Bandwidth enhancement for envelope elimination and restoration transmission systems

RJ Dwyer - US Patent 7,620,377, 2009 - Google Patents
Abstract Systems and methods for increasing bandwidth capability of an envelope
elimination and restoration (EER) transmitter. A frequency response of a power supply …

Outphasing transmitter systems and methods

AA Mirzaei, H Darabi - US Patent 9,742,367, 2017 - Google Patents
US9742367B2 - Outphasing transmitter systems and methods - Google Patents
US9742367B2 - Outphasing transmitter systems and methods - Google Patents Outphasing …

Apparatus and methods for wide bandwidth analog-to-digital conversion of quadrature receive signals

A Montalvo, RP Schubert - US Patent 9,577,689, 2017 - Google Patents
Apparatus and methods for analog-to-digital conversion of quadrature receive signals are
provided herein. In certain implementations, a transceiver system includes at least a first pair …

Methods and apparatus for suppressing strong-signal interference in low-IF receivers

S Mattisson, PW Dent - US Patent 8,055,234, 2011 - Google Patents
Circuits and methods are disclosed for compensating for received signal distortion caused
by non-linearities in the receiver circuitry. An exemplary receiver circuit includes a distortion …

Harmonic rejective passive up converter

SV Vora, JD Dunworth - US Patent 9,071,197, 2015 - Google Patents
Methods and apparatuses are presented for harmonic reject upconverting a baseband
signal using at least one quadrature passive upconversion mixer. In some embodiments, an …

Systems and methods for spurious emission cancellation

B Xu, C Tang, M Rahman - US Patent 8,204,456, 2012 - Google Patents
In accordance with some embodiments of the present disclosure, a method may include
digitally pre-distorting a digital baseband signal with an opposite phase of a C-IM3 distortion …

Circuits and method to enable efficient generation of direct digital synthesizer based waveforms of arbitrary bandwidth

HB Marr, D Thompson, J Karl - US Patent 9,385,831, 2016 - Google Patents
Embodiments of a system and method for providing efficient wideband inverse
channelization for direct digital synthesizer based jamming techniques are generally …

Transpositional modulation and demodulation

HC Woodsum - US Patent 10,594,539, 2020 - Google Patents
Methods, systems, and apparatus, including computer pro grams encoded on a computer
storage medium, for modu lating and demodulating transpositional modulated (TM) signals …

Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments

DF Sorrells, MJ Bultman, RW Cook, RC Looke… - US Patent …, 2005 - Google Patents
First worldwide family litigation filed litigation Critical https://patents. darts-ip. com/? family=
34109339&utm_source= google_patent&utm_medium= platform_link&utm_campaign …

Input signal combiner system and method

C Wolter, D Bonicatto, J Glende - US Patent 8,194,789, 2012 - Google Patents
Disclosed are various embodiments of an input signal combiner. In one embodiment, a
receive stage receives a multi-phase waveform and separates the multi-phase waveform …