Invention Grant
- Patent Title: Tablet capable of sensing location using electromagnetic induction and electrostatic capacitance
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Application No.: US14902590Application Date: 2014-07-02
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Publication No.: US09772660B2Publication Date: 2017-09-26
- Inventor: Young Kee Ryu
- Applicant: THE HAN INC.
- Applicant Address: KR
- Assignee: THE HAN INC.
- Current Assignee: THE HAN INC.
- Current Assignee Address: KR
- Agency: Renaissance IP Law Group LLP
- Priority: KR10-2013-0077691 20130703
- International Application: PCT/KR2014/005915 WO 20140702
- International Announcement: WO2015/002464 WO 20150108
- Main IPC: G06F1/16
- IPC: G06F1/16 ; G06F3/046 ; G06F3/044 ; G06F3/041 ; G06F3/0354 ; G06F3/038

Abstract:
The present invention relates to a tablet capable of sensing a location using electromagnetic induction and electrostatic capacitance. The tablet comprises: a loop antenna, having a closed-loop shape for surrounding a sensing area, capable of sensing an electromagnetic wave emitted from an electronic pen; a first line antenna provided with a plurality of first conductive patterns, both ends of each of the plurality of first conductive patterns being located on one side of the first line antenna; a second line antenna provided with a plurality of second conductive patterns which cross the plurality of first conductive patterns in the sensing area, both ends of each of the plurality of second conductive patterns being located on the side on which the both ends of each of the plurality of first conductive patterns are located; and a control circuit for sensing a location using electromagnetic induction and electrostatic capacitance by controlling a connection relation between the plurality of first conductive patterns and the plurality of second conductive patterns. Accordingly, it is possible to selectively recognize the manipulation of the electronic pen and the touch of a finger with the same antenna pattern.
Public/Granted literature
- US20160179134A1 TABLET CAPABLE OF SENSING LOCATION USING ELECTROMAGNETIC INDUCTION AND ELECTROSTATIC CAPACITANCE Public/Granted day:2016-06-23
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