Invention Grant
- Patent Title: Multi-touch screen device
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Application No.: US14388237Application Date: 2013-03-22
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Publication No.: US09671882B2Publication Date: 2017-06-06
- Inventor: Suk Min An , Hong Hee Han , Gu Berm Jung
- Applicant: RNDPLUS CO., LTD.
- Applicant Address: KR Goyang-si, Gyeonggi-do
- Assignee: RNDPLUS CO., LTD.
- Current Assignee: RNDPLUS CO., LTD.
- Current Assignee Address: KR Goyang-si, Gyeonggi-do
- Agency: Novick, Kim & Lee, PLLC
- Agent Jae Youn Kim
- Priority: KR10-2012-0030308 20120326
- International Application: PCT/KR2013/002382 WO 20130322
- International Announcement: WO2013/147464 WO 20131003
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/042

Abstract:
Provided is a multi-touch screen device that may calculate x and y orthogonal coordinates of a touch area even if a receiving/transmitting element is arranged on only one of the x-axis and the y-axis. The receiving/transmitting element is not arranged on both the x-axis and the y-axis so that an infrared ray scans a touch area in a matrix configuration, but an infrared receiving/transmitting element is arranged on only one of the x-axis and y-axis so that one receiving module sequentially scans the touch area using a right-angle scan measurement signal and an oblique-angle scan measurement signal. The multi-touch screen device may decrease the number of receiving/transmitting elements for use and solve a ghost image problem that occurs in a multi-touch operation that uses infrared rays.
Public/Granted literature
- US20150042582A1 MULTI-TOUCH SCREEN DEVICE Public/Granted day:2015-02-12
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