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WO2009034753A1 - 赤外線通信用受信装置 - Google Patents

赤外線通信用受信装置 Download PDF

Info

Publication number
WO2009034753A1
WO2009034753A1 PCT/JP2008/060265 JP2008060265W WO2009034753A1 WO 2009034753 A1 WO2009034753 A1 WO 2009034753A1 JP 2008060265 W JP2008060265 W JP 2008060265W WO 2009034753 A1 WO2009034753 A1 WO 2009034753A1
Authority
WO
WIPO (PCT)
Prior art keywords
given
data signal
abrupt noise
lamp
liquid crystal
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2008/060265
Other languages
English (en)
French (fr)
Inventor
Keiji Hayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to US12/452,756 priority Critical patent/US8406632B2/en
Priority to CN200880025175A priority patent/CN101755401A/zh
Publication of WO2009034753A1 publication Critical patent/WO2009034753A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/114—Indoor or close-range type systems
    • H04B10/1141—One-way transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/114—Indoor or close-range type systems
    • H04B10/116—Visible light communication

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Communication System (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

　本発明は、表示装置の光源がＰＷＭ駆動される場合に、データ信号に含まれる突発性ノイズを低減して、誤りなく赤外線通信を行うことを目的とする。 　液晶テレビ（３００）のランプ（３２０）をパルス幅変調駆動または連続駆動のいずれによって駆動するかを決める駆動設定信号が制御部（５０）に与えられると、制御部（５０）は、与えられた駆動設定信号に基づいて、周波数フィルタ部（２０）にレジスタ（５０ｂ）内の閾値を設定する。さらに、ランプ（３２０）からの赤外光が受光されると、波形解析部（３０）から与えられる突発性ノイズの発生頻度（Ｊｆ）に基づいて、設定された閾値を見直す。そして、携帯電話（２００）から送信されるデータ信号に含まれている突発性ノイズを周波数フィルタ部（２０）によって低減した後、データ信号を液晶テレビ（３００）に送信する。                                                                                 
PCT/JP2008/060265 2007-09-10 2008-06-04 赤外線通信用受信装置 Ceased WO2009034753A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/452,756 US8406632B2 (en) 2007-09-10 2008-06-04 Infrared communications receiver
CN200880025175A CN101755401A (zh) 2007-09-10 2008-06-04 红外线通信用接收装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007234659 2007-09-10
JP2007-234659 2007-09-10

Publications (1)

Publication Number Publication Date
WO2009034753A1 true WO2009034753A1 (ja) 2009-03-19

Family

ID=40451765

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/060265 Ceased WO2009034753A1 (ja) 2007-09-10 2008-06-04 赤外線通信用受信装置

Country Status (3)

Country Link
US (1) US8406632B2 (ja)
CN (1) CN101755401A (ja)
WO (1) WO2009034753A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2282301A3 (en) * 2009-08-04 2011-10-12 Kabushiki Kaisha Toshiba Infrared ray receiver and information processor
CN109031325A (zh) * 2018-06-08 2018-12-18 珠海市微半导体有限公司 一种基于红外调制的障碍物检测装置、检测方法及机器人

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100094910A (ko) * 2009-02-19 2010-08-27 삼성전자주식회사 광 통신용 조명 제어 장치
DE102013112882B4 (de) 2013-11-21 2019-05-09 Osram Opto Semiconductors Gmbh Strahlungsempfängervorrichtung
CN116153045A (zh) * 2022-12-16 2023-05-23 深圳市越宏普智能光电科技有限公司 一种红外收发一体传感器、门控系统及其控制方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08149586A (ja) * 1994-11-16 1996-06-07 Hori Denki Kk ゲーム機用リモコン受信装置
JPH09284231A (ja) * 1996-04-12 1997-10-31 Sharp Corp 光信号復調装置
JP2002238088A (ja) * 2001-02-09 2002-08-23 New Japan Radio Co Ltd リモコン受光装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6528782B1 (en) * 1996-08-20 2003-03-04 Schott Donnelly Llc Chromogenic light filter and controls
US6801003B2 (en) * 2001-03-13 2004-10-05 Color Kinetics, Incorporated Systems and methods for synchronizing lighting effects
JP2005502895A (ja) * 2001-09-19 2005-01-27 ジュール マイクロシステムズ カナダ インコーポレイテッド 信号整合フィルタリングを組み込んだ分光計
JP2006041657A (ja) * 2004-07-23 2006-02-09 Sony Corp 赤外線通信システムおよび赤外線信号受光装置
US7292616B2 (en) * 2005-02-09 2007-11-06 Ultratech, Inc. CO2 laser stabilization systems and methods
JP2006352394A (ja) 2005-06-15 2006-12-28 Sharp Corp リモコン操作システム
US20070268236A1 (en) * 2006-05-17 2007-11-22 Neil Morrow Methods and systems for LCD backlight color control
US8552659B2 (en) * 2007-08-07 2013-10-08 Koninklijke Philips N.V. Method and apparatus for discriminating modulated light in a mixed light system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08149586A (ja) * 1994-11-16 1996-06-07 Hori Denki Kk ゲーム機用リモコン受信装置
JPH09284231A (ja) * 1996-04-12 1997-10-31 Sharp Corp 光信号復調装置
JP2002238088A (ja) * 2001-02-09 2002-08-23 New Japan Radio Co Ltd リモコン受光装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2282301A3 (en) * 2009-08-04 2011-10-12 Kabushiki Kaisha Toshiba Infrared ray receiver and information processor
CN109031325A (zh) * 2018-06-08 2018-12-18 珠海市微半导体有限公司 一种基于红外调制的障碍物检测装置、检测方法及机器人

Also Published As

Publication number Publication date
CN101755401A (zh) 2010-06-23
US8406632B2 (en) 2013-03-26
US20100119233A1 (en) 2010-05-13

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