Title:
PROJECTION SYSTEM HAVING FUNCTION OF ELECTRONIC WHITEBOARD AND WIRELESS TABLET FUNCTION
Document Type and Number:
WIPO Patent Application WO/2015/137544
Kind Code:
A1
Abstract:
The present invention relates to a projection system having a new function of an electronic whiteboard and a wireless tablet function, comprising: an electronic pen having an infrared transmission unit; a projector comprising a projection module, a communication unit, an electronic pen location estimation module unit, a projection region coordinate setting unit, an electronic pen location tracking module unit, an infrared signal reception unit, and a location estimation unit; a terminal comprising a communication unit, a location information analysis unit, and an image application unit; and a display unit for displaying an image to which an image of the projector (20) has been applied, wherein an infrared reception unit installed in the projector obtains a location of the electronic pen by using an infrared oscillating signal generated by the electronic pen, the projector determines a location according to a movement of the electronic pen by setting reference coordinates in a region of an image projected from a projector module of the projector and transmits an image according to the determined location to the terminal such that the electronic pen has a writing function on a current image outputted to the terminal and a mouse mode function.
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Inventors:
KWON DOL (KR)
Application Number:
PCT/KR2014/002201
Publication Date:
September 17, 2015
Filing Date:
March 14, 2014
Export Citation:
Assignee:
ISLKOREA CO LTD (KR)
International Classes:
G06F3/00; G03B21/00
Domestic Patent References:
| WO2007144850A1 | 2007-12-21 |
Foreign References:
| KR20120093527A | 2012-08-23 | |||
| KR100921482B1 | 2009-10-13 | |||
| KR101026738B1 | 2011-04-08 | |||
| KR20110122897A | 2011-11-14 |
Attorney, Agent or Firm:
CYNN, Young-Doo (KR)
신영두 (KR)
신영두 (KR)
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