 Circuit for increasing the unity gain crossover frequency of an amplifier element
12/26/2006US7154339 RF power amplifier
12/26/2006US7154336 High-frequency power amplifier
12/26/2006US7154335 Variable gain amplifier with direct current offset correction
12/26/2006US7154334 Common mode feedback circuit for fully differential two-stage operational amplifiers
12/26/2006US7154333 Amplifier for inductive loads
12/26/2006US7154332 Differential amplifier, data driver and display device
12/26/2006US7154331 Adapting operational amplifier frequency response respective to closed loop gain
12/21/2006WO2006135584A1 Doherty amplifier configuration for a collector controlled power amplifier
12/21/2006WO2006134214A1 A power amplifier of a transmitter
12/21/2006WO2006133775A1 Low-loss electrical component with an amplifier
12/21/2006WO2006088605A3 Method and apparatus for an improved power amplifier
12/21/2006WO2006088604A3 Method and apparatus for an improved power amplifier
12/21/2006US20060285717 Audio Device Heat Transferring
12/21/2006US20060284685 Power amplifier of a transmitter
12/21/2006US20060284684 Temperature compensated voltage regulator integrated with MMIC's
12/21/2006US20060284683 Electro-optical device, driving method, and electronic apparatus
12/21/2006US20060284680 Amplifier arrangement and amplifying method
12/21/2006US20060284679 Integrated circuit having a low power, gain-enhanced, low noise amplifying circuit
12/21/2006US20060284678 Flip around switched capacitor amplifier
12/21/2006US20060284677 Switching amplifier and control method thereof
12/21/2006US20060284676 Circuit for changing a frequency
12/21/2006US20060284673 Amplifier having half-wave tracking power rails
12/21/2006US20060284672 Control circuit and method for a switching amplifier
12/21/2006DE10314615B4 Verstärker mit verringertem Leistungsverbrauch Amplifier with reduced power consumption
12/20/2006EP1734653A1 High efficiency power amplifier
12/20/2006EP1423928B1 Photoreceiver assembly for high-powered lasers
12/20/2006EP1116324B1 Differential amplifier with gain linearization through transconductance compensation
12/20/2006CN1883111A Amplifier provided with a regulation system controlled by the output stage
12/20/2006CN1882127A Multi-mode digital linearization device and method
12/20/2006CN1881788A Variable gain amplifier circuit and DC offset correction method and radio receiving device
12/20/2006CN1881786A A power multiplier system and method
12/20/2006CN1291489C Power amplifier with radiator
12/19/2006US7151913 Electromagnetic wave transmitter, receiver and transceiver systems, methods and articles of manufacture
12/19/2006US7151708 Semiconductor integrated circuit and operational amplifier
12/19/2006US7151412 Sliding cascode circuit
12/19/2006US7151411 Amplifier system and method
12/19/2006US7151410 Class AB enhanced transconductance source follower
12/19/2006US7151409 Programmable low noise amplifier and method
12/19/2006US7151408 Method for generating a radio-frequency alternating voltage and an associated radio-frequency power amplifier
12/19/2006US7151407 Switched-mode power amplifier using lumped element impedance inverter for parallel combining
12/19/2006US7151406 Compensation of nonlinearity introduced by dead time in switching output stage
12/19/2006US7151404 Current controlled pulse width modulation circuit and class-D amplifier comprising the same
12/19/2006US7151403 Adaptive self-calibration method and apparatus
12/19/2006US7151363 High PSRR, fast settle time voltage regulator
12/14/2006WO2006132315A1 Buffer circuit
12/14/2006WO2006132202A1 Audio signal amplifying circuit and electronic device using the same
12/14/2006WO2006131595A1 By-pass arrangement of a low noise amplifier
12/14/2006WO2006115879A3 Amplifier circuit and rf transmitter incorporating the circuit
12/14/2006WO2006016973A3 A feed forward amplifier with multiple cancellation loops capable of reducing intermodulation distortion and receive band noise
12/14/2006US20060282185 Device and method for signal processing
12/14/2006US20060280511 Optical receiver having bias circuit for avalanche photodiode with wide dynamic range
12/14/2006US20060279509 Operational amplifier with constant offset and apparatus comprising such as operational amplifier
12/14/2006US20060279503 Thin-film transistor circuit and a semiconductor display using the same
12/14/2006US20060279370 Reflecting modulator circuit comprising a negative impedance amplifier
12/14/2006US20060279362 Concurrent triple-band gain amplifier for multi-standard coexist communications
12/14/2006US20060279361 Power amplifier having high heat dissipation
12/14/2006US20060279360 Distributed amplifier
12/14/2006US20060279359 High-frequency power amplifier circuit and electronic part for communication
12/14/2006US20060279358 Electronic device and method for manufacturing linear antenna thereof
12/14/2006US20060279357 Low distortion class-D amplifier using sampling of a servo-loop amplifier output
12/14/2006US20060279356 Source driver controlling slew rate
12/14/2006US20060279355 Digital-to-analog converter
12/14/2006US20060279354 Reduction of audible artifacts in an audio system
12/14/2006US20060278813 Output amplifier for solid-state imaging device
12/14/2006DE112004001995T5 Techniken zum Verringern der Treiberimpedanz und zum Ausbilden eines verringerten DC-Offsets Techniques for reducing the driving impedance and for forming a reduced DC offset
12/14/2006DE102005025677A1 Reception booster for television receiver to receive television signals, has varactor diode, whose capacitance is adjusted and determining frequency, arranged within semiconductor body
12/13/2006EP1732212A1 Output signal converter for tube amplifiers
12/13/2006EP1732211A1 Distributed amplifier
12/13/2006EP1732210A1 Pilot signal detecting circuit, and semiconductor integrated circuit incorporating that circuit
12/13/2006EP1732209A1 Distortion cancellation in a transimpedance amplifier circuit
12/13/2006EP1543617B1 Analog load driver
12/13/2006CN2847693Y Carrier cancellation unit circuit for 3G system broad band power amplifying predistortion correcting circuit
12/13/2006CN1879296A Transistor arrangement, integrated circuit and method for operating field effect transistors
12/13/2006CN1879293A Method and apparatus for realizing a low noise amplifier
12/13/2006CN1879292A Television switch module
12/13/2006CN1879070A Hybrid switched mode/linear power amplifier power supply for use in polar transmitter
12/13/2006CN1878007A Method and system capable of implementing radio frequency predistortion
12/13/2006CN1877987A Power series type predistorter for multi-frequency bands operation
12/13/2006CN1877986A Distortion cancellation in a transimpedance amplifier circuit
12/13/2006CN1877985A Method and device for self-adaptive regulation of power amplifier offset voltage
12/13/2006CN1290259C Duty ratio detection equipment whose return time is short
12/13/2006CN1290256C Difference amplifier and related comparator
12/13/2006CN1290193C Electric current mirror image circuit and light signal circuit utilizing the same
12/12/2006US7149317 CMOS high impedance circuit
12/12/2006US7148752 Integrated power amplifier module with power sensor
12/12/2006US7148751 Handset radiofrequency front end module in fine pitch quad flat no lead (FQFP-N) package
12/12/2006US7148746 High efficiency amplifier
12/12/2006US7148744 Calibration technique for variable-gain amplifiers
12/12/2006US7148734 Analog level shifter
12/12/2006US7148727 Read-out circuit for infrared detectors
12/12/2006US7148586 Sine wave generation circuit and uninterruptible power supply system using the same
12/12/2006US7148458 Circuit for estimating position and orientation of a mobile object
12/07/2006WO2006129414A1 Comparing circuit
12/07/2006WO2006062941A3 Amplifier system with current-mode servo feedback