FI953609A - Menetelmä ja laite monivaihekomponentin alassekoittamiseksi - Google Patents

Menetelmä ja laite monivaihekomponentin alassekoittamiseksi Download PDF

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Publication number
FI953609A
FI953609A FI953609A FI953609A FI953609A FI 953609 A FI953609 A FI 953609A FI 953609 A FI953609 A FI 953609A FI 953609 A FI953609 A FI 953609A FI 953609 A FI953609 A FI 953609A
Authority
FI
Finland
Prior art keywords
downmixing
stage component
stage
component
Prior art date
Application number
FI953609A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI953609A0 (fi
Inventor
Robert T Love
Kenneth A Stewart
Bryan Rapala
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
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of FI953609A publication Critical patent/FI953609A/fi
Publication of FI953609A0 publication Critical patent/FI953609A0/fi

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/30—Systems using multi-frequency codes wherein each code element is represented by a combination of frequencies
    • 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
    • H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
FI953609A 1993-11-30 1995-07-28 Menetelmä ja laite monivaihekomponentin alassekoittamiseksi FI953609A0 (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/159,399 US5422909A (en) 1993-11-30 1993-11-30 Method and apparatus for multi-phase component downconversion
PCT/US1994/012280 WO1995015639A1 (en) 1993-11-30 1994-10-25 Method and apparatus for multi-phase component downconversion

Publications (2)

Publication Number Publication Date
FI953609A true FI953609A (fi) 1995-07-28
FI953609A0 FI953609A0 (fi) 1995-07-28

Family

ID=22572460

Family Applications (1)

Application Number Title Priority Date Filing Date
FI953609A FI953609A0 (fi) 1993-11-30 1995-07-28 Menetelmä ja laite monivaihekomponentin alassekoittamiseksi

Country Status (9)

Country Link
US (1) US5422909A (ja)
JP (1) JP3640395B2 (ja)
KR (1) KR0160831B1 (ja)
CN (1) CN1074218C (ja)
CA (1) CA2153682C (ja)
FI (1) FI953609A0 (ja)
IL (1) IL111377A (ja)
SE (1) SE9502703L (ja)
WO (1) WO1995015639A1 (ja)

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US6785249B2 (en) * 1998-10-05 2004-08-31 Qualcomm, Incorporated Method and apparatus for detecting forward and reverse link imbalance in digital cellular communication systems
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US7295826B1 (en) * 1998-10-21 2007-11-13 Parkervision, Inc. Integrated frequency translation and selectivity with gain control functionality, and applications thereof
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US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
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US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US6650264B1 (en) 1999-03-10 2003-11-18 Cirrus Logic, Inc. Quadrature sampling architecture and method for analog-to-digital converters
US6496536B2 (en) * 1999-03-25 2002-12-17 Qualcomm, Incorporated System and method for estimating power
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
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US6963734B2 (en) * 1999-12-22 2005-11-08 Parkervision, Inc. Differential frequency down-conversion using techniques of universal frequency translation technology
US6895058B2 (en) * 2000-01-17 2005-05-17 Qualcomm Incorporated Dual paging channel receiver for a wireless communications system
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KR100823129B1 (ko) * 2004-08-18 2008-04-21 삼성전자주식회사 이동통신 시스템의 트랙킹 장치 및 방법
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CN103916149B (zh) * 2012-12-31 2015-11-25 西安合众思壮导航技术有限公司 下变频方法、装置及带有该装置的设备
CN110233606A (zh) * 2019-05-28 2019-09-13 北京星网锐捷网络技术有限公司 多速率变换滤波方法及装置
FR3147473A1 (fr) * 2023-04-03 2024-10-04 Universite de Bordeaux Procédé de génération d’un signal radiofréquences, produits programme d’ordinateur et dispositifs correspondants.

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Also Published As

Publication number Publication date
CN1116891A (zh) 1996-02-14
IL111377A0 (en) 1994-12-29
CA2153682C (en) 1999-03-23
CN1074218C (zh) 2001-10-31
IL111377A (en) 1997-09-30
JPH08506470A (ja) 1996-07-09
SE9502703L (sv) 1995-10-02
SE9502703D0 (sv) 1995-07-27
US5422909A (en) 1995-06-06
KR0160831B1 (ko) 1998-12-01
WO1995015639A1 (en) 1995-06-08
FI953609A0 (fi) 1995-07-28
KR960700600A (ko) 1996-01-20
CA2153682A1 (en) 1995-06-08
JP3640395B2 (ja) 2005-04-20

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