A communication system comprising a multi-protocol, multi-bearer sub-system is described
herein. The sub-system is a universal platform module that can transmit and receive one or …

(57) ABSTRACT A DC offset estimator and removal circuit removes the DC offsets for each
of the I and Q signal components in a received signal. A gain imbalance estimator and …

Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by
aliasing the EM signal are described herein. Briefly stated, such methods, systems, and …

Methods, systems, and apparatuses, and combinations and sub-combinations thereof, for
down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in …

A balanced transmitter up-converts I and Q baseband signals directly from baseband-to-RF.
The up-conversion process is sufficiently linear that no IF processing is required, even in …

Methods and apparatuses for reducing DC offsets in a communication system are described.
In a first aspect, a feedback loop circuit reduces DC offset in a wireless local area network …

Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by
aliasing the EM signal, and applications thereof are described herein. Reducing or …

A method and system is described wherein an information signals is gated at a frequency
that is a sub-harmonic of the frequency of the desired output signal. In the modulation …

Frequency translation and applications of the same are described herein, including RF
modem and wireless local area network (WLAN) applications. In embodiments, the WLAN …

A method and system is described wherein a signal with a lower frequency is up-converted
to a higher frequency. In one embodiment, the higher frequency signal is used as a stable …