US 9,871,589 B2 · Techniques for raster line alignment in light-based communication

Abstract

Techniques are disclosed for providing proper raster line alignment of a camera or other light-sensing device of a receiver device relative to a transmitting light-based communication (LCom)-enabled luminaire to establish reliable LCom there between. In accordance with some embodiments, proper alignment can be provided automatically (e.g., by the receiver device and/or other suitable controller). In accordance with some embodiments, proper alignment can be provided by the user. In some instances in which a user is to be involved in the alignment process, the receiver device may be configured, for example, to instruct or otherwise guide the user in the process of properly aligning the receiver device relative to a given transmitting LCom-enabled luminaire.

Claims17

Dependent claims

A computing device comprising:

an image capture device;
and
a processor configured to:
assess alignment of a raster line of the image capture device relative to at least one solid-state luminaire transmitting a pulsing light signal encoded with data by:
determining a position of the at least one solid-state luminaire within a field of view (FOV) of the image capture device;
determining a geometry of the at least one solid-state luminaire;
and
determining a raster direction of the image capture device;
and
provide, in response to misalignment between the raster line of the image capture device and the at least one solid-state luminaire, instruction to align the raster line of the image capture device with the at least one solid-state luminaire.

7 more elements

A non-transitory computer program product encoded with instructions that, when executed by one or more processors, causes a process to be carried out, the process comprising:

assessing alignment of a raster line of an image capture device relative to at least one solid-state luminaire transmitting a pulsing light signal encoded with data by:
determining a position of the at least one solid-state luminaire within a field of view (FOV) of the image capture device;
determining a geometry of the at least one solid-state luminaire;
and
determining a raster direction of the image capture device;
and
in response to misalignment between the raster line of the image capture device and the at least one solid-state luminaire, providing instruction to align the raster line of the image capture device with the at least one solid-state luminaire.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/442,860Filed 27 Feb 2017 · continuation

Priority

25 Mar 2014

Published

US 2017/0170899 A115 Jun 2017

Granted

16 Jan 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification27 codes

H04B 10/116
Indoor or close-range type systems: visible light communication
G01C 3/08
Use of electric means to obtain final indication: use of electric radiation detectors
G01C 21/206
Instruments for performing navigational calculations: specially adapted for indoor navigation
G01S 1/7032
Details: transmitters

Family

Application61/970,307Us provisional application · filed 25 Mar 2014

Application61/970,305Us provisional application · filed 25 Mar 2014

Application61/970,310Us provisional application · filed 25 Mar 2014

Application61/970,321Us provisional application · filed 25 Mar 2014

Application61/970,325Us provisional application · filed 25 Mar 2014

Application14/572,130Parent of this continuation · filed 16 Dec 2014

US 2017/0170899 A1Pre-grant publication · published 15 Jun 2017

US 9,621,266 B2Parent of this continuation

US 2015/0104185 A1Published application

US 9,871,589 B2This patent

From the US filing history. Foreign family members aren’t listed.

Techniques for raster line alignment in light-based communication

Life of this patent

Techniques for raster line alignment in light-based communication

Life of this patent

Abstract

Claims17