Exposure control device and exposure control method
US11070737B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 21, 2020 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Sep 21, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2300/105
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An exposure control device of a vehicle-mounted camera comprises an illuminance level determination unit, a plurality of timers, a timer operating unit, and an exposure level determination unit. The illuminance level determination unit determines that an illumination level of an external light illuminance corresponds to one of a plurality of illuminance levels. The timers each provided for a corresponding one of a plurality of change modes, the change modes being defined among the plurality of illuminance levels, or among a plurality of exposure levels for an exposure of a vehicular camera. The timer operating unit operates each of the timers in accordance with a state of change of the illuminance level of the external light illuminance. The exposure level determination unit determines one of the exposure levels for the exposure of the vehicular camera based on a count state of each of the timers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.