Low power continuous dashcam recording
US12244921B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 2023 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Aug 29, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/667
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system including an image sensor mounted on a vehicle, memory storing data captured by the image sensor, a buffer for temporarily storing data, an inertial measurement unit (IMU) that senses an impact on the vehicle, a switch connected to the image sensor, a main system on chip (SOC) connected to the image sensor via the switch, that stores data in the memory, the main SOC being in a dormant power mode while the vehicle is parked or idle, and in an active power mode while the vehicle is moving, and transitioning from dormant mode to active mode when the IMU senses that the vehicle suffers an impact, and a low-power secondary SOC microcontroller connected to the image sensor via the switch, that manages power of the system and stores data in the buffer, the buffer storing data that was captured prior to and upon the IMU detecting an impact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.