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MX2008011690A - Modulador sin portadura que utiliza filtros de dientes de sierra. - Google Patents

Modulador sin portadura que utiliza filtros de dientes de sierra.

Info

Publication number
MX2008011690A
MX2008011690A MX2008011690A MX2008011690A MX2008011690A MX 2008011690 A MX2008011690 A MX 2008011690A MX 2008011690 A MX2008011690 A MX 2008011690A MX 2008011690 A MX2008011690 A MX 2008011690A MX 2008011690 A MX2008011690 A MX 2008011690A
Authority
MX
Mexico
Prior art keywords
carrier less
modulation
saw filters
filters
modulator
Prior art date
Application number
MX2008011690A
Other languages
English (en)
Inventor
Joseph Bobier
Nadeem Khan
Original Assignee
Xg Technology Inc
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 Xg Technology Inc filed Critical Xg Technology Inc
Publication of MX2008011690A publication Critical patent/MX2008011690A/es

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/42—Angle modulation by means of electromechanical devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H04B1/71635—Transmitter aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmitters (AREA)

Abstract

En esta descripción, se describe un sistema y método de modulación sin portadora que utiliza filtros SAW como un modulador, además de su uso convencional como filtros para limitar en banda un sistema de UWB. Este sistema y método está diseñado para ser empleado con cualquier tipo de modulación de ciclo de entero, de banda ultra-ancha o de impulso, y de manera particular está diseñado para trabajar con un método de modulación llamada, xMAx. Esta técnica explota la respuesta de impulso del filtro SAW, produciendo un sistema de radio de impulso sin portadora con un ancho de banda limitado, un bajo promedio de energía, pero una alta energía pico.
MX2008011690A 2006-03-13 2007-03-13 Modulador sin portadura que utiliza filtros de dientes de sierra. MX2008011690A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US78171806P 2006-03-13 2006-03-13
US11/716,279 US8081707B2 (en) 2006-03-13 2007-03-09 Carrier less modulator using saw filters
PCT/US2007/006288 WO2008079155A1 (en) 2006-03-13 2007-03-13 Carrier less modulator using saw filters

Publications (1)

Publication Number Publication Date
MX2008011690A true MX2008011690A (es) 2008-09-24

Family

ID=38478361

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2008011690A MX2008011690A (es) 2006-03-13 2007-03-13 Modulador sin portadura que utiliza filtros de dientes de sierra.

Country Status (6)

Country Link
US (1) US8081707B2 (es)
EP (1) EP2025011A4 (es)
AU (1) AU2007338907A1 (es)
CA (1) CA2643304A1 (es)
MX (1) MX2008011690A (es)
WO (1) WO2008079155A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1909352B1 (en) * 2006-10-05 2013-05-15 Fujikura Ltd. Reflection-type bandpass filter
JP2008098705A (ja) * 2006-10-05 2008-04-24 Fujikura Ltd 反射型バンドパスフィルター
EP1909354A1 (en) * 2006-10-05 2008-04-09 Fujikura Ltd. Reflection-type bandpass filter
JP2008098702A (ja) * 2006-10-05 2008-04-24 Fujikura Ltd 反射型バンドパスフィルター
JP2008098701A (ja) * 2006-10-05 2008-04-24 Fujikura Ltd 反射型バンドパスフィルター
US8872595B2 (en) * 2012-09-11 2014-10-28 The United States Of America As Represented By The Secretary Of The Army Binary bi-phase shift modulator
CN105306047B (zh) * 2015-10-27 2018-08-10 中国电子科技集团公司第四十一研究所 一种同步时钟参考源及同步时钟参考产生方法

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JPS6040216B2 (ja) * 1977-03-31 1985-09-10 株式会社村田製作所 テレビジヨンチユ−ナ
US5615229A (en) * 1993-07-02 1997-03-25 Phonic Ear, Incorporated Short range inductively coupled communication system employing time variant modulation
DE19703079A1 (de) * 1997-01-29 1998-07-30 Bosch Gmbh Robert Verfahren zur Aufbereitung von in einer Zwischenfrequenzlage angelieferten Bandpaßsignalen
US6505032B1 (en) * 2000-05-26 2003-01-07 Xtremespectrum, Inc. Carrierless ultra wideband wireless signals for conveying application data
FR2783654B1 (fr) * 1998-09-23 2006-07-28 Sagem Emetteur-recepteur bibande a double dispositif de rayonnement
US6535545B1 (en) * 1999-10-15 2003-03-18 Rf Waves Ltd. RF modem utilizing saw resonator and correlator and communications transceiver constructed therefrom
JP2003522453A (ja) * 2000-02-02 2003-07-22 ラトガーズ・ザ・ステート・ユニヴァーシティ・オブ・ニュージャージー プログラム可能な表面弾性波（ｓａｗ）フィルタ
US20040151237A1 (en) 2000-05-31 2004-08-05 Bitrage, Inc. Satellite communications system
US6825794B2 (en) * 2000-06-02 2004-11-30 Research In Motion Limited Wireless communication system using surface acoustic wave (SAW) second harmonic techniques
US7050419B2 (en) * 2001-02-23 2006-05-23 Terayon Communicaion Systems, Inc. Head end receiver for digital data delivery systems using mixed mode SCDMA and TDMA multiplexing
US7095798B2 (en) * 2001-08-02 2006-08-22 Powerwave Technologies, Inc. System and method for post filtering peak power reduction in multi-carrier communications systems
JP2003087149A (ja) * 2001-09-14 2003-03-20 Matsushita Electric Ind Co Ltd 高周波複合スイッチモジュール
US7609612B2 (en) * 2002-07-12 2009-10-27 Texas Instruments Incorporated Multi-carrier transmitter for ultra-wideband (UWB) systems
WO2004068725A2 (en) 2003-01-29 2004-08-12 Xg Technology, Llc Modulation compression method for the radio frequency transmission of high speed data
US7003047B2 (en) 2003-06-24 2006-02-21 Xg Technology, Llc Tri-state integer cycle modulation
US6930546B2 (en) * 2003-09-26 2005-08-16 International Business Machines Corporation Bypass switch topology for low-noise amplifiers
US7391561B2 (en) * 2005-07-29 2008-06-24 Aculight Corporation Fiber- or rod-based optical source featuring a large-core, rare-earth-doped photonic-crystal device for generation of high-power pulsed radiation and method
US7782975B2 (en) * 2006-09-05 2010-08-24 Xg Technology, Inc. Pulse train carrier-less modulator using SAW filters
US7443337B2 (en) * 2006-09-25 2008-10-28 Aai Corporation Synthesizing arbitrary waveforms using convolution processors

Also Published As

Publication number Publication date
US8081707B2 (en) 2011-12-20
EP2025011A4 (en) 2012-10-17
CA2643304A1 (en) 2008-07-03
US20070210880A1 (en) 2007-09-13
WO2008079155A1 (en) 2008-07-03
EP2025011A1 (en) 2009-02-18
AU2007338907A1 (en) 2008-07-03

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Legal Events

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FA Abandonment or withdrawal