Parallel analog-to-digital conversion method, device implementing said method and imaging detector comprising said device
US8658959B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 30, 2011 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Jun 20, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/76
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An ADC includes a single circuit for generating reference voltages that are constant and then decreasing over time. The ADC includes a constant current source and a resistive bridge connected to the current source. A voltage source produces a decreasing voltage on a node of the bridge. The ADC also includes a contact breaker for the connection of the voltage source to the node. The ADC also includes a digitization circuit which includes a means for comparing a voltage, a means for selecting a reference voltage, a means for counting, and a means for storing on the one hand, a reference associated with the constant reference voltage which is immediately lower than or equal to the voltage for conversion, and on the other hand, the number of counted time units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.