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Henry K Choe

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Ruslan Goriunov
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Patent primary examiner of
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US Patent 7365605 High voltage, high current, and high accuracy amplifier
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US Patent 7378911 Wideband ultra low noise amplifier
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US Patent 7382188 Circuit for reducing distortion of class D amplifier
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US Patent 7382195 Power supply device for driving an amplifier
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US Patent 7382197 Adaptive tuning circuit to maximize output signal amplitude for an amplifier
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US Patent 7385442 System and method for constant bandwidth DC offset correction in an amplifier
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US Patent 7385443 Chopper-stabilized instrumentation amplifier
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US Patent 7385448 Circuitry for adaptively generating and using a reference voltage
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US Patent 7388426 Control circuit and method for a switching amplifier
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US Patent 7388427 Multiple power mode amplifier with bias modulation option and without bypass switches
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US Patent 7388433 Ground inductance compensated quadrature radio frequency amplifier
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US Patent 7388434 BTL amplifier
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US Patent 7391256 System and method for DC correction in wireless receivers
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US Patent 7394313 Multiple power mode amplifier with bias modulation option and without bypass switches
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US Patent 7397302 Variable gain amplifier
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US Patent 7397303 Vacuum tube circuit
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US Patent 7400201 Apparatus and method for reducing drain modulation of high power transistor
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US Patent 7403069 Trifferential amplifier and trifferential amplifier system
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US Patent 7405614 Circuit arrangement having an amplifier arrangement and an offset compensation arrangement
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US Patent 7405617 Dynamic biasing system for an amplifier
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US Patent 7405619 Amplification circuit improved with linearity and frequency converter using the same
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US Patent 7405620 Differential amplifier and method
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US Patent 7405626 Distributed amplifier having a variable terminal resistance
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US Patent 7408401 Vacuum tube replacement device, circuit and system
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US Patent 7408402 Operational amplifier with less offset voltage
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US Patent 7408403 Circuits and methods for amplifying signals
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US Patent 7411452 Low DC power rail-to-rail buffer amplifier for liquid crystal display application
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US Patent 7411454 Electron turbulence damping circuit for a complimentary-symmetry amplification unit
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US Patent 7414465 Amplifier arrangement
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US Patent 7414467 Circuit configuration having a feedback, fully-differential operational amplifier
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US Patent 7414468 Amplifier, filter using the same, and radio communication device
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US Patent 7414472 Differential amplifying circuit
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US Patent 7414475 Linearity-improved differential amplification circuit
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US Patent 7417497 PWM modulator and class-D amplifier having the same
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US Patent 7417501 Variable inductor, oscillator including the variable inductor and radio terminal comprising this oscillator, and amplifier including the variable inductor and radio terminal comprising this amplifier
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US Patent 7417505 CMOS amplifiers with frequency compensating capacitors
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US Patent 7420416 Tunable predistorter
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US Patent 7420417 Two-port dual-gate HEMT for discrete device application
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US Patent 7420418 Circuit for improving amplification and noise characteristics for MOSFET, and frequency mixer, amplifier and oscillator using the circuit
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US Patent 7420424 Power amplifier transmission line transformer
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US Patent 7420425 Power amplifier and method thereof
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US Patent 7423480 AC amplifier for precision measurement
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US Patent 7423481 Amplifier arrangement and amplifying method
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US Patent 7423482 Circuit configuration having a feedback operational amplifier
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US Patent 7423485 Differential circuit with improved linearity
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US Patent 7425865 Differential cascode amplifier
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US Patent 7425867 Differential input/differential output converter circuit
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US Patent 7425870 Current mirror circuit
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US Patent 7427898 Detecting amplifier out-of-range conditions
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US Patent 7429894 Power device having connection structure compensating for reactance component of transmission line
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US Patent 7432761 Amplifier circuit, semiconductor device and electronic apparatus
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US Patent 7432765 Variable gain amplifier, mixer and quadrature modulator using the same
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US Patent 7432766 Front end for an instrumentation amplifier
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US Patent 7436256 Systems and methods for maintaining minimum pulse width during shutdown
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US Patent 7436259 Amplification apparatus
‌
US Patent 7439802 Unilateral feedback power amplifier and method for realizing the same
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US Patent 7439804 Amplifier with level shifting feedback network
‌
US Patent 7439808 High-frequency power amplifier
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US Patent 7446602 Switched capacitor amplifier circuit and method for operating a switched capacitor amplifier circuit
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US Patent 7446603 Differential input Class D amplifier
‌
US Patent 7446605 Amplifier arrangement with controllable gain and method for controlling an amplifier gain
‌
US Patent 7446607 Regulated cascode circuit, an amplifier including the same, and method of regulating a cascode circuit
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US Patent 7446608 Variable gain amplifier with constant input referred third order intercept
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US Patent 7449946 High voltage, high current, and high accuracy amplifier
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US Patent 7449953 Input buffer design using common-mode feedback (CMFB)
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US Patent 7449956 Semiconductor device
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US Patent 7449959 Methods and apparatus to detect impedance at an amplifier output
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US Patent 7453318 Operational amplifier for outputting high voltage output signal
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US Patent 7453319 Multi-path common mode feedback for high speed multi-stage amplifiers
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US Patent 7456685 Class D audio amplifier with PWM and feedback
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US Patent 7456686 Class AD audio amplifier
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US Patent 7456687 Amplifier unit and method of detecting failure in the same
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US Patent 7456693 Regulation of an amplification apparatus
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US Patent 7459970 Method and apparatus for optimizing power dissipation in a low noise amplifier
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US Patent 7463087 Operational amplifier with zero offset
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US Patent 7463090 Driving device
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US Patent 7463092 Amplifier with variable impedance transformation and method of amplification using the same
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US Patent 7463095 Method and apparatus for an LNA with high linearity and improved gain control
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US Patent 7466201 Class AB output stage and method for providing wide supply voltage range
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US Patent 7466202 High-speed CMOS current mirror
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US Patent 7466205 Ultra-wideband low noise amplifier and amplification method thereof
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US Patent 7466206 Amplifier circuit
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US Patent 7468635 Wideband digital single-to-differential converter and method of forming same
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US Patent 7471151 Circuits for quiescent current control
‌
US Patent 7471155 Cancelling switching power supply ripple from a radio frequency signal
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US Patent 7474149 Radio frequency power amplifier and method using a controlled supply
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US Patent 7474151 Active load with adjustable common-mode level
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US Patent 7474153 Dual stage source/sink amplifier circuit with quiescent current determination
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US Patent 7474158 Dynamic match low noise amplifier with reduced current consumption in low gain mode
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US Patent 7482863 Expanded performance and functions for vacuum tube replacement devices
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US Patent 7482865 Systems and methods for correcting errors resulting from component mismatch in a feedback path
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US Patent 7482866 Audio system with power-on/off noise suppression and audio amplifier thereof
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US Patent 7482867 Single stage balanced voltage amplifier
‌
US Patent 7482870 Class D amplifier
‌
US Patent 7486140 Differential amplifier
‌
US Patent 7486141 Wide bandwidth, high power amplifier
‌
US Patent 7489187 Operational amplifier and related noise separation method thereof
‌
US Patent 7489190 Switching audio power amplifier with de-noise function
‌
US Patent 7489199 Saturation detector and warning circuit including clamp
‌
US Patent 7489201 Millimeter-wave cascode amplifier gain boosting technique
‌
US Patent 7489202 RF amplifier with stacked transistors, transmitting device, and method therefor
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US Patent 7492220 Methods for controlling power stage of power amplifier and related apparatuses
‌
US Patent 7492221 Power conversion regulator with exponentiating feedback loop
‌
US Patent 7492222 Compound automatic gain control
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US Patent 7492225 Gain-controlled amplifier
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US Patent 7495511 Input system for a variable gain amplifier having class-AB transconductance stages
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US Patent 7495513 Signaling system with low-power automatic gain control
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US Patent 7495515 Low-noise amplifier
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US Patent 7498874 Glitch-free start-up with a tracking pin
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US Patent 7498875 Technique to improve the gain and signal to noise ratio in CMOS switched capacitor amplifiers
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US Patent 7498878 Multi-path doherty amplifier and control method of a multi-path doherty amplifier
‌
US Patent 7498882 Signaling system with low-power automatic gain control
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US Patent 7498883 Distributed amplifier with built-in filtering functions
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US Patent 7501888 Gain control methods and systems in an amplifier assembly
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US Patent 7501889 Method and apparatus for implementing soft switching in a class D amplifier
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US Patent 7501895 Channel state aided automatic gain control
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US Patent 7504881 Power amplifier
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US Patent 7504889 Circuit for providing a signal boost
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US Patent 7508265 Rail-to-rail class-AB operational amplifier
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US Patent 7508268 Power amplifier and transmission and reception system
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US Patent 7508272 Methods and systems to provide a plurality of signals having respective different phases
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US Patent 7511572 High-impedance level-shifting amplifier capable of handling input signals with a voltage magnitude that exceeds a supply voltage
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US Patent 7511574 Predistorter
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US Patent 7511578 Stacked RF power amplifier
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US Patent 7514995 Standby and concurring system of a power amplifier and method for power amplifying
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US Patent 7518440 Dual path chopper stabilized amplifier and method
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US Patent 7518442 Circuit and method for suppressing switching and supply-related errors in a PWM power stage by instantaneous per-pulse feedback
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US Patent 7518445 Systems, methods, and apparatuses for linear envelope elimination and restoration transmitters
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US Patent 7521994 Three-stage amplifier
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US Patent 7522003 Constant margin CMOS biasing circuit
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US Patent 7522004 High-frequency electronic switch, and burst wave generating device using the same and short range radar using the same
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US Patent 7525388 Bias circuits and signal amplifier circuits
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US Patent 7528649 Method for designing input circuitry for transistor power amplifier
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US Patent 7528651 Noise free implementation of PWM modulator combined with gate driver stage in a single die
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US Patent 7528658 Threshold voltage compensation for a two stage amplifier
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US Patent 7528659 Fully differential amplification device
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US Patent 7532069 Differential amplifying circuit
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US Patent 7532071 Operational amplifier circuit
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US Patent 7532072 Method to control the output common mode in a differential OPAMP with rail-to-rail input stage
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US Patent 7532074 Device and method for biasing a transistor amplifier
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US Patent 7535292 Optimized uplink efficiencies for transmission of satellite data
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US Patent 7535295 Chopper stabilized amplifiers combining low chopper noise and linear frequency characteristics
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US Patent 7535299 High-frequency amplification circuit
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US Patent 7535302 Operational amplifier and display device
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US Patent 7538606 Constant bandwidth DC offset correction in an amplifier
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US Patent 7541866 Enhanced doherty amplifier with asymmetrical semiconductors
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US Patent 7541868 Delay modulator pre-distortion circuit for an amplifier
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US Patent 7541870 Cross-coupled low noise amplifier for cellular applications
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US Patent 7541874 High-frequency power amplifier device
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US Patent 7541876 Amplifier and method for operating the same
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US Patent 7545207 Control circuit and method for a switching amplifier
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US Patent 7545213 Operational amplifier
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US Patent 7545215 Circuit to prevent load-induced DC nonlinearity in an op-amp
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US Patent 7551025 High-voltage transconductance circuit
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US Patent 7551030 Two-stage operational amplifier with class AB output stage
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US Patent 7551031 Amplifier
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US Patent 7551034 Saturation handling
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US Patent 7551036 Power amplifier for amplifying high-frequency (H.F.) signals
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US Patent 7554391 Amplifier having a virtual ground and method thereof
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US Patent 7554399 Protection circuit and method for protecting switching power amplifier circuits during reset
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US Patent 7554402 High CMR amplifier topology
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US Patent 7554404 Method and system for a low noise amplifier with tolerance to large inputs
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US Patent 7554405 Adaptive biasing input stage and amplifiers including the same
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US Patent 7557649 DC offset cancellation circuit and programmable gain amplifier using the same
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US Patent 7557655 Systems and methods for isolating an analog signal
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US Patent 7557657 Variable gain amplifier with wide gain variation and wide bandwidth
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US Patent 7557659 Slew-enhanced input stages and amplifiers
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US Patent 7557660 Power amplification device
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US Patent 7560991 Dynamically compensated operational amplifier
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US Patent 7560994 Systems and methods for cascode switching power amplifiers
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US Patent 7564302 Method and system for gain control and power saving in broadband feedback low-noise amplifiers
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US Patent 7564303 Semiconductor power device and RF signal amplifier
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US Patent 7564305 System and method for self-cancellation of N
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US Patent 7564311 Method and apparatus to enhance linearity and efficiency in an RF power amplifier
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US Patent 7567126 Variable gain amplifier and control method thereof
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US Patent 7570112 Ultrasound imaging or other use variable input impedance preamplifier
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US Patent 7570116 Output stage
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US Patent 7570119 Cascode-connected amplifier circuit, semiconductor integrated circuit using same, and receiving apparatus using same
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US Patent 7573330 High efficiency digital power amplifier
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US Patent 7573334 Bias control circuitry for amplifiers and related systems and methods of operation
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US Patent 7576603 Arrangement for canceling offset of an operational amplifier
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US Patent 7576606 Digital PWM amplifier having a low delay corrector
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US Patent 7576607 Multi-segment primary and multi-turn secondary transformer for power amplifier systems
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US Patent 7576609 Preamplifier for receiver and method thereof
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US Patent 7579909 Bypass circuit for radio-frequency amplifier stages
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US Patent 7579911 Semiconductor circuit
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US Patent 7579913 Low power comsumption, low noise and high power gain distributed amplifiers for communication systems
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US Patent 7583138 System and method for controlling an error amplifier between control mode changes
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US Patent 7583139 Power-efficient automatic gain control
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US Patent 7583142 Low skew differential amplifier using tail voltage reference and tail feedback
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US Patent 7583147 Buffer drive
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US Patent 7592871 Fully differential current-feedback CMOS/bipolar operational amplifier
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US Patent 7595688 High power commutating multiple output amplifier system
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US Patent 7598804 Amplifier circuit
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US Patent 7598808 Gigabit ethernet transceiver with analog front end
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US Patent 7598809 RF power amplifier
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US Patent 7598810 Power amplifier having input ends combined in series and output ends combined in series
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US Patent 7598812 Shorted input detection for amplifier circuits
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US Patent 7598814 Method and apparatus for an LNA with high linearity and improved gain control
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US Patent 7602238 Power amplifier
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US Patent 7602240 Power amplifier with an output matching network
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US Patent 7602241 Multiband Doherty amplifier
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US Patent 7602249 Amplifier electronic circuit comprising a differential pair and a feedback system
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US Patent 7602250 Low noise AC differential amplifier with reduced low corner frequency and current consumption
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US Patent 7605647 Chopper-stabilized amplifier and magnetic field sensor
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US Patent 7605658 Resistively loaded single stage differential amplifier having zero volt common mode input
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US Patent 7609112 Boosted tail-current circuit
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US Patent 7609115 Input circuitry for transistor power amplifier and method for designing such circuitry
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US Patent 7612611 Amplifier circuit
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US Patent 7612612 Calibration circuitry and delay cells in rectilinear RF power amplifier
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US Patent 7612614 Device and method for biasing a transistor amplifier
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US Patent 7616053 Power amplifier circuit and method for envelope modulation of high frequency signal
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US Patent 7616056 Nauta operational transconductance amplifier
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US Patent 7619479 Semiconductor integrated circuit
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US Patent 7619482 Compact low voltage low noise amplifier
‌
US Patent 7622987 Pattern-based DC offset correction
‌
US Patent 7622988 Chopper-stabilized instrumentation amplifier for impedance measurement
‌
US Patent 7622991 Transconductance signal capacity format
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US Patent 7622993 Current mirror circuit
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US Patent 7622995 Negative-feedback type ultra-wideband signal amplification circuit
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US Patent 7626456 Overdrive control system
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US Patent 7629841 Sigma-delta modulator with feedback for power amplifiers
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US Patent 7629843 Parallel power amplifier and associated methods
‌
US Patent 7629849 Driving amplifier circuit with digital control
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US Patent 7633340 Apparatus and method for determining the voltage level of an input signal
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US Patent 7636016 Current mirror circuit
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US Patent 7639073 Switched-capacitor amplifier with improved reset phase
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US Patent 7642847 Power supply processing for power amplifiers
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US Patent 7642853 High-swing operational amplifier output stage using adaptive biasing
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US Patent 7642854 Amplifier circuit having an output transistor for driving a complex load
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US Patent 7642855 Compensation of an amplifier comprising at least two gain stages
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US Patent 7642858 Active baluns
‌
US Patent 7646238 Amplification apparatus
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US Patent 7646241 Low-voltage operational amplifier and operational amplifying method
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US Patent 7646243 Controlled transconductance differential stage
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US Patent 7646246 Semiconductor device
‌
US Patent 7646248 Harmonic tuned doherty amplifier
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US Patent 7646249 Cross-differential amplifier
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US Patent 7646251 Radio frequency application circuit
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US Patent 7649410 Systems and methods for improving performance in a digital amplifier by adding an ultrasonic signal to an input audio signal
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US Patent 7649412 High efficiency amplifier
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US Patent 7649413 High-frequency power amplifier improved in size and cost
‌
US Patent 7649415 Class L amplifier
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US Patent 7649416 Load inductor sharing
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US Patent 7649419 Device and method including current measurement and/or amplification
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US Patent 7652534 Rail-to-rail operational amplifier capable of reducing current consumption
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US Patent 7656228 Matching circuit and multi-band amplifier
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US Patent 7656230 Quadrature output low noise transconductance amplifier having differential input
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US Patent 7659780 Gain control circuit
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US Patent 7667536 Offset fixing operational amplifier circuit
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US Patent 7667540 Class-AB driver design with improved frequency response
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US Patent 7667543 Power supply device for driving an amplifier
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US Patent 7671672 Baseband noise reduction
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US Patent 7671679 Semiconductor integrated circuit and amplifier for suppressing pop sound while minimizing voltage transition settling time
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US Patent 7671681 Gigabit ethernet transceiver with analog front end
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US Patent 7671683 Semiconductor integrated circuit and method for adjusting a capacitance value of a phase compensating capacitor
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US Patent 7671685 Method and system for a low power fully differential noise cancelling low noise amplifier
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US Patent 7675359 Switch-around low noise amplifier
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US Patent 7679433 Circuit and method for RF power amplifier power regulation and modulation envelope tracking
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US Patent 7679438 High frequency circuit, semiconductor device, and high frequency power amplification device
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US Patent 7679439 Predistorter
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US Patent 7679444 Differential amplifier system
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US Patent 7679447 Variable gain amplifier circuit and filter circuit
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US Patent 7679451 Power supply device for driving an amplifier
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US Patent 7679452 Amplifier arrangement and method
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US Patent 7683709 Low frequency power amplifier employing high frequency magnetic components
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US Patent 7688133 Power amplifier
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US Patent 7688145 Variable gain amplifying device
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US Patent 7688147 Floating differential amplifier architectures
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US Patent 7692493 High-efficiency single to differential amplifier
‌
US Patent 7692495 Tunable RF bandpass transconductance amplifier
‌
US Patent 7696817 Auto-gain correction and common mode voltage cancellation in a precision amplifier
‌
US Patent 7696819 Switched-capacitor variable gain amplifier having high voltage gain linearity
‌
US Patent 7701293 Amplifier symmetric supply regulation
‌
US Patent 7705670 Wide-range and high-resolution programmable gain amplifier
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US Patent 7705677 CMOS amplifiers with frequency compensating capacitors
‌
US Patent 7705681 Apparatus for coupling at least one of a plurality of amplified input signals to an output terminal using a directional coupler
‌
US Patent 7705683 Method and system for processing signals via an integrated low noise amplifier having configurable input signaling mode
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US Patent 7714661 Single supply direct drive amplifier
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US Patent 7719353 LINC amplifying device
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US Patent 7719354 Dynamic biasing system for an amplifier
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US Patent 7719364 High frequency power amplifier
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US Patent 7724080 Chopper stabilized amplifier
‌
US Patent 7724086 Apparatus and method for regulating the output power of an amplifier stage
‌
US Patent 7724091 Matrix balun
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US Patent 7728664 Low noise amplifier with multiple inputs and multiple outputs
‌
US Patent 7728665 Distortion compensation apparatus and method
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US Patent 7733168 Fully differential comparator and fully differential amplifier
‌
US Patent 7733172 DC self-biased vacuum tube differential amplifier with grid-to-cathode over-voltage protection
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US Patent 7733173 Unilateral feedback power amplifier and method for realizing the same
‌
US Patent 7733174 Feedback controlled power limiting for signal amplifiers
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US Patent 7733177 Method and system for calculating the pre-inverse of a nonlinear system
‌
US Patent 7733178 High efficiency audio amplifier
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US Patent 7733184 Circuit arrangement and method for power regulation and amplifier arrangement
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US Patent 7733186 Bias circuit and amplifier using the same
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US Patent 7737783 Differential amplifier
‌
US Patent 7737787 Impedance-mapping amplifier circuit with exclusively reactive negative feedback
‌
US Patent 7737788 Cascode gain boosting system and method for a transmitter
‌
US Patent 7737789 Broadband active balun
‌
US Patent 7741914 Amplifier system with dynamically-adjusted supply voltage
‌
US Patent 7746169 LNA having a post-distortion mode and a high-gain mode
‌
US Patent 7750731 PWM loop filter with minimum aliasing error
‌
US Patent 7755423 Sigma delta class D power amplifier and method thereof
‌
US Patent 7755425 Method and apparatus for reducing frequency memory effects in RF power amplifiers
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US Patent 7760017 Integrated circuit having on die structure providing capacitance in amplifier feedback path
‌
US Patent 7760026 Switched capacitor voltage converter for a power amplifier
‌
US Patent 7760027 Power amplifier output voltage reduction method
‌
US Patent 7764118 Auto-correction feedback loop for offset and ripple suppression in a chopper-stabilized amplifier
‌
US Patent 7764122 Dual stage source/sink amplifier circuit with quiescent current determination
‌
US Patent 7768346 System for amplifier linearization with envelope feedback
‌
US Patent 7768353 Systems and methods for switching mode power amplifier control
‌
US Patent 7768354 Radio-frequency power amplifier
‌
US Patent 7772922 Method and system for testing data signal amplifier having output signal power dependent upon multiple power control parameters
‌
US Patent 7772923 Test circuit for programmable gain amplifier
‌
US Patent 7772927 Active bias Darlington amplifier
‌
US Patent 7777563 Spread spectrum pulse width modulation method and apparatus
‌
US Patent 7777564 Amplifier using sigma-delta modulation and method for adjusting errors of the amplifier thereof
‌
US Patent 7777566 Amplifier compression adjustment circuit
‌
US Patent 7777572 Integrated power amplifier
‌
US Patent 7782132 Method and apparatus for improving the performance of MIMO wireless systems
‌
US Patent 7782138 Signaling system with low-power automatic gain control
‌
US Patent 7782140 Analog circuit
‌
US Patent 7782142 High speed differential to single ended converting circuit
‌
US Patent 7786794 Amplifier circuit
‌
US Patent 7786799 Trimming technique for high voltage amplifiers using floating low voltage structures
‌
US Patent 7786804 Driving amplifier circuit with digital control and DC offset equalization
‌
US Patent 7791412 Gain control methods and systems in an amplifier assembly
‌
US Patent 7791413 Linearizing technique for power amplifiers
‌
US Patent 7795961 Offset cancellation circuit and display device
‌
US Patent 7795968 Power ranging transmit RF power amplifier
‌
US Patent 7795971 Electronic circuit and electronic device
‌
US Patent 7795974 Digitally variable gain amplifier using multiplexed gain blocks
‌
US Patent 7795978 Programmable gain circuit and amplification circuit
‌
US Patent 7800437 Closed loop timing feedback for PWM switching amplifiers using predictive feedback compensation
‌
US Patent 7800438 Bypass device for microwave amplifier unit
‌
US Patent 7800442 Output networks in combination with LINC technique
‌
US Patent 7800443 Circuit arrangement for providing an analog signal, and electronic apparatus
‌
US Patent 7804359 Linearization with memory compensation
‌
US Patent 7804365 Multilayer amplifier module
‌
US Patent 7804366 Millimeter wave monolithic integrated circuits
‌
US Patent 7808321 Amplifier circuit
‌
US Patent 7808323 High-efficiency envelope tracking systems and methods for radio frequency power amplifiers
‌
US Patent 7808324 Operating environment and process position selected charge-pump operating mode in an audio power amplifier integrated circuit
‌
US Patent 7812665 Amplifiers with input offset trim and methods
‌
US Patent 7812666 Low delay corrector
‌
US Patent 7812667 System and method of enabling a signal processing device in a relatively fast manner to process a low duty cycle signal
‌
US Patent 7812673 Amplifier having input/output cells with discrete gain steps
‌
US Patent 7812675 Receiver comprising an amplifier
‌
US Patent 7816982 Switching audio power amplifier with de-noise function
‌
US Patent 7816983 Fast switch for controlling a differential-pair amplifier
‌
US Patent 7821334 Amplification circuit
‌
US Patent 7821335 Semiconductor integrated circuit with variable gain amplifier
‌
US Patent 7821339 Composite differential RF power amplifier layout
‌
US Patent 7821340 Output stage circuit and operational amplifier
‌
US Patent 7821341 Gain control device and amplifier using the same
‌
US Patent 7830207 Amplifier circuit
‌
US Patent 7830208 High-power common-base amplifier employing current source output bias
‌
US Patent 7830209 Signal level selected efficiency in a charge pump power supply for a consumer device audio power output stage
‌
US Patent 7834693 Amplifying circuit
‌
US Patent 7834695 Differential input amplifier
‌
US Patent 7834698 Amplifier with improved linearization
‌
US Patent 7834700 Radio frequency power amplifier
‌
US Patent 7834701 Bias circuit and semiconductor integrated circuit including the bias circuit
‌
US Patent 7834703 Amplifier with single-ended input and differential output
‌
US Patent 7839211 Error correction system for a class-D power stage
‌
US Patent 7839212 Method and apparatus for a high bandwidth amplifier with wide band peaking
‌
US Patent 7843262 High efficiency power amplifier
‌
US Patent 7843273 Millimeter wave monolithic integrated circuits and methods of forming such integrated circuits
‌
US Patent 7847628 Chopper-stabilized instrumentation amplifier
‌
US Patent 7847629 Sample-and-hold amplifiers
‌
US Patent 7847638 Cascoded circuit
‌
US Patent 7852151 Variable gain amplifier
‌
US Patent 7855600 Two-stage operational amplifier with class AB output stage
‌
US Patent 7859330 Optimized uplink efficiencies for transmission of satellite data
‌
US Patent 7859331 Predictive feedback compensation for PWM switching amplifiers
‌
US Patent 7859334 Hybrid power control for a power amplifier
‌
US Patent 7863975 Method for calibrating a power amplifier and device using the same
‌
US Patent 7863982 Driving circuit capable of enhancing response speed and related method
‌
US Patent 7863985 High frequency amplifier linearization technique
‌
US Patent 7872527 Power supply control system and method with variable post-regulation
‌
US Patent 7872530 Flexible dynamic range amplifier
‌
US Patent 7872531 Amplifier bias techniques
‌
US Patent 7872532 High-frequency power amplifier and communication device
‌
US Patent 7872533 Leakage current reduction in a power regulator
‌
US Patent 7876152 High-impedance level-shifting amplifier capable of handling input signals with a voltage magnitude that exceeds a supply voltage
‌
US Patent 7876155 Transimpedance amplifier with distributed control of feedback line
‌
US Patent 7876157 Power amplifier bias circuit having controllable current profile
‌
US Patent 7880548 Headphone amplifier circuit
‌
US Patent 7880549 Transistor including intrinsic harmonic trap
‌
US Patent 7884671 Low power operational amplifier
‌
US Patent 7884673 Wideband low-noise amplifier
‌
US Patent 7888995 Differential amplifier circuit having offset adjustment circuit
‌
US Patent 7888997 Systems, methods, and apparatuses for linear envelope elimination and restoration transmitters
‌
US Patent 7888999 Premium power amplifier
‌
US Patent 7889001 Systems and methods of reduced distortion in a class D amplifier
‌
US Patent 7889004 Operational amplifiers with enhanced parameters
‌
US Patent 7889006 dB-linear process-independent variable gain amplifier
‌
US Patent 7889008 Programmable gain MOS amplifier
‌
US Patent 7893762 Efficient composite amplifier
‌
US Patent 7893763 Apparatus and method for power added efficiency optimization of high amplification applications
‌
US Patent 7893764 Power amplifier and common mode choke coil apparatus
‌
US Patent 7893765 Current canceling variable gain amplifier and transmitter using same
‌
US Patent 7893766 Adaptive common mode bias for differential amplifier input circuits
‌
US Patent 7893770 Power amplification device
‌
US Patent 7898323 Amplifying circuit with offset compensation
‌
US Patent 7898328 Differential amplifier
‌
US Patent 7898329 Common-mode robust high-linearity analog switch
‌
US Patent 7898332 Semiconductor integrated circuit device
‌
US Patent 7898338 High power integrated RF amplifier
‌
US Patent 7898339 Amplifier circuit
‌
US Patent 7902921 Output networks in combination with LINC technique
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US Patent 7902923 Common-gate common-source amplifier
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US Patent 7907009 High frequency amplifier
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US Patent 7907012 Current mirror with low headroom and linear response
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US Patent 7911268 Apparatus and method for improving the feedback linearity of a 1.5-bit sigma-delta class-D amplifier
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US Patent 7911271 Hybrid broadband power amplifier with capacitor matching network
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US Patent 7911278 Biased low differential input impedance current receiver/converter device and method for low noise readout from voltage-controlled detectors
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US Patent 7911279 Amplifier with bias circuit providing improved linearity
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US Patent 7911280 Amplifier stage
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US Patent 7915955 Bias balancing circuit
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US Patent 7915956 Vector modulator having attenuators with continuous input steering
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US Patent 7920027 Amplifier design with biasing and power control aspects
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US Patent 7924088 Offset voltage calibration method and apparatus and amplifier thereof
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US Patent 7924097 Solid-state ultra-wideband microwave power amplifier employing modular non-uniform distributed amplifier elements
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US Patent 7928802 RF amplification device
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US Patent 7936214 Third order derivative distortion cancellation for ultra low power applications
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US Patent 7936215 Multi-segment primary and multi-turn secondary transformer for power amplifier systems
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US Patent 7936218 Shared-current electronic system
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US Patent 7940126 Signal amplification apparatus with advanced linearization
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US Patent 7944293 Systems and methods for an adaptive bias circuit for a differential power amplifier
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US Patent 7944296 Low power mode amplification with a transformer output matching and a virtual ground
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US Patent 7944300 Bias circuit and amplifier providing constant output current for a range of common mode inputs
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US Patent 7948313 Class D amplifier circuit
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US Patent 7948322 Balun amplifier
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US Patent 7952428 Dynamically adjustable low noise, low power instrumentation amplifier
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US Patent 7952432 Class-D amplifier
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US Patent 7956682 Amplifier
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US Patent 7961042 Amplifier circuit and magnetic sensor
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US Patent 7961047 Switching amplifier
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US Patent 7961050 Integrated circuits including an equalizer and operating methods thereof
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US Patent 7961052 RF power amplifier integrated circuit and unit cell
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US Patent 7961053 Integrated circuit having a dummy transimpedance amplifier
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US Patent 7965136 Multiport amplifier adjustment
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US Patent 7965139 Amplifier offset and noise reduction in a multistage system
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US Patent 7969241 Gain control methods and systems in an amplifier assembly
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US Patent 7969242 Switching power amplifier for quantized signals
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US Patent 7969245 Millimeter-wave monolithic integrated circuit amplifier with opposite direction signal paths and method for amplifying millimeter-wave signals
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US Patent 7973601 Distortion compensation apparatus
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US Patent 7978007 Feedback network for cascaded amplifiers
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US Patent 7978008 Supply voltage control device for amplifier
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US Patent 7986184 Radio frequency amplifier with effective decoupling
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US Patent 7986186 Adaptive bias technique for field effect transistor
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US Patent 7986189 Amplifier with feedback
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US Patent 7990212 Modulated audio amplifier output enable control
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US Patent 7990216 Cross-coupled low noise amplifier for cellular applications
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US Patent 7990217 Input system for a variable gain amplifier having class-AB transconductance stages
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US Patent 7990218 Db-linear process-independent variable gain amplifier
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US Patent 7990221 Detector circuit and system for a wireless communication
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US Patent 7994854 Circuit with a power amplifier and amplification method
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US Patent 7994856 Predistorter, predistortion method, and predistortion system
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US Patent 7999614 Power amplifying device with linear corrector
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US Patent 7999615 Current canceling variable gain amplifier and transmitter using same
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US Patent 7999621 Cross-differential amplifier
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US Patent 8004354 Automatic level control
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US Patent 8004355 Low dissipation amplifier
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US Patent 8004362 Gate bias circuit
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US Patent 8008975 Gate-boosted, variable voltage supply rail amplifier
Edits on 8 Dec, 2021
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US Patent 8008975 Gate-boosted, variable voltage supply rail amplifier
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US Patent 8004362 Gate bias circuit
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US Patent 8004354 Automatic level control
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Patent primary examiner of
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US Patent 8004355 Low dissipation amplifier
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edited on 8 Dec, 2021
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Infobox
Patent primary examiner of
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US Patent 7999615 Current canceling variable gain amplifier and transmitter using same
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edited on 8 Dec, 2021
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Infobox
Patent primary examiner of
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US Patent 7999621 Cross-differential amplifier
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edited on 8 Dec, 2021
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US Patent 7999614 Power amplifying device with linear corrector
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edited on 8 Dec, 2021
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US Patent 7994856 Predistorter, predistortion method, and predistortion system
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edited on 8 Dec, 2021
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US Patent 7994854 Circuit with a power amplifier and amplification method
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US Patent 7990221 Detector circuit and system for a wireless communication
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US Patent 7990216 Cross-coupled low noise amplifier for cellular applications
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edited on 8 Dec, 2021
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Patent primary examiner of
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US Patent 7990218 Db-linear process-independent variable gain amplifier
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edited on 8 Dec, 2021
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Patent primary examiner of
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US Patent 7990217 Input system for a variable gain amplifier having class-AB transconductance stages
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edited on 8 Dec, 2021
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Patent primary examiner of
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US Patent 7990212 Modulated audio amplifier output enable control
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edited on 8 Dec, 2021
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US Patent 7986189 Amplifier with feedback
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US Patent 7986186 Adaptive bias technique for field effect transistor
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US Patent 7986184 Radio frequency amplifier with effective decoupling

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