Invention Grant
- Patent Title: Coordinate indicating apparatus and coordinate measurement apparatus for measuring input position of coordinate indicating apparatus
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Application No.: US16299789Application Date: 2019-03-12
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Publication No.: US10754468B2Publication Date: 2020-08-25
- Inventor: Gwan-Hyung Kim
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Jefferson IP Law, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@4205b073
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/0354 ; G06F3/044 ; G06F3/038

Abstract:
A coordinate measurement system including a coordinate indicating apparatus and a coordinate measurement apparatus for determining a position of a contact object including the coordinate indicating apparatus. The coordinate measurement apparatus includes a channel electrode unit including one or more electrodes, wherein capacitance of each of the one or more electrodes or capacitance between the one or more electrodes is changed based on a change in the position of the contact object, and a controller for applying an electrical signal to the channel electrode unit or measuring a reception signal input to the channel electrode unit. The coordinate indicating apparatus includes a conductive tip for forming capacitance with the one or more electrodes of the channel electrode unit, and a resonant circuit unit for generating identification information of the coordinate indicating apparatus, wherein the resonant circuit unit is connected to the conductive tip.
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