Patent application number | Description | Published |
20090184648 | ILLUMINATION COPY AND PASTE OPERATION USING LIGHT-WAVE IDENTIFICATION | 07-23-2009 |
20100074622 | LINE-OF-SIGHT OPTICAL DETECTION SYSTEM, AND COMMUNICATION SYSTEM - A line-of-sight optical detection system comprises: a plurality of dimmable light sources ( | 03-25-2010 |
20100176732 | DIRECTION CONTROLLABLE LIGHTING UNIT - A direction controllable lighting unit ( | 07-15-2010 |
20100208236 | METHOD FOR DETERMINING THE POSITION OF AN OBJECT IN A STRUCTURE - This invention relates to a method for determining the position of an object in a structure. The object receives modulated light waves from a plurality of light sources, which are arranged in the structure. The modulation is individually coded, and the position of the light sources in the structure is known. The modulation signals are synchronized, and thereby it is possible to determine the position of the object on basis of measuring the phase difference between the phase of each received modulated light wave and a comparison phase. The phase difference is used for distance calculations, which in turn give the position of the object. | 08-19-2010 |
20100225245 | DIRECTION CONTROLLABLE LIGHTING UNIT WITH ULTRASOUND - A direction controllable lighting unit | 09-09-2010 |
20100225484 | OBJECT LOCALIZATION METHOD, SYSTEM, TAG, AND USER INTERFACE DEVICE - Proposed is an object localization method, system and user interface device for locating a (misplaced) object ( | 09-09-2010 |
20100244746 | LIGHTING SYSTEM AND REMOTE CONTROL METHOD THEREFOR - Proposedis a remote control device ( | 09-30-2010 |
20100254712 | METHOD, SYSTEM AND DEVICE FOR TRANSMITTING LIGHTING DEVICE DATA - It is presented a method for transmitting lighting device data. The method comprises the steps of obtaining, in a lighting device, a subset of lighting device data, the lighting device data containg information of the lighting device, transmitting, from the lighting device, using light, the subset of lighting device data, and repeating the above steps until all subsets jointly corresponding to the complete lighting device data have been transmitted. A corresponding lighting device and lighting system are also presented. | 10-07-2010 |
20100271476 | METHOD FOR PROCESSING LIGHT IN A STRUCTURE AND A LIGHTING SYSTEM - This invention relates to a method for processing light in a structure, such as a room or a part thereof, a vehicle, etc., where several light sources are arranged in the structure. The light sources emit light carrying individual codes. A camera is arranged in a camera position of the structure and registers images of spots of the light. The spots can be, “for instance, illuminated areas of a floor or the direct light images of the light sources. The individual codes are derived from the registered images and one or more properties, such as for instance light source position or light intensity, related to the associated light source, is determined. The method is performed by means of a lighting system having several light sources, a camera, and a signal processing apparatus. Typical applications for the invention are light source commissioning and real time foot-print measurements. | 10-28-2010 |
20100271617 | VEHICLE POSITIONING MEASUREMENT SYSTEM AND METHOD - A vehicle position measurement system ( | 10-28-2010 |
20100301776 | METHOD AND A SYSTEM FOR CONTROLLING A LIGHTING SYSTEM - The present invention relates to a location commissioning method for a lighting system, which comprises several lighting arrangements. Thus, an illuminated position, of for example a room, is selected for the performing the commissioning, which is then associated with that position. This commissioning is called Luxissioning™. The position is assigned a position id, and the light at the position is measured. Light data associated with each one of the lighting arrangements is derived from the measured light, and the light data is associated with the position id. Light transfer data is determined on basis of the light data and current drive data for the lighting arrangements and stored in a light effect setting array for the position id. A light effect setting method is also present, where there is requested a selected light effect at a selected position. For each such request data comprising a position id and a target light effect setting associated with the position is received. The associated initial light effect setting array is derived, for example by retrieving a stored one. Required drive data for the relevant light arrangements, for obtaining the target light effect setting, is determined by means of the light transfer data held in the array, and adjustments are made accordingly, if necessary. Devices and systems for performing the above methods are also addressed by this invention. | 12-02-2010 |
20100315007 | COLOR CONTROLLED LIGHT SOURCE AND A METHOD FOR CONTROLLING COLOR GENERATION IN A LIGHT SOURCE - This invention relates to a color controlled light source comprising a plurality of colored light elements; a detector for detecting the light output of the light source and generating a detection signal; and a color control unit for generating driving signals to said light elements on the basis of said detection signal and a predetermined target color point of the light output of the light source. In order to enable detection of contributions from individual light elements to the light output of the light source, the light source further comprises a modulator for individual signature modulation of the driving signal to each one of said light elements; and a corresponding demodulator for demodulation of said detection signal and generation of actual, i.e. measured, values of the output of the individual light elements. The color control unit determines nominal values of the light output of each light element for obtaining said target color point, and compares the actual values with the nominal values. If there is a difference, it adjusts the driving signals in order to minimize the difference. | 12-16-2010 |
20100327754 | ADAPTIVE MODULATION AND DATA EMBEDDING IN LIGHT FOR ADVANCED LIGHTING CONTROL - This invention relates to a method for controlling a light output signal emitted by a set of light sources comprising at least one light source, wherein said light output signal comprises a modulation signal which carries individual information, the method comprising recurrently: remotely detecting the light output signal of said set of light sources; determining at least one quality measure of said remote detection of the light output signal; and adjusting the modulation signal on basis of said at least one quality measure. | 12-30-2010 |
20100327755 | COLOR CONTROLLED LIGHT SOURCE AND A METHOD FOR CONTROLLING COLOR GENERATION IN A LIGHT SOURCE - This invention relates to a color controlled light source comprising a plurality of colored light elements, and a plurality of (filtered) photo detectors, having different spectral characteristics covering all or most of the total spectrum of the light elements. The (filtered) photo detectors detect the light output of the light source, and generate corresponding detection signals. The light source further has a color control unit for generating driving signals to the light elements on the basis of the detection signals and a predetermined target color point of the light output of the light source, and a modulator for individual signature modulation of the driving signal to each one of said light elements. A corresponding demodulator is provided for demodulation of the detection signals and extraction, from each detection signal, of actual values of the light outputs of the light elements. The color control unit has means for determining the spectral output of each light element on basis of the actual values, means for determining an actual color point from said spectral outputs of all light elements, and means for comparing said target color point with said actual color point and, if there is a difference, adjusting said driving signals in order to minimize the difference. | 12-30-2010 |
20100329691 | LIGHT-BASED COMMUNICATION FOR CONFIGURATION OF LIGHT-SENSING PERIPHERALS - The present invention relates to light-based communication, and more particularly it relates to methods for configuration of at least one remote light-sensing device, to a central light-emitting unit and to a light-sensing device. According to the invention, spatial configuration of remote light-sensing devices (e.g. peripherals such as loudspeakers or light devices), will be achieved by transmission of embedded identifiers or configuration information in light emitted in a plurality of directions from a central light-emitting unit. With a different identifier or different configuration information for each direction of transmission, the directions can be distinguished from each other. The invention enables a user to place remote light-sensing devices in a desired spatial position and the central light-emitting unit will be able to determine location and spatial function, i.e. for example whether the peripheral is an audio device and/or a lighting device. As a result, the peripherals will be correctly configured without any user interaction required. | 12-30-2010 |
20110043116 | ILLUMINATION SYSTEM AND METHOD FOR PROCESSING LIGHT - Proposed is an illumination system ( | 02-24-2011 |
20110044701 | LIGHT MODULE, ILLUMINATION SYSTEM AND METHOD INCORPORATING DATA IN LIGHT EMITTED - Proposed is a light module ( | 02-24-2011 |
20110080120 | WIRELESS, REMOTELY CONTROLLED, DEVICE SELECTION SYSTEM AND METHOD - The invention relates to a wireless remote controlled device selection system for selecting devices. Signal processing provides information for a remote control device. This information is indicative of the angle between the remote control device and the various devices from which a device should be selected. By comparing the angular deviations, the desired device can be selected. | 04-07-2011 |
20110092824 | MONITORING A VITAL PARAMETER OF A PATIENT WITH "IN-SITU" MODULATION SCHEME TO AVOID INTERFERENCE - The invention relates to a method of monitoring a vital parameter of a patient by measuringattenuation of light emitted onto tissue of the patient, comprising the following steps: modulating the light with a modulation frequency or/and a modulation code; emitting the modulated light onto the tissue of the patient; collecting lightwhich is transmitted through the tissue or/and which is reflected from the tissue; demodulating the collected light; analyzing the demodulated collected light with regard to interference with ambient light; determining amodulation frequency or/and a modulation code for which interference with the ambient light is minimized or falls under a predefined threshold; and setting the modulation frequency or/and the modulation code for modulating the light according to the determined modulation frequency or/and a modulation code for which interference with the ambient light is minimized or falls under a predefined threshold. In this way a versatile and reliable possibility of monitoring a vital parameter of a patient with a high signal-to-interference ratio is provided. | 04-21-2011 |
20110101871 | CONFIGURATION OF A LUMINAIRE SYSTEM - There is provided a method for advanced configuration and initialization of a luminaire system. The luminaire system comprises one or more lighting devices ( | 05-05-2011 |
20110236034 | ILLUMINATION DEVICE AND METHOD FOR EMBEDDING A DATA SIGNAL IN A LUMINANCE OUTPUT USING AC DRIVEN LIGHT SOURCES - The invention relates to an illumination device connectable to an AC voltage source for applying an alternating voltage during a series of time intervals. The illumination device comprises at least a first light source and a second light source, arranged to be connected in series to the AC voltage source, to generate a luminance output in response to the alternating voltage. Selection means are provided configured for selectively applying the alternating voltage over the first light source or the first and second light source. A controller is provided for controlling the selection means in response to a data signal comprising data symbols such that one or more of the data symbols are contained in said luminance output. The invention also relates to a method of embedding one or more data symbols in the luminance output of such an illumination device, an optical receiver and an illumination system. | 09-29-2011 |
20110266415 | SENSOR DEVICE WITH TILTING OR ORIENTATION-CORRECTING PHOTO SENSOR FOR ATMOSPHERE CREATION - The present invention relates to a method and a device for controlling a physical property of light emitted from a light source. In particular, the invention can be applied to a lighting system for atmosphere creation. The measurements needed for feedback control are made at a portable user device comprising a planar photodetector. More or less all industrially available photodetectors are of the planar type, but planarity is in fact a necessary feature to achieve faithful relative measurements. Since the user device is portable, variations in the orientation of the photodetector can introduce large and unpredictable measurement errors, making effective control of the light source impossible. According to one embodiment of the invention, the orientation-dependent errors are eliminated by measuring the actual orientation of the photodetector and processing the detection signal appropriately. According to a second embodiment, the photodetector is movably mounted in the user device in order to retain its preferred orientation irrespective of the orientation of the user device. In a third embodiment, the emitted light is monitored by a plurality of photodetectors; knowing the actual orientation of the user device, the control device can give priority to the measurements coming from the best oriented photodetector at every instant. | 11-03-2011 |
20110276151 | CONTROL SYSTEM FOR CONTROLLING ONE OR MORE CONTROLLABLE DEVICES SOURCES AND METHOD FOR ENABLING SUCH CONTROL - The invention relates to control system configured for controlling at least one controllable device. The device has been assigned a corresponding identifier and is configured for transmitting an identification signal comprising the identifier of the device. The control system comprises a display for displaying a control item configured for controlling the controllable device. The control system also comprises a receiver configured for wirelessly receiving the identification signal comprising the identifier. The control system is configured for assigning a position of the control item on the display to the device identified by means of said received identifier. | 11-10-2011 |
20110310621 | AUTOMATICALLY COMMISSIONING OF DEVICES OF A NETWORKED CONTROL SYSTEM - The invention relates to automatically commissioning of devices of a networked control system, particularly to automatically commissioning (auto-commissioning) of light sources of a lighting system, where a control of light sources on an individual and local basis is required. A basic idea of the invention is to route commissioning messages through a grid, particularly an approximately rectangular grid of devices in that each device is able to receive commissioning messages from and to transmit commissioning messages to directly neighbored devices in the grid via light. An embodiment of the invention relates to a method for automatically commissioning of devices ( | 12-22-2011 |
20120025740 | LIGHTING DEVICE - It is presented a lighting device ( | 02-02-2012 |
20120091896 | EFFICIENT ADDRESS ASSIGNMENT IN CODED LIGHTING SYSTEMS - Coded light has been proposed to enable advanced control of light sources and transmit information using light sources. It is based on invisibly embedding of data and identifiers in their light output. Methods, devices and systems configured to efficient assignment of addresses in a coded lighting system, still allowing for unique identification, are proposed. More specifically, the assignment of addresses occurs in two phases, where in the initial phase wide area unique addresses are used, while in the second phase only local area unique addresses are used. Also, methods, devices and systems configured to efficiently distribute a set of addresses over a set of light sources in this second phase, to maximize the performance of the illumination contribution estimation, and positioning, are disclosed. | 04-19-2012 |
20120092143 | METHOD FOR SELECTING A CONTROLLABLE DEVICE - The present invention relates to a method for selecting at least one of a plurality of controllable devices ( | 04-19-2012 |
20120105266 | METHOD AND DEVICE FOR DRIVING A LAMP - A method for driving a lamp ( | 05-03-2012 |
20120135692 | WIRELESS REMOTE CONTROLLED DEVICE SELECTION SYSTEM AND METHOD - The invention relates to a wireless remote controlled device selection system for selecting devices. Signal processing provides information for a remote control device. This information is indicative of the angle between the remote control device and the various devices from which a device should be selected. By analyzing the angular deviations, the desired device can be selected. | 05-31-2012 |
20120153838 | COGNITIVE IDENTIFIER ASSIGNMENT FOR LIGHT SOURCE CONTROL - Coded light has been proposed to enable advanced control of light sources and transmit information using light sources. Methods, devices and systems configured to operate a coded lighting control system, which is robust to interference from other sources of light are proposed. The method is based on sensing the light by a remote control device, and based on the sensing result adapting the identifiers used by the different light sources. By assigning a code identifier to the light source based on light received by the light receiver the code identifiers may be selected such that the influence of light interfering with the light source identifiers may be mitigated. | 06-21-2012 |
20120170939 | METHOD AND SYSTEM FOR ASYNCHRONOUS LAMP IDENTIFICATION - The invention relates to embedding data into a luminance output generated by an illumination system comprising a light source and a controller. The controller is configured to embed data by modulating a drive signal applied to the light source with an information signal comprising a shifted base code and a synchronization code. The synchronization code serves to provide synchronization for the receiver, while the shifted base code serves to carry the embedded data. A cyclic phase shift that is applied to a base code to generate the shifted base code corresponds to particular data, such as, for example, light source identification, that needs to be embedded into the luminance output of the illumination system. In this manner, data may be embedded into the luminance output generated by a light source without requiring synchronization of this light source with other light sources. | 07-05-2012 |
20120200226 | Commissioning Coded Light Sources - Commissioning a coded light source in a lighting system is accomplished by using a remote controller. When an identification of a light source is successful, a control message is sent to that light source to at least partly switch off its light emission. Thus the light contribution of the identified light source is suppressed. Thereby the chance of coded light from an already identified light source colliding with identifiers comprised in coded light emitted by other light sources is reduced. When no more coded light is detectable, a sensitivity of the remote controller can be increased until coded light again is detectable. Further light sources can then be identified and commissioned. | 08-09-2012 |
20120242231 | System and method for physical association of lighting scenes - A controller for a lighting arrangement ( | 09-27-2012 |
20120281879 | Method and System for 2D Detection of Localized Light Contributions - The invention relates to a detection system for determining whether a light contribution of a light source is present at a selected position within a 2D scene. The light contribution includes an embedded code comprising a repeating sequence of N symbols. The detection system includes a camera and a processing unit. The camera is configured to acquire a series of images of the scene via specific open/closure patterns of the shutter. Each image includes a plurality of pixels, each pixel representing an intensity of the light output of the light source at a different physical position within the scene. The processing unit is configured to process the acquired series of images to determine whether the light contribution of the first light source is present at the selected physical position within the scene by e.g. correlating a sequence of pixels of the acquired series corresponding to the selected physical position with the first sequence of N symbols. | 11-08-2012 |
20120281987 | Data Detection For Visible Light Communications Using Conventional Camera Sensor - The invention relates to a detection system for determining data embedded into the light output of a light source in a form of a repeating sequence of N symbols. The detection system includes a camera and a processing unit. The camera is configured to acquire a series of images of the scene via specific open/closure patterns of the shutter. The processing unit is configured to process the acquired series of images to determine the repeating sequence of N symbols. By carefully triggering when a shutter of the camera is open to capture the different symbols of the encoded light within each frame time of a camera, a conventional camera with a relatively long frame time may be employed. Therefore, the techniques presented herein are suitable for detecting the invisible “high frequency” coded light while using less expensive cameras as those used in the prior art. | 11-08-2012 |
20120287334 | Method of Controlling a Video-Lighting System - The invention provides a video-lighting system ( | 11-15-2012 |
20120299510 | ADAPTABLE LIGHTING SYSTEM - The present invention relates to a control unit ( | 11-29-2012 |
20120319618 | Method and a system for controlling a lighting system - A location commissioning method for a lighting system, having several lighting arrangements, includes selecting an illuminated position, assigning the position a position id, measuring light at the position, deriving light data associated with each lighting arrangement from the measured light, associating the light data with the position id, determining light transfer data from the light data and current drive data for the lighting arrangements, and storing in a light effect setting array for the position id. A light effect setting method includes requesting a selected light effect at a selected position, receiving a position id and a target light effect setting associated with the position, deriving the associated initial light effect setting array, for example by retrieving a stored one, determining the drive data for obtaining the target light effect setting, via the light transfer data in the array. | 12-20-2012 |
20130069540 | Adaptive modulation and data embedding in light for advanced lighting control - Disclosed is a method for controlling a light output signal emitted by a set of light sources comprising at least one light source, wherein said light output signal includes a modulation signal which carries individual information, such that the method includes recurrently:
| 03-21-2013 |
20130069541 | METHOD FOR CONTROLLING A LIGHTING SYSTEM, AND LIGHTING SYSTEM - The invention relates to a method for controlling a lighting system, said lighting system comprising a plurality of luminaires ( | 03-21-2013 |
20130119892 | LIGHTING SYSTEM - There is provided a lighting system | 05-16-2013 |
20130145610 | COMMISSIONING OF A BUILDING SERVICE SYSTEM - The invention relates to adjusting at least one of installed building service sensors ( | 06-13-2013 |
20130250590 | DIRECTION CONTROLLABLE LIGHTING UNIT WITH ULTRASOUND - A direction controllable lighting unit | 09-26-2013 |
20140056588 | Light module, illumination system and method incorporating data in light emitted - Proposed is a light module ( | 02-27-2014 |
20140103194 | Coded-light detection system including a camera, light sensor and augmented information display - There is disclosed a sensing device ( | 04-17-2014 |
20140125233 | Robust daylight integration with the aid of coded light - The present invention relates to a method of controlling a dimmable luminaire co-arranged with a light sensor at a first level of a room and illuminating a second level of the room, comprising: determining an output path parameter representing a relation between the amount of light emitted from the luminaire and a luminaire illumination value at the second level, which results from the emitted amount of light; and repeatedly: determining an external illumination value at the second level, which external illumination value represents illumination by other sources than the luminaire, by means of values of the presently emitted amount of light, the output path parameter, and light information originating from the light sensor; and controlling the dimming level of the luminaire on basis of the external illumination value in order to meet a predetermined illumination condition for the total illumination at the second level. | 05-08-2014 |
20140147126 | Method, system and device for transmitting lighting device data - It is presented a method for transmitting lighting device data. The method comprises the steps of obtaining, in a lighting device, a subset of lighting device data, the lighting device data containing information of the lighting device, transmitting, from the lighting device, using light, the subset of lighting device data, and repeating the above steps until all subsets jointly corresponding to the complete lighting device data have been transmitted. A corresponding lighting device and lighting system are also presented. | 05-29-2014 |
20140314420 | Light detection system and method - There is provided a light detection system which is capable of determining in light embedded codes by detecting light in a scene which is illuminated by an illumination system ( | 10-23-2014 |
20140374487 | LIGHT DETECTOR - The present invention relates to a light detector arranged to detect coded light emitted from at least one light source. The light detector ( | 12-25-2014 |
20140375217 | VISIBLE LIGHT COMMUNICATIONS USING A REMOTE CONTROL - According to one aspect of the disclosure, a lighting system comprises a remote control unit ( | 12-25-2014 |
20150028763 | MODULATION OF LIGHT EMITTED BY A LIGHTING DEVICE, USING PLURALITY OF DIFFERENT MODULATION PERIODS - The possibility to emit and detect coded light, whereby data is modulated into the light, is known. According to one aspect of the present disclosure, to reduce the risk of the modulation going undetected due to possible frequency blind spots in the detection spectrum, the lighting device ( | 01-29-2015 |