FI981309A - Laitteisto ja menetelmä moduloidun signaalin demoduloimiseksi - Google Patents

Laitteisto ja menetelmä moduloidun signaalin demoduloimiseksi Download PDF

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Publication number
FI981309A
FI981309A FI981309A FI981309A FI981309A FI 981309 A FI981309 A FI 981309A FI 981309 A FI981309 A FI 981309A FI 981309 A FI981309 A FI 981309A FI 981309 A FI981309 A FI 981309A
Authority
FI
Finland
Prior art keywords
demodulating
modulated signal
modulated
signal
Prior art date
Application number
FI981309A
Other languages
English (en)
Swedish (sv)
Other versions
FI981309A0 (fi
Inventor
Tyler A Brown
Dennis J Thompson
Fuyun Ling
Original Assignee
Motorola 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
Publication of FI981309A0 publication Critical patent/FI981309A0/fi
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of FI981309A publication Critical patent/FI981309A/fi

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • 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
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
FI981309A 1996-10-21 1998-06-08 Laitteisto ja menetelmä moduloidun signaalin demoduloimiseksi FI981309A (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/734,225 US5767738A (en) 1996-10-21 1996-10-21 Apparatus and method for demodulating a modulated signal
PCT/US1997/014393 WO1998018202A1 (en) 1996-10-21 1997-08-13 Apparatus and method for demodulating a modulated signal

Publications (2)

Publication Number Publication Date
FI981309A0 FI981309A0 (fi) 1997-08-13
FI981309A true FI981309A (fi) 1998-06-08

Family

ID=24950801

Family Applications (1)

Application Number Title Priority Date Filing Date
FI981309A FI981309A (fi) 1996-10-21 1998-06-08 Laitteisto ja menetelmä moduloidun signaalin demoduloimiseksi

Country Status (8)

Country Link
US (1) US5767738A (fi)
JP (1) JP3492705B2 (fi)
KR (1) KR100412292B1 (fi)
CN (1) CN1083638C (fi)
BR (1) BR9706879A (fi)
CA (1) CA2238329C (fi)
FI (1) FI981309A (fi)
WO (1) WO1998018202A1 (fi)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2798129B2 (ja) * 1996-08-26 1998-09-17 日本電気株式会社 チャープスペクトラム拡散信号多重化装置用送信装置及び受信装置
US5912876A (en) * 1997-01-15 1999-06-15 Ericsson, Inc. Method and apparatus for channel estimation
US6072785A (en) * 1997-03-04 2000-06-06 At&T Corp Differential PSK signalling in CDMA networks
US6788708B1 (en) * 1997-03-30 2004-09-07 Intel Corporation Code synchronization unit and method
US6233271B1 (en) * 1997-12-31 2001-05-15 Sony Corporation Method and apparatus for decoding trellis coded direct sequence spread spectrum communication signals
US6215813B1 (en) * 1997-12-31 2001-04-10 Sony Corporation Method and apparatus for encoding trellis coded direct sequence spread spectrum communication signals
US5974079A (en) * 1998-01-26 1999-10-26 Motorola, Inc. Method and apparatus for encoding rate determination in a communication system
FR2782587B1 (fr) * 1998-08-20 2000-09-22 France Telecom Procedes de communications numeriques amrc a repartition des symboles de reference
US6356605B1 (en) * 1998-10-07 2002-03-12 Texas Instruments Incorporated Frame synchronization in space time block coded transmit antenna diversity for WCDMA
CA2282800C (en) * 1998-11-09 2007-07-31 Lucent Technologies Inc. A coherent combining/noncoherent detection (ccnd) method and apparatus for detecting a pilot signal in a wireless communication system
US6169887B1 (en) * 1999-03-02 2001-01-02 Motorola, Inc. Range extension within a communication system
US6580930B1 (en) 1999-04-15 2003-06-17 Ericsson, Inc. Signal detector selector and method for selecting a detector
AU6388699A (en) * 1999-09-13 2001-04-17 Sony Electronics Inc. Method and apparatus for decoding trellis coded direct sequence spread spectrum communication signals
GB2354403B (en) * 1999-09-16 2004-02-11 Ericsson Telefon Ab L M Communication systems
US6683903B1 (en) 2000-04-27 2004-01-27 Motorola, Inc. Method and apparatus for synchronization within a spread-spectrum communication system
US7443826B1 (en) * 2000-10-04 2008-10-28 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for automatic frequency control in a CDMA receiver
US6542483B1 (en) * 2000-11-08 2003-04-01 Motorola, Inc. Method and an apparatus for Eb/Nt estimation for forward power control in spread spectrum communications systems
US20020122468A1 (en) * 2001-01-12 2002-09-05 Terion, Inc. Quasi orthogonal hybrid walsh-PN codes for CDMA application in HF modems
US8755473B2 (en) * 2001-01-29 2014-06-17 Ipr Licensing, Inc. Method and apparatus for detecting rapid changes in signaling path environment
JP3880358B2 (ja) * 2001-10-04 2007-02-14 シャープ株式会社 Ｏｆｄｍ復調回路及びこれを用いたｏｆｄｍ受信装置
US7286481B2 (en) * 2002-12-17 2007-10-23 Intel Corporation Wireless network adapted to transmit channel side information and method thereof
US20080043862A1 (en) * 2004-06-17 2008-02-21 Kiyoshi Yajima Receiving Apparatus and Receiving Method
US7310391B2 (en) * 2005-08-12 2007-12-18 At&T Corp. De-modulation of MOK(M-ary orthogonal modulation)
US20070110140A1 (en) * 2005-11-14 2007-05-17 Ipwireless, Inc. Automatic selection of coherent and noncoherent transmission in a wireless communication system
US7949073B2 (en) * 2007-02-28 2011-05-24 Freescale Semiconductor, Inc. Dual-mode system and method for receiving wireless signals
US8433991B2 (en) 2010-06-16 2013-04-30 Qualcomm Incorporated Global Navigation Satellite System (GLONASS) data bit edge detection
US8780958B2 (en) 2010-08-27 2014-07-15 Qualcomm Incorporated Hybrid bit extraction for global position receiver
US8619919B2 (en) * 2010-10-14 2013-12-31 Qualcomm Incorporated Selective coherent and non-coherent demodulation methods and apparatuses
US9043044B2 (en) * 2012-12-11 2015-05-26 Electro-Motive Diesel, Inc. System and method for communicating data in a consist
EP3076624A4 (en) 2013-10-30 2017-05-31 Samsung Electronics Co., Ltd. Method and device for transmitting preamble sequence
KR102240281B1 (ko) 2015-04-10 2021-04-14 삼성전자주식회사 송신 신호를 검출하기 위한 장치 및 방법
CN114244669B (zh) * 2021-11-12 2024-01-26 北京智芯微电子科技有限公司 主端、从端及其通信方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214391A (en) * 1989-12-06 1993-05-25 Kabushiki Kaisha Toshiba Demodulation apparatus having multipath detector for selecting a first or second demodulator
US5138820A (en) * 1990-02-16 1992-08-18 Space Biospheres Venture Low leakage glazing system for space frame structures
US5418489A (en) * 1993-10-08 1995-05-23 Motorola, Inc. Method of recovering a frequency modulated signal
CA2175672A1 (en) * 1993-11-09 1995-05-18 Steven H. Gardner Method and apparatus for dual demodulation of mobile channel signals
JP3276526B2 (ja) * 1995-02-21 2002-04-22 アイコム株式会社 復調回路

Also Published As

Publication number Publication date
JP3492705B2 (ja) 2004-02-03
WO1998018202A1 (en) 1998-04-30
CN1206514A (zh) 1999-01-27
KR19990076622A (ko) 1999-10-15
CA2238329C (en) 2001-03-27
JP2000502554A (ja) 2000-02-29
CN1083638C (zh) 2002-04-24
KR100412292B1 (ko) 2004-04-28
US5767738A (en) 1998-06-16
BR9706879A (pt) 2000-01-25
FI981309A0 (fi) 1997-08-13
CA2238329A1 (en) 1998-04-30

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