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)
10/2012
10/24/2012CN101895258B Circuit for controlling positive amplification coefficients of triode
10/23/2012US8294520 Switchable multiband LNA design
10/23/2012US8294516 Power amplifier pre-distortion
10/23/2012US8294515 Amplifier
10/18/2012WO2012142101A2 Radio frequency (rf) amplifier utilizing a predistortion circuit and related techniques
10/18/2012WO2012141832A1 Apparatuses and methods for analysis of samples through multiple thicknesses with beam-through assist
10/18/2012WO2012109227A3 Group delay calibration method for power amplifier envelope tracking
10/18/2012WO2012083256A3 Apparatus and methods for oscillation suppression
10/18/2012US20120262234 Power amplifier with advanced linearity
10/18/2012US20120262230 Amplifier crosstalk cancellation technique
10/17/2012EP2510617A1 Limiting circuit
10/17/2012EP2510615A1 Low output impedance rf amplifier
10/17/2012CN202495913U Intelligent constant pressure power amplifier
10/17/2012CN202495912U Power amplifier device based on feedforward technology
10/17/2012CN202495876U Negative voltage generating circuit and audio frequency amplifying circuit
10/17/2012CN102742155A Variable class characteristic amplifier
10/17/2012CN102742154A Method for offsetting vmos transistor power amplifier of distortion and temperature drift of diode
10/17/2012CN102739176A Amplifier crosstalk cancellation method and amplifier circuit
10/17/2012CN102739174A Trans-conductance amplifier, resistor, inductor and filter
10/17/2012CN102739173A Transconductance amplifier, resistor, inductor and filter
10/17/2012CN102739172A Differential output stage
10/17/2012CN102739171A Calculation amplifier
10/17/2012CN102739167A Design method for microwave amplifier
10/17/2012CN102735879A Low-noise, high-bandwidth tunnel current preamplifier circuit
10/16/2012US8290751 Multi-gain adaptive linear processing and gated digital system for use in flow cytometry
10/16/2012US8290750 Signal detect for high-speed serial interface
10/16/2012US8290748 Sensor interface with integrated current measurement
10/16/2012US8289076 Amplifying circuit
10/16/2012US8289075 Class-D amplifier
10/16/2012US8289074 Discrete time operational transconductance amplifier for switched capacitor circuits
10/11/2012WO2012139126A1 Systems and methods of rf power transmission, modulation, and amplification
10/11/2012WO2012137290A1 Bandwidth-variable amplifier
10/11/2012US20120256690 Power amplifier circuit with means for tuning wave shape of ask rf signal envelope, and method for implementing the power amplifier circuit
10/11/2012US20120256689 Radiofrequency Emission or Reception Chain with Automatic Impedance Adaptation, and Corresponding Method
10/11/2012US20120256688 Amplifying device and signal processing device
10/11/2012US20120256687 Pre-distortion for a Radio Frequency Power Amplifier
10/11/2012US20120256686 Radio frequency (rf) amplifier utilizing a predistortion circuit and related techniques
10/10/2012EP2509228A1 Communications device with separate I and Q phase power amplification having selective phase and magnitude adjustment and related methods
10/10/2012EP2509216A1 Buffer circuit with high linearity
10/10/2012EP2509215A2 Power amplifier circuit with means for tuning wave shape of ASK RF signal envelope, and method for implementing the power amplifier circuit
10/10/2012EP2507908A1 Pop-up noise reduction in a device
10/10/2012CN202488407U Three-phase rectified synthesized five-output operational amplifier circuit
10/10/2012CN202488406U Highly stable programmable gain amplifier structure
10/10/2012CN1819471B Emission/acceptance device of polarization modulator with alterable predistortion
10/10/2012CN102723919A Transconductance amplifier, resistor, inductor and filter
10/10/2012CN102723918A Transconductance amplifier, resistor, inductor and filter
10/10/2012CN102723917A Power amplifier
10/10/2012CN102723916A High-speed phase splitting circuit with band spreading function
10/10/2012CN102723915A Look-up table digital predistortion method and device applicable to hardware implementation
10/10/2012CN102723914A L-band and S-band ultra-wideband high-power amplitude-limiting low-noise amplifier
10/10/2012CN102723913A Fourth-generation multi-standard fully-compatible mobile radio-frequency front-end broadband low-noise amplifying device
10/10/2012CN102082550B Radio frequency silicon-on-insulator complementary metal oxide semiconductor low-noise amplifier
10/10/2012CN101662262B Class D amplifier control circuit and method
10/10/2012CN101057437B System and method for forward path gain control in a digital predistortion linearized transmitter
10/09/2012US8285520 Hand held data collector and analyzer device
10/09/2012US8284963 Method and apparatus for diminishing mismatch effects between switched signals
10/09/2012US8284953 Circuit and method of reducing pop-up noise in a digital amplifier
10/09/2012US8283992 Communication transceiver having a three-line balun with power amplifier bias
10/09/2012US8283978 CDMA/OFDM compliant wireless communication from a non-linear finite impulse response filter configured with coefficients that are responsive to an input signal magnitude
10/09/2012US8283977 Dynamic radio frequency amplifier distortion adjustment based on linearly interpolating from a sample of pre-distortion coefficients that are selected based on signal magnitude
10/04/2012WO2012135070A2 Frequency-desensitizer for broadband predistortion linearizers
10/04/2012WO2012132377A1 Amplifier and audio device provided with amplifier
10/04/2012WO2012129768A1 A method for pre-distorting and a pre-distorter
10/04/2012WO2012078808A3 Apparatus and methods for capacitive load reduction
10/04/2012US20120249234 Receiver
10/04/2012US20120249233 adaptive digital pre-distortion method and device to enhance the power utility of power amplifiers in wireless digital communication applications
10/04/2012DE112010004479T5 System zum Reduzieren von Verzerrung in einem elektronischen Schaltkreis unter Verwendung von nichtlinearer Rückkopplung System for reducing distortion in an electronic circuit using non-linear feedback
10/04/2012DE102012204945A1 Verstärkerschaltung, Mobilkommunikationsvorrichtung und Verfahren zum Einstellen eines Arbeitspunkts eines Leistungsverstärkers Amplifier circuit, mobile communications device and method for adjusting an operating point of a power amplifier
10/04/2012DE102010012269B4 Differenzverstärker und Verfahren zum Betreiben eines Differenzverstärkers Differential amplifier and method of operating a differential amplifier
10/04/2012DE102007008921B4 Biasschaltung für Leistungsverstärker Bias circuit for power amplifiers
10/04/2012DE102006019888B4 Verstärker mit ESD-Schutz Amplifier with ESD protection
10/03/2012EP2506443A1 Receiver comprising amplifier with Miller effect feedback
10/03/2012EP2506425A1 Source or emitter follower buffer circuit and method
10/03/2012EP2504920A1 Digital charge amplifier and method for converting charge signals into digital signals
10/03/2012EP2504919A1 Parallel correction amplifier
10/03/2012CN202475370U Intelligent monitoring and protecting system of large-power audio frequency amplifier
10/03/2012CN202475369U Large dynamic cascade doherty power amplifier
10/03/2012CN202475368U High-efficiency Doherty power amplifier
10/03/2012CN202471912U Device for detecting fault of amplifier circuit and power amplifier circuit
10/03/2012CN102714498A Efficient active source impedance modification of a power amplifier
10/03/2012CN102714486A Amplifying device and signal processing device
10/03/2012CN102710226A Power amplifying device
10/03/2012CN102710223A Amplifier circuit, mobile communication device and method for adjusting a bias of a power amplifier
10/03/2012CN102710222A Linear signal conditioning driving device for traveling wave tube
10/03/2012CN102710221A Self-adaptive amplifying and filtering system for laser energy measurement of back reverse calorimeter
10/03/2012CN102710220A Feed-forward power amplifier on basis of pre-distortion and Doherty
10/03/2012CN101902204B Power supply method, power source device and base station radio frequency system for power amplification
10/03/2012CN101895698B Integrated circuit with functions of bias and polarization selection
10/03/2012CN101793949B X-nuclear channel broadband pre-amplifier of high-field nuclear magnetic resonance spectrometer
10/03/2012CN101743688B Amplifier circuit and method therefor
10/03/2012CN101675584B Amplifier pre-distortion systems and methods
10/03/2012CN101594157B Distortion compensating apparatus, wireless communication apparatus, and distortion compensating method
10/02/2012US8280695 Method to adapt a template dataset to a target dataset by using curvelet representations
10/02/2012US8280691 Arrangement for evaluating the measured values of a measured-value converter
10/02/2012US8279302 Method for integrating image sensor
10/02/2012US8279008 CMOS millimeter-wave variable-gain low-noise amplifier
10/02/2012US8279000 Radio-frequency amplifier
10/02/2012US8278999 Output buffer circuit capable of enhancing stability
10/02/2012CA2554515C Output stage for a hearing aid and method of driving output stage
09/2012
09/27/2012US20120243580 Quadrature lattice matching network
1 ... 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 ... 303