Signify Holding B.v.

Koninklijke Philips Corporation N.v.

Philips Lighting Holding B.v.

Marek Zbigniew Szczerba

Kiran Srinivas Challapali

Jianfeng Wang

Qing Li

Dave Alberto Tavares Cavalcanti

Hongqiang Zhai

Fulong Ma

Yi Qiang Yu

Michael Alex Van Hartskamp

Hongxin Chen

Marcin Gramza

Zhong Huang

Daniel Jozef Piotrowski

Xianneng Peng

Qin Zhao

Marcin Krzysztof Szczodrak

Martin Elixmann

Liang Jia

Andreas Johannes Gerrits

Marc Klein Middelink

Erik Gosuinus Petrus Schuijers

Arnoldus Werner Johannes Oomen

Albertus Cornelis Den Brinker

Jurgen Mario Vangeel

Michiel Adriaanszoon Klompenhouwer

Roger Peter Anna Delnoij

Stefan Marcus Verbrugh

Paulus Henricus Antonius Dillen, I

Petrus Antonius Verbeek

Michel Albertus Theodorus Klein Swormink

Arnoldus W J Oomen

Johannes Jozef Wilhelmus Kalfs

Johannes Martinus Maria Hensing

Franciscus Laurentius Van Boekhout

Arnoldus Werner Johannnes Oomen

The invention provides a lighting device comprising a transmitter, a controller and a sensor; wherein the controller is configured to control the transmitter to repeatedly transmit a second wireless message interleaved with a first wireless message, wherein the first wireless message has a first duration and comprises a first signal, wherein the second wireless message has a second duration and comprises a second signal; wherein the first duration and/or the second duration is adaptive during a lifetime of the lighting device; wherein the controller is configured to receive a measurement from the sensor and control the transmitter to transmit the second wireless message comprising the second signal comprising the measurement.

Lighting device

The invention provides a light management information system for an outdoor lighting network system, having a plurality of outdoor light units each including at least one sensor type, where each of the light units communicates with at least one other light unit, at least one user input/output device in communication with at one or more of said outdoor light units, a central management system in communication with light units, said central management system sends control commands and/or information to one or more of said outdoor light units, in response to received outdoor light unit status/sensor information from one or more of said outdoor light units or received user information requests from said user input/output device, a resource server in communication with said central management system, wherein the central management system uses the light unit status/sensor information and resources from the resource server to provide information to the user input/output device and/or reconfigure one or more of the lights units.

Methods and apparatus for information management and control of outdoor lighting networks

According to an aspect of the invention, a method of controlling a lighting device is provided. The method comprises receiving an input from a dimmer, the input being representative of a desired light output level for the lighting device. A control voltage for operating a driver unit comprised in the lighting device is computed based on the input and a calibrated relationship between power consumption and control voltage for the lighting device.

Method of controlling a lighting device

A controller comprising: presence detection logic, calibration logic, and an input for receiving a reading from a light sensor representing a sensed light level. The presence detection logic is for detecting presence events based on a presence sensor, and is configured to indicate a set-point to operate at least one lighting device in dependence on a positive detection of presence. The calibration logic is for performing a calibration operation, which is performed by causing a light output of the lighting device to change between a first, lower level and a second, higher level, and by and calibrating the set-point based on the reading from the light sensor under influence of the first and second levels. The calibration logic is configured to trigger this calibration operation in response to the positive detection of presence.

Calibration operation of a lighting device

A stereo audio decoder generates a set of stereo output channels in response to a parametric audio input including signal parameters and stereo related parameters. A parameter processor generates two different set of parameters based on the input signal parameters thus up-mixing the signal parameters by altering or manipulating the signal parameters corresponding to the stereo related parameters. The two different parameters are synthesized by separate signal synthesizers to form respective stereo output channels. The signal synthesizers may be sinusoidal synthesizers, and the decoder also includes transient and noise synthesizers to generate transient and noise signal portions to be applied to the stereo output channels. Further, different transient and noise signal portions to the output channels may be provided by applying different gains based on the stereo related parameter. The two different parameters may be determined from current and previous signal parameter inputs using an input delay line.

Low complexity parametric stereo decoder

A device () is arranged for synthesizing sound represented by sets of parameters, each set comprising noise parameters (NP) representing noise components of the sound and optionally also other parameters representing other components, such as transients and sinusoids. Each set of parameters may correspond with a sound channel, such as a MIDI voice. In order to reduce the computational load, the device comprises a selection unit () for selecting a limited number of sets from the total number of sets on the basis of a perceptual relevance value, such as the amplitude or energy. The device further comprises a synthesizing unit () for synthesizing the noise components using the noise parameters of the selected sets only.

Sound synthesis

A device for synthesizing sound having sinusoidal components includes a selector for selecting a limited number of the sinusoidal components from each of a number of frequency bands using a perceptual relevance value. The device further includes a synthesizer for synthesizing the selected sinusoidal components only. The frequency bands may be ERB based. The perceptual relevance value may involve the amplitude of the respective sinusoidal component, and/or the envelope of the respective channel.

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Eindhoven, Netherlands

Marek Zbigniew Szczerba