JP4577577B2 - 光通信システム - Google Patents
光通信システム Download PDFInfo
- Publication number
- JP4577577B2 JP4577577B2 JP2006089009A JP2006089009A JP4577577B2 JP 4577577 B2 JP4577577 B2 JP 4577577B2 JP 2006089009 A JP2006089009 A JP 2006089009A JP 2006089009 A JP2006089009 A JP 2006089009A JP 4577577 B2 JP4577577 B2 JP 4577577B2
- Authority
- JP
- Japan
- Prior art keywords
- optical
- tag
- identification information
- light
- reader
- 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.)
- Expired - Fee Related
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Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/1097—Optical sensing of electronic memory record carriers, such as interrogation of RFIDs with an additional optical interface
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
- G06K19/0728—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs the arrangement being an optical or sound-based communication interface
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Health & Medical Sciences (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Artificial Intelligence (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Optical Communication System (AREA)
Description
また、光IDタグにおける筐体の1つの面を、光IDリーダに対する光ビームの入射面とし、その入射面に対する反射板及び液晶パネルの実装面積を大きく確保することができ、このようにしても、上記状況下にかかわらず、識別情報を適切に伝達させ得る光通信システムを実現することができる。
図1において、本実施の形態による光通信システム1の全体構成を示し、複数の光IDタグ2i(i=1、2、3、……、又はm(mは整数))と、複数の光IDリーダ3j(j=1、2、3、……、又はn(nは整数))とによって構成される。
次に、光IDタグ21〜2mの構成について説明するが、これら光IDタグ21〜2mの構成は同一であるため、説明の便宜上、ここでは光IDタグ21の構成について図2を用いて説明する。
次に、光IDリーダ31〜3nの構成について説明するが、これら光IDリーダ31〜3nの構成は同一であるため、説明の便宜上、ここでは光IDリーダ31の構成について図6を用いて説明する。
次に、上述した光IDリーダ31における制御回路30の情報抽出処理手順を、図8に示すフローチャートを用いて説明する。但し、ここでは、光IDリーダ31は、光IDタグ21〜2m(図1)のうち光IDタグ21に向けられている、つまり光IDリーダ31による識別情報の読取対象が光IDタグ21とされているものとする。
以上の構成において、この光通信システム1の光IDリーダ3jは、読取操作に応じて乱数を発生し、その乱数に対して固有の発信周波数の光をLED54(図7)から放射させる。
Claims (1)
- 光を通信媒体として、光IDタグと光IDリーダとの間で識別情報を通信する光通信システムであって、
上記光IDタグは、
筐体と、
上記筐体の一面と対向する基板面に配される反射板と、
上記一面と上記反射板との間に配される液晶パネルと、
上記基板面の逆面に配され、上記識別情報が保持されるメモリと、
上記基板面の逆面に配され、上記識別情報に基づいて上記液晶パネルの配向を可変させて上記反射板で反射する反射光を変調する変調回路と
を具え、
上記光IDリーダは、
ユーザ操作に応ずる識別情報の読取命令を受けるごとに、乱数を発生する乱数発生手段と、
上記乱数に対して固有の発信周波数の光を放射する放射手段と、
放射方向から到来する光を光電変換する光電変換手段と、
上記光電変換手段により光電変換された結果得られる信号から、上記発信周波数の信号成分を抽出する抽出手段と、
上記信号成分を復調する復調手段と
を具えることを特徴とする光通信システム。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006089009A JP4577577B2 (ja) | 2006-03-28 | 2006-03-28 | 光通信システム |
US11/716,713 US7606451B2 (en) | 2006-03-28 | 2007-03-12 | Optical communication system, optical reader, and method of reading information |
DE602007006360T DE602007006360D1 (de) | 2006-03-28 | 2007-03-28 | Optisches Kommunikationssystem, optisches Lesegerät und Informationsleseverfahren |
CN2007100918649A CN101046842B (zh) | 2006-03-28 | 2007-03-28 | 光学通信***、光读出器以及读取信息的方法 |
EP07105102A EP1840792B1 (en) | 2006-03-28 | 2007-03-28 | Optical communication system, optical reader, and method of reading information |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006089009A JP4577577B2 (ja) | 2006-03-28 | 2006-03-28 | 光通信システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007266974A JP2007266974A (ja) | 2007-10-11 |
JP4577577B2 true JP4577577B2 (ja) | 2010-11-10 |
Family
ID=38157807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006089009A Expired - Fee Related JP4577577B2 (ja) | 2006-03-28 | 2006-03-28 | 光通信システム |
Country Status (5)
Country | Link |
---|---|
US (1) | US7606451B2 (ja) |
EP (1) | EP1840792B1 (ja) |
JP (1) | JP4577577B2 (ja) |
CN (1) | CN101046842B (ja) |
DE (1) | DE602007006360D1 (ja) |
Families Citing this family (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010034952A (ja) * | 2008-07-30 | 2010-02-12 | Toshiba Corp | 可視光通信システム及び可視光通信方法 |
US9509525B2 (en) | 2008-09-05 | 2016-11-29 | Ketra, Inc. | Intelligent illumination device |
US8471496B2 (en) | 2008-09-05 | 2013-06-25 | Ketra, Inc. | LED calibration systems and related methods |
US8674913B2 (en) | 2008-09-05 | 2014-03-18 | Ketra, Inc. | LED transceiver front end circuitry and related methods |
US8773336B2 (en) | 2008-09-05 | 2014-07-08 | Ketra, Inc. | Illumination devices and related systems and methods |
US8886047B2 (en) | 2008-09-05 | 2014-11-11 | Ketra, Inc. | Optical communication device, method and system |
US10210750B2 (en) | 2011-09-13 | 2019-02-19 | Lutron Electronics Co., Inc. | System and method of extending the communication range in a visible light communication system |
US8456092B2 (en) | 2008-09-05 | 2013-06-04 | Ketra, Inc. | Broad spectrum light source calibration systems and related methods |
US9276766B2 (en) | 2008-09-05 | 2016-03-01 | Ketra, Inc. | Display calibration systems and related methods |
US8521035B2 (en) | 2008-09-05 | 2013-08-27 | Ketra, Inc. | Systems and methods for visible light communication |
US8179787B2 (en) | 2009-01-27 | 2012-05-15 | Smsc Holding S.A.R.L. | Fault tolerant network utilizing bi-directional point-to-point communications links between nodes |
USRE49454E1 (en) | 2010-09-30 | 2023-03-07 | Lutron Technology Company Llc | Lighting control system |
US9386668B2 (en) | 2010-09-30 | 2016-07-05 | Ketra, Inc. | Lighting control system |
DE102011050389B4 (de) | 2011-05-16 | 2021-09-02 | Presens - Precision Sensing Gmbh | Sensoreinheit und Messverfahren |
US8749172B2 (en) | 2011-07-08 | 2014-06-10 | Ketra, Inc. | Luminance control for illumination devices |
WO2013107039A1 (zh) * | 2012-01-20 | 2013-07-25 | Chin To | 辨识对象的***及其方法 |
CN103295054B (zh) * | 2012-02-29 | 2015-08-19 | 深圳光启创新技术有限公司 | 一种光子标签、识别装置及*** |
CN103903041A (zh) * | 2012-12-28 | 2014-07-02 | 北京北大千方科技有限公司 | 光电子标签、光电子标签读写器和光电子标签的读写方法 |
US9237620B1 (en) | 2013-08-20 | 2016-01-12 | Ketra, Inc. | Illumination device and temperature compensation method |
US9360174B2 (en) | 2013-12-05 | 2016-06-07 | Ketra, Inc. | Linear LED illumination device with improved color mixing |
USRE48955E1 (en) | 2013-08-20 | 2022-03-01 | Lutron Technology Company Llc | Interference-resistant compensation for illumination devices having multiple emitter modules |
US9155155B1 (en) | 2013-08-20 | 2015-10-06 | Ketra, Inc. | Overlapping measurement sequences for interference-resistant compensation in light emitting diode devices |
US9769899B2 (en) | 2014-06-25 | 2017-09-19 | Ketra, Inc. | Illumination device and age compensation method |
US9578724B1 (en) | 2013-08-20 | 2017-02-21 | Ketra, Inc. | Illumination device and method for avoiding flicker |
US9345097B1 (en) | 2013-08-20 | 2016-05-17 | Ketra, Inc. | Interference-resistant compensation for illumination devices using multiple series of measurement intervals |
USRE48956E1 (en) | 2013-08-20 | 2022-03-01 | Lutron Technology Company Llc | Interference-resistant compensation for illumination devices using multiple series of measurement intervals |
US9247605B1 (en) | 2013-08-20 | 2016-01-26 | Ketra, Inc. | Interference-resistant compensation for illumination devices |
US9651632B1 (en) | 2013-08-20 | 2017-05-16 | Ketra, Inc. | Illumination device and temperature calibration method |
US9332598B1 (en) | 2013-08-20 | 2016-05-03 | Ketra, Inc. | Interference-resistant compensation for illumination devices having multiple emitter modules |
US9736895B1 (en) | 2013-10-03 | 2017-08-15 | Ketra, Inc. | Color mixing optics for LED illumination device |
US9146028B2 (en) | 2013-12-05 | 2015-09-29 | Ketra, Inc. | Linear LED illumination device with improved rotational hinge |
US9392663B2 (en) | 2014-06-25 | 2016-07-12 | Ketra, Inc. | Illumination device and method for controlling an illumination device over changes in drive current and temperature |
US10161786B2 (en) | 2014-06-25 | 2018-12-25 | Lutron Ketra, Llc | Emitter module for an LED illumination device |
US9557214B2 (en) | 2014-06-25 | 2017-01-31 | Ketra, Inc. | Illumination device and method for calibrating an illumination device over changes in temperature, drive current, and time |
US9736903B2 (en) | 2014-06-25 | 2017-08-15 | Ketra, Inc. | Illumination device and method for calibrating and controlling an illumination device comprising a phosphor converted LED |
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CN104715272B (zh) * | 2015-03-30 | 2017-10-20 | 江苏物联网研究发展中心 | 以光为介质的后向反射调制标签及读写器*** |
US9734371B2 (en) | 2015-03-31 | 2017-08-15 | International Business Machines Corporation | Hybrid tag for radio frequency identification system |
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NO341062B1 (en) | 2016-01-14 | 2017-08-14 | Sintef Tto As | Semi-passive transponder |
CN108241885A (zh) * | 2016-12-27 | 2018-07-03 | 中兴通讯股份有限公司 | 一种无源光电标签 |
US10438105B2 (en) * | 2017-06-27 | 2019-10-08 | Western Digital Technologies, Inc. | Electronic label |
US11272599B1 (en) | 2018-06-22 | 2022-03-08 | Lutron Technology Company Llc | Calibration procedure for a light-emitting diode light source |
CN109039439A (zh) * | 2018-07-02 | 2018-12-18 | 曾昭雄 | 通信方法、装置及终端 |
GB2626208A (en) * | 2023-06-30 | 2024-07-17 | Quantum Base Ltd | A method of authenticating an optically readable security element |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01276086A (ja) * | 1988-04-28 | 1989-11-06 | Yamatake Honeywell Co Ltd | 反射形光電検出装置 |
JPH0341414A (ja) * | 1989-07-07 | 1991-02-21 | Opt Kk | 識別カード |
JP2000004183A (ja) * | 1998-06-12 | 2000-01-07 | Mitsubishi Electric Corp | パッシブ変調方式マイクロ波データキャリアシステム |
JP2000101578A (ja) * | 1998-09-21 | 2000-04-07 | Matsushita Electric Ind Co Ltd | 無線ネットワークシステム |
JP2003060516A (ja) * | 2001-08-15 | 2003-02-28 | Yokohama Rubber Co Ltd:The | 送信機および無線送信システム |
JP2006011948A (ja) * | 2004-06-28 | 2006-01-12 | Ntt Communications Kk | 有指向性型光id装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4916296A (en) * | 1987-10-29 | 1990-04-10 | Jerry R. Iggulden | Light modulating smart card |
IL96764A (en) * | 1990-12-23 | 1994-07-31 | Zuta Marc | Smart card integrated in a wristwatch and having logic unit controlling the automatic identification process and the data transfer |
US6618117B2 (en) * | 1997-07-12 | 2003-09-09 | Silverbrook Research Pty Ltd | Image sensing apparatus including a microcontroller |
US6970916B1 (en) * | 1998-09-11 | 2005-11-29 | L. V. Partners, L.P. | Method for conducting a contest using a network |
US7308207B2 (en) | 2003-11-17 | 2007-12-11 | Raytheon Company | Method for identifying an interrogated object using a dynamic optical tag identification system |
-
2006
- 2006-03-28 JP JP2006089009A patent/JP4577577B2/ja not_active Expired - Fee Related
-
2007
- 2007-03-12 US US11/716,713 patent/US7606451B2/en not_active Expired - Fee Related
- 2007-03-28 DE DE602007006360T patent/DE602007006360D1/de active Active
- 2007-03-28 EP EP07105102A patent/EP1840792B1/en not_active Expired - Fee Related
- 2007-03-28 CN CN2007100918649A patent/CN101046842B/zh not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01276086A (ja) * | 1988-04-28 | 1989-11-06 | Yamatake Honeywell Co Ltd | 反射形光電検出装置 |
JPH0341414A (ja) * | 1989-07-07 | 1991-02-21 | Opt Kk | 識別カード |
JP2000004183A (ja) * | 1998-06-12 | 2000-01-07 | Mitsubishi Electric Corp | パッシブ変調方式マイクロ波データキャリアシステム |
JP2000101578A (ja) * | 1998-09-21 | 2000-04-07 | Matsushita Electric Ind Co Ltd | 無線ネットワークシステム |
JP2003060516A (ja) * | 2001-08-15 | 2003-02-28 | Yokohama Rubber Co Ltd:The | 送信機および無線送信システム |
JP2006011948A (ja) * | 2004-06-28 | 2006-01-12 | Ntt Communications Kk | 有指向性型光id装置 |
Also Published As
Publication number | Publication date |
---|---|
DE602007006360D1 (de) | 2010-06-24 |
JP2007266974A (ja) | 2007-10-11 |
US7606451B2 (en) | 2009-10-20 |
EP1840792A1 (en) | 2007-10-03 |
CN101046842B (zh) | 2010-10-27 |
US20070230322A1 (en) | 2007-10-04 |
CN101046842A (zh) | 2007-10-03 |
EP1840792B1 (en) | 2010-05-12 |
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