Time-of-flight camera with motion detection
US9625569B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 11, 2013 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Dec 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/894
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for operating a time-of-flight camera including a time-of-flight sensor comprising an array of time-of-flight pixels with at least two integration nodes, wherein in a 3D mode the time-of-flight sensor and an illumination means are operated by means of a modulation signal and on the basis of the charges accumulated at the integration nodes distance values are determined, characterized in that in a power saving mode the time-of-flight sensor is operated with a control signal for motion detection, the frequency of which is lower than a lowest frequency of the modulation signal for a distance determination in the 3D mode, wherein an object motion is determined based on a differential value at the integration nodes is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.