Patent ID: 9244179
Filing Date: 2016-01-26
CPC Classification: A61B,E02D,G01T,H03F,H03M

Claim Text:
1. An integrated circuit in a PET imaging system with a plurality of photodetectors, wherein the plurality of photodetectors are optically coupled to scintillation crystals for a PET scanner, comprising: a plurality of differential transimpedance amplifiers with differential inputs and differential outputs, wherein differential inputs for each differential transimpedance amplifier of the plurality of differential transimpedance amplifiers are electrically connected to a photodetector of the plurality of photodetectors; a plurality of level crossing analog-to-digital converters wherein differential inputs for each level crossing analog-to-digital converter of the plurality of level crossing analog-to-digital converters are electrically connected to differential outputs of a differential transimpedance amplifier of the plurality of differential transimpedance amplifiers, wherein each level crossing analog-to-digital converter of the plurality of level crossing analog-to-digital converters, comprises: