Method and system to determine distance using time of flight measurement comprising a control circuitry identifying which row of photosensitive image region has the captured image illumination stripe
US11531094B2 · kind B2 · utility
0Cited by
7References
10Claims
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Key dates
| Filing date | Mar 21, 2018 |
| Grant date | Dec 20, 2022 |
| Priority date | — |
| Expiry date | Dec 23, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/894
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A time of flight sensor has an image region and a storage region on a device which may be a CCD. A pulse of light illuminates an object, and an image illumination stripe is recorded on the image region. In a distance determining step, the image region is clocked after emitting the pulse of light and the row in which the image illumination stripe is illuminated gives a measure of the distance to the object. The apparatus can self calibrated by emitting a pulse of light without clocking the image region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.