Sigma-delta ADC with integrated raw image scaling filter
US9342865B2 · kind B2 · utility
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Key dates
| Filing date | Oct 15, 2015 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Oct 15, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10024
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method of processing raw image pixel information includes an integrated decimation filter and raw image scaling filter for a set of M columns of raw image pixel information. The decimation filter operates in the time domain; for example, to calculate a weighted average of time samples. The raw image scaling filter operates in the spatial domain; for example, to calculate a weighted average of spatial samples. The raw image pixel information is modulated by a sigma-delta analog-to-digital modulator. The system and method scale the raw image pixel information by a factor of 1/N. M and N are positive integers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.