WO2009066558A1 - 無線受信装置及び無線タグ通信装置 - Google Patents

無線受信装置及び無線タグ通信装置 Download PDF

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Publication number
WO2009066558A1
WO2009066558A1 PCT/JP2008/069979 JP2008069979W WO2009066558A1 WO 2009066558 A1 WO2009066558 A1 WO 2009066558A1 JP 2008069979 W JP2008069979 W JP 2008069979W WO 2009066558 A1 WO2009066558 A1 WO 2009066558A1
Authority
WO
WIPO (PCT)
Prior art keywords
reception
communication
signal
wireless
mixer
Prior art date
Application number
PCT/JP2008/069979
Other languages
English (en)
French (fr)
Inventor
Takuya Nagai
Original Assignee
Brother Kogyo Kabushiki Kaisha
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 Brother Kogyo Kabushiki Kaisha filed Critical Brother Kogyo Kabushiki Kaisha
Publication of WO2009066558A1 publication Critical patent/WO2009066558A1/ja

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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
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/389—Demodulator circuits; Receiver circuits with separate demodulation for the phase and amplitude components

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

　可及的に簡単な構成により直交検波を行い得る無線受信装置を提供する。 　第１の回路状態において受信信号の位相を９０°変更させて受信ミキサ５０へ入力させると共に、第２の回路状態において受信信号の位相を変更させずに受信ミキサ５０へ入力させる位相変更回路４８と、その位相変更回路４８を第１の回路状態にした場合における第１の通信に関する受信信号の処理を行うと共に、その第１の通信と等価な信号に対して、位相変更回路４８を第２の回路状態にした場合における第２の通信に関する受信信号の処理を行う受信制御部６４と、第１の通信及び第２の通信それぞれにおける受信ミキサ５０の出力に基づいて信号処理を行う信号処理部６６とを、備えたものであることから、単一のミキサ５０を備えた構成により好適に直交検波を行うことができる。
PCT/JP2008/069979 2007-11-22 2008-10-31 無線受信装置及び無線タグ通信装置 WO2009066558A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-303147 2007-11-22
JP2007303147A JP2009130604A (ja) 2007-11-22 2007-11-22 無線受信装置及び無線タグ通信装置

Publications (1)

Publication Number Publication Date
WO2009066558A1 true WO2009066558A1 (ja) 2009-05-28

Family

ID=40667383

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/069979 WO2009066558A1 (ja) 2007-11-22 2008-10-31 無線受信装置及び無線タグ通信装置

Country Status (2)

Country Link
JP (1) JP2009130604A (ja)
WO (1) WO2009066558A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2421214A1 (fr) * 2010-08-18 2012-02-22 The Swatch Group Research and Development Ltd. Récepteur de signaux radiofréquences FSK à faible débit et à conversion directe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321549A (en) * 1980-05-06 1982-03-23 The United States Of America As Represented By The Secretary Of The Navy Switching quadrature detector
JPH0738463A (ja) * 1993-07-16 1995-02-07 Sharp Corp 移動体識別システムに用いられる質問装置
JP2003333116A (ja) * 2002-05-09 2003-11-21 Nec Corp ダイレクトコンバージョン受信機
WO2004088837A2 (en) * 2003-03-28 2004-10-14 Andrew Corporation Doherty amplifier with output hybrid coupler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321549A (en) * 1980-05-06 1982-03-23 The United States Of America As Represented By The Secretary Of The Navy Switching quadrature detector
JPH0738463A (ja) * 1993-07-16 1995-02-07 Sharp Corp 移動体識別システムに用いられる質問装置
JP2003333116A (ja) * 2002-05-09 2003-11-21 Nec Corp ダイレクトコンバージョン受信機
WO2004088837A2 (en) * 2003-03-28 2004-10-14 Andrew Corporation Doherty amplifier with output hybrid coupler

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2421214A1 (fr) * 2010-08-18 2012-02-22 The Swatch Group Research and Development Ltd. Récepteur de signaux radiofréquences FSK à faible débit et à conversion directe
KR101274358B1 (ko) * 2010-08-18 2013-06-13 더 스와치 그룹 리서치 앤 디벨롭먼트 엘티디 저속 직접 변환 ｆｓｋ 라디오 주파수 신호 수신기
US8781031B2 (en) 2010-08-18 2014-07-15 The Swatch Group Research And Development Ltd. Low rate, direct conversion FSK radio-frequency signal receivers
TWI552551B (zh) * 2010-08-18 2016-10-01 史華曲集團研發有限公司 低速率直接轉換ｆｓｋ射頻信號接收器

Also Published As

Publication number Publication date
JP2009130604A (ja) 2009-06-11

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