| 发明名称 | Electronic device | ||
| 摘要 | An electronic device includes a photodetector, a notification light emitter, and a determination component. The photodetector detects reflected light of light from a projection device within a detection region, the projection device projecting the light in a projection region on a projection surface. The notification light emitter emits on the projection surface two notification lines of visible wavelength that approach each other towards the photodetector. The determination component determines that the projection region is at least partially located outside the detection region based on a detection result of the photodetector. The determination component further determines that an edge of the projection region that is located closest to the photodetector is substantially parallel to a line segment that connects ends of the two notification lines. | ||
| 申请公布号 | US9581435(B2) | 申请公布日期 | 2017.02.28 |
| 申请号 | US201615168290 | 申请日期 | 2016.05.31 |
| 申请人 | FUNAI ELECTRIC CO., LTD. | 发明人 | Yamagiwa Daisuke |
| 分类号 | G01B11/14;H04N9/31;G06F3/042;G06F3/041;G03B21/14 | 主分类号 | G01B11/14 |
| 代理机构 | Global IP Counselors, LLP | 代理人 | Global IP Counselors, LLP |
| 主权项 | 1. An electronic device comprising: a photodetector that detects reflected light of light from a projection device within a detection region, the projection device projecting the light in a projection region on a projection surface; a notification light emitter that emits on the projection surface two notification lines of visible wavelength that approach each other towards the photodetector; and a controller that determines that the projection region is at least partially located outside the detection region based on a detection result of the photodetector, the controller further determining that an edge of the projection region that is located closest to the photodetector is substantially parallel to a line segment that connects ends of the two notification lines. | ||
| 地址 | Osaka JP | ||