HK1016765A1 - Dual-band data communication device - Google Patents

Dual-band data communication device

Info

Publication number
HK1016765A1
HK1016765A1 HK99101673A HK99101673A HK1016765A1 HK 1016765 A1 HK1016765 A1 HK 1016765A1 HK 99101673 A HK99101673 A HK 99101673A HK 99101673 A HK99101673 A HK 99101673A HK 1016765 A1 HK1016765 A1 HK 1016765A1
Authority
HK
Hong Kong
Prior art keywords
dual
communication device
data communication
band data
band
Prior art date
Application number
HK99101673A
Other languages
English (en)
Inventor
Naoyuki Yamamoto
Original Assignee
Matsushita Electric Ind Co Ltd
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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of HK1016765A1 publication Critical patent/HK1016765A1/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
    • H04B1/0003—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
    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transceivers (AREA)
HK99101673A 1997-05-16 1999-04-16 Dual-band data communication device HK1016765A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9141141A JPH10322407A (ja) 1997-05-16 1997-05-16 デュアルバンドデータ通信装置

Publications (1)

Publication Number Publication Date
HK1016765A1 true HK1016765A1 (en) 1999-11-05

Family

ID=15285131

Family Applications (1)

Application Number Title Priority Date Filing Date
HK99101673A HK1016765A1 (en) 1997-05-16 1999-04-16 Dual-band data communication device

Country Status (6)

Country Link
US (1) US6310863B1 (xx)
EP (1) EP0878916B1 (xx)
JP (1) JPH10322407A (xx)
CN (1) CN1110149C (xx)
DE (1) DE69831112T2 (xx)
HK (1) HK1016765A1 (xx)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031851A1 (fr) * 1997-12-17 1999-06-24 Kabushiki Kaisha Kenwood Recepteur
JP3326133B2 (ja) 1999-04-02 2002-09-17 松下電器産業株式会社 無線装置及び方法
US6992990B2 (en) * 2000-07-17 2006-01-31 Sony Corporation Radio communication apparatus
JP2002208869A (ja) * 2001-01-09 2002-07-26 Sony Corp マルチバンド無線信号送受信装置
US20030189974A1 (en) * 2001-05-03 2003-10-09 Chester Ferry Wireless full-duplex transmission system
KR100433631B1 (ko) * 2002-04-03 2004-05-31 한국전자통신연구원 알에프를 공통으로 하는 이중 변복조 고주파 송수신 장치
EP1507334A1 (fr) 2003-08-12 2005-02-16 STMicroelectronics S.A. Composant électronique permettant notamment le décodage de signaux modulés par une modulation numérique en quadrature sur un grand nombre de porteuses orthogonales
US7266352B2 (en) * 2004-05-28 2007-09-04 Wionics Research Multiple band RF transmitters and receivers having independently variable RF and IF local oscillators and independent high-side and low-side RF local oscillators
CN101103538B (zh) * 2005-01-14 2014-06-04 日本电气株式会社 通信设备、多频带接收机及接收机
US7787843B2 (en) * 2005-03-29 2010-08-31 Broadcom Corporation Multiple band direct conversion radio frequency transceiver integrated circuit
US8644238B2 (en) * 2009-04-27 2014-02-04 Nokia Siemens Networks Oy Demodulation reference signals in a communication system
US8750174B2 (en) * 2012-03-30 2014-06-10 Broadcom Corporation Dual carrier separation
CN116545488A (zh) * 2017-03-28 2023-08-04 高通股份有限公司 基于距离的传输参数调节
US10305611B1 (en) 2018-03-28 2019-05-28 Qualcomm Incorporated Proximity detection using a hybrid transceiver

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0654923B2 (ja) * 1985-04-09 1994-07-20 日本電気株式会社 変復調装置の動作制御方式
JPH05160863A (ja) * 1991-12-05 1993-06-25 Sony Corp Ｍｓｋ変調信号の復調装置
JP2840496B2 (ja) * 1992-02-26 1998-12-24 三洋電機株式会社 デュアルバンド無線通信装置
US5392300A (en) * 1992-11-10 1995-02-21 Motorola, Inc. Dual mode radio communication unit
JPH06296186A (ja) * 1993-02-12 1994-10-21 Matsushita Electric Ind Co Ltd Ｐｓｋ復調装置及びｑｐｓｋ復調装置
JP3503964B2 (ja) * 1993-09-21 2004-03-08 株式会社東芝 無線機
JP2794680B2 (ja) * 1994-02-07 1998-09-10 日本無線株式会社 スーパーヘテロダイン受信方式
US5521938A (en) * 1994-07-01 1996-05-28 Motorola, Inc. Apparatus for performing frequency conversion in a communication system
KR0143023B1 (ko) * 1994-08-03 1998-08-01 김광호 디지탈 무선전화기의 송수신 신호처리 회로
JPH08223073A (ja) * 1995-02-14 1996-08-30 Fujitsu Ltd デュアルバンド無線通信装置
DE69630546T2 (de) * 1995-05-16 2004-08-05 Matsushita Electric Industrial Co., Ltd., Kadoma Spannungsgesteuerter Oszillator mit steuerbarem Frequenzband
US5974305A (en) * 1997-05-15 1999-10-26 Nokia Mobile Phones Limited Dual band architectures for mobile stations

Also Published As

Publication number Publication date
DE69831112T2 (de) 2006-04-13
JPH10322407A (ja) 1998-12-04
CN1110149C (zh) 2003-05-28
CN1201304A (zh) 1998-12-09
EP0878916A3 (en) 2003-10-22
EP0878916B1 (en) 2005-08-10
DE69831112D1 (de) 2005-09-15
EP0878916A2 (en) 1998-11-18
US6310863B1 (en) 2001-10-30

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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: 20100515