Multistage demodulation pixel and method
US8754939B2 · kind B2 · utility
12Cited by
3References
17Claims
0Family size
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Key dates
| Filing date | Nov 9, 2010 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Apr 25, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/894
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A demodulation structure for a n-tap pixel, mainly for 3D time-of-flight (TOF) applications uses a 2-stage switch structure for demodulating a modulated electromagnetic wave. An almost arbitrary number of storage sites per pixel can be implemented enabling an almost arbitrary number of samplings captured during one exposure. It also provides the option to demodulate and integrate different phasing samples according to the different modulation frequencies within the same exposure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.