# US 2014/0045549 A1 · Configuration and management of light positioning system using digital pulse recognition

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- Number: US 2014/0045549 A1
- Document ID: US20140045549A1
- Status: Published application
- Kind: A1
- Application number: 14/019,376
- Filed: 2013-09-05
- Published: 2014-02-13
- Earliest claimed: 2011-07-26
- Assignees: Bytelight, Inc.
- Applicants: ByteLight, Inc.
- Inventors: Daniel RYAN; Aaron GANICK; Kelby GREEN
- Web page: https://patentgrep.com/patent/US20140045549A1

## CPC

- G01C 21/206: {specially adapted for indoor navigation}
- H04B 10/116: Visible light communication
- H04N 25/531: by controlling rolling shutters in CMOS SSIS
- H04W 4/33: for indoor environments, e.g. buildings
- H04W 4/38: for collecting sensor information
- H04M 2250/52: including functional features of a camera
- G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S)
- H04B: TRANSMISSION
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)

## Abstract

In one aspect, the present disclosure relates to a method for a method for hiding a camera preview feed of a mobile device application. The method may proceed by the mobile device application enabling an imaging sensor of the mobile device, where the software of the mobile device requires the mobile device application to display the camera preview feed when the imaging sensor is enabled. The method may continue by creating a camera preview surface for displaying the camera preview feed. The method may further continue by modifying the camera preview surface to be hidden from the mobile device user. The method may end by setting the camera preview feed to be displayed on the camera preview surface. In another aspect, the present disclosure further relates to modifying the camera preview surface by resizing the camera preview surface to be one pixel large.

## Claims

### Claim 1

A method for hiding, from a mobile device user, a camera preview feed of a mobile device application, wherein the camera preview feed comprises images captured by the imaging sensor, the method comprising:
enabling, by the mobile device application, an imaging sensor of the mobile device, wherein software of the mobile device requires the mobile device application to display the camera preview feed when the imaging sensor is enabled;
creating a camera preview surface for displaying the camera preview feed;
modifying the camera preview surface to be hidden from the mobile device user; and
setting the camera preview feed to be displayed on the camera preview surface.

### Claim 2 (depends on 1)

The method of claim 1, wherein modifying the camera preview surface comprises resizing the camera preview surface to be one pixel large.