Invention Grant
- Patent Title: Touchpen for capacitive touch panel and method of detecting a position of a touchpen
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Application No.: US14381162Application Date: 2013-09-26
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Publication No.: US09965053B2Publication Date: 2018-05-08
- Inventor: Magnus Ola Johansson , Peter Ljung , Alexander Hunt
- Applicant: SONY CORPORATION
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Sony Corporation,Sony Mobile Communications Inc.
- Current Assignee: Sony Corporation,Sony Mobile Communications Inc.
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Tucker Ellis, LLP
- International Application: PCT/IB2013/002142 WO 20130926
- International Announcement: WO2015/044701 WO 20150402
- Main IPC: G06F3/0354
- IPC: G06F3/0354 ; G06F3/044

Abstract:
The disclosure relates to the technical field of capacitive touch panels and discloses a touchpen which may be used in mobile phones, computers and other devices with touch panels for writing characters, letters and other symbols. In particular it relates to a capacitive touchpen 10 for inputting information into an electronic device 1 through touching of a capacitive touch panel 30, the capacitive pen comprising an elongated body member 11 comprising a conductive part 13 and a tip 12 disposed at one end of the body member 11 having a contact surface 14 for contacting the capacitive touch panel 30. The conductive part 13 is configured such that the distortion of the touch panel's electrostatic field caused by the conductive part 13 when changing the position of the touchpen 10 in relation to the capacitive touch panel 30, when the contact surface is kept in contact with the touch panel 30, is sufficient to register a change in capacitance by the capacitive touch panel 30. The disclosure further relates to methods for detecting the position of a touch pen as well as to an electronic device and a computer program.
Public/Granted literature
- US20150293613A1 TOUCHPEN FOR CAPACITIVE TOUCH PANEL AND METHOD OF DETECTING A POSITION OF A TOUCHPEN Public/Granted day:2015-10-15
Information query
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