JP4810653B2 - 無線通信システム及び方法 - Google Patents

無線通信システム及び方法 Download PDF

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Publication number
JP4810653B2
JP4810653B2 JP2004310449A JP2004310449A JP4810653B2 JP 4810653 B2 JP4810653 B2 JP 4810653B2 JP 2004310449 A JP2004310449 A JP 2004310449A JP 2004310449 A JP2004310449 A JP 2004310449A JP 4810653 B2 JP4810653 B2 JP 4810653B2
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Japan
Prior art keywords
signal
time interval
modulated signal
receiving
demodulated
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Expired - Fee Related
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JP2004310449A
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English (en)
Japanese (ja)
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JP2005136988A5 (enExample
JP2005136988A (ja
Inventor
ニール・ジェイ・サイドル
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ジーイー・メディカル・システムズ・インフォメーション・テクノロジーズ・インコーポレーテッド
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    • 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
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
    • H04L27/2078—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the phase change per symbol period is constrained
    • H04L27/2082—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the phase change per symbol period is constrained for offset or staggered quadrature phase shift keying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
    • H04L25/03076—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure not using decision feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0012—Modulated-carrier systems arrangements for identifying the type of modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/142—Compensating direct current components occurring during the demodulation and which are caused by mistuning
    • 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
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
    • H04L27/2017—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
    • A61B5/002—Monitoring the patient using a local or closed circuit, e.g. in a room or building
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03401—PSK
    • H04L2025/03407—Continuous phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03484—Tapped delay lines time-recursive
    • H04L2025/0349—Tapped delay lines time-recursive as a feedback filter

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
JP2004310449A 2003-10-27 2004-10-26 無線通信システム及び方法 Expired - Fee Related JP4810653B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/694,039 US7298788B2 (en) 2003-10-27 2003-10-27 Wireless communication system and method
US10/694,039 2003-10-27

Publications (3)

Publication Number Publication Date
JP2005136988A JP2005136988A (ja) 2005-05-26
JP2005136988A5 JP2005136988A5 (enExample) 2007-12-06
JP4810653B2 true JP4810653B2 (ja) 2011-11-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004310449A Expired - Fee Related JP4810653B2 (ja) 2003-10-27 2004-10-26 無線通信システム及び方法

Country Status (2)

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US (2) US7298788B2 (enExample)
JP (1) JP4810653B2 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4140521B2 (ja) * 2003-12-26 2008-08-27 沖電気工業株式会社 復調器
JP5032971B2 (ja) * 2007-12-28 2012-09-26 古野電気株式会社 復調装置
AT509699B1 (de) * 2010-04-07 2013-02-15 Microtronics Engineering GmbH Funkempfangseinrichtung zum empfangen von funksignalen von unterschiedlichen funksendern
US8908808B2 (en) * 2011-09-16 2014-12-09 Telefonaktiebolaget L M Ericsson (Publ) Systems and methods for demodulating a signal
US9408147B2 (en) * 2012-09-24 2016-08-02 Broadcom Corporation Enhanced rate physical layer for Bluetooth™ low energy
FR3023439B1 (fr) 2014-07-04 2016-07-29 Thales Sa Procede ameliore de modulation a phase continue et emetteur mettant en oeuvre le procede
US9722845B2 (en) * 2015-12-23 2017-08-01 Intel IP Corporation Bluetooth low energy frequency offset and modulation index estimation
EP3965384A1 (en) 2020-09-07 2022-03-09 RivieraWaves Method for decoding an rf signal bearing a sequence of symbols modulated by cpm and associated decoder

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59193658A (ja) * 1983-04-18 1984-11-02 Nec Corp 擬似誤り検出回路
JPH01117451A (ja) * 1987-10-30 1989-05-10 Nec Corp 復調回路
JPH04115646A (ja) * 1990-08-31 1992-04-16 Sanyo Electric Co Ltd 位相変調信号復調回路
JPH07123017A (ja) * 1993-10-28 1995-05-12 Nec Eng Ltd 受信装置
JP3451839B2 (ja) * 1996-05-31 2003-09-29 安藤電気株式会社 バースト・データの高速復調方法およびその装置
JPH10126444A (ja) * 1996-10-23 1998-05-15 Kokusai Electric Co Ltd 画像伝送方法
JPH10136320A (ja) * 1996-11-01 1998-05-22 Canon Inc ディジタル伝送装置
US6125148A (en) * 1997-08-29 2000-09-26 Telefonaktiebolaget Lm Ericsson Method for demodulating information in a communication system that supports multiple modulation schemes
US6055269A (en) * 1997-10-06 2000-04-25 Sun Microsystems, Inc. Adaptive equalization technique using twice sampled non-return to zero data
JP2001211213A (ja) * 2000-01-26 2001-08-03 Hitachi Kokusai Electric Inc 復調方法及び復調回路及び携帯無線機
JP2002009855A (ja) * 2000-06-16 2002-01-11 Sharp Corp デジタル通信用復調装置
US6891909B2 (en) 2001-02-28 2005-05-10 Ge Marquette Medical Systems, Inc. Pro-active antenna switching based on relative power
US7243295B2 (en) * 2001-06-12 2007-07-10 Intel Corporation Low complexity channel decoders
KR20040017383A (ko) * 2002-08-21 2004-02-27 삼성전자주식회사 어드레스 데이터 변조 방법 및 장치, 그 어드레스 데이터복조방법 및 장치, 그리고 그 기록매체
TWI256220B (en) * 2003-04-17 2006-06-01 United Radiotek Inc Digital dc bias estimation apparatus and method
US7248843B2 (en) * 2003-11-07 2007-07-24 Ge Medical Systems Information Technologies, Inc. Antenna selection system and method

Also Published As

Publication number Publication date
US20050089113A1 (en) 2005-04-28
JP2005136988A (ja) 2005-05-26
US7298788B2 (en) 2007-11-20
US20070291869A1 (en) 2007-12-20
US7643571B2 (en) 2010-01-05

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