H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements

Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
10/2002
10/22/2002	US6469543 High speed output buffers using voltage followers
10/22/2002	US6469489 Adaptive array sensor and electrical circuit therefore
10/22/2002	US6468201 Apparatus using PNP bipolar transistor as buffer to drive video signal
10/22/2002	CA2374318C Device and method for predistorting a transmission signal to be transmitted via a nonlinear transmission path
10/17/2002	WO2002082649A1 A cmos circuit with constant output swing and variable time delay for a voltage controlled oscillator
10/17/2002	WO2002082642A2 Dynamic biasing of a transmitter
10/17/2002	WO2002082640A1 Reflection loss suppression circuit
10/17/2002	WO2002082639A1 Low noise amplifiers
10/17/2002	WO2002082638A1 Bias adjustment for power amplifier
10/17/2002	WO2002082637A1 Method and apparatus for increasing the efficiency of a transmitter
10/17/2002	WO2002082636A2 Data receiver gain enhancement
10/17/2002	WO2002082633A2 System and method for current-mode amplitude modulation
10/17/2002	WO2002082545A1 A dual pixel-type array for imaging and motion centroid localization
10/17/2002	WO2002050998A3 Wideband dual amplifier circuits
10/17/2002	US20020151291 Antenna interface unit
10/17/2002	US20020151279 Tunable low noise amplifier
10/17/2002	US20020149535 Tunable antenna matching circuit
10/17/2002	US20020149533 Tunable horn antenna
10/17/2002	US20020149526 Inverted-F ferroelectric antenna
10/17/2002	US20020149448 Low-loss tunable ferro-electric device and method of characterization
10/17/2002	US20020149444 Tunable planar capacitor
10/17/2002	US20020149443 Tunable voltage controlled oscillator
10/17/2002	US20020149439 Tunable isolator
10/17/2002	US20020149434 Tunable voltage-controlled temperature-compensated crystal oscillator
10/17/2002	US20020149432 Voltage to current converter
10/17/2002	US20020149428 Tunable power amplifier matching circuit
10/17/2002	US20020149427 Differential, complementary amplifier
10/17/2002	US20020149426 Class D amplifier
10/17/2002	US20020149425 RF power amplifier stability
10/17/2002	US20020149424 Power amplifying device
10/17/2002	US20020149423 Automatic gain control circuit with high linearity and monotonically correlated offset voltage
10/17/2002	US20020149422 Balanced transformer-less amplifier and an offset detection and correction system therefore
10/17/2002	US20020149419 Low power large signal RF tuned buffer amplifier
10/16/2002	EP1183776B1 Power modulation systems and methods that separately amplify low and high frequency portions of an amplitude waveform
10/16/2002	EP0932933A4 Multi-stage high efficiency linear power amplifier
10/16/2002	EP0830729B1 Micro-power rail-to-rail amplifier
10/15/2002	US6466628 Technique for effectively rendering power amplification and control in wireless communications
10/15/2002	US6466095 Power amplifier
10/15/2002	US6466093 Low voltage low thd CMOS audio (power) amplifier
10/15/2002	US6466092 Distortion compensation method and apparatus
10/15/2002	US6466091 High order multi-path operational amplifier with reduced input referred offset
10/15/2002	US6466090 Digitally programmable continuous-time modules for signal processing
10/15/2002	US6466089 Control circuit for increasing the output inpedance of a transconductor
10/15/2002	US6466087 Method and apparatus providing digital error correction for a class D power stage
10/15/2002	US6466080 Constant current driver circuit
10/15/2002	US6466072 Integrated circuitry for display generation
10/15/2002	US6466064 Frequency multiplier device and frequency multiplier circuit
10/15/2002	US6466062 Operational amplifier output stage
10/15/2002	US6466061 High speed variable output power driver
10/15/2002	US6465789 Signal processing apparatus
10/15/2002	CA2274420C Inexpensive class d amplifier and method
10/10/2002	WO2002080484A1 Method of and apparatus for performing amplitude and phase modulation
10/10/2002	WO2002080357A1 Variable gain low-noise amplifier for a wireless terminal
10/10/2002	WO2002080355A1 High-frequency amplifier
10/10/2002	WO2002080354A1 Amplifier
10/10/2002	WO2002080353A2 Capacitive power driver circuit
10/10/2002	WO2002080352A1 Balanced transformer-less amplifier and an offset detection and correction system therefore
10/10/2002	US20020146998 Single-to-differential conversion circuit outputting DC-balanced differential signal
10/10/2002	US20020146997 Frequency conversion circuit
10/10/2002	US20020146993 Bias adjustment for power amplifier
10/10/2002	US20020146992 Dynamic biasing of a transmitter
10/10/2002	US20020145918 Architecture and scheme for a non-strobed read sequence
10/10/2002	US20020145471 Amplifier that is driven in a complementary manner
10/10/2002	US20020145469 Signal transmitter with pulse-controlled amplification
10/10/2002	US20020145468 Multistage amplifier circuit
10/10/2002	US20020145467 Folded floating-gate differential pair amplifier
10/10/2002	US20020145460 High speed, low-power CMOS circuit with constant output swing and variable time delay for a voltage controlled oscillator
10/10/2002	US20020145158 Data receiver gain enhancement
10/10/2002	DE10155912A1 Controllable amplifier arrangement for electrical signal processing, has pair of load impedances which are bridged to predetermined portion through output branches of differential amplifier stages
10/10/2002	DE10115391A1 Circuit for tube amplifier has pnp transistor electrically integrated into each end stage between anodes of systems of driver tubes and grids of end tubes
10/10/2002	CA2442332A1 Variable gain low-noise amplifier for a wireless terminal
10/09/2002	EP1248371A1 A converter for converting the level of differential signals
10/09/2002	EP1248363A2 Controller for RF power generator with reduced cable length sensitivity
10/09/2002	EP1247337A1 Power amplifier core
10/09/2002	EP1247328A1 Power converter with remote sensing and high-order filtering of feedback signal
10/09/2002	EP1247109A1 Electrical circuit arrangement for converting an electrical input variable into an impressed output electrical voltage
10/09/2002	EP1101279B1 Amplifier output stage
10/09/2002	CN1373929A 放大器 Amplifier
10/09/2002	CN1373626A Offset control circuit
10/09/2002	CN1373605A HF signal switching circuit for suppressing HF signal distortion
10/09/2002	CN1373555A Reglating method and circuit for poewr amplifying circuit using drain as output stage
10/09/2002	CN1092419C Circuit arrangement with operational amplifier
10/08/2002	US6463269 Power amplification system with intelligent control of amplifier modules
10/08/2002	US6462950 Stacked power amplifier module
10/08/2002	US6462929 Battery polarity insensitive integrated circuit amplifier
10/08/2002	US6462695 Dynamic biasing techniques for low power pipeline analog to digital converters
10/08/2002	US6462628 Isolator device with built-in power amplifier and embedded substrate capacitor
10/08/2002	US6462622 High-frequency amplifier and high-frequency multistage amplifier
10/08/2002	US6462620 RF power amplifier circuitry and method for amplifying signals
10/08/2002	US6462619 Input stag of an operational amplifier
10/08/2002	US6462618 Amplifying circuit with distortionless outputs
10/08/2002	US6462615 High speed closed loop amplifier with gain adjustment
10/08/2002	US6462600 Read-head preamplifier having internal offset compensation
10/08/2002	US6462586 Selectability of maximum magnitudes for K-winner take all circuit
10/08/2002	US6462327 Analog optical receiver and variable gain transimpedance amplifier useful therewith
10/03/2002	WO2002078181A1 High frequency amplifier
10/03/2002	WO2002078180A1 Improvements in travelling wave amplifiers
10/03/2002	WO2002078179A2 Digital signal processor enhanced pulse width modulation amplifier
10/03/2002	WO2002078177A1 Amplifying circuit
10/03/2002	WO2002078170A1 System for controlling a class d amplifier

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