Readout circuit coupled via a coupling line to a pixel and a method for reading a pixel using capacitance of the coupling line
US9930278B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Oct 27, 2015 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Oct 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device that may include a pixel and a readout circuit, wherein the pixel is coupled to the readout circuit via coupling lines that comprises an output line and a reset line; wherein the readout circuit comprises (a) a comparator that is configured to track a coupling line electrical parameter to generate a pulse that is responsive to value of the electrical parameter, and (b) a pulse width to digital converter for outputting a digital output signal that is responsive to a width of the pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.