Refrigerator and control method for the same
US9920979B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2014 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Jun 26, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2700/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A refrigerator and a control method for the same are disclosed. A refrigerator includes a storage compartment, a drawer movably provided in the storage compartment and provided with a marker, a camera that photographs inside the drawer from outside the drawer, and a controller that senses a position of the marker in photographs taken through the camera at time intervals, and that determines state information about the drawer based on a change in position of the marker in the photographs. A method includes recognizing closing of the drawer by sensing a start of opening of the drawer; acquiring an image of the drawer interior using the camera; processing the image to recognize the marker from the image; tracing a movement of the marker; acquiring a final image of the drawer interior using the camera when closing of the drawer begins; and displaying the final image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.