BACKGROUND A transceiver both transmits and receives signals. Both the transmitter and
the receiver can have signal processing impairments. Impairments can include path …

The invention provides a type-based method to compensate for distortions in circuits
operating on a plurality of input modulated signals to form one or more output modulated …

The invention relates to a method and circuit for linearizing amplifiers and other nonlinear
circuits for multi-carrier signals. An output signal from the amplifier is sampled, and a …

Abstract Systems and methods are described to concurrently utilize actively used spectrum
for new TDD or FDD networks, and also for enabling Distributed-Input Distributed Output …

Communication systems are known to Support wireless and wire lined communications
between wireless and/or wire lined communication devices. Such communication systems …

(57) ABSTRACT A transmission module is provided that includes a transmitter, a loopback
receiver, and a QEC controller. In a first state, the QEC controller calibrates the loopback …

A transmission module is provided that includes a transmitter, a loopback receiver, and a
QEC controller. The QEC controller identifies quadrature imbalance in the transmitter based …

The disclosure can provide methods and systems for autocalibrating a transceiver. The
method can include upconverting a bandpass input signal by mixing the bandpass input …

(57) ABSTRACT A method for estimating transceiver non-idealities is dis closed. In one
aspect, the method comprises generating a preamble comprising multiple sets of known …

The need in the art is addressed by the linearizer and method of the present invention. In a
most general embodi ment, the inventive linearizer includes a characterizer coupled to an …