公开(公告)号：US11483506B2

公开(公告)日：2022-10-25

申请号：US16424779

申请日：2019-05-29

Applicant: Raytheon Company

Inventor： Neil R. Malone ,  Michael J. Batinica

IPC: H04N5/378 ,  H04N5/3745

Abstract: An imaging device includes an image detector that includes an array of digital pixels, each digital pixel including an output that provides a digital pixel output pulse each time a charge stored in the digital pixel exceeds a threshold and a readout integrated circuit (ROIC) connected to the output of each of the digital pixels to receive the digital pixel output pulse from each pixel, the ROIC including a plurality of accumulators, each of the plurality of accumulators associated with a respective digital pixel. The imaging device also includes a controller that reads the accumulators to determine a number of digital pixel output pulses stored by the accumulators without stopping the generation of digital pixel output pulses.

公开(公告)号：US20200382733A1

公开(公告)日：2020-12-03

申请号：US16427968

申请日：2019-05-31

Applicant: RAYTHEON COMPANY

Inventor： Michael J. Batinica ,  Elina R. Glaretas ,  Micky Harris

IPC: H04N5/378 ,  H04N5/353

Abstract: A digital pixel circuit includes a unit cell configured to accumulate an electrical charge during a frame. The electrical charge is proportional to a light intensity of a light signal that is detected at a location in a field of view of the unit cell. An image processing unit is in signal communication with the unit cell. The image processing unit is configured to determine a total charge based on a plurality of accumulated charges over a plurality of sequential frames, and to determine an indication of the light intensity of light at the location based on the total charge. The unit cell is configured to operate in a first mode to accumulate the electrical charges over the plurality of sequential frames, and a second mode to perform a calibration operation that calibrates the unit cell based on the electrical charge accumulated during a single frame among the plurality of frames.

公开(公告)号：US10012533B2

公开(公告)日：2018-07-03

申请号：US14996936

申请日：2016-01-15

Applicant: Raytheon Company

Inventor： Richard H. Wyles ,  Michael J. Batinica

IPC: G01J1/44

CPC classification number: G01J1/44 ,  F41G7/226 ,  F41G7/2293 ,  G01S3/781 ,  G01S3/784 ,  G01S3/786 ,  G01S7/4863 ,  G01S7/4873

Abstract: A circuit for readout from for readout from a focal plane array having a number of pixels, includes, for each one pixel, an adaptive photodetector load circuit coupled to a detector for the one pixel, a trans-impedance amplifier, the detector being AC coupled to the trans-impedance amplifier, a comparator component, receiving an AC coupled output of the trans-impedance amplifier and comparing the AC coupled output to a predetermined threshold, a sample and hold ring comprising a number charge storage components connected in parallel, each one charge storage component comprising a capacitor in series with an enabling three point switching component and a pulse detection logic circuit receiving an output of the comparator component.

公开(公告)号：US09791554B2

公开(公告)日：2017-10-17

申请号：US14660285

申请日：2015-03-17

Applicant: Raytheon Company

Inventor： Gerald P. Uyeno ,  Sean D. Keller ,  Michael J. Batinica

IPC: G01C3/08 ,  G01S7/481 ,  G01S17/48 ,  G01S17/32

CPC classification number: G01S7/4814 ,  G01S7/4813 ,  G01S7/4815 ,  G01S17/32 ,  G01S17/48

Abstract: A multiple-beam triangulation-based range finder can direct multiple beams onto a sample from different orientations. The range finder can use a quadrant detector to detect light from the multiple beams that is reflected from the sample. The range finder generates a trigger signal when the target is a specified distance from the range finder. In some examples, two or more of the multiple beams are directed onto the sample simultaneously, where the beams are modulated at different frequencies and the signals from the quadrant detector are analyzed at the respective frequencies. In some examples, two or more of the multiple beams are directed onto the sample in succession, where the signals from the quadrant detector are analyzed in respective time windows. Using multiple beams with the quadrant detector can increase robustness against relative tilt of the sample with respect to the range finder.

公开(公告)号：US20160274219A1

公开(公告)日：2016-09-22

申请号：US14660285

申请日：2015-03-17

Applicant: Raytheon Company

Inventor： Gerald P. Uyeno ,  Sean D. Keller ,  Michael J. Batinica

IPC: G01S7/481 ,  G01S17/32

CPC classification number: G01S7/4814 ,  G01S7/4813 ,  G01S7/4815 ,  G01S17/32 ,  G01S17/48

Abstract: A multiple-beam triangulation-based range finder can direct multiple beams onto a sample from different orientations. The range finder can use a quadrant detector to detect light from the multiple beams that is reflected from the sample. The range finder generates a trigger signal when the target is a specified distance from the range finder. In some examples, two or more of the multiple beams are directed onto the sample simultaneously, where the beams are modulated at different frequencies and the signals from the quadrant detector are analyzed at the respective frequencies. In some examples, two or more of the multiple beams are directed onto the sample in succession, where the signals from the quadrant detector are analyzed in respective time windows. Using multiple beams with the quadrant detector can increase robustness against relative tilt of the sample with respect to the range finder.

Abstract translation: 基于多光束三角测量的测距仪可以将多个光束从不同的方向引导到样品上。 测距仪可以使用象限检测器来检测来自样品反射的多个光束的光。 当目标距离测距仪的指定距离时，测距仪产生一个触发信号。 在一些示例中，多个波束中的两个或更多个同时被引导到样本上，其中波束以不同的频率被调制，并且来自象限检测器的信号以相应的频率被分析。 在一些示例中，多个光束中的两个或更多个被连续地引导到样本上，其中来自象限检测器的信号在相应的时间窗口中被分析。 与象限检测器一起使用多个光束可以提高针对样品相对于测距仪的相对倾斜的鲁棒性。