Robert E. Stengel

Method and apparatus for in-channel interference cancellation

Systems and methods for generating injection-locked, frequency-multiplied output signals

Method and apparatus for transmitting a signal by a radio frequency identification reader

Method and apparatus for single port modulation using a fractional-N modulator

METHOD AND APPARATUS FOR A SYNTHESIZER ARCHITECTURE

Method and apparatus for a multi-antenna device that uses a single baseband filter and analog-to-digital converter

Method and apparatus for fast frequency locking in a closed loop based frequency synthesizer

Device and method for phase compensation

Method and apparatus for processing radio frequency signals

Spectrally constrained local oscillator switching

Method and system for managing digital to time conversion

Direct digital synthesizer with variable reference for improved spurious performance

Clock data recovery systems and methods for direct digital synthesizers

Amplifier containing programmable impedance for harmonic termination

Method for subscribing to a wireless service

Digital-to-time converter using cycle selection windowing

Direct digital synthesizer with variable reference for improved spurious performance

Delay line based multiple frequency generator circuits for CDMA processing

Method and apparatus for vector signal processing

Delay locked loop synthesizer with multiple outputs and digital modulation

Cascaded delay locked loop circuit

System and method for providing an input to a distributed power amplifying system

Reconfigurable processing circuit including a delay locked loop multiple frequency generator for generating a plurality of clock signals which are configured in frequency by a control processor

RF amplifier with enhanced efficiency

Method and apparatus for a digital-to-phase converter

System and method for introducing dither for reducing spurs in digital-to-time converter direct digital synthesis

Digital pulse width modulation

Dynamically matched mixer system with improved in-phase and quadrature (I/Q) balance and second order intercept point (IP2) performance

Adjustable frequency delay-locked loop

Programmable skew clock signal generator selecting one of a plurality of delayed reference clock signals in response to a phase accumulator output

Configurable delay line circuit

Method and apparatus for digital frequency synthesis

Multiple user reconfigurable CDMA processor

Multi-band antennas