Patent ID: 9130674
Filing Date: 2015-09-08
Classification: H04B

Abstract:
1. A sensing device configured to receive light emitted from a plurality of light sources, at least some of the plurality of light sources emitting light comprising a light source identifier, the sensing device comprising: a sensing module comprising: a first photo sensor unit configured to receive at least a portion of the light emitted from the plurality of light sources, the first photo sensor unit comprising a plurality of photo sensors, at least some of the plurality of photo sensors being configured to detect light impinging on said photo sensor; a light selection unit configured to receive at least a portion of the light emitted from the plurality of light sources; and a second photo sensor unit configured to generate a signal corresponding to light impinging thereon; the light selection unit being configured to selectively convey a selected portion of light received by the light selection unit to the second photo sensor unit; the light selection unit being arranged relatively to the first photo sensor unit in such a way that the selected portion of light is associated with a photo sensor of the plurality of photo sensors of the first photo sensor unit detecting light; and a processing module connectable to the sensing module, the processing module being configured to determine a light source identifier of the selected portion of light for identifying a light source from which the selected portion of light originates on basis of a signal generated by the second photo sensor unit.