Patent ID: 9712234
Date: 2017-07-18
CPC Classifications: G01S,H04B,H04W,H05B

Claim:
1. A location-aware communication system for mobile devices comprising: (a) a plurality of light transmission units spatially dispersed in an area through which a mobile device may move, the light transmission units outputting a light signal into the area including an identifier for each given light transmission unit; (b) a mobile device including: (c) a location server communicating with the mobile device; wherein the mobile device and location server execute stored programs held in non-transitory medium to: wherein the orientation sensing system includes a sensor sensing at least one of roll and pitch of the mobile device with respect to gravity, wherein the orientation sensing system includes sensors sensing yaw of the device with respect to a predefined azimuth heading, wherein the correction of the intensity of the light signal at the mobile device uses predetermined relationships between light dispersion from the given light transmission unit as a function of angle and light sensitivity of the mobile device's light sensor unit as a function of angle and a determination of a degree of alignment between the light transmission unit and the light sensor unit based on the orientation of the mobile device.