Distance measuring apparatus
US6587185B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2000 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Sep 11, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/1532
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a distance measuring apparatus 1 having a projector 10 that projects pulse light P outside and a light receiver 20 that receives the pulse light being reflected in the outside and performs photoelectric conversion, and outputting measurement data DL responsive to a time Tf from the transmission point of time to the reception point of time of the pulse light, the following are provided: determining means 311 for determining whether a received light waveform DP is correct or includes at least two incorrect waveforms based on an output signal SP of the light receiver 20; and warning data outputting means 312 for outputting warning data DE responsive to the result of the determination when the determining means 311 determines that the received light waveform DP is incorrect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.