HK1068470A1 - Method and apparatus for downconverting signals transmitted using a plurality of modulation formats to a common intermediate frequency range - Google Patents

Method and apparatus for downconverting signals transmitted using a plurality of modulation formats to a common intermediate frequency range

Info

Publication number
HK1068470A1
HK1068470A1 HK05100669A HK05100669A HK1068470A1 HK 1068470 A1 HK1068470 A1 HK 1068470A1 HK 05100669 A HK05100669 A HK 05100669A HK 05100669 A HK05100669 A HK 05100669A HK 1068470 A1 HK1068470 A1 HK 1068470A1
Authority
HK
Hong Kong
Prior art keywords
frequency range
intermediate frequency
signals transmitted
common intermediate
modulation formats
Prior art date
Application number
HK05100669A
Other languages
English (en)
Inventor
Ciccarelli Steven
Saed G Younis
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of HK1068470A1 publication Critical patent/HK1068470A1/xx

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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/0057—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/006—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transceivers (AREA)
HK05100669A 1998-03-02 2001-06-22 Method and apparatus for downconverting signals transmitted using a plurality of modulation formats to a common intermediate frequency range HK1068470A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7652098P 1998-03-02 1998-03-02
US09/259,242 US6359940B1 (en) 1998-03-02 1999-02-26 Method and apparatus for downconverting signals transmitted using a plurality of modulation formats to a common intermediate frequency range

Publications (1)

Publication Number Publication Date
HK1068470A1 true HK1068470A1 (en) 2005-04-29

Family

ID=26758203

Family Applications (2)

Application Number Title Priority Date Filing Date
HK01103050A HK1033718A1 (en) 1998-03-02 2001-04-27 Method and apparatus for downconverting signals transmitted using a plurality of modulation formats to a common intermediate frequency range
HK05100669A HK1068470A1 (en) 1998-03-02 2001-06-22 Method and apparatus for downconverting signals transmitted using a plurality of modulation formats to a common intermediate frequency range

Family Applications Before (1)

Application Number Title Priority Date Filing Date
HK01103050A HK1033718A1 (en) 1998-03-02 2001-04-27 Method and apparatus for downconverting signals transmitted using a plurality of modulation formats to a common intermediate frequency range

Country Status (14)

Country Link
US (1) US6359940B1 (xx)
EP (1) EP1060572B1 (xx)
JP (2) JP4354637B2 (xx)
KR (1) KR100581453B1 (xx)
CN (2) CN1158784C (xx)
AU (1) AU769051B2 (xx)
BR (1) BR9908440A (xx)
CA (1) CA2321582C (xx)
DE (1) DE69929680T2 (xx)
ES (1) ES2260904T3 (xx)
HK (2) HK1033718A1 (xx)
IL (1) IL138019A (xx)
RU (1) RU2003133453A (xx)
WO (1) WO1999045654A1 (xx)

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US6940365B2 (en) 2003-07-18 2005-09-06 Rfstream Corporation Methods and apparatus for an improved discrete LC filter
JP4368675B2 (ja) * 2003-12-26 2009-11-18 富士通テン株式会社 通信装置
US8000675B2 (en) * 2004-04-16 2011-08-16 Sony Ericsson Mobile Communications Ab Low cost method for receiving broadcast channels with a cellular terminal
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US7333053B2 (en) * 2004-04-29 2008-02-19 Novariant Inc. Signal path system and method for a ranging signal receiver
CN101138153A (zh) * 2005-03-11 2008-03-05 Rf信息公司 射频电感-电容滤波器电路拓扑
WO2006099071A2 (en) * 2005-03-11 2006-09-21 Rfstream Corporation A wideband tuning circuit
US7358795B2 (en) * 2005-03-11 2008-04-15 Rfstream Corporation MOSFET temperature compensation current source
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JP2007295457A (ja) * 2006-04-27 2007-11-08 Matsushita Electric Ind Co Ltd 受信装置とこれを用いた電子機器
EP2034684B1 (en) 2006-06-23 2014-06-04 NEC Corporation Wireless communication apparatus and method for switching modulation schemes thereof
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Also Published As

Publication number Publication date
US6359940B1 (en) 2002-03-19
KR20010041539A (ko) 2001-05-25
HK1033718A1 (en) 2001-09-14
CN1292172A (zh) 2001-04-18
JP4354637B2 (ja) 2009-10-28
AU3065699A (en) 1999-09-20
CA2321582A1 (en) 1999-09-10
AU769051B2 (en) 2004-01-15
ES2260904T3 (es) 2006-11-01
RU2003133453A (ru) 2005-04-20
IL138019A0 (en) 2001-10-31
KR100581453B1 (ko) 2006-05-23
CN1521952A (zh) 2004-08-18
DE69929680D1 (de) 2006-04-13
JP2009260978A (ja) 2009-11-05
EP1060572B1 (en) 2006-02-01
CN100377498C (zh) 2008-03-26
EP1060572A1 (en) 2000-12-20
IL138019A (en) 2005-11-20
WO1999045654A1 (en) 1999-09-10
DE69929680T2 (de) 2006-11-02
CN1158784C (zh) 2004-07-21
BR9908440A (pt) 2000-12-05
CA2321582C (en) 2009-11-17
JP2002506314A (ja) 2002-02-26

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20120302