Sensor device and detection method
US12181577B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2019 |
| Grant date | Dec 31, 2024 |
| Priority date | — |
| Expiry date | Apr 19, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V8/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided are a sensor device and a detection method. The sensor device includes: a light emitting unit transmitting a transmission signal toward a target; a light receiving unit receiving a reflected signal of the transmission signal and generating a binarized signal; a TDC delay line measurement unit and a waveform integration unit generating waveform data indicating temporal changes in the binarized signal and integrating the waveform data to generate integrated waveform data; a stage number calculation unit and a distance conversion unit calculating a near-side distance value and a far-side distance value from intersections of the integrated waveform data and a high threshold value and a low threshold value, respectively; and a determination unit determining whether the target is present on the basis of a distance value calculated from the near-side distance value and the far-side distance value and on the basis of a predetermined distance threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.