EP 0931381 A1 19990728 - UNIT AND METHOD FOR ENCODING PHOTODETECTOR SIGNAL, WITH CORRECTION OF INPUT LEVEL, AND USE OF SUCH A UNIT FOR A GAMMA-CAMERA
Title (en)
UNIT AND METHOD FOR ENCODING PHOTODETECTOR SIGNAL, WITH CORRECTION OF INPUT LEVEL, AND USE OF SUCH A UNIT FOR A GAMMA-CAMERA
Title (de)
KODIEREINHEIT UND -VERFAHREN FÜR LICHTDETEKTORSIGNALE MIT EINGANGSPEGELKORREKTUR UND ANWENDUNG SOLCH EINER EINHEIT IN EINEN GAMMA-KAMERA
Title (fr)
UNITE ET PROCEDE DE CODAGE DE SIGNAL DE PHOTODETECTEUR, A CORRECTION DE NIVEAU D'ENTREE, ET UTILISATION UNE TELLE UNITE POUR UNE GAMMA-CAMERA
Publication
Application
Priority
- FR 9701809 W 19971010
- FR 9612490 A 19961014
Abstract (en)
[origin: FR2754656A1] The invention concerns a unit encoding the analog electric signal of a photodetector (110) comprising an analog-to-digital-converter (112), connected to the photodetector (110), the analog-to digital converter (112) being capable for receiving the analog electric signal of the photodetector and transmitting an encoded corresponding digital signal. The invention is characterised in that the unit further comprises means (130) for automatically correcting the level of the signal received by the analog-to-digital converter (112) on the basis of an encoded signal transmitted by the analog-to-digital converter in the absence of a pulse from the photodetector. The invention is applicable to gamma-cameras.
IPC 1-7
IPC 8 full level
G01T 1/20 (2006.01); G01T 1/164 (2006.01); H03M 1/06 (2006.01); H03M 1/10 (2006.01); H03M 1/18 (2006.01); H03M 1/12 (2006.01)
CPC (source: EP)
G01T 1/1642 (2013.01); H03M 1/0607 (2013.01); H03M 1/12 (2013.01)
Citation (search report)
See references of WO 9817002A1
Designated contracting state (EPC)
DE GB IT NL
DOCDB simple family (publication)
FR 2754656 A1 19980417; FR 2754656 B1 19981218; EP 0931381 A1 19990728; JP 2001505729 A 20010424; WO 9817002 A1 19980423
DOCDB simple family (application)
FR 9612490 A 19961014; EP 97909383 A 19971010; FR 9701809 W 19971010; JP 51805998 A 19971010