公开(公告)号：US20190033079A1

公开(公告)日：2019-01-31

申请号：US15663605

申请日：2017-07-28

Applicant: QUALCOMM Incorporated

Inventor： Hua WANG ,  Kenneth VAVRECK ,  Jie ZHENG

IPC: G01C21/20 ,  H04B10/116 ,  H04B10/114

Abstract: Techniques for determining a position of a mobile device using visible light communication signals are provided. An example device includes memory and a processor configured to in response to a determination that at least one first image of a plurality of images stored in the memory is of a modulated light signal transmitted by a light source and comprising coded information, determine a spatial location of a reference point of the light source based on the coded information, in response to a determination that at least one second image of the plurality of images is of an unmodulated light signal emanating from the light source, determine an image location of the reference point of the light source in the at least one second image, and determine a position of the mobile wireless communication device based on the image location of the reference point and the spatial location of the reference point.

公开(公告)号：US20160323035A1

公开(公告)日：2016-11-03

申请号：US14832259

申请日：2015-08-21

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar JOVICIC ,  Mahadevi PILLAI PERUMAL ,  Kenneth VAVRECK

IPC: H04B10/116 ,  H04N5/353 ,  H04B10/079

CPC classification number: H04B10/116 ,  H04B10/0795 ,  H04N5/3532

Abstract: Disclosed are methods, systems, devices, apparatus, computer-/processor-readable media, and other implementations, including a method to decode a visible light communication (VLC) signal by capturing images of a light source emitting a light modulated signal comprising a temporal sequence of symbols to determine decoded symbols and to further determine at least one codeword from a list of candidate codewords.

Abstract translation: 公开了方法，系统，设备，装置，计算机/处理器可读介质和其他实现方式，包括通过捕获发射包含时间的光调制信号的光源的图像来解码可见光通信（VLC）信号的方法 符号序列以确定解码符号并且进一步从候选码字列表确定至少一个码字。