公开(公告)号：US10044958B1

公开(公告)日：2018-08-07

申请号：US15427765

申请日：2017-02-08

Applicant: Sensors Unlimited, Inc.

Inventor： John Liobe ,  Andrew Eckhardt ,  Joshua Lund

IPC: H04N5/365 ,  H04N5/378 ,  H04N5/374

Abstract: A method includes correcting for at least one of gain and offset during frame integration for photodetector events. Gain and offset correction is performed separately in each pixel of a digital read-out integrated circuit (DROIC) for a plurality of corresponding pixels in a photodetector array. First and second binary counters respectively use a gain register and an offset register to implement gain and offset correction.

公开(公告)号：US20160282179A1

公开(公告)日：2016-09-29

申请号：US14938409

申请日：2015-11-11

Applicant: Sensors Unlimited, Inc.

Inventor： Jonathan Nazemi ,  Robert Rozploch ,  John P. Barby ,  Andrew Eckhardt

IPC: G01J1/44

CPC classification number: G01S17/66 ,  F41G3/145 ,  F41G3/165 ,  F41G7/226 ,  F41G7/2293 ,  G01J1/0295 ,  G01J1/0488 ,  G01J1/44 ,  G01J2001/4238 ,  G01S7/484 ,  G01S7/4861 ,  G01S17/003

Abstract: A pulse repetition frequency detector, tracker, and decoder includes a two-dimensional InGaAs FPA of photodetectors configured to convert laser signals into electrical signals. A ROIC is operatively connected to the InGaAs FPA to condition electrical signals from the InGaAs FPA. A module is operatively connected to the ROIC to decode pulsed codes in the conditioned electrical signals and to provide output for tracking decoded laser spots in two-dimensional space. In another aspect, an imaging device includes an imager with an imaging FPA operatively connected to a first ROIC for imaging. A pulse repetition frequency detector, tracker, and decoder including a second ROIC as described above, is operatively connected to the first ROIC. The first and second ROICs are operatively connected to correlate the position of decoded laser spots in images from the imaging FPA.

Abstract translation: 脉冲重复频率检测器，跟踪器和解码器包括被配置为将激光信号转换成电信号的光电检测器的二维InGaAs FPA。 ROIC可操作地连接到InGaAs FPA以调节来自InGaAs FPA的电信号。 模块可操作地连接到ROIC以对经调节的电信号中的脉冲编码进行解码，并提供用于跟踪二维空间中的解码激光点的输出。 在另一方面，一种成像装置包括具有可操作地连接到第一ROIC用于成像的成像FPA的成像器。 包括如上所述的第二ROIC的脉冲重复频率检测器，跟踪器和解码器可操作地连接到第一ROIC。 第一和第二ROIC可操作地连接以将来自成像FPA的图像中的解码激光点的位置相关联。