Method and system for asynchronous lamp identification

Abstract

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.

Description

technical field

[0001] Embodiments of the invention relate generally to the field of lighting systems and optical receivers, and more particularly, to systems and methods for embedding data into the luminance output of such lighting systems. Background technique

[0002] In recent years, highly advanced lighting systems are being developed which allow consumers to obtain the desired atmosphere of a particular room or space. These lighting systems move away from traditional control of individual light sources (on / off and dimming) to scene settings, where groups of light sources are controlled simultaneously. An example of such a lighting system is an arrangement of groups of light sources in a room, hall or vehicle.

[0003] Intuitive user interaction is considered to be one of the most important success factors for these scene-setting applications. Providing the user with information about light sources, such as localized identification of light sources, their capabilities...

Examples

Embodiment Construction

[0038] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

[0039] figure 1 Shown is a structure 100 , which in this case is a room, with an installed lighting system 110 . The lighting system 110 includes one or more light sources 120 and one or more controllers for controlling the light sources 120 ( figure 1 not shown). The light source 120 may include a high / low voltage gas discharge source, an inorganic / organic light emitting diode, a laser diode, an incandescent source, or a halogen source. The lighting system 110 may further include a remote control 130 that allows a user to control the light source 120 .

[0040] ...

technical field

[0001] Embodiments of the invention relate generally to the field of lighting systems and optical receivers, and more particularly, to systems and methods for embedding data into the luminance output of such lighting systems. Background technique

[0002] In recent years, highly advanced lighting systems are being developed which allow consumers to obtain the desired atmosphere of a particular room or space. These lighting systems move away from traditional control of individual light sources (on / off and dimming) to scene settings, where groups of light sources are controlled simultaneously. An example of such a lighting system is an arrangement of groups of light sources in a room, hall or vehicle.

[0003] Intuitive user interaction is considered to be one of the most important success factors for these scene-setting applications. Providing the user with information about light sources, such as localized identification of light sources, their capabilities...

Examples

Embodiment Construction

[0038] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

[0039] figure 1 Shown is a structure 100 , which in this case is a room, with an installed lighting system 110 . The lighting system 110 includes one or more light sources 120 and one or more controllers for controlling the light sources 120 ( figure 1 not shown). The light source 120 may include a high / low voltage gas discharge source, an inorganic / organic light emitting diode, a laser diode, an incandescent source, or a halogen source. The lighting system 110 may further include a remote control 130 that allows a user to control the light source 120 .

[0040] ...

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