Data derandomizer for radiation imaging detection systems and method of operation
US4035776A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1974 |
| Grant date | Jul 12, 1977 |
| Priority date | — |
| Expiry date | Sep 6, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/1647
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A data derandomizer for use in a scintillation imaging system. The imaging system produces data signals representing radiation events and presents them to a continuously operating video tape recorder for recording and subsequent playback to an imaging apparatus. The recorder can accept the data signals only in discrete time slots. The digital signals are produced in response to radiation events occurring randomly in time and therefore also occur at random time intervals. A data stacking circuit provides for receipt and simultaneous storage of several data signals between the detector and the recorder, the storage being in priority levels according to the order of occurrence of the data signals. Inventory control circuitry controls the stacking circuit to present the data signals to the recorder synchronously with the time slots, notwithstanding the random occurrence of the data signals. The storage capacity of the stacking system reduces loss of data which would otherwise result from the occurrence of data signals at intervals spaced more closely than those of the time slots. The data stacking also enables the accumulation of several data signals which can be presented to the recor…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.