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

Direct modulation and demodulation with acoustic wave devices Download PDF

Info

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

Links

Classifications

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

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 2008-10-01
EP08305629.1 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

Similar Documents

Publication Publication Date Title
WO2009111597A3 (en) Packaging and details of a wireless power device
EP2226819A4 (en) Plane coil, and non-contact power transmission device using the same
WO2010142290A8 (en) An earphone system comprising an earphone and a portable holding device
EP2315347A4 (en) Semiconductor device and power converter using the semiconductor device
EP2070756A4 (en) Coupling device, power output apparatus with the device, and hybrid vehicle
EP2022662A4 (en) Power output device and vehicle with the same
EP2458681A4 (en) Frequency variable antenna circuit, antenna component constituting the same, and wireless communication device using those
WO2008085504A3 (en) Implementation of a wireless power transmitter and method
MX2009009290A (en) Ppar active compounds.
AU2006266129A8 (en) Amino-5-(5-membered)heteroarylimidazolone compounds and the use thereof for beta-secretase modulation
EP1947793A4 (en) Modulation device, modulation method, demodulation device, and demodulation method
NO20064695L (en) Detachable identification device for multilayer tubular structures
EP2416470A4 (en) Wireless power supply system, wireless power transmission device, and wireless power receiving device
AU2006266167A8 (en) Amino-5-(6-membered)heteroarylimidazolone compounds and the use thereof for beta-secretase modulation
IL187873A0 (en) Surface functional electro-textile with functionality modulation capability, methods for making the same, and applications incorporatiing the same
EP2357728A4 (en) Surface acoustic wave resonator, surface acoustic wave oscillator, and surface acoustic wave module device
WO2010129923A8 (en) Patterned heat management material
EP2048018A4 (en) Power output device, vehicle having the device, and method of controlling power output device
WO2012087337A3 (en) Power factor controller and method
DE602006005076D1 (en) Polar modulation transmission circuit and communication device
EP2058556A4 (en) Power transmission belt, assembling device for the belt, and assembling method for the belt
EP1933032A4 (en) Compressor and power transmission device
EP1759561A4 (en) Headphone receiver apparatus for use with low power transmitters
EP2541816A4 (en) Peak power suppression circuit, and communication device provided with said circuit
EP2426727A4 (en) Solar battery device, and solar battery module using the same

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09787248

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09787248

Country of ref document: EP

Kind code of ref document: A2