Solid-state image pickup device
US8723998B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2012 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Nov 6, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/56
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A solid-state image pickup device includes plural pixels, a voltage generator that generates a reference voltage, plural comparators that are aligned in one direction, and compare respective voltages output from the pixels with the reference voltage, a counter that counts in tandem with a change in the reference voltage generated by the voltage generator, plural buffer circuits that are connected in series with the counter, and each sequentially receives an output of the counter; plural latch circuits that take in a value input to an input terminal thereof according to respective trigger signals output from the comparators, a common signal line that is commonly connected to respective inputs of the latch circuits, and plural signal lines that are connected to respective outputs of the buffer circuits, and allow the output of the counter to propagate therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.