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	Self-Mixing Interference Based Sensors for Characterizing Touch Input
	WINKLER, MARK T.; MUTLU, MEHMET; MOMTAHAN, OMID; CHEN, TONG; CAI, WENRUI; NGUYEN, CHAU H.; GOZZINI, GIOVANNI; MCCORD, MICHAEL K.; SHAMIR, ORIT A.; HOLENARSIPUR, PRASHANTH S.
	2019-10-17
著作权人	APPLE INC.
专利号	US20190317639A1
国家	美国
文献子类	发明申请
其他题名	Self-Mixing Interference Based Sensors for Characterizing Touch Input
英文摘要	Disclosed herein are electronic devices having touch input surfaces. A user's touch input or press on the touch input surface is detected using a set of lasers, such as vertical-cavity surface-emitting lasers (VCSELs) that emit beams of light toward the touch input surface. The user's touch causes changes in the self-mixing interference within the VCSEL of the emitted light with reflected light, such as from the touch input surface. Deflection and movement (e.g., drag motion) of the user's touch is determined from detected changes in the VCSELs' operation due to the self-mixing interference.
公开日期	2019-10-17
申请日期	2019-04-12
状态	申请中
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/57265]
专题	半导体激光器专利数据库
作者单位	APPLE INC.
推荐引用方式 GB/T 7714	WINKLER, MARK T.,MUTLU, MEHMET,MOMTAHAN, OMID,et al. Self-Mixing Interference Based Sensors for Characterizing Touch Input. US20190317639A1. 2019-10-17.

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