APPARATUS, METHOD AND COMPUTER PROGRAM

METHODS AND DEVICES FOR FREQUENCY MODULATION REDUCTION FOR POLAR TRANSMITTERS

SELF-CALIBRATING CORRELATING RECEIVERS

Apparatus and method for correcting communication frequency of electronic detonator

HD3 CANCELLATION TECHNIQUE IN RF DACS AND DIGITAL TRANSMITTERS

FREQUENCY OFFSET DETERMINATION FOR RADIO DEVICES

METHOD FOR DEMODULATING A RF SIGNAL IN THE PRESENCE OF INBAND HARMONIC SPURS

CIRCUIT FOR CORRECTING AMPLITUDE IMBALANCE AND PHASE IMBALANCE

In-phase/quadrature signal filtering in wireless communication

Carrier and sampling frequency offset estimation for RF communication with crystal-less nodes

COMMUNICATION APPARATUS AND COMMUNICATION METHOD

Frequency offset compensation at reflector during frequency compensation interval

Transmitter complex- and real-valued in-phase and quadrature mismatch pre-compensators

Quadrature error correction for radio transceivers

Communication device

Electronic device for performing carrier aggregation using plurality of carrier frequencies via switch and operating method thereof

Transmitter complex- and real-valued in-phase and quadrature mismatch pre-compensators

I/Q imbalance compensation

Phase/frequency tracking transceiver

Method and apparatus for managing global chip power on a multicore system on chip

Common phase error and/or inter-carrier interference

Frequency offset estimation

Information processing device, method, and program for IQ balance correction

Method and apparatus for managing global chip power on a multicore system on chip

Bluetooth transmitter with stable modulation index

Phase error reduction in a receiver

Synchronization between an object and a reader contactlessly communicating by active load modulation

Phase error reduction in a receiver

Non-quadrature local oscillator mixing and multi-decade coverage

Synchronizing a digital frequency shift

Methods and apparatus for wideband and fast chirp generation for radar systems

Electronic device for performing carrier aggregation using plurality of carrier frequencies via switch and operating method thereof

CIRCUITS AND SYSTEMS FOR WIDEBAND QUADRATURE SIGNAL GENERATION

Measurement apparatus for measurement of an RF signal

Information processing device, method, and program for IQ balance correction

Transformer feed-back quadrature voltage controlled oscillator for correcting dynamic phase error and communication apparatus using the same

Method and apparatus for managing global chip power on a multicore system on chip

Method and apparatus for bidirectional communication between measuring devices and a data collector

Common phase error and/or inter-carrier interference

Clock and data recovery having shared clock generator

Circuits and systems for wideband quadrature signal generation

Quadrature transmitter, wireless communication unit, and method for spur suppression

Local oscillator feedthrough signal correction apparatus and method, and microprocessor control unit

Apparatus and method for setting a local oscillator duty ratio based on an image distortion level

Receiving circuit capable of performing I/Q mismatch calibration based on external oscillating signal

Processing a noisy analogue signal

Transmitter with compensating mechanism of pulling effect

System and apparatus and associated methods for multiple channel signal generating and analyzing with wide bandwidth

Method and apparatus for generating phase shift control signals

Phase noise tracking and reduction

Millimeter-wave modulation device

Frequency-converting sensor and system for providing a radio frequency signal parameter

Method for estimating frequency offset, apparatus and system

Communication unit and method for determining and/or compensating for frequency dependent quadrature mismatch

Method, apparatus and computer program for determining an interpolated complex valued sample

Phase interpolator

Device and method for frequency offset estimation

Phase noise tracking and reduction

Method and device for data compression, transmission, and decompression

Processing a noisy analogue signal

Method and device for adjusting carrier frequency of multiple-input multiple output microwave device

High-frequency signal processing device and wireless communication system

Full band cable receiver

Receiver, transmitter, feedback device, transceiver and signal processing method

Communication system with frequency synthesis mechanism and method of operation thereof

Digital coherent receiving apparatus

Multi-tap IQ imbalance estimation and correction circuit and method

Compensation of a transmitter distortion

Transceiver using technique for improvement of phase noise and switching of phase lock loop (PLL)

Mechanism for reducing time away from packet switched operation in a single radio solution

Methods and receiver for positioning of clock related spurious signals

Highly linear-gain oscillator

Estimation of intentional phase shift in a calibration apparatus

Carrier frequency offset compensation in beamforming systems

Full band cable receiver

Imbalance compensator for correcting mismatch between in-phase branch and quadrature branch, and related imbalance compensation method and direct conversion receiving apparatus thereof

High-frequency signal processing device and wireless communication system

Spur mitigation for radio frequency receivers utilizing a free-running crystal

System and method for frequency offsetting of information communicated in MIMO-based wireless networks

System and method for frequency offsetting of information communicated in MIMO-based wireless networks

System and method for frequency offsetting of information communicated in MIMO-based wireless networks

D.C. offset estimation

Receiver, transmitter, feedback device, transceiver and signal processing method

Calibration of a receiver for channel equalization using a transmitter

Recursive frequency estimation

Calibration of synthesizer phase using reference harmonic

Estimation of intentional phase shift in a calibration apparatus

Automatic frequency offset compensation in zero-intermediate frequency receivers using minimum-shift keying (MSK) signaling

In-band generation of low-frequency periodic signaling

Method and apparatus to improve acquisition of a quadrature amplitude modulated (QAM) signal having a frequency offset

RADIO DATA SYSTEM MONOPHONIC DEMODULATION

Digital correction of analog polyphase filters

Method for tuning a digital compensation filter within a transmitter, and associated digital compensation filter

Apparatus and method thereof for clock and data recovery of N-PAM encoded signals using a conventional 2-PAM CDR circuit

Method and apparatus for increasing the channel capacity of a bandwidth limited communications path

Apparatus and method for phase synchronization in radio frequency transmitters

Receiver apparatus, image signal attenuating method, and mismatch compensating method

DEVICES AND METHODS IMPLEMENTING FREQUENCY OFFSET DETERMINATION FOR FSK RECEIVERS

MEASUREMENT APPARATUS, MEASUREMENT METHOD, TEST APPARATUS AND RECORDING MEDIUM

MEASUREMENT APPARATUS, MEASUREMENT METHOD AND RECORDING MEDIUM

IC COMPONENT BENCHMARKING WITHOUT EXTERNAL REFERENCES

Calibration signal generator

D.C. Offset Estimation

DIGITAL PHASE LOCKED LOOP WITH DITHERING

Method and device for phase recovery and communication system comprising such device

I/Q impairment calibration using a spectrum analyzer

Signal processing circuit and method with frequency up- and down-conversion

I/Q IMBALANCE ESTIMATION AND COMPENSATION FOR A TRANSMITTER AND A RECEIVER

Modulation apparatus, test apparatus and correction method

Digital coherent receiving apparatus

Mixing waveforms

Transmitter with delay mismatch compensation

Digital phase locked loop with dithering

HIGH SPEED CONTACTLESS COMMUNICATION

System and method for I/Q imbalance compensation

Wideband digitally-controlled oscillator (DCO) and digital broadcasting receiver having the same

METHOD FOR CALCULATING CFO AND I/Q IMBALANCE COMPENSATION COEFFICIENTS, COMPENSATION METHOD USING THE SAME, AND METHOD FOR TRANSMITTING PILOT SIGNAL

Method for tuning a digital compensation filter within a transmitter, and associated digital compensation filter and associated calibration circuit

METHOD AND APPARATUS FOR INCREASING THE CHANNEL CAPACITY OF A BANDWIDTH LIMITED COMMUNICATIONS PATH.

Measurement apparatus and computer readable medium storing program for measuring error of a quadrature demodulator or quadrature modulator

Receiver for high-speed wireless communication system and control method thereof

Calibration method for non-ideal transceivers

Simultaneous multiple signal reception and transmission using frequency multiplexing and shared processing

Modulation device and demodulation device

Offset correction device and method

I/Q calibration of transmit and receive paths in OFDM FDD communication systems

Systems and methods for DC component recovery in a zero-IF radio receiver

Method and system for calibrating an analogue I/Q-modulator of a transmitter

In-phase and quadrature-phase signal amplitude and phase calibration

Calibrated quadrature generation for multi-GHz receiver

Method and system for compensating for using a transmitter to calibrate a receiver for channel equalization

Circuit and method of calibrating direct current offset in wireless communication device

I/Q IMBALANCE ESTIMATION USING SYNCHRONIZATION SIGNALS IN LTE SYSTEMS

METHOD AND SYSTEM FOR CHARACTERIZATION OF FILTER TRANSFER FUNCTIONS IN OFDM SYSTEMS

Method of suppressing carrier leak in OFDM transmission and radio transmitter using same method

System and method for in-phase/quadrature-phase (I/Q) mismatch measurement and compensation

System and method for frequency offsetting of information communicated in MIMO-based wireless networks

I/Q imbalance estimation and correction in a communication system

I-Q mismatch calibration and method

Balancing amplitude and phase

Digital communication using an inexpensive reference crystal

Quadrature modulator with phase controller apparatus and error detector

APPARATUS, INTEGRATED CIRCUIT, AND METHOD OF COMPENSATING IQ PHASE MISMATCH

Quadrature alignment in communications receivers

Systems and methods for DQPSK modulator control using selectively inserted dither tone

MULTI CARRIER TRANSMISSION DEVICE, MULTI CARRIER RECEPTION DEVICE, AND COMMUNICATION METHOD

Modified dual band direct conversion architecture that allows extensive digital calibration

Method and system for utilizing a single PLL to clock an array of DDFS for multi-protocol applications

IQ imbalance image suppression

Digital phase locked loop with integer channel mitigation

Interpolative all-digital phase locked loop

Digital phase locked loop with gear shifting

Digital phase locked loop with dithering

System and method for generating signals with a preselected frequency relationship in two steps

CALIBRATION APPARATUS AND METHOD FOR QUADRATURE MODULATION SYSTEM

Receiver and wireless communication apparatus

Method, a program and a module to estimate a doppler maximum frequency and an oscillator frequency offset, receiver including the module

Efficient and flexible numerical controlled oscillators for navigational receivers

Fast frequency range selection in ranged controlled oscillators

Low jitter clock recovery from a digital baseband data signal transmitted over a wireless medium

IQ-Imbalance

Apparatus for measuring in-phase and quadrature (IQ) imbalance

High performance station

Method for compensating transmission carrier leakage and transceiving circuit embodying the same

Receiving apparatus, receiving method, and program

Method and system for compensating for using a transmitter to calibrate a receiver for channel equalization

Modulation circuit having DC offset level control circuit

Monitoring differential phase-shifted keying demodulation

Compensation for gain imbalance, phase imbalance and DC offsets in a transmitter

Method and System for Estimating Signal Error in a Communication System

Method for adjusting an electronic system

System for calibrating at least one quadrature modulator and operating method therefor

Communicating apparatus, method of calculating set value of orthogonal error compensation and orthogonal error compensation program

Distortion compensating apparatus

Optimization for an IQ modulator

Compensation of I-Q imbalance in digital transceivers

System and method for I/Q imbalance compensation

Method and device for the compensation of signal errors in IQ-modulators

Method for self-calibration in a mobile receiver

Wireless communication method using OFDM and OFDM transmitter and receiver thereof

Frequency calibration of wireless telecommunication device

Frequency adjustment of wireless telecommunication device

Apparatus and method for frequency calibration between two radios

Calibration apparatus and method for quadrature modulation system

Offset compensation device

Systems and methods to provide wideband magnitude and phase imbalance calibration and compensation in quadrature receivers

Method and device for estimating IQ imbalance

Distortion compensation in wireless digital communication

Quadrature alignment in communications receivers

Quadrature receiver with correction engine, coefficient controller and adaptation engine

Frequency control device and information reproduction apparatus

Apparatus for compensating for phase mismatch in QPSK demodulator

Wireless communication unit and linearised transmitter circuit therefor

Phase estimation method in a digital and phase locked loop communication system

Apparatus and method for optimally compensating for imbalance between in-phase and quadrature-phase in a zero-IF OFDM receiver

Modified dual band direct conversion architecture that allows extensive digital calibration

Interference estimation in the presence of frequency errors

Correction of quadrature error

Orthogonal signal generation using vector spreading and combining

Orthogonal modulation device, method, program, recording medium, and modulation device

Methods and apparatus for calibrating oscillators in a receiver

System and method for using programmable frequency offsets in a data network

Inphase/quadrature phase imbalance compensation

Quadrature voltage controlled oscillator for global positioning system frequencies

Device, system and method of I/Q mismatch correction

Method and apparatus for quadrature modulation techical field

Phase/gain imbalance estimation or compensation

Method for receiving an OFDM signal

Transmitter signal strength indicator

Apparatus and method for integration of tuner functions in a digital receiver

Ultra-fast hopping frequency synthesizer for multi-band transmission standards

IF FSK receiver

Satellite receiving method and system

Quadrature modulation system

Hardware efficient RF transceiver I/Q imbalance compensation based upon taylor approximation

Balancing amplitude and phase

Error adjustment for multi-antenna transmitter

Phase calibrating apparatus and method thereof

Interface apparatus and method for data recovery and synchronization

Orthogonal normalization for a radio frequency integrated circuit

Method and system for estimating and compensating IQ imbalance

METHOD AND APPARATUS OF IQ MISMATCH CALIBRATION

I/Q mismatch compensation in an OFDM receiver in presence of frequency offset

Method and apparatus for acquiring a frequency without a reference clock

Signal processing circuit and quadrature demodulation apparatus and method of estimating error thereof

Compensation of mismatch between quadrature paths

Coherent adaptive calibration system and method

System and method for an improved quadrature upconverter for I/Q modulation using intermediate frequency carriers

Apparatus and method for compensating I/Q imbalance based on gain-controlled reference channel in orthogonal frequency division multiplex

Adaptive phase controller, method of controlling a phase and transmitter employing the same

Method and apparatus for compensating I/Q imbalance by using variable loop gain in quadrature demodulator

Staggered AGC with digitally controlled VGA

I/Q demodulation circuit

Method and apparatus for I/Q mismatch calibration in a receiver

Communication terminal with low carrier feedthrough and communication system using such a terminal

Semiconductor integrated circuit for communication

Device for compensating for a mismatch of a transmitter and a method of compensating for the mismatch

Receiver for correcting frequency dependent I/Q phase error

Frequency difference measuring method

Quadrature signal imbalance estimation

High-speed digital transmitter for wireless communication systems

Wideband distributed power amplifier utilizing metamaterial transmission line conception with impedance transformation

Closed loop calibration by frequency separation

Systems, methods, and devices for frequency calibration of transmitters

Quadrature combining and adjusting