ZA969158B - Communication system. - Google Patents

Communication system.

Info

Publication number
ZA969158B
ZA969158B ZA9609158A ZA969158A ZA969158B ZA 969158 B ZA969158 B ZA 969158B ZA 9609158 A ZA9609158 A ZA 9609158A ZA 969158 A ZA969158 A ZA 969158A ZA 969158 B ZA969158 B ZA 969158B
Authority
ZA
South Africa
Prior art keywords
communication system
communication
Prior art date
Application number
ZA9609158A
Inventor
Anthony Michael David Marvin
Original Assignee
Anthony Michael David Marvin
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 Anthony Michael David Marvin filed Critical Anthony Michael David Marvin
Publication of ZA969158B publication Critical patent/ZA969158B/en

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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
ZA9609158A 1995-10-31 1996-10-31 Communication system. ZA969158B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9522238.6A GB9522238D0 (en) 1995-10-31 1995-10-31 Communication system

Publications (1)

Publication Number Publication Date
ZA969158B true ZA969158B (en) 1997-09-03

Family

ID=10783133

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9609158A ZA969158B (en) 1995-10-31 1996-10-31 Communication system.

Country Status (2)

Country Link
GB (2) GB9522238D0 (en)
ZA (1) ZA969158B (en)

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GB2318939A (en) * 1996-11-01 1998-05-06 Richard James Harvey Infra-red identification device
US8773336B2 (en) 2008-09-05 2014-07-08 Ketra, Inc. Illumination devices and related systems and methods
US9276766B2 (en) 2008-09-05 2016-03-01 Ketra, Inc. Display calibration systems and related methods
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
US8521035B2 (en) 2008-09-05 2013-08-27 Ketra, Inc. Systems and methods for visible light communication
US8674913B2 (en) 2008-09-05 2014-03-18 Ketra, Inc. LED transceiver front end circuitry and related methods
US9509525B2 (en) 2008-09-05 2016-11-29 Ketra, Inc. Intelligent illumination device
WO2010027459A2 (en) 2008-09-05 2010-03-11 Firefly Green Technologies Inc. Optical communication device, method and system
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
US8749172B2 (en) 2011-07-08 2014-06-10 Ketra, Inc. Luminance control for illumination devices
WO2013126585A1 (en) * 2012-02-21 2013-08-29 Ketra, Inc. System and method of extending the communication range in a visible light communication system
US9237620B1 (en) 2013-08-20 2016-01-12 Ketra, Inc. Illumination device and temperature compensation method
US9332598B1 (en) 2013-08-20 2016-05-03 Ketra, Inc. Interference-resistant compensation for illumination devices having multiple emitter modules
US9769899B2 (en) 2014-06-25 2017-09-19 Ketra, Inc. Illumination device and age compensation method
USRE48956E1 (en) 2013-08-20 2022-03-01 Lutron Technology Company Llc Interference-resistant compensation for illumination devices using multiple series of measurement intervals
US9345097B1 (en) 2013-08-20 2016-05-17 Ketra, Inc. 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
US9360174B2 (en) 2013-12-05 2016-06-07 Ketra, Inc. Linear LED illumination device with improved color mixing
US9578724B1 (en) 2013-08-20 2017-02-21 Ketra, Inc. Illumination device and method for avoiding flicker
USRE48955E1 (en) 2013-08-20 2022-03-01 Lutron Technology Company Llc Interference-resistant compensation for illumination devices having multiple emitter modules
US9651632B1 (en) 2013-08-20 2017-05-16 Ketra, Inc. Illumination device and temperature calibration method
US9155155B1 (en) 2013-08-20 2015-10-06 Ketra, Inc. Overlapping measurement sequences for interference-resistant compensation in light emitting diode devices
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
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
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
US9510416B2 (en) 2014-08-28 2016-11-29 Ketra, Inc. LED illumination device and method for accurately controlling the intensity and color point of the illumination device over time
US9392660B2 (en) 2014-08-28 2016-07-12 Ketra, Inc. LED illumination device and calibration method for accurately characterizing the emission LEDs and photodetector(s) included within the LED illumination device
US9237623B1 (en) 2015-01-26 2016-01-12 Ketra, Inc. Illumination device and method for determining a maximum lumens that can be safely produced by the illumination device to achieve a target chromaticity
US9237612B1 (en) 2015-01-26 2016-01-12 Ketra, Inc. Illumination device and method for determining a target lumens that can be safely produced by an illumination device at a present temperature
US9485813B1 (en) 2015-01-26 2016-11-01 Ketra, Inc. Illumination device and method for avoiding an over-power or over-current condition in a power converter
CN107489902B (en) * 2017-08-28 2019-09-03 武汉市金运科技开发有限公司 A kind of Internet of Things bulkhead lamp and its structure setting method
US11272599B1 (en) 2018-06-22 2022-03-08 Lutron Technology Company Llc Calibration procedure for a light-emitting diode light source

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6081306A (en) * 1983-10-07 1985-05-09 日本碍子株式会社 Working helmet
GB2175937B (en) * 1985-06-07 1988-08-17 Anderson Strathclyde Plc Mining machine control system
US4809359A (en) * 1986-12-24 1989-02-28 Dockery Devan T System for extending the effective operational range of an infrared remote control system
US5349463A (en) * 1990-08-17 1994-09-20 Victor Company Of Japan Optical radio repeater with signal quality detection
DE4111736C1 (en) * 1991-04-08 1992-08-27 Mannesmann Ag, 4000 Duesseldorf, De
GB9412031D0 (en) * 1994-06-16 1994-08-03 Iml Ltd Improvements in signalling devices employing line of sight radiation

Also Published As

Publication number Publication date
GB9522238D0 (en) 1996-01-03
GB2307577A (en) 1997-05-28
GB9622650D0 (en) 1997-01-08

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