Patents
Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
07/2008
07/10/2008WO2008021707A3 A wide-band low-noise cmos amplifier
07/10/2008WO2007075863A3 System and method for providing distributed gain
07/10/2008US20080167131 Interactive entertainment electronic system
07/10/2008US20080165168 Differential amplifier and data driver employing the differential amplifier
07/10/2008US20080164949 Wideband linearization and adaptive power management for microwave power amplifiers
07/10/2008US20080164948 Biasing current to speed up current mirror settling time
07/10/2008US20080164947 Semiconductor device
07/10/2008US20080164946 Coupling Net and Mmic Amplifier
07/10/2008US20080164945 Simple operational amplifiers circuit and alternative circuit of latch circuit
07/10/2008US20080164941 Systems and methods for power amplifiers with voltage boosting multi-primary transformers
07/09/2008CN101217282A An A/D converter adopting mixed type dual-layer folding circuit
07/09/2008CN101217280A A successive approximation A/D converter adopting switched-OPAMP
07/09/2008CN101217264A An amplifier gain control circuit of wireless transceiver
07/09/2008CN101217263A A compensatory method and device for DC offset voltage of amplifier
07/09/2008CN101217262A A class D power amplifier and the corresponding input signal modulation method
07/09/2008CN100401633C Amplifier switch
07/08/2008US7397676 Class E amplifier with inductive clamp
07/08/2008US7397310 High-bandwidth high-gain amplifier
07/08/2008US7397309 Bias circuit for a wideband amplifier driven with low voltage
07/08/2008US7397308 Traveling wave amplifier with distributed regenerative feedback between drain-to-drain transmission lines and gate-to-gate transmission lines for enhanced high frequency bandwidth
07/08/2008US7397307 Amplifier arrangement having an adjustable gain, and use thereof
07/08/2008US7397306 High-bandwidth high-gain amplifier
07/08/2008US7397305 High output power amplifier with adjustable voltage transformation ratio of transformer
07/08/2008US7397303 Vacuum tube circuit
07/08/2008US7397302 Variable gain amplifier
07/08/2008US7397248 Amplifier having a regulation system controlled by the output stage
07/08/2008US7396336 Switched resonant ultrasonic power amplifier system
07/03/2008WO2008080008A2 Analog conditioning of bioelectric signals
07/03/2008WO2008078591A1 Current mirror circuit
07/03/2008WO2008078565A1 Power amplifier
07/03/2008WO2008078468A1 Transmitting device and communication device
07/03/2008WO2008054766A3 System and method for pre-charging a current mirror
07/03/2008WO2008026228A8 Differential to single-ended conversion circuit and comparator using the circuit
07/03/2008WO2008023395A8 Buffer device for switched capacity circuit
07/03/2008WO2007059484A3 Linear rf transmitter and method of operation
07/03/2008US20080159756 Configurable post-amplifiers that are capable of being configured to perform either substantially linear or limiting amplification for use in optical receivers
07/03/2008US20080158137 Semiconductor device
07/03/2008US20080157876 Low strain variable frequency amplifier
07/03/2008US20080157875 Method and System for Precise Current Matching in Deep Sub-Micron Technology
07/03/2008US20080157873 Fully differential amplification device
07/03/2008US20080157872 Current switched circuit for switch mode power amplifiers
07/03/2008US20080157871 Predistortion linearization device with adjustable amplitude and shape
07/02/2008EP1940019A1 Linearisation device with pre-distortion with adjustable amplitude and curve
07/02/2008EP1938454A2 Soft-start circuit and method for power-up of an amplifier circuit
07/02/2008EP1938451A1 Device and method for amplifying pulsed rf signals
07/02/2008EP1891731A4 Fast setting, low noise, low offset operational amplifier and method
07/02/2008CN101213755A Transmission circuit and communication device
07/02/2008CN101213740A Temperature-independent amplifier offset trim circuit
07/02/2008CN101213739A Switch amplifier and its modulation method
07/02/2008CN101212205A Voltage fluctuation compensator for audio frequency output amplifier
07/02/2008CN101212204A Power supply device for audio system and the audio system
07/01/2008US7395127 Signal processing apparatus with automatic channel naming and numbering
07/01/2008US7395038 High-efficiency modulating RF amplifier
07/01/2008US7394872 Data receiver and method for receiving data using folded differential voltage sampler
07/01/2008US7394635 Current detection circuit and protection circuit
07/01/2008US7394430 Wireless device reconfigurable radiation desensitivity bracket systems and methods
07/01/2008US7394316 High speed, high current gain voltage buffer and method
07/01/2008US7394315 Gate driver for Class D audio amplifier with adaptive dV/dt control
07/01/2008US7394314 Class-D amplifier with noise-immunity feedback
07/01/2008US7394311 Apparatus and method for reduced sample rate class S RF power amplifier
07/01/2008US7394055 Solid-state image-pickup device with column-line amplifiers and limiter
06/2008
06/26/2008WO2008076822A2 Adaptive bias technique for field effect transistor
06/26/2008WO2008076021A1 Pulse width modulator
06/26/2008WO2008075561A1 Power amplification device
06/26/2008WO2008075430A1 Optical receiver
06/26/2008WO2008075306A1 True current limiting (tcl)
06/26/2008WO2008050259A3 Amplifier circuit
06/26/2008WO2008039503A3 Broadband low noise amplifier
06/26/2008US20080153438 Transmission Device, Transmission Power Control Method, and Radio Communication Device
06/26/2008US20080150639 Power amplification apparatus in communication system
06/26/2008US20080150638 Constant margin cmos biasing circuit
06/26/2008US20080150636 Differential amplifier with a plurality of input pairs
06/26/2008US20080150635 Class-D amplifier
06/26/2008US20080150634 Two-stage amplification using intermediate non-linear square wave
06/26/2008US20080150633 Method and system for reducing am/pm distortion in a polar amplifier
06/26/2008US20080150632 Gigabit ethernet transceiver with analog front end
06/26/2008US20080150630 Matching circuit and dual-band power amplifier
06/26/2008US20080150629 Traveling-wave tube turn-off body energy circuit
06/26/2008US20080150628 Low distortion class-D amplifier
06/25/2008EP1936804A2 Balanced power amplifier with a bypass structure
06/25/2008EP1936803A2 Balanced power amplifier with a bypass structure
06/25/2008EP1936802A1 High performance broadband amplifier
06/25/2008EP1936801A1 Pulse width modulator system
06/25/2008EP1936800A2 Method and system for an all-digital class-D modulator and its saturation protection techniques
06/25/2008EP1936689A1 Deep sub-micron MOS preamplifier with thick-oxide input stage transistor
06/25/2008EP1936357A1 Method of processing an analog sensor signal in a gas sensor arrangement and measured value processing device
06/25/2008EP1935091A2 Systems and methods for transferring single-ended burst signal onto differential lines, especially for use in burst-mode receiver
06/25/2008EP1935089A2 Systems, methods and devices for dual closed loop modulation controller for nonlinear rf amplifier
06/25/2008CN101207376A Message amplifying unit and method for preventing sonic boom
06/25/2008CN101207371A Matching circuit and dual-band power amplifier
06/25/2008CN101207366A High efficiency power amplifier
06/25/2008CN101207365A Gain bootstrap operational amplifier
06/25/2008CN100397282C Current shutdown circuit for active bias circuit having process variation compensation
06/25/2008CN100397279C Current leakage compensator and its compensating method
06/24/2008US7392033 Reducing active mixer flicker noise
06/24/2008US7392027 Automatic gain control device, automatic gain control method, control program for automatic gain control device, radio communication terminal having automatic control device, radio communication system, and radio communication method
06/24/2008US7391404 Thin film transistor circuit and semiconductor display device using the same
06/24/2008US7391269 Amplifying circuit
06/24/2008US7391268 Power amplifying device comprising a stabilizing circuit
06/24/2008US7391266 Serial link output stage differential amplifier and method