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1. (WO2018138046) EXCHANGING MESSAGES USING VISIBLE LIGHT

Pub. No.:    WO/2018/138046    International Application No.:    PCT/EP2018/051431
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Tue Jan 23 00:59:59 CET 2018
IPC: H04B 10/116
Applicants: PHILIPS LIGHTING HOLDING B.V.
Inventors: ENGELEN, Dirk, Valentinus, René
VAN DE SLUIS, Bartel, Marinus
ALIAKSEYEU, Dzmitry, Viktorovich
Title: EXCHANGING MESSAGES USING VISIBLE LIGHT
Abstract:
A mobile device comprising: a processor configured to execute a two-way messaging application, comprising: a message leaving component configured to leave a message to be retrieved via a luminaire by: generating message content according to message generation inputs from a user of a mobile device; using at least one light sensing device to extract, from light emitted by the luminaire, a code embedded in the light as non-visible modulations; and using the received code to cause the message content to be stored in association with the luminaire for retrieval by one or more recipient users; and a message retrieving component configured to retrieve a message via a luminaire of the lighting system by: using the at least one light sensing device to extract the message content or data for retrieving the message embedded in the light as non-visible modulations, and output the message content via a user interface.