Communication transceiver having a three-line balun with power amplifier bias

Signal reproducing device

Dynamically adjustable low noise, low power instrumentation amplifier

Low noise, low power instrumentation amplifier

Noise cancellation for microphone-speaker combinations using combined speaker amplifier and reference sensing

Current to voltage converter

Preamplifier circuit for a microelectromechanical capacitive acoustic transducer

Chopper-stabilized instrumentation amplifier for impedance measurement

Audio processing circuit and preamplifier circuit

Low noise amplifier

Power control circuit

Radio frequency unit analog level detector and feedback control system

Multi-bit class-D power amplifier system

Digital signal converter

Reconfigurable distributed active transformers

Front end and high frequency receiver having quadrature low noise amplifier

Integrated switchless programmable attenuator and low noise amplifier

ELECTRONIC DEVICE FOR SELF OSCILLATING CLASS D SYSTEM

Low noise amplifier

Broadband low noise amplifier

Broadband low noise amplifier

Enhanced low noise amplifier

Controlling amplifier input impedance

FREQUENCY GENERATION CIRCUIT

POWER CONTROL CIRCUIT

Low RF interference switching amplifier and method

Amplifier circuitry

Transconductance amplifier with a filter for rejecting noise outside the useful band

AUDIO DEVICE, AV SYSTEM HAVING THE AUDIO DEVICE, AND METHOD TO CONTROL THE AUDIO DEVICE

Wireless electronic device with multimode audio amplifier

Error correction system for a class-D power stage

Low noise amplifier

Low-noise source

Chopper-stabilized instrumentation amplifier for impedance measurement

Radio frequency unit analog level detector and feedback control system

Input system for a variable gain amplifier having class-AB transconductance stages

Communication transceiver having a three-line balun with power amplifier bias

Post amplifier with selectable gain

LOW VOLTAGE MIXER CIRCUIT

Method and system for multiple tuner application using a low noise broadband distribution amplifier

Amplifier arrangement and signal generation method

Frequency divider circuits

Noise filter and noise-filter-incorporated amplifier circuit

Amplifier arrangement and method

Receiver having a gain-controllable input stage

Impedance-mapping amplifier circuit with exclusively reactive negative feedback

GAIN-CONTROLLED LOW NOISE AMPLIFIER MEANS

Smart linearized power amplifier and related systems and methods

Class D amplifier

Active Splitter Device and Method Using Diplexed Front End

Low noise amplifier for ultra wide band

Adaptive radio transceiver with offset PLL with subsampling mixers

Over-current protection in linear regulators

High linearity, high efficiency power amplifier with DSP assisted linearity optimization

Device comprising a feedback-less gain controlled amplifier

FREQUENCY TUNABLE LOW NOISE AMPLIFIER

Receiver comprising an amplifier

Amplifier

Low noise amplifier and differential amplifier

Cascode amplifier and differential cascode voltage-controlled oscillator using the same

Automatic gain control circuit and low noise amplifying circuit

Configurable feedback for an amplifier

Radio transmitter

Operational amplifier and operating method thereof

MULTI-BAND TUNABLE RESONANT CIRCUIT

High frequency power amplifier circuit and electronic component for high frequency power amplifier

Low-noise amplifier circuit and receiving system

Tuner and portable device using the same

AMPLIFIER

Unilateral feedback power amplifier and method for realizing the same

Amplifier circuit

Semiconductor device

Integrated Circuit Amplifiers Having Switch Circuits Therein that Provide Reduced 1/f Noise

Full-Bridge Class-D Power Amplifier

Electronic component for communication device and semiconductor device for switching transmission and reception

Configurable, variable gain LNA for multi-band RF receiver

Receiver comprising an amplifier

Semiconductor integrated circuit device

Audio system for improving a signal to noise ratio

Composite integrated semiconductor device

Fully integrated tuner architecture

Monolithic LNA support IC

Transformer circuit

Low noise amplifier having improved linearity

FIELD EFFECT TRANSISTOR AMPLIFIER WITH LINEARIZATION

Gain insensitive high-pass VGA

Amplifier circuit with adjustable amplification

Multistage Resonant Amplifier System and Method

Low noise amplifier

Reconfigurable distributed active transformers

Dual-chopper amplifier and its usage as readout circuit for capacitive sensors

LNA gain adjustment in an RF receiver to compensate for intermodulation interference

Power amplifier

Chopper-stabilized instrumentation amplifier for impedance measurement

Low RF interference switching amplifier and method

System and apparatus for a three-line balun with power amplifier bias

Methods of Enhancing Power Amplifier Linearity

Method and system for a low power fully differential noise cancelling low noise amplifier

Method and apparatus for periodic noise suppression in transient signals

Digital amplifying apparatus with noise reduction

High performance low noise amplifier

Analog circuit, electronic instrument, and operational amplifier

Amplifier circuit and method for reducing voltage and current noise

Noise reduction system and method for audio switching amplifier

By-pass arrangement of a low noise amplifier

Switching amplifier circuits and methods

Glitchless clock multiplexer controlled by an asynchronous select signal

Bypassable low noise amplifier topology with multi-tap transformer

Audio amplifier capable of performing self-oscillation

Broadband low noise amplifier

Differential amplifier

High frequency power amplifier circuit and electronic component for high frequency power amplifier

Unilateral feedback power amplifier and method for realizing the same

Low-pass filter and voltage-current conversion circuit used in the same

Tunable low noise amplifier

Amplifier apparatus and method

Amplifier apparatus and method

ACTIVE EMI SUPPRESSION CIRCUIT

Electric component for communication device and semiconductor device for switching transmission and reception

Sigma-delta based Class D audio or servo amplifier with load noise shaping

Wide-band low-noise CMOS amplifier

Semiconductor integrated circuit device

Class-D audio amplifier with half-swing pulse-width-modulation

Configurable circuits using phase change switches

Hybrid output stage apparatus and related method thereof

Operational amplifier and operating method thereof

Single-ended screen-regulated cathode-follower output stage for high-fidelity music amplifier

Resonator matching network

Tunable cascode LNA with flat gain response over a wide frequency range

Low-noise transmitter system and method

Tuneable circuit for canceling third order modulation

Amplifier circuit

Low noise, low dropout regulators

Transmitter apparatus and wireless communication apparatus

Input system for a variable gain amplifier having class-AB transconductance stages

Push-pull amplifier and method for low noise amplification

Control of an adjustable gain amplifier

Apparatus and method for performing a calculation operation

Composite integrated semiconductor device

Distribution of Radio-Frequency Signals in an Electronic Circuit

Modulation circuit device, modulation method and radio communication device

Variable gain amplifier and differential amplifier

High Linearity Modulation System and Modulation Method

Signal Output Circuit, Audio Signal Output Apparatus Using The Same, And Electronic Device

Low return loss resistive feedback amplifier

Biomedical signal instrumentation amplifier

Noise free implementation of PWM modulator combined with gate driver stage in a single die

Dual op amp IC with single low noise op amp configuration

Class AB folded cascode stage and method for low noise, low power, low-offset operational amplifier

Electrolytic depilation device

Full swing amplifying circuit and applications thereof

Differential amplifier with active post-distortion linearization

Dynamic bias control in power amplifier

Amplifier

Variable gain amplifier and communication apparatus

Wideband ultra low noise amplifier

High linearity and low noise amplifier with continuously variable gain control

Low noise amplifiers for low-power impulse radio ultra-wideband receivers

Integrated low noise amplifier

Antenna interface unit

Semiconductor integrated circuit for communication, radio-communication apparatus, and transmission starting method

Gain boosting for tuned differential LC circuits

PWM digital amplifier with high-order loop filter

Single-ended input to differential-ended output low noise amplifier implemented with cascode and cascade topology

Operational amplifier

A-AB transconductor

Control of a power amplifier for reducing power consumption in a transceiver

High frequency power amplifier

Differential amplifier and radio system with a differential amplifier

Differential amplifier and digital-to-analog converter

Variable gain circuit

Analog amplitude detector

Amplifier input switch configuration with improved PSRR

DIFFERENTIAL PAIR SIGNAL LINES MATCHING CIRCUIT

Amplifier with improved noise performance and extended gain control range

Apparatus and method for importing content including plural pieces of usage constraint information

Circuit for suppressing audio noise

Regulated power supply unit

Automatically setting an operative state of a wideband amplifier

Preserving linearity of an isolator-free power amplifier by dynamically adjusting gain and phase

Switching amplifier

High-frequency electronic switch, and burst wave generating device using the same and short range radar using the same

RF balanced matching device

Amplifier and communication apparatus

Doherty amplifier configuration for a collector controlled power amplifier

Multi-channel noise reduction system with direct instrument tracking

Amplifier and amplifier gain adjustment circuitry using current steering, and multimode communication device containing same

Preserving linearity of an isolator-free power amplifier by dynamically switching active devices

CLASS D AMPLIFIER

Electronic apparatus having audio output units

On-chip tunable artificial tank circuit

Integrated switchless programmable attenuator and low noise amplifier

Techniques for designing wide band low noise amplifiers

Stabilization circuit and multiband amplification circuit

Miniature dual band power amplifier with reserved pins

Operational amplifier and related noise separation method thereof

Radio apparatus

Distortion/efficiency adaptation in a variable-data-rate radio transmitter

Low noise amplifier

Low Noise, High Linearity TV Tuner Architecture with Switched Fixed-Gain LNA

Inductorless broadband RF low noise amplifier

Output circuit and current source circuit used in the same

Differential circuit with improved linearity

Multi-band low noise amplifier

Active input load wide bandwidth low noise HEMT amplifier

Amplifier arrangement for ultra-wideband applications and method

Electronic circuit for amplification of a bipolar signal

Two-bit offset cancelling A/D converter with improved common mode rejection and threshold sensitivity

Off-chip LC circuit for lowest ground and VDD impedance for power amplifier

Reducing flicker noise in two-stage amplifiers

Fully integrated tuner architecture

Gain insensitive high-pass VGA

Amplifier circuit and amplifying method

Common gate with resistive feed-through low noise amplifier

Variable gain amplifier

Multilevel power amplifier architecture using multi-tap transformer

Method for transconductance linearization for DC-coupled applications

Bypassable low noise amplifier topology with multi-tap transformer

Selective differential low-noise amplifier

Voltage-controlled amplifier for a signal processing system

Neutralization of feedback capacitance in amplifiers

Low noise amplifier

Reference buffer with improved drift

Integrated RF circuits

Radio transmitter

Configurable multi-mode modulation system and transmitter

Semiconductor device

Low-noise source

Temperature sensor insensitive to device offsets with independent adjustment of slope and reference temperature

Use of a thick oxide device as a cascode for a thin oxide transconductance device in MOSFET technology and its application to a power amplifier design

Amplifier with active post-distortion linearization

Reconfigurable distributed active transformers

Amplifier circuit

Elimination of pop-up noise in class D amplifier

Over-current protection in linear regulators

Impedance matching techiques for multi-band or wideband RF amplifiers and associated amplifier designs

PWM digital amplifier with high-order loop filter

PWM digital amplifier with high-order loop filter

Semiconductor device, power amplifier device and PC card

Temperature compensation for internal inductor resistance

LNA gain adjustment in an RF receiver to compensate for intermodulation interference

Efficient RF amplifier topologies

Receiving amplifier, in particular for television receivers, and use of the receiving amplifier

Systems of miniaturized compatible radio frequency wireless devices

Multi-substrate RF module for wireless communication devices

Neutralization techniques for differential low noise amplifiers

Concurrent triple-band gain amplifier for multi-standard coexist communications

High-frequency power amplifier circuit and electronic part for communication

Low noise amplifier with constant input impedance

Parallel power amplifier apparatus, method, and system

High frequency power amplifier, transmitter and mobile communication terminal using the power amplifier

Non-linear circuit, radio communication device, and non-linear amplification method

Active limiter with integrated sensor

Intelligent low noise design

Global loop integrating modulator

Power amplifying semiconductor integrated circuit device for use in communication equipment

Transconductor circuits

Differential amplifier circuitry formed on semiconductor substrate with rewiring technique

Differential/single-ended input stage

Input system for a variable gain amplifier having class-AB transconductance stages

Resonator matching network

Variable gain amplifier for low voltage applications

Method for predistortion of a signal, and a transmitting device having digital predistortion, in particular for mobile radio

Linearized bias circuit with adaptation

Method for signal processing and a transmitting device with digital predistortion, in particular for mobile radio

DC cancellation circuit

Transceiver with receive path overload protection and method

Use of a thick oxide device as a cascode for a thin oxide transconductance device in MOSFET technology and its application to a power amplifier design

Low noise amplifier and differential amplifier with variable gain mode

Method to track analog gain step magnitudes online during operation of wireless mobile devices

Amplifier circuit with reduced temperature dependence of the gain

Bias control for reducing amplifier power consumption and maintaining linearity

Amplification system capable of reducing DC offset

Controllable amplifier and the use thereof

Low noise amplifier

Variable gain wideband amplifier

Ultra low-frequency response, DC-blocked low-noise amplifier

Electronic circuit device

Multi-band low noise amplifier, multi-band low noise amplifier module, wireless integrated circuit and multi-band RF module

PWM DIGITAL AMPLIFIER WITH HIGH-ORDER LOOP FILTER

Slew rate enhancement circuitry for folded cascode amplifier

Multiple signal intermodulation reduction system

PWM digital amplifier with high-order loop filter

Low noise amplifier for ultra wide band

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

Dual-band power amplifier

Radiofrequency amplifier device, in particular for cellular mobile telephone

Method for transforming output signals of a low-noise amplifier of a wireless transceiver

System-in-package wireless communication device comprising prepackaged power amplifier

System-in-package wireless communication device comprising prepackaged power amplifier

Multi-band power amplifier module for wireless communication devices

Multi-band power amplifier module for wireless communication devices

Multi-band power amplifier module for wireless communications

Multi-band power amplifier module for wireless communication devices

PWM digital amplifier with high-order loop filter

PWM digital amplifier with high-order loop filter

Systems, methods and devices for differential active bias of multi-stage amplifiers

Gain boosting for tuned differential LC circuits

Dc amplifier and semiconductor integrated circuit therefor

Method and system of nonlinear signal processing