Solid-state image pick-up device of the charge-coupled device type synchronizing drive signals for a full-frame read-out
US5705837A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1995 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Jan 13, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/1536
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A solid-state CCD image pick-up device includes optoelectric transducing elements corresponding to pixels vertically and horizontally arrayed in a matrix forming column linear arrays defining a column direction and at least one vertical charge transfer path associated with a corresponding adjacent column linear array. Pixel signals are vertically transferred from the column linear arrays to the vertical charge transfer paths such that gate signals occurring at predetermined times are applied to gate electrodes of the vertical charge transfer paths to permit the pixel signals to be scan read by a horizontal charge transfer path. Switching elements are provided for transfer gate electrodes and a drive circuit sequentially generates drive signals for groups of gate electrodes during periods in which the switching elements are rendered conductive to allow a full frame scan read to be performed by supplying a predetermined number of timing signals to the gate electrodes. The pick-up device can be fabricated with high density integration and high pixel density and can be provided with an improved vertical overflow drain structure. The image pick-up device also provides an electronic shut…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.