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Patent Searching and Data


Title:
TABLET HAVING LINE ANTENNA WITH IMPROVED STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2013/147474
Kind Code:
A1
Abstract:
A tablet of the present invention comprises: a loop antenna having a closed loop shape forming a circumference of an electronic pen sensing region; a plurality of line antennas arranged in parallel with each other into the teeth of a comb shape; a line selection circuit to which the other ends of the plurality of line antennas are coupled; and a coordinate sensing circuit for controlling the selecting operation of the line selection circuit and determining the position of the electronic pen based on the selected line antenna using the induced voltage presented in a differential output by the magnetic force emitted from the electronic pen. Here, the plurality of line antennas arranged in parallel with each other are divided into at least two groups, wherein a first group has one end connected to the loop antenna and the other end coupled to the line selection circuit, and a second group has one end coupled to the line selection circuit and the other end connected to the loop antenna.

Inventors:
RYU YOUNG KEE (KR)
Application Number:
PCT/KR2013/002450
Publication Date:
October 03, 2013
Filing Date:
March 25, 2013
Export Citation:
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Assignee:
WINTOUCH CO LTD (KR)
International Classes:
G06F3/041; G06F3/03; H01Q7/00
Foreign References:
KR101124522B12012-03-19
KR20110027208A2011-03-16
KR20050005542A2005-01-13
KR20060119725A2006-11-24
KR101076369B12011-10-25
Attorney, Agent or Firm:
SESHIN PATENT & LAW FIRM (KR)
특허법인세신 (KR)
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