WO2010038166A3 - Direct modulation and demodulation with acoustic wave devices - Google Patents

Direct modulation and demodulation with acoustic wave devices Download PDF

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Publication number
WO2010038166A3
WO2010038166A3 PCT/IB2009/054104 IB2009054104W WO2010038166A3 WO 2010038166 A3 WO2010038166 A3 WO 2010038166A3 IB 2009054104 W IB2009054104 W IB 2009054104W WO 2010038166 A3 WO2010038166 A3 WO 2010038166A3
Authority
WO
WIPO (PCT)
Prior art keywords
acoustic wave
demodulation
wave devices
direct modulation
crystal
Prior art date
Application number
PCT/IB2009/054104
Other languages
French (fr)
Other versions
WO2010038166A2 (en
Inventor
Michiel Van Elzakker
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2010038166A2 publication Critical patent/WO2010038166A2/en
Publication of WO2010038166A3 publication Critical patent/WO2010038166A3/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/46—Modulators with mechanically-driven or acoustically-driven parts

Landscapes

  • Transceivers (AREA)
  • Transmitters (AREA)

Abstract

Transceivers for wireless nodes often contain both a crystal and an acoustic wave device. The present invention directly uses an acoustic wave device for modulation and demodulation. As a result the crystal, which is both bulky and expensive, is no longer required. In addition the present invention can reduce power consumption.
PCT/IB2009/054104 2008-10-01 2009-09-18 Direct modulation and demodulation with acoustic wave devices WO2010038166A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08305629.1 2008-10-01
EP08305629 2008-10-01

Publications (2)

Publication Number Publication Date
WO2010038166A2 WO2010038166A2 (en) 2010-04-08
WO2010038166A3 true WO2010038166A3 (en) 2010-06-17

Family

ID=42008505

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/054104 WO2010038166A2 (en) 2008-10-01 2009-09-18 Direct modulation and demodulation with acoustic wave devices

Country Status (1)

Country Link
WO (1) WO2010038166A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961290A (en) * 1975-02-07 1976-06-01 Texas Instruments Incorporated Programmable phase coded surface wave device
US4625208A (en) * 1983-06-30 1986-11-25 X-Cyte Inc. Surface acoustic wave passive transponder having acoustic wave reflectors
US5986382A (en) * 1997-08-18 1999-11-16 X-Cyte, Inc. Surface acoustic wave transponder configuration
US20080056335A1 (en) * 2006-09-05 2008-03-06 Xg Technology, Inc. Pulse train carrier-less modulator using saw filters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961290A (en) * 1975-02-07 1976-06-01 Texas Instruments Incorporated Programmable phase coded surface wave device
US4625208A (en) * 1983-06-30 1986-11-25 X-Cyte Inc. Surface acoustic wave passive transponder having acoustic wave reflectors
US5986382A (en) * 1997-08-18 1999-11-16 X-Cyte, Inc. Surface acoustic wave transponder configuration
US20080056335A1 (en) * 2006-09-05 2008-03-06 Xg Technology, Inc. Pulse train carrier-less modulator using saw filters

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
BROCATO R ET AL: "High frequency SAW correlator module", 2003 PROCEEDINGS 53RD. ELECTRONIC COMPONENTS AND TECHNOLOGY CONFERENCE. (ECTC). NEW ORLEANS, LA, MAY 27 - 30, 2003; [PROCEEDINGS OF THE ELECTRONIC COMPONENTS AND TECHNOLOGY CONFERENCE], NEW YORK, NY : IEEE, US LNKD- DOI:10.1109/ECTC.2003.1216318, vol. CONF. 53, 27 May 2003 (2003-05-27), pages 458 - 463, XP010648358, ISBN: 978-0-7803-7991-6 *
HE PENG-FEI ET AL: "Study of Ultra-Wideband Wireless Communication System Based on / 4 DQPSK Chirp Spread Spectrum", MICROWAVE AND MILLIMETER WAVE TECHNOLOGY, 2007. ICMMT '07. INTERNATION AL CONFERENCE ON, IEEE, PI LNKD- DOI:10.1109/ICMMT.2007.381455, 1 April 2007 (2007-04-01), pages 1 - 4, XP031112867, ISBN: 978-1-4244-1048-4 *
TAKEUCHI Y ET AL: "A chirp spread spectrum DPSK modulator and demodulator for a time shift multiple access communication system by using SAW devices", MICROWAVE SYMPOSIUM DIGEST, 1998 IEEE MTT-S INTERNATIONAL BALTIMORE, MD, USA 7-12 JUNE 1998, NEW YORK, NY, USA,IEEE, US LNKD- DOI:10.1109/MWSYM.1998.705043, vol. 2, 7 June 1998 (1998-06-07), pages 507 - 510, XP010290344, ISBN: 978-0-7803-4471-6 *

Also Published As

Publication number Publication date
WO2010038166A2 (en) 2010-04-08

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