Invention Grant
- Patent Title: Operation device, position detection system, and method for controlling operation device
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Application No.: US16407239Application Date: 2019-05-09
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Publication No.: US10775911B2Publication Date: 2020-09-15
- Inventor: Shingo Wakimoto
- Applicant: SEIKO EPSON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SEIKO EPSON CORPORATION
- Current Assignee: SEIKO EPSON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@5c4d1728
- Main IPC: G06F3/038
- IPC: G06F3/038 ; G02B27/20 ; H04N9/31

Abstract:
A pointing element used for an operation on a screen includes: a tip light emitting unit; and a control unit which causes the tip light emitting unit to emit light and thus transmits signal light. The control unit causes the tip light emitting unit to emit light in a first light emitting mode in a state of being in contact with the screen. The control unit causes the tip light emitting unit to emit light in a second light emitting mode having a smaller amount of light than the first light emitting mode, in a state of being not in contact with the screen.
Information query
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