218906 ⎘
Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated using a feedback loop containing mixers or demodulators
CALIBRATION CIRCUIT AND METHOD, PHASE-SHIFT CIRCUIT, RADIO-FREQUENCY TRANSCEIVER CIRCUIT, RADAR AND DEVICE
#2Systems and methods for asynchronous re-modulation with adaptive I/Q adjustment
#3Systems and methods for asynchronous re-modulation with adaptive I/Q adjustment
#4Systems and methods for asynchronous re-modulation with adaptive I/Q adjustment
#5Systems and methods for asynchronous re-modulation with adaptive I/Q adjustment
#6FBR DC vector offset removal using LO phase switching
#7Self-calibrating direct conversion transmitter with converting/steering device
#8SPREAD-PERIOD CLOCK GENERATOR
#9Quadrature modulator and calibration method
#10Transmitter and carrier leak detection method
#11Apparatus and method for compensating carrier feedthrough in quadrature modulation system
#12Method and system for adjusting the amplitude and phase characteristics of real and imaginary signal components of complex signals processed by an analog radio transmitter
#13Electrical device comprising analog frequency conversion circuitry and method for deriving characteristics thereof
#14Self-calibrating direct conversion transmitter with converting/steering device
#15Method for adjusting an electronic system
#16Optimization for an IQ modulator
#17Error calculation circuit for mixer
#18DC offset correction device and method
#19Offset compensation device
#20Electrical device comprising analog frequency conversion circuitry and method for deriving characteristics thereof
#21Quadrature modulator and calibration method
#22Digital sideband suppression for radio frequency (RF) modulators
#23Distortion compensation quadrature modulator and radio transmitter
#24Radio frequency transmitter and method of operating a radio frequency transmitter
#25System and method for calibrating electronic circuitry
#26Radio transmitter testing method, radio transmitter and base station
#27Method and apparatus for I/Q imbalance calibration of a transmitter system
#28On-signal quadrature modulator calibration
#29Device for compensating for a mismatch of a transmitter and a method of compensating for the mismatch