Imaging detector with improved spatial accuracy
US10261195B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 28, 2016 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Aug 27, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A detector array (112) of an imaging system (100) includes a radiation sensitive detector (202/204/206) configured to detect radiation and generates a signal indicative thereof and electronics (208) in electrical communication with the radiation sensitive detector. The electronics include a current-to-frequency converter (300) configured to convert the signal into a pulse train having a frequency indicative of a charge collected during an integration period. The electronics further include a residual charge collection circuit (322) electrically coupled to current-to-frequency converter. The residual charge collection circuit is configured to store charge collected by the integrator for an end portion of the integration period that does not results in a pulse of the pulse train, utilizing much of the electronics already in the current-to-frequency converter electronics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.