WO2008065607A2 - Intrinsic flux sensing - Google Patents
Intrinsic flux sensing Download PDFInfo
- Publication number
- WO2008065607A2 WO2008065607A2 PCT/IB2007/054801 IB2007054801W WO2008065607A2 WO 2008065607 A2 WO2008065607 A2 WO 2008065607A2 IB 2007054801 W IB2007054801 W IB 2007054801W WO 2008065607 A2 WO2008065607 A2 WO 2008065607A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light emitting
- emitting element
- remote control
- lighting system
- control device
- Prior art date
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
- H04B10/1143—Bidirectional transmission
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0435—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by remote control means
-
- 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
- H04B10/1149—Arrangements for indoor wireless networking of information
-
- 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
- H04B10/40—Transceivers
- H04B10/43—Transceivers using a single component as both light source and receiver, e.g. using a photoemitter as a photoreceiver
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/19—Controlling the light source by remote control via wireless transmission
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
- H05B45/12—Controlling the intensity of the light using optical feedback
Definitions
- the invention relates to the field of lighting systems.
- the invention relates to a lighting system for communication with a remote control device, a communication and switching circuit for a lighting system, a remote control device, a method for communication of a lighting system with a remote control device, a computer-readable medium, a processor and a program element.
- LEDs light emitting diodes
- These LEDs define an area in the CIE xy-colour-space, which shows the colour that can be realized by the weighted linear combination of these LEDs, which are for example red, green and blue LEDs.
- phosphor-ceramics colour conversion may be a good way for generating the different required colours.
- a simple on/off switch for these devices may not allow the use of all possibilities in these lamps.
- a remote control may be used for remote controlling of such a multi-colour- LED-lamp.
- a sensor may have to be implemented into the lighting system. On the other hand such a detector or sensor may not provide bidirectional communication between the lighting system and the remote control device.
- the invention provides a lighting system for communication with a remote control device, a communication and switching circuit for a lighting system, a method for communication of a lighting system with a remote control device, a processor, a computer-readable medium, a remote control device and a program element with the features according to the independent claims.
- a lighting system for communication with a remote control device comprising a light emitting element and a switching element for switching the light emitting element between a detection mode and an emission mode, wherein, when being in the emission mode, the light emitting element is adapted for emitting light. Furthermore, when being in the detection mode, the light emitting element is adapted for detecting a control signal from a remote control device.
- the lighting system is adapted for emitting a communication signal to the remote control device.
- the lighting system may be switched between an illumination or emission mode and a detection mode.
- the lighting system may be used for illuminating its surrounding or for transmitting a communication signal.
- the lighting system may be used for detecting a control signal transmitted from the remote control device. The detection of the control signal is performed by the light emitting element itself. An extra sensor or detector is thus not necessary.
- the light emitting element is adapted for emitting the communication signal to the remote control device.
- the communication signal may comprise information relating to a working condition of the light emitting element.
- the light emitting element itself may transmit data to the remote control device.
- the data relates to, for example, static colour point information, or dynamic colour point information of the light which is emitted by the light emitting element.
- the communication signal may, according to another exemplary embodiment of the invention, comprise information about the status of the lamp selected from the group consisting of a dimmer control, a starting point (or switch on time), a stopping point (or switch off time), lamp identification, a use-pattern, lamp diagnosis data, and power consumption.
- the use-pattern may comprise the on/off-time of the lamp or information about a preferred colour at a certain time.
- control signal comprises items to program the lighting system selected from the group consisting of static colour point information, dynamic colour point information, a dimmer control signal, a start signal, a stop signal, a lamp identification signal and the maximum allowed power consumption of the lamp system.
- the current working condition may be transmitted to the remote control device via the communication signal from the light emitting element.
- a working condition which has to be met may be transmitted from the remote control device to the light emitting element and therefore to the lighting system. In a following step, this (future) working condition may be set up by the lighting system.
- the start signal and the stop signal for example comprise time stamp information for start and stop of a dynamic colour point sequence, respectively.
- the dynamic colour point information may be adapted for controlling or triggering an individual illumination sequence of the lighting system.
- the lighting system further comprises a modulation unit adapted for modulating the communication signal according to a modulation scheme.
- a fast and effective data transmission may be provided from a lighting system to the remote control device.
- a modulation scheme is selected from the group consisting of pulse width modulation, pulse position modulation, pulse amplitude modulation or pulse density modulation.
- the lighting system further comprises a transmission unit for emitting the communication signal to the remote control device, wherein the transmission unit comprises a radio frequency transmitter module.
- the communication from the lighting system to the remote control device may be performed by an RF downlink.
- the communication signal via an RF-module, communication by the RF-module and simultaneous illumination by the light emitting element may be provided.
- the light emitting element is a light emitting diode (LED).
- the light emitting element comprises one string or several strings of light emitting diodes or a combination of one or several LED string with one or several individual LEDs. Furthermore, the light emitting element may comprise a whole two-dimensional array of light emitting diodes.
- the lighting system further comprises an amplifier and a driving circuit, wherein the switching element is a Tx/Rx-switch adapted for providing a disconnection of the light emitting element from the driving circuit and a connection to the amplifier.
- Tx/Rx-switch is a short form for ,,transmitt-receive- switch".
- a communication and switching circuit for a lighting system comprising a switching element for switching a light emitting element between a detection mode and an emission mode, a driving circuit for driving the light emitting element such that the light emitting element emits light when being in the emission mode, a sampling circuit for providing a fast sampling of a control signal detected by the light emitting element when being in the detection mode, wherein the communication and switching circuit is adapted for generating a communication signal for a remote control device.
- a communication and switching circuit for a lighting system may be provided, which is adapted for driving a LED for illuminating the surrounding. Furthermore, the circuit is adapted for switching the LED into a detection mode, in which the LED is used for detecting a signal from a remote control device. Therefore, no extra sensor or detector may be necessary for acquisition of the control signal. Furthermore, no extra transmitter for generating a signal which is then transmitted to the remote control device may be necessary.
- the sampling circuit comprises an amplifier and an analog-to-digital converter.
- the communication and switching circuit comprises a processor and a pulse-pattern generator for generating the communication signal.
- a method for communication of a lighting system with a remote control device comprising the steps of emitting light by a light emitting element, switching the light emitting element from an emission mode to a detection mode, detecting a control signal from a remote control device by the light emitting element and emitting a communication signal to the remote control device.
- a computer-readable medium in which a computer program for communicating with a remote control device is stored which, when being executed by a processor, causes the processor to carry out the above-mentioned method steps.
- a program element for communicating with a remote control device which, when being executed by a processor, causes the processor to carry out the above-mentioned method steps.
- the method for communication may be embodied as the computer program, i.e. by software, or may be embodied using one or more special electronic optimization circuits, i.e. in hardware, or the method may be embodied in hybrid form, i.e. by means of software components and hardware components.
- the program element according to an embodiment of the invention is preferably loaded into working memories of a data processor.
- the data processor may thus be equipped to carry out embodiments of the methods of the present invention.
- the computer program may be written in any suitable programming language, such as, for example, C++ and may be stored on a computer-readable medium, such as a CD-ROM. Also, the computer program may be available from a network, such as the Worldwide Web, from which it may be downloaded into processing units or processors, or any suitable computers.
- a remote control device for communication with a lighting system, the remote control device comprising a transmitter for emitting a control signal to a lighting system, and a receiver for detecting a communication signal from the lighting system.
- LEDs in a lighting system are used both as photo-sensors for detecting control signals from a remote control (uplink) and as sources for the emission of modulated light to the remote control (downlink) and for illumination. Therefore, a communication between the remote control device and the lighting system may be provided without the need of an extra sensor or an extra transmitter (in the lamp).
- This may provide for a remote control technique for a multi-primary- LED-lamp in which the information exchange between the LED-lamp and the remote control is performed using special current and thus light modulation schemes to perform the up- and downlink to and from the device to the remote control.
- the LEDs are used as photodiode (intrinsic flux sensing).
- no special sensors are required to perform the up- and downlink.
- a special circuit may be provided that allows to switch the LEDs into a receive mode in a very rapid way. Therefore, the communication and switching circuit may be used for phosphor converted LEDs as well as for conventional LEDs.
- Fig. 1 shows a schematic representation of the building blocks of a lighting system according to an exemplary embodiment of the present invention.
- Fig. 2 shows a schematic representation of the building blocks of a lighting system according to another exemplary embodiment of the present invention.
- Fig. 3 shows a flow-chart according to a method according to an exemplary embodiment of the present invention.
- Fig. 1 shows a schematic representation of a lighting system 100, comprising a LED 102 or an LED-string or LED-array 102, 113, 114, 115.
- the lighting system 100 depicted in Fig. 1 comprises a plurality of channels for different colours or LEDs. In the following, only one channel is described.
- the red LED 102 (or string of several LEDs) is connected to an Tx/Rx- switch 103 which allows a disconnection from the driver circuit 106, 107, 108 and a connection to the amplifier 104, which is for example a transimpedance amplifier.
- the output 117 of the amplifier 104 is connected to an analog-to-digital converter (ADC) 105 that provides for a very fast sampling of the amplified photo- signal 117.
- ADC analog-to-digital converter
- the digital photo-signal 118 is transmitted to a central processing unit (CPU) 107 or digital signal processing unit (DSP) 107, that may allow to do a colour control, which is for example triggered by the remote control, and the remote control signal extraction.
- CPU central processing unit
- DSP digital signal processing unit
- the CPU 107 is controlling the brightness and the transmission of information via a pulse-pattern generator 106.
- the output 119 of the pulse-pattern generator 106 is connected to the driver 108 and then (via switch 103) to the LED 102 or to the whole LED-string 102, 113, 114, 115.
- an optical element 116 may be arranged in front of the LED-string 102, 113, 114, 115, which may be adapted for filtering or focusing the emitted light or the signal from the remote control 101.
- the remote control device 101 is adapted for transmitting a control signal
- one of the LEDs for example LED 102, detects the signal 120 from the remote control 101 and transmits the resulting detection signal to the switch 103 via a transmission line 121.
- the detected signal is then amplified by amplifier 104 and digitized by the analog-to-digital converter 105, after which it is transmitted to the CPU 107.
- Other LEDs for example LED 115, may be connected to another switch
- the second switch 111 may be connected to a second amplifier 109 connected to the pulse-pattern generator 106.
- the LEDs 102, 113, 114, 115 are used as photo-sensors for the uplink, i.e. the channel from the remote control device 101 to the lighting system 100, in order to perform a device selection, an activation or deactivation of the lighting system, or to perform a transmission of other control data from the remote control 101 to the lighting system 100.
- the modulated light (or radio frequency signal as depicted in Fig. 2) is used for the downlink, i.e. the signal transmission from the lighting system to the remote control 101.
- the current working condition may be transmitted to the remote control 101 by a downlink communication signal.
- the signal may then be used for programming or controlling a further lighting system.
- the communication signal may comprise static and dynamic colour point information. It should be noted in this context, that dynamic means complex dependency on a time.
- the communication signal may comprise dimmer or switch control information.
- the communication signal may further comprise a network item, which is a lamp identification signal, useful for example when several lamps are present in an installation and when all lamps should be controlled by the same remote control.
- a network item which is a lamp identification signal, useful for example when several lamps are present in an installation and when all lamps should be controlled by the same remote control.
- about a plurality of lighting systems may be grouped to a lamp network.
- the communication signal may comprise start-/stop information of local scenes, e.g. local dynamic patterns, attendance simulation, etc.
- the communication may comprise a lamp-identification number or use-patterns, like on/off-time or the preferred colour at a certain time.
- the lighting system may be applied in connection with phosphor- converted LEDs (pcLEDs) or conventional LEDs, such as GaN LEDs or AlGaAs LEDs.
- Fig. 2 shows a schematic representation of a lighting system according to another exemplary embodiment of the present invention.
- the lighting system 200 of Fig. 2 comprises a radio frequency module 201 having an antenna 202.
- the RF-module 201 is adapted for transmitting and/or receiving electromagnetic waves 203 to the remote control device 101.
- the electromagnetic waves 203 may comprise the communication signal for the remote control 101.
- the downlink (from the lighting system to the remote control 101) may be provided by the RF-module 201.
- the CPU 107 is connected to the RF-module 201, which are adapted for generating communication signals on the basis of ZigBee or WLAN in order to communicate with the remote control 101 or with a control station between the remote control and the lighting system 100.
- the lighting system may comprise both, the RF-module 201 and the pulse-pattern generator 106.
- the communication signal may be transmitted by both the LEDs and the RF-module, thereby providing for a redundancy.
- Fig. 3 shows a flow-chart of an exemplary method according to the present invention.
- the method starts at step 1 with the emission of light by a light emitting element.
- step 2 the light emitting element is switched from an emission mode to a detection mode by a switching element.
- step 3 a control signal, which is transmitted from a remote control device, is detected by the light emitting element.
- step 4 the detected signal is transferred to a central processing unit, where it is analyzed.
- the central processing unit then generates, together with a pulse-pattern generator, a corresponding driving signal for the light emitting element.
- a communication signal is generated by the CPU together with the pulse-pattern generator and emitted by the light emitting element towards the remote control.
- the communication signal corresponds, for example, to the current working condition of the light emitting element and may comprise an identification number of the light emitting element.
- the invention may be applied for remote controlling of general lighting, for communication between light units (optical long range link), for a touch-pad replacement for displays with LED backlighting, for optical proximity sensors and for automotive applications, such as light keys.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009538825A JP5513892B2 (en) | 2006-11-30 | 2007-11-27 | Intrinsic flux detection |
US12/516,027 US8692656B2 (en) | 2006-11-30 | 2007-11-27 | Intrinsic flux sensing |
ES07849266T ES2427360T3 (en) | 2006-11-30 | 2007-11-27 | Intrinsic flow detection |
MX2009005600A MX2009005600A (en) | 2006-11-30 | 2007-11-27 | Intrinsic flux sensing. |
RU2009124921/08A RU2475795C2 (en) | 2006-11-30 | 2007-11-27 | Internal detection of light flux |
EP07849266.7A EP2092669B1 (en) | 2006-11-30 | 2007-11-27 | Intrinsic flux sensing |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06125104 | 2006-11-30 | ||
EP06125104.7 | 2006-11-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008065607A2 true WO2008065607A2 (en) | 2008-06-05 |
WO2008065607A3 WO2008065607A3 (en) | 2008-08-07 |
Family
ID=39358028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2007/054801 WO2008065607A2 (en) | 2006-11-30 | 2007-11-27 | Intrinsic flux sensing |
Country Status (8)
Country | Link |
---|---|
US (1) | US8692656B2 (en) |
EP (1) | EP2092669B1 (en) |
JP (1) | JP5513892B2 (en) |
CN (2) | CN105680939A (en) |
ES (1) | ES2427360T3 (en) |
MX (1) | MX2009005600A (en) |
RU (1) | RU2475795C2 (en) |
WO (1) | WO2008065607A2 (en) |
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009010909A1 (en) * | 2007-07-19 | 2009-01-22 | Koninklijke Philips Electronics N.V. | Method, system and device for transmitting lighting device data |
WO2011051865A1 (en) | 2009-10-28 | 2011-05-05 | Koninklijke Philips Electronics N.V. | Commissioning coded light sources |
US8258454B2 (en) | 2007-11-07 | 2012-09-04 | Koninklijke Philips Electronics N.V. | Luminaire and a method for controlling a luminaire |
JP2012533164A (en) * | 2009-07-12 | 2012-12-20 | ケトラ・インコーポレーテッド | Intelligent lighting device |
WO2013025544A1 (en) * | 2011-08-17 | 2013-02-21 | Surefire, Llc | Lighting device controller programming |
WO2013072826A1 (en) * | 2011-11-15 | 2013-05-23 | Koninklijke Philips Electronics N.V. | Coded light transmission and reception for light scene creation |
US9146028B2 (en) | 2013-12-05 | 2015-09-29 | Ketra, Inc. | Linear LED illumination device with improved rotational hinge |
US9155155B1 (en) | 2013-08-20 | 2015-10-06 | Ketra, Inc. | Overlapping measurement sequences for interference-resistant compensation in light emitting diode devices |
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 |
US9237620B1 (en) | 2013-08-20 | 2016-01-12 | Ketra, Inc. | Illumination device and temperature compensation method |
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 |
US9247605B1 (en) | 2013-08-20 | 2016-01-26 | Ketra, Inc. | Interference-resistant compensation for illumination devices |
US9276766B2 (en) | 2008-09-05 | 2016-03-01 | Ketra, Inc. | Display calibration systems and related methods |
US9295112B2 (en) | 2008-09-05 | 2016-03-22 | Ketra, Inc. | Illumination devices and related systems and methods |
US9332598B1 (en) | 2013-08-20 | 2016-05-03 | Ketra, Inc. | Interference-resistant compensation for illumination devices having multiple emitter modules |
US9345097B1 (en) | 2013-08-20 | 2016-05-17 | Ketra, Inc. | Interference-resistant compensation for illumination devices using multiple series of measurement intervals |
US9360174B2 (en) | 2013-12-05 | 2016-06-07 | Ketra, Inc. | Linear LED illumination device with improved color mixing |
US9386668B2 (en) | 2010-09-30 | 2016-07-05 | Ketra, Inc. | Lighting control system |
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 |
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 |
WO2016112159A1 (en) * | 2015-01-08 | 2016-07-14 | Cooper Technologies Company | Electronic device including light detection circuit |
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 |
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 |
US9509525B2 (en) | 2008-09-05 | 2016-11-29 | Ketra, Inc. | Intelligent 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 |
US9578724B1 (en) | 2013-08-20 | 2017-02-21 | Ketra, Inc. | Illumination device and method for avoiding flicker |
US9651632B1 (en) | 2013-08-20 | 2017-05-16 | Ketra, Inc. | Illumination device and temperature calibration method |
US9736895B1 (en) | 2013-10-03 | 2017-08-15 | Ketra, Inc. | Color mixing optics for 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 |
US9769899B2 (en) | 2014-06-25 | 2017-09-19 | Ketra, Inc. | Illumination device and age compensation method |
US10161786B2 (en) | 2014-06-25 | 2018-12-25 | Lutron Ketra, Llc | Emitter module for an LED illumination device |
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 |
USRE48955E1 (en) | 2013-08-20 | 2022-03-01 | Lutron Technology Company Llc | Interference-resistant compensation for illumination devices having multiple emitter modules |
USRE48956E1 (en) | 2013-08-20 | 2022-03-01 | Lutron Technology Company Llc | Interference-resistant compensation for illumination devices using multiple series of measurement intervals |
US11272599B1 (en) | 2018-06-22 | 2022-03-08 | Lutron Technology Company Llc | Calibration procedure for a light-emitting diode light source |
USRE49454E1 (en) | 2010-09-30 | 2023-03-07 | Lutron Technology Company Llc | Lighting control system |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050259424A1 (en) * | 2004-05-18 | 2005-11-24 | Zampini Thomas L Ii | Collimating and controlling light produced by light emitting diodes |
US7766511B2 (en) * | 2006-04-24 | 2010-08-03 | Integrated Illumination Systems | LED light fixture |
US7729941B2 (en) | 2006-11-17 | 2010-06-01 | Integrated Illumination Systems, Inc. | Apparatus and method of using lighting systems to enhance brand recognition |
US8013538B2 (en) | 2007-01-26 | 2011-09-06 | Integrated Illumination Systems, Inc. | TRI-light |
US8742686B2 (en) * | 2007-09-24 | 2014-06-03 | Integrated Illumination Systems, Inc. | Systems and methods for providing an OEM level networked lighting system |
US8255487B2 (en) * | 2008-05-16 | 2012-08-28 | Integrated Illumination Systems, Inc. | Systems and methods for communicating in a lighting network |
US8585245B2 (en) | 2009-04-23 | 2013-11-19 | Integrated Illumination Systems, Inc. | Systems and methods for sealing a lighting fixture |
US9066381B2 (en) | 2011-03-16 | 2015-06-23 | Integrated Illumination Systems, Inc. | System and method for low level dimming |
US9967940B2 (en) | 2011-05-05 | 2018-05-08 | Integrated Illumination Systems, Inc. | Systems and methods for active thermal management |
JP6058636B2 (en) * | 2011-05-06 | 2017-01-11 | フィリップス ライティング ホールディング ビー ヴィ | Lighting device and receiver |
US10874003B2 (en) | 2011-07-26 | 2020-12-22 | Hunter Industries, Inc. | Systems and methods for providing power and data to devices |
US9609720B2 (en) | 2011-07-26 | 2017-03-28 | Hunter Industries, Inc. | Systems and methods for providing power and data to lighting devices |
US11917740B2 (en) | 2011-07-26 | 2024-02-27 | Hunter Industries, Inc. | Systems and methods for providing power and data to devices |
US8710770B2 (en) | 2011-07-26 | 2014-04-29 | Hunter Industries, Inc. | Systems and methods for providing power and data to lighting devices |
US20150237700A1 (en) | 2011-07-26 | 2015-08-20 | Hunter Industries, Inc. | Systems and methods to control color and brightness of lighting devices |
US9521725B2 (en) | 2011-07-26 | 2016-12-13 | Hunter Industries, Inc. | Systems and methods for providing power and data to lighting devices |
US8894437B2 (en) | 2012-07-19 | 2014-11-25 | Integrated Illumination Systems, Inc. | Systems and methods for connector enabling vertical removal |
US9379578B2 (en) | 2012-11-19 | 2016-06-28 | Integrated Illumination Systems, Inc. | Systems and methods for multi-state power management |
US9420665B2 (en) | 2012-12-28 | 2016-08-16 | Integration Illumination Systems, Inc. | Systems and methods for continuous adjustment of reference signal to control chip |
US9485814B2 (en) | 2013-01-04 | 2016-11-01 | Integrated Illumination Systems, Inc. | Systems and methods for a hysteresis based driver using a LED as a voltage reference |
CN105723766A (en) | 2013-12-19 | 2016-06-29 | 英特尔公司 | Technologies for providing information to a user while traveling |
CN104038283A (en) * | 2014-06-05 | 2014-09-10 | 桂林电子科技大学 | LED lighting communication system |
CN104506235B (en) * | 2014-12-10 | 2018-11-30 | 北京智谷睿拓技术服务有限公司 | Optical communication method and equipment |
CN104618018B (en) * | 2014-12-30 | 2018-09-18 | 北京智谷睿拓技术服务有限公司 | Data transmission method based on visible light communication and device |
JP6458937B2 (en) * | 2015-01-09 | 2019-01-30 | 東芝ライテック株式会社 | Beacon light |
CN104836623A (en) * | 2015-05-22 | 2015-08-12 | 重庆朗天通讯股份有限公司 | Light transmission assembly with function of static protection |
CN104967485A (en) * | 2015-05-22 | 2015-10-07 | 重庆朗天通讯股份有限公司 | Optical transmission assembly |
CN104967486A (en) * | 2015-05-22 | 2015-10-07 | 重庆朗天通讯股份有限公司 | Optical transmission device |
US10918030B2 (en) | 2015-05-26 | 2021-02-16 | Hunter Industries, Inc. | Decoder systems and methods for irrigation control |
US10228711B2 (en) | 2015-05-26 | 2019-03-12 | Hunter Industries, Inc. | Decoder systems and methods for irrigation control |
US10030844B2 (en) | 2015-05-29 | 2018-07-24 | Integrated Illumination Systems, Inc. | Systems, methods and apparatus for illumination using asymmetrical optics |
US10060599B2 (en) | 2015-05-29 | 2018-08-28 | Integrated Illumination Systems, Inc. | Systems, methods and apparatus for programmable light fixtures |
CN105812055B (en) * | 2016-03-30 | 2018-05-01 | 中国科学技术大学 | The method and system of the half-duplex time-division two-way visible light communication of RGB LED modules |
CN105934019B (en) * | 2016-04-25 | 2017-09-29 | 成都益英光电科技有限公司 | The illuminator and its detection method that can be communicated with one another |
JP7404216B2 (en) | 2019-03-07 | 2023-12-25 | 三菱電機株式会社 | lighting equipment |
US10801714B1 (en) | 2019-10-03 | 2020-10-13 | CarJamz, Inc. | Lighting device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2149947A (en) | 1983-11-16 | 1985-06-19 | Systech Limited | Control systems |
US20030043972A1 (en) | 2001-08-29 | 2003-03-06 | Burnham Robert J. | Wireless entertainment system for a vehicle |
EP1633060A1 (en) | 2004-09-01 | 2006-03-08 | Agilent Technologies, Inc. | Light communication system and illumination apparatus therefor |
Family Cites Families (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0398291A (en) * | 1989-09-11 | 1991-04-23 | Matsushita Electric Works Ltd | Remote monitoring control system |
JPH0653909A (en) * | 1992-07-31 | 1994-02-25 | Kyocera Corp | Optical space transmission system |
DE4327173A1 (en) | 1993-08-13 | 1995-02-16 | Uwe Dr Ing Meinberg | System for object-orientated, indicating remote control of electrical devices (apparatuses, appliances, units) by means of a hand-operated transmitter with a focused visible light beam and stationary receiver |
JPH0766727A (en) * | 1993-08-30 | 1995-03-10 | Fujitsu Ltd | Analog signal sampling circuit constituted of field effect transistor |
JP2774955B2 (en) * | 1994-11-01 | 1998-07-09 | 富士通株式会社 | Ambient light detector, light source lighting controller and reader |
JPH08204650A (en) * | 1995-01-31 | 1996-08-09 | Nippon Telegr & Teleph Corp <Ntt> | Point-multipoint optical transmission system |
CN1171587A (en) * | 1996-07-02 | 1998-01-28 | 希尔蒂股份公司 | Optical bidirectional serial interface |
JP3957801B2 (en) | 1997-01-13 | 2007-08-15 | 弘洋エンジニアリング株式会社 | Information transmission system and information transmission method |
US6548967B1 (en) * | 1997-08-26 | 2003-04-15 | Color Kinetics, Inc. | Universal lighting network methods and systems |
US7014336B1 (en) * | 1999-11-18 | 2006-03-21 | Color Kinetics Incorporated | Systems and methods for generating and modulating illumination conditions |
JP2001024588A (en) * | 1999-05-06 | 2001-01-26 | Fuji Electric Co Ltd | Signal converter |
US6389337B1 (en) * | 2000-04-24 | 2002-05-14 | H. Brock Kolls | Transacting e-commerce and conducting e-business related to identifying and procuring automotive service and vehicle replacement parts |
JP2002026812A (en) * | 2000-07-05 | 2002-01-25 | Sharp Corp | Power source control apparatus, receiving device for remote controller and optical communication apparatus |
US6879263B2 (en) * | 2000-11-15 | 2005-04-12 | Federal Law Enforcement, Inc. | LED warning light and communication system |
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 |
US20020133282A1 (en) * | 2001-03-16 | 2002-09-19 | Ryan John T. | Brake light system using sequential lamp array and input from velocity measuring device |
RU2206936C2 (en) * | 2001-09-13 | 2003-06-20 | Лихачев Владимир Евграфович | Lighting control unit |
JP2005502895A (en) * | 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 | Spectrometer with integrated signal matching filtering |
US6455340B1 (en) * | 2001-12-21 | 2002-09-24 | Xerox Corporation | Method of fabricating GaN semiconductor structures using laser-assisted epitaxial liftoff |
GB0205891D0 (en) * | 2002-03-13 | 2002-04-24 | Remote Controlled Lighting Ltd | A lighting Unit |
WO2003084102A1 (en) * | 2002-04-03 | 2003-10-09 | Mitsubishi Denki Kabushiki Kaisha | Optical communications transceiver and method for transceiving data |
US6664744B2 (en) * | 2002-04-03 | 2003-12-16 | Mitsubishi Electric Research Laboratories, Inc. | Automatic backlight for handheld devices |
US8100552B2 (en) | 2002-07-12 | 2012-01-24 | Yechezkal Evan Spero | Multiple light-source illuminating system |
US20040071471A1 (en) | 2002-10-10 | 2004-04-15 | Interlink Electronics, Inc. | Method and system for pairing a remote control transmitter and receiver |
JP3827082B2 (en) * | 2002-10-24 | 2006-09-27 | 株式会社中川研究所 | Broadcast system, light bulb, lighting device |
JP2004297295A (en) * | 2003-03-26 | 2004-10-21 | Global Com:Kk | Illumination light communication system, illuminator, and illumination light source |
JP3981036B2 (en) * | 2003-03-27 | 2007-09-26 | 株式会社東芝 | Wireless optical communication system |
JP4333186B2 (en) * | 2003-04-07 | 2009-09-16 | ソニー株式会社 | Communication system and communication lighting device |
EP1636925A1 (en) * | 2003-06-10 | 2006-03-22 | Koninklijke Philips Electronics N.V. | Led system for illumination and data transmission |
JP4018047B2 (en) * | 2003-09-11 | 2007-12-05 | シャープ株式会社 | Remote control signal receiving circuit, remote control signal receiving method, remote control signal receiving program, and computer-readable recording medium recording the same |
US7286767B2 (en) * | 2003-09-30 | 2007-10-23 | Intel Corporation | Optical transceiver over single communication link |
US7315036B2 (en) * | 2003-10-23 | 2008-01-01 | The Flewelling Ford Family Trust | Multifunction multi-spectrum signalling device |
JP2005302311A (en) * | 2004-04-06 | 2005-10-27 | Koito Mfg Co Ltd | Lamp and vehicular headlamp |
US7355523B2 (en) * | 2004-04-15 | 2008-04-08 | Alberto Sid | Remote controlled intelligent lighting system |
JP2005318148A (en) * | 2004-04-28 | 2005-11-10 | Shinko Electric Co Ltd | Luminaire and lighting system |
JP4463024B2 (en) * | 2004-06-21 | 2010-05-12 | シャープ株式会社 | Light emitting device |
EP1779708B1 (en) | 2004-08-06 | 2021-06-30 | Signify Holding B.V. | Lighting system including photonic emission and detection using light-emitting elements |
JP4857537B2 (en) * | 2004-08-20 | 2012-01-18 | パナソニック電工株式会社 | Lighting system |
JP2006332846A (en) * | 2005-05-24 | 2006-12-07 | Funai Electric Co Ltd | Transmitter of av signal, communication apparatus, and transmission method |
JP4718240B2 (en) * | 2005-05-24 | 2011-07-06 | 日東光学株式会社 | Data communication apparatus and electronic device |
US20070003289A1 (en) * | 2005-06-30 | 2007-01-04 | Wee-Sin Tan | Integrated infrared transceiver |
JP2007122993A (en) * | 2005-10-27 | 2007-05-17 | Matsushita Electric Ind Co Ltd | Illumination apparatus connector and its program |
JP2007208309A (en) * | 2006-01-30 | 2007-08-16 | Kyocera Corp | Illuminating light communication system, illuminating light communication device and terminal device |
-
2007
- 2007-11-27 CN CN201610042099.0A patent/CN105680939A/en active Pending
- 2007-11-27 RU RU2009124921/08A patent/RU2475795C2/en not_active IP Right Cessation
- 2007-11-27 WO PCT/IB2007/054801 patent/WO2008065607A2/en active Application Filing
- 2007-11-27 US US12/516,027 patent/US8692656B2/en active Active
- 2007-11-27 MX MX2009005600A patent/MX2009005600A/en active IP Right Grant
- 2007-11-27 ES ES07849266T patent/ES2427360T3/en active Active
- 2007-11-27 CN CNA2007800437346A patent/CN101558588A/en active Pending
- 2007-11-27 EP EP07849266.7A patent/EP2092669B1/en active Active
- 2007-11-27 JP JP2009538825A patent/JP5513892B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2149947A (en) | 1983-11-16 | 1985-06-19 | Systech Limited | Control systems |
US20030043972A1 (en) | 2001-08-29 | 2003-03-06 | Burnham Robert J. | Wireless entertainment system for a vehicle |
EP1633060A1 (en) | 2004-09-01 | 2006-03-08 | Agilent Technologies, Inc. | Light communication system and illumination apparatus therefor |
Cited By (58)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8488971B2 (en) | 2007-07-19 | 2013-07-16 | Koninklijke Philips N.V. | Method, system and device for transmitting lighting device data |
WO2009010909A1 (en) * | 2007-07-19 | 2009-01-22 | Koninklijke Philips Electronics N.V. | Method, system and device for transmitting lighting device data |
US9219545B2 (en) | 2007-07-19 | 2015-12-22 | Koninklijke Philips N.V. | Method, system and device for transmitting lighting device data |
US8258454B2 (en) | 2007-11-07 | 2012-09-04 | Koninklijke Philips Electronics N.V. | Luminaire and a method for controlling a luminaire |
US10847026B2 (en) | 2008-09-05 | 2020-11-24 | Lutron Ketra, Llc | Visible light communication system and method |
US9509525B2 (en) | 2008-09-05 | 2016-11-29 | Ketra, Inc. | Intelligent illumination device |
US9295112B2 (en) | 2008-09-05 | 2016-03-22 | 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 |
JP2012533164A (en) * | 2009-07-12 | 2012-12-20 | ケトラ・インコーポレーテッド | Intelligent lighting device |
EP2454922A4 (en) * | 2009-07-12 | 2017-03-29 | Firefly Green Technologies Inc. | Intelligent illumination device |
WO2011051865A1 (en) | 2009-10-28 | 2011-05-05 | Koninklijke Philips Electronics N.V. | Commissioning coded light sources |
US8729808B2 (en) | 2009-10-28 | 2014-05-20 | Koninklijke Philips N.V. | Commissioning coded light sources |
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 |
US8981650B2 (en) | 2011-08-17 | 2015-03-17 | Surefire, Llc | Lighting device controller programming |
WO2013025544A1 (en) * | 2011-08-17 | 2013-02-21 | Surefire, Llc | Lighting device controller programming |
US11210934B2 (en) | 2011-09-13 | 2021-12-28 | Lutron Technology Company Llc | Visible light communication system and method |
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 |
US11915581B2 (en) | 2011-09-13 | 2024-02-27 | Lutron Technology Company, LLC | Visible light communication system and method |
WO2013072826A1 (en) * | 2011-11-15 | 2013-05-23 | Koninklijke Philips Electronics N.V. | Coded light transmission and reception for light scene creation |
US9247605B1 (en) | 2013-08-20 | 2016-01-26 | Ketra, Inc. | Interference-resistant compensation for illumination devices |
US9578724B1 (en) | 2013-08-20 | 2017-02-21 | Ketra, Inc. | Illumination device and method for avoiding flicker |
US9237620B1 (en) | 2013-08-20 | 2016-01-12 | Ketra, Inc. | Illumination device and temperature compensation method |
USRE49705E1 (en) | 2013-08-20 | 2023-10-17 | Lutron Technology Company Llc | Interference-resistant compensation for illumination devices using multiple series of measurement intervals |
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 |
USRE49421E1 (en) | 2013-08-20 | 2023-02-14 | Lutron Technology Company Llc | 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 |
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 |
US11326761B2 (en) | 2013-10-03 | 2022-05-10 | Lutron Technology Company Llc | Color mixing optics for LED illumination device |
US11662077B2 (en) | 2013-10-03 | 2023-05-30 | Lutron Technology Company Llc | Color mixing optics for LED illumination device |
US9360174B2 (en) | 2013-12-05 | 2016-06-07 | Ketra, Inc. | Linear LED illumination device with improved color mixing |
US9668314B2 (en) | 2013-12-05 | 2017-05-30 | Ketra, Inc. | Linear LED illumination device with improved color mixing |
USRE48922E1 (en) | 2013-12-05 | 2022-02-01 | Lutron Technology Company Llc | Linear LED illumination device with improved color mixing |
US9146028B2 (en) | 2013-12-05 | 2015-09-29 | Ketra, Inc. | Linear LED illumination device with improved rotational hinge |
US10595372B2 (en) | 2014-06-25 | 2020-03-17 | Lutron Ketra, Llc | 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 |
US10605652B2 (en) | 2014-06-25 | 2020-03-31 | Lutron Ketra, Llc | Emitter module for an LED illumination device |
US10161786B2 (en) | 2014-06-25 | 2018-12-25 | Lutron Ketra, Llc | Emitter module for an LED illumination device |
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 |
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 |
US11243112B2 (en) | 2014-06-25 | 2022-02-08 | Lutron Technology Company Llc | Emitter module for an LED illumination device |
US11252805B2 (en) | 2014-06-25 | 2022-02-15 | Lutron Technology Company Llc | Illumination device and method for calibrating an illumination device over changes in temperature, drive current, and time |
US9769899B2 (en) | 2014-06-25 | 2017-09-19 | Ketra, Inc. | Illumination device and age compensation method |
USRE49246E1 (en) | 2014-08-28 | 2022-10-11 | Lutron Technology Company Llc | LED illumination device and method for accurately controlling the intensity and color point of the illumination device over 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 |
USRE49479E1 (en) | 2014-08-28 | 2023-03-28 | Lutron Technology Company Llc | LED illumination device and calibration method for accurately characterizing the emission LEDs and photodetector(s) included within the LED illumination device |
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 |
US10048123B2 (en) | 2015-01-08 | 2018-08-14 | Eaton Intelligent Power Limited | Electronic device including light detection circuit |
WO2016112159A1 (en) * | 2015-01-08 | 2016-07-14 | Cooper Technologies Company | Electronic device including light detection circuit |
USRE49137E1 (en) | 2015-01-26 | 2022-07-12 | Lutron Technology Company Llc | Illumination device and method for avoiding an over-power or over-current condition in a power converter |
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 |
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 |
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 |
US11272599B1 (en) | 2018-06-22 | 2022-03-08 | Lutron Technology Company Llc | Calibration procedure for a light-emitting diode light source |
Also Published As
Publication number | Publication date |
---|---|
RU2009124921A (en) | 2011-01-10 |
CN101558588A (en) | 2009-10-14 |
JP5513892B2 (en) | 2014-06-04 |
WO2008065607A3 (en) | 2008-08-07 |
ES2427360T3 (en) | 2013-10-30 |
US20100045478A1 (en) | 2010-02-25 |
MX2009005600A (en) | 2009-06-08 |
EP2092669A2 (en) | 2009-08-26 |
JP2011505053A (en) | 2011-02-17 |
US8692656B2 (en) | 2014-04-08 |
RU2475795C2 (en) | 2013-02-20 |
CN105680939A (en) | 2016-06-15 |
EP2092669B1 (en) | 2013-06-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8692656B2 (en) | Intrinsic flux sensing | |
US8488971B2 (en) | Method, system and device for transmitting lighting device data | |
US8643286B2 (en) | Illumination system and method for processing light | |
CN101523986B (en) | Operating device and method for operating luminous means | |
US8330395B2 (en) | LED lighting system with optical communication functionality | |
EP2297878B1 (en) | Optical receiver for an illumination system | |
US9337925B2 (en) | Apparatus and methods for optical control of lighting devices | |
JP2011521546A (en) | Optical module, lighting system and method for incorporating data into emitted light | |
CN101814955A (en) | Device used for transmitting and receiving signal in visible light communication system | |
US8981912B2 (en) | Pushbits for semi-synchronized pointing | |
CN101485119A (en) | Electroluminescent emission device for optical transmission in free space | |
KR20120106807A (en) | Method and device for optical transmission of data | |
JP2008182446A (en) | Two-way visible-light communication apparatus | |
US9763304B2 (en) | Visible light communication apparatus and method for manufacturing visible light communication apparatus | |
CN101855847B (en) | Data transmission with room illuminations having light emitting diodes | |
KR101580407B1 (en) | An apparatus and a method for VLC | |
US20240057235A1 (en) | Lighting system and control method of said system | |
KR101587732B1 (en) | A system and a method for VLC | |
Gutierrez et al. | Visible light communication led based luminaire for general lighting: State of art | |
JP2020194671A (en) | Lighting device and lighting system | |
KR20050054051A (en) | Apparatus for indicating reception sensitivity in antenna module |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200780043734.6 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07849266 Country of ref document: EP Kind code of ref document: A2 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007849266 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2009538825 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12516027 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: MX/A/2009/005600 Country of ref document: MX |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 3697/CHENP/2009 Country of ref document: IN |
|
ENP | Entry into the national phase |
Ref document number: 2009124921 Country of ref document: RU Kind code of ref document: A |