Auto focusing apparatus and method using discrete cosine transform coefficients
US7502523B2 · kind B2 · utility
3Cited by
10References
14Claims
0Family size
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Key dates
| Filing date | Jun 23, 2005 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Jan 16, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/365
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed herein is an auto focusing apparatus and method for a camera. The auto focusing apparatus includes an image sensor unit, an Image Signal Processor (ISP) unit, a compression module, a focus value calculating unit, and an auto focus Digital Signal Processor (DSP).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.