Zoom method and apparatus
US12155933B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2023 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Feb 25, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/671
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A zoom method and an apparatus to improve zoom accuracy of a camera module are disclosed. The zoom method includes: controlling, based on a target focal length, the lens to move in different subregions when the lens moves in an operation region, and determining position information of the lens based on a position detection relationship of a subregion in which the lens is currently located. The lens is controlled to move based on a position of the lens detected when the lens moves, so that the lens can more accurately stop at a position corresponding to the target focal length. This helps improve focusing accuracy of the camera module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.