WO1999053732A1 - Dual-use electronic transceiver set for wireless data networks - Google Patents

Dual-use electronic transceiver set for wireless data networks Download PDF

Info

Publication number
WO1999053732A1
WO1999053732A1 PCT/US1999/008432 US9908432W WO9953732A1 WO 1999053732 A1 WO1999053732 A1 WO 1999053732A1 US 9908432 W US9908432 W US 9908432W WO 9953732 A1 WO9953732 A1 WO 9953732A1
Authority
WO
WIPO (PCT)
Prior art keywords
lamp
inverter
ballast
utility
frequency
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/US1999/008432
Other languages
English (en)
French (fr)
Inventor
Steven B. Leeb
George B. Hovorka
Deron Jackson
Elmer C. Lupton
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.)
Talking Lights LLC
Original Assignee
Talking Lights LLC
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
Priority claimed from US09/292,126 external-priority patent/US6504633B1/en
Priority claimed from US09/291,706 external-priority patent/US6198230B1/en
Priority claimed from US09/291,709 external-priority patent/US6400482B1/en
Application filed by Talking Lights LLC filed Critical Talking Lights LLC
Priority to EP99917593A priority Critical patent/EP1072172A1/en
Priority to CA002327710A priority patent/CA2327710A1/en
Priority to AU35677/99A priority patent/AU3567799A/en
Priority to JP2000544164A priority patent/JP2002511727A/ja
Publication of WO1999053732A1 publication Critical patent/WO1999053732A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H04B10/1143—Bidirectional transmission

Definitions

  • An inverter is connected to receive power from the rectifier to create a high frequency alternating wave form, the output of the inverter forming an input to the lamp. It is preferred that the inverter include means for varying the frequency of the voltage produced by the inverter. It is also preferred that the inverter is operated with zero-voltage or zero current switching.
  • the present invention pertains, in part, to electronic circuits capable of controlling and modulating the arc current in a lamp.
  • the circuits include means to draw power from a direct or alternating (utility) source.
  • the circuits further include means to control or limit the magnitude of the current flowing in a lamp or collection of lamps.
  • the circuits further include means to vary the current in the lamp to encode information in the lamp light with no visible flicker.
  • a system that is capable of controlling the current in a discharge or fluorescent lamp.
  • a rectifier circuit is used to draw power from the AC utility.
  • the current drawn from the AC utility by the rectifier circuit is actively controlled to have the same shape and phase, but possibly a different amplitude, as the AC utility voltage waveform, ensuring near- unity-power- factor operation.
  • the power drawn from the AC utility is used to create a predominantly DC output voltage with little alternating or ripple voltage.
  • FIGS. 11a and l ib are graphs that show a comparison of sent and received encoded bits respectively in a prototype system.
  • inverter configurations all typically drive the load with a predominantly sinusoidal arc current.
  • Other inverter configurations could be used, at the risk of increasing the lamp current crest factor, to drive a current consisting of the sum of two or more distinct carrier frequency sinusoids.
  • Each of these sinewaves could be modulated with a different information signal, enabling the possibility of using a single lamp to send multiple channels of information, for which a receiver could individually tune and detect.
  • the modulated lamp light is detected and decoded by a receiver circuit.
  • This receiver may take the form of a portable device where received information is displayed on a liquid-crystal display (LCD) 90 as shown in Figure 10.
  • a photodetector 92 is used to detect the light output of a fluorescent lamp 94.
  • FIG. 11a shows the transmitter waveform that is used to modulate the frequency of the fluorescent lamp ballast, zero volts corresponds to a frequency of 36 kHz and 15 volts corresponds to 40 kHz.
  • Fig. l ib shows resulting output of the PLL using the non-linear saturating feedback loop. The output very accurately tracks the frequency changes in the lamp light with virtually none of the settling characteristics of a typical PLL.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
PCT/US1999/008432 1998-04-15 1999-04-15 Dual-use electronic transceiver set for wireless data networks Ceased WO1999053732A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP99917593A EP1072172A1 (en) 1998-04-15 1999-04-15 Dual-use electronic transceiver set for wireless data networks
CA002327710A CA2327710A1 (en) 1998-04-15 1999-04-15 Dual-use electronic transceiver set for wireless data networks
AU35677/99A AU3567799A (en) 1998-04-15 1999-04-15 Dual-use electronic transceiver set for wireless data networks
JP2000544164A JP2002511727A (ja) 1998-04-15 1999-04-15 ワイヤレスネットワークのための多重機能電子送受信装置

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
US8186698P 1998-04-15 1998-04-15
US60/081,866 1998-04-15
US10828798P 1998-11-13 1998-11-13
US60/108,287 1998-11-13
US11537499P 1999-01-11 1999-01-11
US60/115,374 1999-01-11
US09/291,709 1999-04-14
US09/292,126 US6504633B1 (en) 1998-04-15 1999-04-14 Analog and digital electronic receivers for dual-use wireless data networks
US09/292,126 1999-04-14
US09/291,706 1999-04-14
US09/291,706 US6198230B1 (en) 1998-04-15 1999-04-14 Dual-use electronic transceiver set for wireless data networks
US09/291,709 US6400482B1 (en) 1998-04-15 1999-04-14 Communication system

Publications (1)

Publication Number Publication Date
WO1999053732A1 true WO1999053732A1 (en) 1999-10-21

Family

ID=27557236

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US1999/008432 Ceased WO1999053732A1 (en) 1998-04-15 1999-04-15 Dual-use electronic transceiver set for wireless data networks
PCT/US1999/008437 Ceased WO1999053633A1 (en) 1998-04-15 1999-04-15 Analog and digital electronic tranceivers for dual-use wireless data networks

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/US1999/008437 Ceased WO1999053633A1 (en) 1998-04-15 1999-04-15 Analog and digital electronic tranceivers for dual-use wireless data networks

Country Status (5)

Country Link
EP (2) EP1072109A1 (https=)
JP (2) JP2002511727A (https=)
AU (2) AU3567799A (https=)
CA (2) CA2327710A1 (https=)
WO (2) WO1999053732A1 (https=)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6333605B1 (en) 1999-11-02 2001-12-25 Energy Savings, Inc. Light modulating electronic ballast
WO2002047292A1 (en) * 2000-12-08 2002-06-13 Motorola, Inc., A Corporation Of The State Of Delaware Interference -robust coded-modulation scheme for optical communications and method for modulating illumination for optical communications
US6865347B2 (en) 2001-01-05 2005-03-08 Motorola, Inc. Optically-based location system and method for determining a location at a structure
JP2008514083A (ja) * 2004-09-20 2008-05-01 ゼットエックストーク・アセッツ・リミテッド・ライアビリティ・カンパニー 自由空間光伝送用送信装置

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AUPQ055999A0 (en) * 1999-05-25 1999-06-17 Silverbrook Research Pty Ltd A method and apparatus (npage01)
US6957768B1 (en) 1999-05-25 2005-10-25 Silverbrook Research Pty Ltd Computer system control via interface surface
JP2003115803A (ja) 2001-10-09 2003-04-18 Nec Corp 発光装置及び通信システム
US6864634B2 (en) * 2002-04-30 2005-03-08 Koninklijke Philips Electronics N.V. Method and system for transmitting and displaying information on a wireless device using plastic electronics
FR2858892A1 (fr) * 2003-08-14 2005-02-18 Novatys Systeme de commande a distance par analyse de signaux lumineux issus d'une source de lumiere habituellement destinee a l'eclairage
JP4590863B2 (ja) * 2003-12-15 2010-12-01 パナソニック電工株式会社 光伝送システム
JP4534474B2 (ja) * 2003-12-15 2010-09-01 パナソニック電工株式会社 放電灯点灯装置および光伝送システム
JP4534475B2 (ja) * 2003-12-15 2010-09-01 パナソニック電工株式会社 光伝送システム
GB0410424D0 (en) * 2004-05-08 2004-06-16 Herber Ltd Communications system
CN101026413B (zh) * 2006-02-17 2012-01-04 华为技术有限公司 照明光无线通信系统
CN101395826B (zh) * 2006-03-02 2012-04-11 皇家飞利浦电子股份有限公司 照明设备
JP4609362B2 (ja) * 2006-03-28 2011-01-12 パナソニック電工株式会社 照明光伝送システム
JP4872682B2 (ja) * 2007-01-26 2012-02-08 パナソニック電工株式会社 照明光伝送システム
JP2010541153A (ja) * 2007-09-26 2010-12-24 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 光源を用いてデータを通信するための方法及びデバイス
US8693878B2 (en) * 2008-12-04 2014-04-08 Koninklijke Philips N.V. Illumination device and method for embedding a data signal in a luminance output using AC driven light sources
TWI401995B (zh) * 2009-06-06 2013-07-11 Anteya Technology Corp Power switch switching dimmer and its LED device
RU2531639C2 (ru) * 2009-06-24 2014-10-27 Конинклейке Филипс Электроникс Н.В. Способ и устройство для программирования микроконтроллера
WO2011001392A2 (en) * 2009-07-03 2011-01-06 Koninklijke Philips Electronics N.V. Method and system for asynchronous lamp identification
ES2668280T3 (es) * 2010-10-20 2018-05-17 Philips Lighting Holding B.V. Modulación para transmisión de luz codificada
EP2509398A1 (en) * 2011-04-07 2012-10-10 Koninklijke Philips Electronics N.V. Modulation for coded light transmission
GB2496379A (en) * 2011-11-04 2013-05-15 Univ Edinburgh A freespace optical communication system which exploits the rolling shutter mechanism of a CMOS camera
WO2013153476A1 (en) * 2012-04-13 2013-10-17 Koninklijke Philips N.V. Method and device for visible light communication
GB201219563D0 (en) * 2012-10-31 2012-12-12 Heber Ltd Device and system for diagnostic communications by light
RU2015149619A (ru) * 2013-04-19 2017-05-24 Филипс Лайтинг Холдинг Б.В. Восстановление синхронизации из самосинхронизирующегося кодированного светового сигнала

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US3156826A (en) * 1961-06-14 1964-11-10 Engelhard Hanovia Inc Light communication system employing superimposed currents applied to a high intensity light source
US3194965A (en) * 1962-02-19 1965-07-13 Ass Elect Ind Visual signalling systems utilising modulated light
EP0456462A2 (en) * 1990-05-09 1991-11-13 Michael William Smith Electronic display device, display setting apparatus and display system
US5363020A (en) * 1993-02-05 1994-11-08 Systems And Service International, Inc. Electronic power controller
EP0698310A1 (en) * 1994-02-10 1996-02-28 Koninklijke Philips Electronics N.V. High frequency ac/ac converter with power factor correction
DE19607468A1 (de) * 1996-02-28 1997-09-04 Michael Scharf Lichtsignalsystem zur Übertragung von Informationen durch Entladungs- bzw. Bogenlampenlichtimpulse
FR2751491A1 (fr) * 1996-07-16 1998-01-23 Soc Et Ind Mecaniques Et Elect Systeme et procede de transmission de messages, notamment pour la mise a jour de donnees enregistrees dans des etiquettes electroniques

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US3156826A (en) * 1961-06-14 1964-11-10 Engelhard Hanovia Inc Light communication system employing superimposed currents applied to a high intensity light source
US3194965A (en) * 1962-02-19 1965-07-13 Ass Elect Ind Visual signalling systems utilising modulated light
EP0456462A2 (en) * 1990-05-09 1991-11-13 Michael William Smith Electronic display device, display setting apparatus and display system
US5363020A (en) * 1993-02-05 1994-11-08 Systems And Service International, Inc. Electronic power controller
EP0698310A1 (en) * 1994-02-10 1996-02-28 Koninklijke Philips Electronics N.V. High frequency ac/ac converter with power factor correction
DE19607468A1 (de) * 1996-02-28 1997-09-04 Michael Scharf Lichtsignalsystem zur Übertragung von Informationen durch Entladungs- bzw. Bogenlampenlichtimpulse
FR2751491A1 (fr) * 1996-07-16 1998-01-23 Soc Et Ind Mecaniques Et Elect Systeme et procede de transmission de messages, notamment pour la mise a jour de donnees enregistrees dans des etiquettes electroniques

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BUFFALOE T K ET AL: "FIAT LUX: A FLUORESCENT LAMP TRANSCEIVER", APEC '97. TWELTH ANNUAL APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, ATLANTA, FEB. 23 - 27, 1997, vol. 2, no. CONF. 12, 23 February 1997 (1997-02-23), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 1037 - 1041, XP000731063, ISBN: 0-7803-3705-0 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6333605B1 (en) 1999-11-02 2001-12-25 Energy Savings, Inc. Light modulating electronic ballast
WO2002047292A1 (en) * 2000-12-08 2002-06-13 Motorola, Inc., A Corporation Of The State Of Delaware Interference -robust coded-modulation scheme for optical communications and method for modulating illumination for optical communications
US6542270B2 (en) 2000-12-08 2003-04-01 Motorola, Inc. Interference-robust coded-modulation scheme for optical communications and method for modulating illumination for optical communications
US6865347B2 (en) 2001-01-05 2005-03-08 Motorola, Inc. Optically-based location system and method for determining a location at a structure
JP2008514083A (ja) * 2004-09-20 2008-05-01 ゼットエックストーク・アセッツ・リミテッド・ライアビリティ・カンパニー 自由空間光伝送用送信装置

Also Published As

Publication number Publication date
AU3568199A (en) 1999-11-01
JP2002511727A (ja) 2002-04-16
JP2002511698A (ja) 2002-04-16
EP1072109A1 (en) 2001-01-31
CA2327720A1 (en) 1999-10-21
WO1999053633A1 (en) 1999-10-21
EP1072172A1 (en) 2001-01-31
AU3567799A (en) 1999-11-01
CA2327710A1 (en) 1999-10-21

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