WO2007148242A3 - Method for demodulating a modulated signal, demodulator and receiver - Google Patents

Method for demodulating a modulated signal, demodulator and receiver Download PDF

Info

Publication number
WO2007148242A3
WO2007148242A3 PCT/IB2007/051879 IB2007051879W WO2007148242A3 WO 2007148242 A3 WO2007148242 A3 WO 2007148242A3 IB 2007051879 W IB2007051879 W IB 2007051879W WO 2007148242 A3 WO2007148242 A3 WO 2007148242A3
Authority
WO
WIPO (PCT)
Prior art keywords
demodulator
signal
modulated signal
modulated
demodulating
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IB2007/051879
Other languages
French (fr)
Other versions
WO2007148242A2 (en
Inventor
Harald Witschnig
Johannes Bruckbauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NXP BV
Original Assignee
NXP BV
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 NXP BV filed Critical NXP BV
Priority to EP07735943A priority Critical patent/EP2038996B1/en
Priority to US12/306,148 priority patent/US8078125B2/en
Priority to DE602007003475T priority patent/DE602007003475D1/en
Priority to JP2009516004A priority patent/JP4909410B2/en
Priority to CN2007800232064A priority patent/CN101473528B/en
Priority to AT07735943T priority patent/ATE450079T1/en
Publication of WO2007148242A2 publication Critical patent/WO2007148242A2/en
Publication of WO2007148242A3 publication Critical patent/WO2007148242A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Near-Field Transmission Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

A demodulator (6) for demodulating a modulated signal (3) comprises a Hubert transformer (7) for generating a Hubert transformed modulated signal (18) of the modulated signal (3). The Hubert transformed modulated signal (18) comprises modulated (5) and unmodulated signal sequences (4) and originates from an unmodulated signal. The demodulator (6) further comprises a comparing device (14) for comparing the Hubert transformed modulated signal (18) with a reference signal (15), which corresponds to the Hubert transformed unmodulated signal. The demodulator (6) is further configured to identify the modulated and unmodulated signal sequences (4, 5) based on the comparison.
PCT/IB2007/051879 2006-06-21 2007-05-16 Method for demodulating a modulated signal, demodulator and receiver Ceased WO2007148242A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP07735943A EP2038996B1 (en) 2006-06-21 2007-05-16 Method for demodulating a modulated signal, demodulator and receiver
US12/306,148 US8078125B2 (en) 2006-06-21 2007-05-16 Method for demodulating a modulated signal, demodulator and receiver
DE602007003475T DE602007003475D1 (en) 2006-06-21 2007-05-16 METHOD FOR DEMODULATING A MODULATED SIGNAL, DEMODULATOR AND RECEIVER
JP2009516004A JP4909410B2 (en) 2006-06-21 2007-05-16 Method for demodulating a modulated signal, demodulator and receiver
CN2007800232064A CN101473528B (en) 2006-06-21 2007-05-16 Method for demodulating a modulated signal, demodulator and receiver
AT07735943T ATE450079T1 (en) 2006-06-21 2007-05-16 METHOD FOR DEMODULATING A MODULATED SIGNAL, DEMODULATOR AND RECEIVER

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06115779.8 2006-06-21
EP06115779 2006-06-21

Publications (2)

Publication Number Publication Date
WO2007148242A2 WO2007148242A2 (en) 2007-12-27
WO2007148242A3 true WO2007148242A3 (en) 2008-07-03

Family

ID=38833837

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/051879 Ceased WO2007148242A2 (en) 2006-06-21 2007-05-16 Method for demodulating a modulated signal, demodulator and receiver

Country Status (7)

Country Link
US (1) US8078125B2 (en)
EP (1) EP2038996B1 (en)
JP (1) JP4909410B2 (en)
CN (1) CN101473528B (en)
AT (1) ATE450079T1 (en)
DE (1) DE602007003475D1 (en)
WO (1) WO2007148242A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8078125B2 (en) * 2006-06-21 2011-12-13 Nxp B.V. Method for demodulating a modulated signal, demodulator and receiver
JP5492606B2 (en) 2010-03-03 2014-05-14 アズビル株式会社 Arithmetic device and flow meter provided with arithmetic device
CN102685053B (en) * 2012-05-15 2014-08-27 北京航空航天大学 Communication signal modulating and identifying method based on generalized S transformation
JP5850260B2 (en) * 2013-01-25 2016-02-03 ソニー株式会社 Signal processing apparatus, signal processing method, and recording medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4219417A1 (en) * 1992-06-13 1993-12-16 Meyer Baese Uwe Dipl Ing Narrow-band data signal receiver from long-wave transmitter - employs Hilbert transform to produce in=phase and quadrature signal components for coordinate rotation digital computer.
US5694419A (en) * 1995-11-07 1997-12-02 Hitachi America, Ltd. Shared resource modulator-demodulator circuits for use with vestigial sideband signals
GB2382282A (en) * 2001-11-19 2003-05-21 Lucent Technologies Inc A digital demodulator
US6671333B1 (en) * 1998-11-25 2003-12-30 Siemens Aktiengesellschaft Method and apparatus for recovering a payload signal from a signal that has been modulated by frequency shift keying

Family Cites Families (14)

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JPH0366245A (en) * 1989-08-04 1991-03-20 Matsushita Electric Ind Co Ltd Carrier recovery device
US5369670A (en) * 1992-02-14 1994-11-29 Agt Limited Method and apparatus for demodulation of a signal transmitted over a fading channel using phase estimation
KR0141110B1 (en) * 1993-02-26 1998-06-15 김광호 Color signal demodulator
JP3257221B2 (en) * 1994-01-12 2002-02-18 株式会社アドバンテスト Non-contact signal observation device
JPH10313260A (en) * 1997-05-13 1998-11-24 Matsushita Electric Ind Co Ltd Receiver
US6054925A (en) 1997-08-27 2000-04-25 Data Investments Limited High impedance transponder with improved backscatter modulator for electronic identification system
ES2142175T3 (en) * 1998-02-17 2000-04-01 Siemens Ag DATA SUPPORT AND PROCEDURE FOR THE CONTACTLESS RECEPTION OF DATA AND ENERGY.
US6584205B1 (en) * 1999-08-26 2003-06-24 American Technology Corporation Modulator processing for a parametric speaker system
WO2003073280A1 (en) * 2002-02-26 2003-09-04 Advantest Corporation Measuring apparatus and measuring method
US7054358B2 (en) * 2002-04-29 2006-05-30 Advantest Corporation Measuring apparatus and measuring method
JP4431884B2 (en) * 2004-09-13 2010-03-17 ブラザー工業株式会社 Interrogator for RFID tag communication system
CN100410925C (en) * 2004-12-30 2008-08-13 中国科学院长春光学精密机械与物理研究所 Digital Signal Processing Method of Ultrasonic Signal
US8433074B2 (en) * 2005-10-26 2013-04-30 Nec Corporation Echo suppressing method and apparatus
US8078125B2 (en) * 2006-06-21 2011-12-13 Nxp B.V. Method for demodulating a modulated signal, demodulator and receiver

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4219417A1 (en) * 1992-06-13 1993-12-16 Meyer Baese Uwe Dipl Ing Narrow-band data signal receiver from long-wave transmitter - employs Hilbert transform to produce in=phase and quadrature signal components for coordinate rotation digital computer.
US5694419A (en) * 1995-11-07 1997-12-02 Hitachi America, Ltd. Shared resource modulator-demodulator circuits for use with vestigial sideband signals
US6671333B1 (en) * 1998-11-25 2003-12-30 Siemens Aktiengesellschaft Method and apparatus for recovering a payload signal from a signal that has been modulated by frequency shift keying
GB2382282A (en) * 2001-11-19 2003-05-21 Lucent Technologies Inc A digital demodulator

Also Published As

Publication number Publication date
WO2007148242A2 (en) 2007-12-27
JP2009542079A (en) 2009-11-26
DE602007003475D1 (en) 2010-01-07
CN101473528A (en) 2009-07-01
CN101473528B (en) 2011-05-11
JP4909410B2 (en) 2012-04-04
US20090280763A1 (en) 2009-11-12
EP2038996A2 (en) 2009-03-25
US8078125B2 (en) 2011-12-13
EP2038996B1 (en) 2009-11-25
ATE450079T1 (en) 2009-12-15

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