公开(公告)号：US20180212678A1

公开(公告)日：2018-07-26

申请号：US15411698

申请日：2017-01-20

Applicant: QUALCOMM Incorporated

Inventor： Bapineedu Chowdary Gummadi ,  Ravi Shankar Kadambala ,  Vivek Veenam

IPC: H04B10/116 ,  H04N7/18 ,  H04M1/02

CPC classification number: H04B10/116 ,  H04N7/185

Abstract: Disclosed are techniques for optimizing visual light communication (VLC) processing performed at a mobile device. In an aspect, an image sensor of the mobile device having a rolling shutter captures a plurality of lines of an image frame, an image signal processor (ISP) coupled to the image sensor writes each line of the plurality of lines of the image frame into a dual port memory as each line of the plurality of lines of the image frame is received from the image sensor, and, for each line of the plurality of lines of the image frame, a VLC decoder of the mobile device reads a first line of the plurality of lines of the image frame from the dual port memory while the ISP writes a second line of the plurality of lines of the image frame to the dual port memory.

公开(公告)号：US20190020411A1

公开(公告)日：2019-01-17

申请号：US15649354

申请日：2017-07-13

Applicant: QUALCOMM Incorporated

Inventor： Ravi Shankar Kadambala ,  Bapineedu Chowdary Gummadi ,  Pradeep Veeramalla ,  Vivek Veenam

IPC: H04B10/116

Abstract: Methods, systems, and devices are described for processing Visual Light Communication (VLC) signals with a reduced number of pixels while maintaining a substantially complete field of view. One method may include receiving one or more VLC signals at an array of pixels and sampling their intensity. The sampling may comprise additively combining analog signals obtained from two or more pixels having like color to generate a plurality of combined VLC signal samples. The VLC signals may be decoded based on a plurality of the combined VLC signal samples.

公开(公告)号：US20180191436A1

公开(公告)日：2018-07-05

申请号：US15394499

申请日：2016-12-29

Applicant: QUALCOMM Incorporated

Inventor： Ravi Shankar Kadambala ,  Bapineedu Chowdary Gummadi ,  Vivek Veenam

IPC: H04B10/116 ,  G06T7/246 ,  G06T7/73

CPC classification number: H04B10/116 ,  G06T7/248 ,  G06T7/74 ,  G06T2207/10016 ,  G06T2207/30244 ,  H04M1/7253 ,  H04M2250/52 ,  H04W52/0254 ,  Y02D70/10 ,  Y02D70/12 ,  Y02D70/122 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/166 ,  Y02D70/26 ,  Y02D70/46

Abstract: Embodiments disclosed facilitate power and resource utilization efficiencies in User Equipment (UE) during Visible Light Communication (VLC). VLC may be used for UE pose determination and may involve image frame capture at relatively high frame rates thereby increasing resource utilization including power consumption in UEs. Disclosed embodiments determine a motion state of the UE during a first time period where a first plurality of image frames with VLC signals from at least one VLC source are captured with an image sensor. In some embodiments, VLC related functionality on the UE may be selectively disabled based on at least one of the determined motion state, and/or the determined usage of the one or more image frames.

公开(公告)号：US20190036604A1

公开(公告)日：2019-01-31

申请号：US15664079

申请日：2017-07-31

Applicant: QUALCOMM Incorporated

Inventor： Bapineedu Chowdary Gummadi ,  Ravi Shankar Kadambala ,  Vivek Veenam

IPC: H04B10/116 ,  H04B10/075

Abstract: Briefly, one particular example implementation is directed to an apparatus including a digital imager. In the particular example implementation, the image includes an array of pixels, in which at least some pixels are dedicated to measure light component signals, such as for an image, and at least other pixels are dedicated to measure Visible Light Communication (VLC) signals. It should be understood that the aforementioned particular implementation is merely an example and claimed subject matter is not necessarily limited to any particular aspect of this example implementation.

公开(公告)号：US20190035082A1

公开(公告)日：2019-01-31

申请号：US15664135

申请日：2017-07-31

Applicant: QUALCOMM Incorporated

Inventor： Ravi Shankar Kadambala ,  Bapineedu Chowdary Gummadi ,  Vivek Veenam

IPC: G06T7/11 ,  H04B10/116

Abstract: Briefly, one particular example implementation is directed to an apparatus including a digital imager. The digital imager, in the example implementation, includes an array of pixels to capture an image frame. At least some pixels are to measure light component signals for an image and are also to measure Visible Light Communication (VLC) signals. Circuitry to crop an image frame of light signal measurements is included so that, for light signal measurements that remain after cropping, extraction of VLC signal measurements from light component signal measurements is able to be employed. It should be understood that the aforementioned implementation is merely an example implementation, and claimed subject matter is not necessarily limited to any particular aspect thereof.

公开(公告)号：US20180191435A1

公开(公告)日：2018-07-05

申请号：US15394021

申请日：2016-12-29

Applicant: QUALCOMM Incorporated

Inventor： Bapineedu Chowdary Gummadi ,  Ravi Shankar Kadambala ,  Vivek Veenam

IPC: H04B10/116 ,  H04W4/02

CPC classification number: H04B10/116 ,  H04W4/029 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/20 ,  Y02D70/26

Abstract: Disclosed are systems and methods for power efficient visible light communication (VLC) scanning. In an aspect, a mobile device determines that the mobile device has lost view of a VLC light source, turns on, in response to determining that the mobile device has lost view of the VLC light source, a camera of the mobile device in a low-resolution mode to scan for any VLC light sources within view of the mobile device, and switches, based on detecting a detected VLC light source, the camera of the mobile device to a high-resolution mode to decode VLC signals from the detected VLC light source.