WO2003045023A8 - Time reversal communication system - Google Patents

Time reversal communication system

Info

Publication number
WO2003045023A8
WO2003045023A8 PCT/US2002/036367 US0236367W WO03045023A8 WO 2003045023 A8 WO2003045023 A8 WO 2003045023A8 US 0236367 W US0236367 W US 0236367W WO 03045023 A8 WO03045023 A8 WO 03045023A8
Authority
WO
WIPO (PCT)
Prior art keywords
communication system
time reversal
signal
reversal communication
channel medium
Prior art date
Application number
PCT/US2002/036367
Other languages
French (fr)
Other versions
WO2003045023A1 (en
Inventor
James V Candy
Alan W Meyer
Original Assignee
Univ California
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ California filed Critical Univ California
Priority to AU2002343682A priority Critical patent/AU2002343682A1/en
Publication of WO2003045023A1 publication Critical patent/WO2003045023A1/en
Publication of WO2003045023A8 publication Critical patent/WO2003045023A8/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • H04L25/0248—Eigen-space methods

Abstract

A system of transmitting a signal through a channel medium comprises digitizing the signal, time-reversing the digitized signal, and transmitting the signal through the channel medium. The channel medium may be air, earth, water, tissue, metal, and/or non-metal.
PCT/US2002/036367 2001-11-15 2002-11-12 Time reversal communication system WO2003045023A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002343682A AU2002343682A1 (en) 2001-11-15 2002-11-12 Time reversal communication system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US33323101P 2001-11-15 2001-11-15
US60/333,231 2001-11-15
US10/289,774 2002-11-06
US10/289,774 US7460605B2 (en) 2001-11-15 2002-11-06 Time reversal communication system

Publications (2)

Publication Number Publication Date
WO2003045023A1 WO2003045023A1 (en) 2003-05-30
WO2003045023A8 true WO2003045023A8 (en) 2004-12-23

Family

ID=26965835

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/036367 WO2003045023A1 (en) 2001-11-15 2002-11-12 Time reversal communication system

Country Status (3)

Country Link
US (1) US7460605B2 (en)
AU (1) AU2002343682A1 (en)
WO (1) WO2003045023A1 (en)

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US10014982B1 (en) 2015-01-22 2018-07-03 Origin Wireless, Inc. Time-reversal technologies for hybrid wireless networks
US9559874B2 (en) 2013-08-16 2017-01-31 Origin Wireless, Inc. Multiuser time-reversal division multiple access uplink system with parallel interference cancellation
US9686054B2 (en) 2014-07-17 2017-06-20 Origin Wireless, Inc. Joint waveform design and interference pre-cancellation for time-reversal systems
US9882675B2 (en) 2013-08-16 2018-01-30 Origin Wireless, Inc. Time-reversal wireless systems having asymmetric architecture
US9883511B1 (en) 2012-12-05 2018-01-30 Origin Wireless, Inc. Waveform design for time-reversal systems
US9887864B1 (en) 2014-03-10 2018-02-06 Origin Wireless, Inc. Methods, devices and systems of heterogeneous time-reversal paradigm enabling direct connectivity in internet of things
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US11025475B2 (en) 2012-12-05 2021-06-01 Origin Wireless, Inc. Method, apparatus, server, and systems of time-reversal technology
US9226304B2 (en) 2014-03-10 2015-12-29 Origin Wireless, Inc. Time-reversal wireless paradigm for internet of things
US10440705B2 (en) 2012-12-05 2019-10-08 Origin Wireless, Inc. Method, apparatus, server, and systems of time-reversal technology
US10609711B1 (en) 2015-03-05 2020-03-31 Origin Wireless, Inc. Time-reversal scalability for high network densification
US10291460B2 (en) 2012-12-05 2019-05-14 Origin Wireless, Inc. Method, apparatus, and system for wireless motion monitoring
US9407306B2 (en) 2014-04-25 2016-08-02 Origin Wireless, Inc. Quadrature amplitude modulation for time-reversal systems
US10447094B2 (en) 2016-05-03 2019-10-15 Origin Wireless, Inc. Method, system, and apparatus for wireless power transmission based on power waveforming
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CN102461057B (en) * 2009-05-07 2015-04-08 法国电信公司 Pre-equalizing method using FDD time reversal
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US8498658B2 (en) * 2009-09-03 2013-07-30 Ziva Corporation Techniques and systems for providing data over power in communications based on time reversal
JP2013519455A (en) 2010-02-12 2013-05-30 デルフィヌス メディカル テクノロジーズ，インコーポレイテッド How to characterize a patient's tissue
WO2011100691A1 (en) 2010-02-12 2011-08-18 Delphinus Medical Technologies, Inc. Method of characterizing the pathological response of tissue to a treatmant plan
CN102005828B (en) * 2010-11-30 2012-09-12 电子科技大学 Wireless sensor network node wireless charging system and method based on time reversal
WO2012151316A1 (en) * 2011-05-02 2012-11-08 Ziva Corporation Distributed co-operating nodes using time reversal
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US10484208B2 (en) 2018-02-23 2019-11-19 Wistron Neweb Corporation Anomalies detection system and method for structure
CN108880004B (en) * 2018-06-25 2020-06-12 华南理工大学 Time reversal wireless energy transmission system and method with low-speed sampling compensation
US11108429B1 (en) * 2020-06-01 2021-08-31 Raytheon Company Covert acoustic communications through solid propagation channels using spread spectrum coding and adaptive channel pre-distortion
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Also Published As

Publication number Publication date
US20030138053A1 (en) 2003-07-24
WO2003045023A1 (en) 2003-05-30
AU2002343682A1 (en) 2003-06-10
US7460605B2 (en) 2008-12-02

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