Title:
SMART DEVICE PERFORMING LED-ID/RF COMMUNICATION BY MEANS OF CAMERA, AND SYSTEM AND METHOD FOR PROVIDING LOCATION-BASED SERVICES USING SAME
Document Type and Number:
WIPO Patent Application WO/2015/064992
Kind Code:
A1
Abstract:
The present invention provides a smart device which can receive, by means of an image sensor of a camera, a visible light signal that is output by a light-emitting source such as lighting or a display, and which can transmit the visible light signal to another terminal and light-emitting source by means of an LED flash of the camera, thereby enabling transmission and reception of visible light communication by means of the camera, which is equipped as standard in the smart device, as well as enabling transmission and relay of data by connecting to RF communication such as WiFi, Bluetooth and UWB. Moreover, the present invention provides a system and a method for providing location-based services which measure an approximate current location of a user by means of an RF communication access point and measure the current location of the user in detail by receiving a visible light signal, which includes location information, from the light-emitting source, and thus can perform a high-precision indoor location recognition function linking visible light communication and RF communication and can provide guide image information, which comprises various additional information, on the basis of the location information of the user.
Inventors:
CHA JAE-SANG (KR)
Application Number:
PCT/KR2014/010152
Publication Date:
May 07, 2015
Filing Date:
October 28, 2014
Export Citation:
Assignee:
NAT UNIV SEOUL TECH CTENTER (KR)
International Classes:
H04W64/00; H04B10/116; H04W4/02; H04W4/029; H04W88/02
Foreign References:
| KR100594120B1 | 2006-06-28 | |||
| KR20060123580A | 2006-12-01 | |||
| KR20120131916A | 2012-12-05 | |||
| KR20130028809A | 2013-03-19 |
Attorney, Agent or Firm:
C.M.PATENT & LAW FIRM, LLP. (KR)
특허법인청맥 (KR)
특허법인청맥 (KR)
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