Patents
Sitemap › H03 - Basic electronic circuitry › H03F - Amplifiers › 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)
04/2003
04/02/2003EP1297624A1 Dual bridge amplifier
04/02/2003EP1297623A1 Voltage level translation circuits
04/02/2003EP1297622A1 Low noise, low distortion, complementary if amplifier
04/02/2003EP1297621A2 High-frequency amplifier circuit with negative impedance cancellation
04/02/2003EP1195005B1 Device and method for predistorting a transmission signal to be transmitted via a nonlinear transmission path
04/02/2003EP1186097B1 Amplifier circuit
04/02/2003CN1408142A System and method for auto-bias of amplifier
04/02/2003CN1407830A Radio communication frequency signal amplifier and transmitting/receiving device
04/02/2003CN1407829A 射频功率放大器 RF power amplifier
04/02/2003CN1407719A High frequency power amplifer, module of high frequency power amplifer and mobile telephone
04/02/2003CN1407718A Operation amplifer with deviation offset function
04/02/2003CN1407717A Feedforward amplifer and feedward magnifying method
04/02/2003CN1407703A 跟踪电源控制 Tracking Power Control
04/01/2003US6542662 Mode translating waveguide adapter for a quasi-optic grid array
04/01/2003US6542037 Low distortion broadband amplifier using GaAs pHEMT devices
04/01/2003US6542036 Low current amplifier circuit with protection against static electricity
04/01/2003US6542030 Amplifier with stabilization means
04/01/2003US6542024 Circuits and methods for controlling transients during audio device power-down, and systems using the same
04/01/2003US6542007 Inverter circuit
04/01/2003US6541945 Apparatus and method for sharing two or more amplifiers to an array of pass circuits in a regulator circuit
04/01/2003CA2327137C Efficient multimode power amplifier
04/01/2003CA2132519C Linear amplifier control
03/2003
03/27/2003WO2003026333A1 Amplifier power detection circuitry
03/27/2003WO2003026059A1 Tunable filters having variable bandwidth and variable delay
03/27/2003WO2002075920A3 Segmented power amplifier and method of control
03/27/2003WO2002054589A3 Triple class e doherty amplifier topology for high efficiency signal transmitters
03/27/2003WO2002015323A9 Highly integrated single substrate mmw multi-beam sensor
03/27/2003US20030060184 Radio signal receiving device
03/27/2003US20030058960 Predistortion type-linearized power amplification system using digital if technology
03/27/2003US20030058959 Combined digital adaptive pre-distorter and pre-equalizer system for modems in link hopping radio networks
03/27/2003US20030058058 Apparatus for collecting signal measurement data at signal ports of an RF and microwave device-under-test, under different impedance load conditions
03/27/2003US20030058051 Automatic ldmos biasing with long term hot carrier compensation
03/27/2003US20030058047 Differential amplifier circuit used in solid-state image pickup apparatus, and arrangement that avoids influence of variations of integrated circuits in manufacture and the like
03/27/2003US20030058044 Amplifier improvements
03/27/2003US20030058043 Distortion compensation amplifier
03/27/2003US20030058042 Feedforward amplifier, feedforward amplification method
03/27/2003US20030058041 Variable gain amplifier
03/27/2003US20030058040 Pop sound reduction circuit and voice output amplification device
03/27/2003US20030058038 Class D amplifier
03/27/2003US20030058024 Integrated electronic circuit including non-linear devices
03/27/2003US20030057436 Semiconductor device
03/26/2003EP1296447A1 High-frequency amplifier
03/26/2003EP1296446A1 Balanced Mixer using bipolar Transistors
03/26/2003EP1296148A1 An apparatus for collecting signal measurement data at signal ports of an RF and microwave device-under-test
03/26/2003EP1295388A1 Signal modulation
03/26/2003EP1295387A2 Improved multi-carrier receiver for a radio telecommunications network
03/26/2003EP1295356A1 Mode translating waveguide adapter for a quasi-optic grid array
03/26/2003EP0910895B1 Current feedback differential amplifier clamp
03/26/2003CN1406410A Device for linearising a high-frequency amplifier
03/26/2003CN1405976A Feed-forward type and self-adaptive predistortion type distortion compensation amplifying apparatus
03/26/2003CN1405975A Constant-voltage circuit and infrared telecontrol veceiver using said constant-voltage circuit
03/25/2003US6538793 Electronically tunable and modulatable quasi-optic grid oscillator
03/25/2003US6538514 Compensation method in a class-G amplifier output stage
03/25/2003US6538511 Operational amplifier including a right-half plane zero reduction circuit and related method
03/25/2003US6538509 Linearizer for a power amplifier
03/25/2003US6538507 Automatic gain control circuit with high linearity and monotonically correlated offset voltage
03/25/2003US6538505 Distortion reduction technique for inductive boost amplifier
03/25/2003US6538504 Switching amplifier crossover distortion reduction technique
03/25/2003US6538501 Radio frequency amplifier and tuner
03/25/2003US6538490 Offset compensation circuit and offset compensation method
03/25/2003US6538477 Input buffer for analog-to-digital convertor
03/25/2003CA2154490C Closed loop power controller
03/20/2003WO2003023954A1 Switchable operational amplifier circuit
03/20/2003WO2003023953A1 Toi and power compression bias network
03/20/2003WO2003023952A1 Gain circuit including ndr and method
03/20/2003US20030054778 Amplifier power detection circuitry
03/20/2003US20030053552 Distortion compensator
03/20/2003US20030052750 Tunable filters having variable bandwidth and variable delay
03/20/2003US20030052739 Method and apparatus for a multi-pole bandwidth enhancement technique for wideband amplification
03/20/2003US20030052736 Radio frequency amplifier and television tuner
03/20/2003US20030052734 Feed forward amplification apparatus for compensating non-linear distortion
03/20/2003US20030052733 Signal processing circuit for floating signal sources using positive feedback
03/20/2003US20030052732 Signal processing circuit for floating signal sources using positive feedback
03/20/2003US20030052731 Linear voltage subtractor/adder circuit and MOS differential amplifier circuit therefor
03/20/2003US20030052727 High linearity, high gain mixer circuit
03/20/2003US20030052345 Semiconductor apparatus capable of preventing occurrence of multiple reflection, driving method, and setting method thereof
03/20/2003DE10035065C2 Leistungsverstärkerschaltung mit Versorgungseinstellung zum Steuern des Spitzen-Mittelwert-Leistungsverhältnisses des verstärkten Signals und Verfahren zum Verstärken A power amplifier circuit with supply setting for controlling the peak-to-average power ratio of the amplified signal and method for enhancing
03/19/2003WO2002025808A1 Nonlinear distortion compensation power amplifier
03/19/2003EP1293047A1 A radio frequency (rf) transceiver
03/19/2003EP1293040A2 Radio frequency device with fast charging of an input capacitance
03/19/2003EP1293039A1 High linearity multicarrier rf amplifier
03/19/2003EP1293038A1 Pwm limiter
03/19/2003EP1293037A1 Silent start
03/19/2003EP1293035A2 Level shifter for switching power amplifier
03/19/2003EP1293011A1 Techniques for enhancing gain in a quasi-optic grid array
03/19/2003EP0937334B1 Arrangement for protecting the output transistors in a power amplifier
03/19/2003CN1404651A High-frequency amplifier circuit with negative impedance cancellation
03/19/2003CN1404217A Amplifier
03/19/2003CA2421773A1 Nonlinear distortion compensation power amplifier
03/18/2003US6535724 Receiver portion of a telephone
03/18/2003US6535399 Tracking power supply controlling
03/18/2003US6535067 Power saturation control of class C bipolar amplifiers
03/18/2003US6535066 Dynamic RF amplifier bias control for digital wireless communications devices
03/18/2003US6535063 Drive method for a cross-connected class AB output stage with shared base current in pre-driver
03/18/2003US6535062 Low noise, low distortion, complementary IF amplifier
03/18/2003US6535059 Amplifier circuit
03/18/2003US6535050 Hybrid power MOSFET for high current-carrying capacity
03/18/2003US6535039 Low power circuit with proper slew rate by automatic adjustment of bias current
03/18/2003CA2324846C System and method for producing an amplified signal
03/18/2003CA2271041C Pulse modulation power amplifier with enhanced cascade control method
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