Solid-state image sensor and camera with charge-voltage converter
US9538112B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2015 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Feb 18, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensor including a photoelectric converter, a charge-voltage converter, a transfer transistor to transfer a charge from the photoelectric converter to the charge-voltage converter whereby potential of the charge-voltage converter changes to a first direction, an amplifier transistor to output a signal corresponding to potential of the charge-voltage converter to a column signal line, the amplifier transistor sequentially outputting, to the column signal line, noise level and light signal level, a capacitance between a control signal line and the charge-voltage converter, and a control unit to change a potential of the control signal line so that the potential of the charge-voltage converter changes to a second direction opposite to the first direction in a period in which the charge-voltage converter is in floating and which is prior to outputting the noise level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.