公开(公告)号：US20150108328A1

公开(公告)日：2015-04-23

申请号：US14061557

申请日：2013-10-23

Applicant: General Electric Company

Inventor： Jianjun Guo ,  Chang Lyong Kim ,  David Leo McDaniel ,  James Lindgren Malaney ,  Sergei Ivanovich Dolinsky

IPC: H04N5/361 ,  G01J1/18

CPC classification number: H04N5/361 ,  G01J1/18 ,  G01J2001/186 ,  G01J2001/444 ,  G01T1/249 ,  H01L31/02164 ,  H04N5/2176

Abstract: A compensating current is applied at one or more points in a signal processing path to compensate for one or both of a dark or offset current present in an input signal. In certain implementations, the dark or offset current is present in a signal generated by a photomultiplier device. The dark or offset current may be monitored in an output of the signal processing path and, the monitoring being used to determine how much compensation is needed in the signal processing path and to allocate where in the signal processing path the compensation current will be applied.

Abstract translation: 在信号处理路径中的一个或多个点处施加补偿电流以补偿输入信号中存在的暗或偏移电流中的一个或两个。 在某些实施方案中，暗或偏移电流存在于由光电倍增器装置产生的信号中。 可以在信号处理路径的输出中监视暗或偏移电流，并且监视用于确定在信号处理路径中需要多少补偿并且在信号处理路径中分配补偿电流将被施加的位置。