FI114421B - Laite taajuudenmuunnoksen suorittamiseksi viestintäjärjestelmässä - Google Patents

Laite taajuudenmuunnoksen suorittamiseksi viestintäjärjestelmässä Download PDF

Info

Publication number
FI114421B
FI114421B FI960966A FI960966A FI114421B FI 114421 B FI114421 B FI 114421B FI 960966 A FI960966 A FI 960966A FI 960966 A FI960966 A FI 960966A FI 114421 B FI114421 B FI 114421B
Authority
FI
Finland
Prior art keywords
signal
frequency
output
phase
frequency converter
Prior art date
Application number
FI960966A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI960966A (fi
FI960966A0 (fi
Inventor
Robert T Love
Kenneth A Stewart
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 FI960966A publication Critical patent/FI960966A/fi
Publication of FI960966A0 publication Critical patent/FI960966A0/fi
Application granted granted Critical
Publication of FI114421B publication Critical patent/FI114421B/fi

Links

Classifications

    • 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
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
    • H04B1/0021—Decimation, i.e. data rate reduction techniques
    • 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
    • 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
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related 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
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • 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
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • H04B1/0028—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage
    • H04B1/0032—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage with analogue quadrature frequency conversion to and from the baseband
    • 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
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • H04B1/0028—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage
    • H04B1/0046—Decimation, i.e. data rate reduction techniques
    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/005—Analog to digital conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0054—Digital filters
    • H03D2200/0056—Digital filters including a digital decimation filter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/006—Signal sampling
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0066—Mixing
    • H03D2200/0068—Mixing by computation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0066—Mixing
    • H03D2200/0072—Mixing by complex multiplication
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/008—Hilbert type transformation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Superheterodyne Receivers (AREA)
FI960966A 1994-07-01 1996-03-01 Laite taajuudenmuunnoksen suorittamiseksi viestintäjärjestelmässä FI114421B (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US27607394 1994-07-01
US08/276,073 US5521938A (en) 1994-07-01 1994-07-01 Apparatus for performing frequency conversion in a communication system
US9506468 1995-05-26
PCT/US1995/006468 WO1996001530A1 (en) 1994-07-01 1995-05-26 Apparatus for performing frequency conversion in a communication system

Publications (3)

Publication Number Publication Date
FI960966A FI960966A (fi) 1996-03-01
FI960966A0 FI960966A0 (fi) 1996-03-01
FI114421B true FI114421B (fi) 2004-10-15

Family

ID=23055042

Family Applications (1)

Application Number Title Priority Date Filing Date
FI960966A FI114421B (fi) 1994-07-01 1996-03-01 Laite taajuudenmuunnoksen suorittamiseksi viestintäjärjestelmässä

Country Status (8)

Country Link
US (1) US5521938A (ko)
EP (1) EP0716788B1 (ko)
KR (1) KR0173415B1 (ko)
CN (1) CN1064492C (ko)
CA (1) CA2167702A1 (ko)
FI (1) FI114421B (ko)
IL (1) IL113900A0 (ko)
WO (1) WO1996001530A1 (ko)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US5768268A (en) * 1995-07-19 1998-06-16 Watkins Johnson Company Wideband base station architecture for digital cellular communications system
US6487262B1 (en) 1996-02-06 2002-11-26 Next Level Communications Synchronization and downconversion in TDM/TDMA systems
US6678311B2 (en) * 1996-05-28 2004-01-13 Qualcomm Incorporated High data CDMA wireless communication system using variable sized channel codes
US5930309A (en) * 1997-02-27 1999-07-27 Thomson Consumer Electronics, Inc. Receiver signal processing system for cap signals
US6173007B1 (en) * 1997-01-15 2001-01-09 Qualcomm Inc. High-data-rate supplemental channel for CDMA telecommunications system
US6229856B1 (en) * 1997-04-14 2001-05-08 Masimo Corporation Method and apparatus for demodulating signals in a pulse oximetry system
JPH10322407A (ja) * 1997-05-16 1998-12-04 Matsushita Electric Ind Co Ltd デュアルバンドデータ通信装置
US6456644B1 (en) 1997-06-23 2002-09-24 Cellnet Data Systems, Inc. Bandpass correlation of a spread spectrum signal
US6628699B2 (en) 1997-06-23 2003-09-30 Schlumberger Resource Management Systems, Inc. Receiving a spread spectrum signal
US6178197B1 (en) 1997-06-23 2001-01-23 Cellnet Data Systems, Inc. Frequency discrimination in a spread spectrum signal processing system
US6047016A (en) * 1997-06-23 2000-04-04 Cellnet Data Systems, Inc. Processing a spread spectrum signal in a frequency adjustable system
US6741638B2 (en) 1997-06-23 2004-05-25 Schlumbergersema Inc. Bandpass processing of a spread spectrum signal
US6240122B1 (en) * 1997-09-02 2001-05-29 Fujitsu Limited Receiving apparatus of code spread communication type
KR100442661B1 (ko) * 1998-11-02 2004-10-14 삼성전자주식회사 이동통신시스템의단부호생성장치및방법
DE10045546A1 (de) * 2000-09-14 2002-04-04 Infineon Technologies Ag Verfahren zur systemunabhängigen digitalen Auswertung von Mobilkommunikations-Empfangssignalen verschiedener Mobilfunkstandards
US7003338B2 (en) 2003-07-08 2006-02-21 Masimo Corporation Method and apparatus for reducing coupling between signals
US7206560B2 (en) * 2003-12-30 2007-04-17 Silicon Laboratories Chopped intermediate frequency wireless receiver
US20050265427A1 (en) * 2004-05-28 2005-12-01 Gumm Linley F Up converted PRN generator
US8295388B1 (en) * 2008-12-01 2012-10-23 L-3 Communications, Corp. Efficient digital upconverter
KR101288536B1 (ko) * 2011-10-07 2013-07-22 한국과학기술원 선형 시불변 필터 기반의 중계 시스템 및 이의 최적화 방법
DE102016115657A1 (de) * 2016-08-23 2018-03-01 Infineon Technologies Ag Phasenregelkreis

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656064A (en) * 1969-09-17 1972-04-11 Sanders Associates Inc Data demodulator employing comparison
US3674935A (en) * 1970-10-07 1972-07-04 Bell Telephone Labor Inc Digital circuit demodulator for frequency-shift data signals
US3982195A (en) * 1975-05-29 1976-09-21 Teletype Corporation Method and apparatus for decoding diphase signals
US4785463A (en) * 1985-09-03 1988-11-15 Motorola, Inc. Digital global positioning system receiver
JPH083525B2 (ja) * 1988-10-12 1996-01-17 日本無線株式会社 Ｃｐｓ受信装置
US5120997A (en) * 1989-03-06 1992-06-09 Raytheon Company Spread spection signal detector
US4972430A (en) * 1989-03-06 1990-11-20 Raytheon Company Spread spectrum signal detector
US5341396A (en) * 1993-03-02 1994-08-23 The Boeing Company Multi-rate spread system

Also Published As

Publication number Publication date
IL113900A0 (en) 1995-08-31
KR960705411A (ko) 1996-10-09
EP0716788A1 (en) 1996-06-19
CN1130002A (zh) 1996-08-28
EP0716788B1 (en) 2002-07-17
WO1996001530A1 (en) 1996-01-18
US5521938A (en) 1996-05-28
EP0716788A4 (en) 1996-11-06
FI960966A (fi) 1996-03-01
CA2167702A1 (en) 1996-01-18
CN1064492C (zh) 2001-04-11
KR0173415B1 (ko) 1999-04-01
FI960966A0 (fi) 1996-03-01

Similar Documents

Publication Publication Date Title
FI114421B (fi) Laite taajuudenmuunnoksen suorittamiseksi viestintäjärjestelmässä
US6459743B1 (en) Digital reception with radio frequency sampling
US8379760B2 (en) Hybrid heterodyne transmitters and receivers
US6104764A (en) Radio receiving apparatus for receiving communication signals of different bandwidths
US6748025B1 (en) Direct conversion delta-sigma receiver
KR100736057B1 (ko) 듀얼 디지털 저역 ｉｆ 복합 수신기
US9813086B2 (en) RF transmitter, integrated circuit device, wireless communication unit and method therefor
US8913698B2 (en) Programmable, frequency agile direct conversion digital receiver with high speed oversampling
US6265948B1 (en) Image rejection in logic-based architecture for FSK modulation and demodulation
US20070247239A1 (en) Phase modulator
US6674812B1 (en) High IF frequencies with a lower frequency logic based FSK modulation selecting a harmonic alias and demodulation using sub-sampling techniques
US6288618B1 (en) Logic-based architecture for FSK modulation and demodulation
AU2777000A (en) Frequency shifting circuit and method
Maurer et al. Be flexible
US6504879B1 (en) Digital modulation apparatus
JP3441255B2 (ja) 信号発生装置およびこれを用いた送信装置
Puvaneswari et al. Digital Front–End for Wideband Analog Front–End in a Multi–Standard Software Defined Radio Receiver
KR20020066736A (ko) 광대역 코드분할 다중접속 이동통신 시스템의 송신장치

Legal Events

Date Code Title Description
FG Patent granted

Ref document number: 114421

Country of ref document: FI

MA Patent expired