US 12,081,265 B2
Optical wireless communication system and device
Andries Van Wageningen, Wijlre (NL); Michel Germe, Cormelles le Royal (NL); Johan-Paul Marie Gerard Linnartz, Eindhoven (NL); Paul Henricus Johannes Maria Voorthuisen, Sint Oedenrode (NL); and Matthias Wendt, Wurselen (DE)
Assigned to SIGNIFY HOLDING B.V., Eindhoven (NL)
Appl. No. 17/766,694
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Oct. 5, 2020, PCT No. PCT/EP2020/077833
§ 371(c)(1), (2) Date Apr. 5, 2022,
PCT Pub. No. WO2021/069368, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 19202127 (EP), filed on Oct. 9, 2019.
Prior Publication US 2024/0072893 A1, Feb. 29, 2024
Int. Cl. H04B 10/114 (2013.01)
CPC H04B 10/114 (2013.01) 16 Claims
OG exemplary drawing
 
1. A client device for use in an optical wireless communication network, the network comprising a plurality of infrastructure nodes arranged on intersections of a grid structure in a first plane and configured to provide access points of the network, the grid structure comprising quadrilaterals each with an x-axis dimension equal to d1, a y-axis dimension equal to d2, and a diagonal dimension equal to d3, where d2 is greater than or equal to d1, the client device comprising:
an upward facing optical transducer configured to detect or transmit an optical wireless transmission from or to the network respectively, the transducer arranged to have a coverage area with at least two concentric segments; and a portion of the transducer configured to provide an outermost segment of the at least two concentric segments dimensioned such that:
when the client device is positioned in a second plane parallel to the first plane and at a distance from the first plane, said coverage area has a radius at said first plane greater than 0.5*d3.