Distance-measuring imaging device, distance measuring method of distance-measuring imaging device, and solid-state imaging device
US11769775B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2020 |
| Grant date | Sep 26, 2023 |
| Priority date | — |
| Expiry date | Dec 9, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/813
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A distance-measuring imaging device includes a light source that applies light according to timing of a light emission signal; a solid-state imager that performs, for an object, exposure according to timing of an exposure signal, and generates raw data corresponding to an exposure amount of the exposure; a signal amount comparator that determines a magnitude relationship in signal amount in the raw data; and a distance calculator that generates and outputs a distance signal based on a determination result. The solid-state imager accumulates, in each of different signal accumulation regions for accumulating signals detected in a same pixel, a signal by exposure in an exposure period that differs in exposure signal timing. The signal amount comparator determines the magnitude relationship between the signals accumulated in the signal accumulation regions. The distance calculator calculates the distance to the object using an arithmetic expression selected depending on the determination result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.