Philip B Coan DeceasedSan Diego, CA

7062232, Jun 13, 2006

Dec 11, 2002

10/317295

Philip D. Coan - San Diego CA, US
Harris S. Simon - Poway CA, US
Michael J. Wengler - Carlsbad CA, US

QUALCOMM Incorporated - San Diego CA

H04B 1/02

455101, 455522, 4551271, 455 91

Systems and techniques are disclosed relating to communications. The systems and techniques involve transmitting a signal through a first antenna, receiving feedback related to the signal transmission through the first antenna, selecting between the first antenna and a second antenna as a function of the feedback, and transmitting the signal through the selected antenna. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

8483631, Jul 9, 2013

Sep 10, 2008

12/208266

Philip David Coan - La Jolla CA, US
Paul Joseph Draxler - San Diego CA, US

QUALCOMM Incorporated - San Diego CA

H04B 1/04

4551143, 4551271, 4551151, 455126, 375296, 375297

A method of predistorting a waveform for input to an amplifier includes receiving information associated with the waveform, the information comprising a modulation configuration of the waveform. The method further includes predicting a chain model for the waveform based on the modulation configuration. In addition, the method includes predistorting the waveform for input to the amplifier, based on the chain model, an ideal waveform, and target output power. An apparatus is also provided for predistorting a waveform for input to an amplifier.

2004001, Jan 29, 2004

Jul 25, 2002

10/206551

Philip Coan - San Diego CA, US

H04B001/00

455/083000, 455/078000

Systems and techniques are disclosed relating to a radio with duplexer bypass capability. The radio includes an antenna, a duplexer, a receiver; and a switching circuit configured to switch the antenna between the duplexer and the receiver. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

2004019, Oct 7, 2004

Feb 7, 2003

10/359812

Philip Coan - San Diego CA, US

H04B001/10
H04B007/005
H04B007/01

455/552100, 455/504000, 455/296000

Terminals with multiple radio units employing different IF frequencies for RF to IF frequency downconversion are provided. Each radio unit is operative to process a respective input signal with a respective LO signal to provide a respective IF signal having a desired IF component at an IF frequency selected for that radio unit. The input signal for each radio unit includes RF components at different RF frequencies. The desired IF component for each radio unit corresponds to a downconverted version of one of the RF components in the input signal. The IF frequencies for the radio units are selected such that the desired IF components for these radio unit do not overlap one another in frequency. The IF frequencies may be selected such that, for each radio unit, the undesired IF components fall outside of the IF passband selected for that radio unit and may thus be filtered out.

2010015, Jun 17, 2010

Nov 5, 2009

12/613374

Stanley S. Toncich - San Diego CA, US
Philip D. Coan - San Diego CA, US

QUALCOMM INCORPORATED - San Diego CA

H04B 17/00
H04B 1/16

4552263, 4553431

Exemplary embodiments are directed to reducing jamming caused by radiated fields generated by wireless power transmitters. Exemplary embodiments include detecting a jamming condition of a wireless power receiving device resulting from a radiated field from a wireless power transmitter of a charging device. Such embodiments include synchronizing the wireless power coupling with communication of the wireless power receiving device. Synchronizing wireless power coupling may include wireless power coupling at a first level when the wireless power receiving device is expected to receive a signal on a communication channel. Synchronizing wireless power coupling may further include coupling at a higher rate when the wireless power receiving device is not expected to receive a signal on the communication channel.

2010027, Oct 28, 2010

Apr 27, 2009

12/430753

Aracely W. Forrester - San Diego CA, US
Philip D. Coan - La Jolla CA, US
Paul J. Draxler - San Diego CA, US

QUALCOMM INCORPORATED - San Diego CA

H03F 1/26

330149

Exemplary embodiments of the invention includes an amplifier and a processor that adapts a baseline or previous model of the input-output signal characteristic of the amplifier using metrics of the system, including peak power, peak voltage, average power, root mean square (RMS) voltage, samples of the output signal of the amplifier, etc. In particular, the system comprises an amplifier; a device to measure a metric of the system; a processor to generate a present model of the input-output signal characteristic of the amplifier based on the system metric as determined through a localized sampling window of the output signal; and a predistortion device to predistort the input signal for the amplifier based on the present amplifier model.

2011006, Mar 24, 2011

Sep 24, 2009

12/566479

Aracely Forrester - San Diego CA, US
Philip David Coan - La Jolla CA, US
Paul Draxler - San Diego CA, US
Roberto Rimini - San Diego CA, US
Bruce Judson - San Luis Obispo CA, US
Joseph Patrick Burke - Glenview IL, US

QUALCOMM INCORPORATED - San Diego CA

H04L 27/01

375232

Techniques for correcting for memory effects of a transmitter are described. In an exemplary design, a receiver obtains input samples including a desired signal transmitted by a transmitter having memory effects. The receiver performs nonlinear equalization on the input samples to obtain first equalized samples, performs linear equalization on the input samples to obtain second equalized samples, and determines output samples based on the first and second equalized samples. The nonlinear equalization corrects for the memory effects and nonlinearities of the transmitter and possibly nonlinearities and memory effects of the receiver. The receiver may jointly determine coefficients for both linear and nonlinear equalization based on an adaptive algorithm. The receiver processes (e.g., demodulates and decodes) the output samples to recover data sent in the desired signal by the transmitter.

2012000, Jan 5, 2012

Jun 30, 2010

12/827952

Philip David Coan - La Jolla CA, US
Paul J. Draxler - San Diego CA, US

QUALCOMM INCORPORATED - San Diego CA

H04L 25/03
H04B 1/10
H04B 1/04

375297, 4551143, 455296

Exemplary embodiments of the invention include a transmitter system configured to predistort an input signal to generate a target output signal. An exemplary transmitter system includes a forward path including a predistortion device coupled with an amplifier, the forward path configured for predistorting an input signal to the predistortion device in response to a phase error compensation signal and an amplitude error compensation signal in order to generate a desired output signal for the output signal of the amplifier, and a feedback path including a processor configured for generating the phase error compensation signal and the amplitude error compensation signal based on a comparison of the input signal with phase and amplitude information of the output signal of the amplifier, wherein the phase and amplitude information of the amplifier are transmitted to the processor on a single path of the feedback path. Other methods and apparatuses are also presented herein.