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公开(公告)号：US11778134B2
公开(公告)日：2023-10-03
申请号：US17183866
申请日：2021-02-24
Applicant: Teledyne DALSA B.V.
Inventor： Willem J. Kindt , Hui-Yu Chen
CPC classification number: H04N5/32 , G01R31/2829 , G01R31/52 , G01R31/54
Abstract: The present invention relates to a fault detection circuit for detecting one or more column faults in a pixel array of an image sensor. The present invention further relates to a readout circuit for reading out a column line of an image sensor, and to an image sensor comprising the same.
The fault detection circuit according to the invention comprises a signal unit for applying an electrical signal to a given column line of the pixel array, a determining unit for measuring a response to the applied electrical signal and for determining whether a fault exists for said given column line in dependence of the measured response, and a controller for controlling the signal unit and the determining unit, and for outputting a fault status for said given column line.-
公开(公告)号：US11195309B2
公开(公告)日：2021-12-07
申请号：US16475026
申请日：2016-11-25
Applicant: Teledyne Dalsa B.V. , Teledyne Digital Imaging, Inc.
Inventor： Yves Kessener , Andriy Lomako , Joseph Miller
IPC: G06T11/00
Abstract: The present invention relates to a method and a system for producing X-ray images from an object. According to this invention, a shift-and-add method is used for generating a stack of linear tomography planes each associated with a different area inside the object. A set of shift values is defined from the consideration of ensuring that said stack of linear tomography planes fills in the tomographic volume with a spatial density adequate to the application. If so required by the application, some focal planes can be selectively processed for sharpness reduction in some areas to control the depth-of-field. A focus stacking method is used to synthesize a single 2D X-ray image from UPI the tomographic stack of images. A depth map of in-focus areas from the linear tomography stack can be used for creating a 3D object model.
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公开(公告)号：US10931890B2
公开(公告)日：2021-02-23
申请号：US16421250
申请日：2019-05-23
Applicant: Teledyne DALSA B.V.
Inventor： Laurens Korthout , Vincent Arkesteijn
IPC: H04N5/32 , H01L27/142 , H04N5/341 , H04N5/3745
Abstract: The present invention relates to an image sensor system. The invention further relates to an X-ray imaging system comprising such an image sensor system. More in particular, the present invention is related to image sensor systems that use a relatively small pixel width.
The present invention proposes to group the pixel columns in a plurality of column groups, each column group comprising at least three columns of pixels. The binary counters corresponding to the columns in a column group are reset at the start of a conversion cycle such that at least three columns among the at least three columns in a column group are reset to a different initial value.-
公开(公告)号：US20210014432A1
公开(公告)日：2021-01-14
申请号：US16923146
申请日：2020-07-08
Applicant: Teledyne DALSA B.V.
Inventor： Willem J. Kindt , Alouisius W.M. Korthout
IPC: H04N5/32
Abstract: The present invention relates to an image sensor and to an imaging system comprising the same. The present invention particularly relates to X-ray image sensors and imaging systems.
The image sensor according to the invention comprises a pixel array that includes a plurality of active pixels arranged in a matrix of rows and columns, and a plurality of column lines to which outputs of pixels in the same column are coupled for the purpose of outputting pixel signals. The image sensor further comprises readout circuitry that includes a plurality of readout units, each readout unit being configured for reading out a respective column line through an input node of the readout unit.
The image sensor is characterized in that the image sensor further comprises capacitive units, such as capacitors, for capacitively coupling each input node to its corresponding column line.-
公开(公告)号：US10862391B2
公开(公告)日：2020-12-08
申请号：US16332937
申请日：2017-03-31
Applicant: TELEDYNE DALSA B.V.
Inventor： Simon M. Louwsma , Paul F. J. Geraedts
IPC: H03M1/10 , H02M3/07 , H03M1/38 , H04N5/3745
Abstract: The present invention relates to a converting device for converting an analog voltage into a digital number and to an imaging system comprising the same. The invention further relates to a method for converting an analog voltage into a digital number.According to the invention, one or more charge pumping steps are performed that change a voltage over a capacitive element that has been set in dependence of the voltage to be converted. During each charge pumping step, one or more substantially identical charge packets may be transferred to of from the capacitive element. The magnitude of the charge packets belonging to different charge pumping steps may be different allowing multi-slope operation.The digital number representing the analog voltage is calculated based on the net charge that has been injected into or removed from the main capacitive element as a result of having performed the one or more charge pumping steps.
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Patent Agency Ranking
公开(公告)号：US20190274644A1
公开(公告)日：2019-09-12
申请号：US16423450
申请日：2019-05-28
Inventor： Scott David Kravis , Leonid Khatutskiy , James Paul Frerichs , Adrian David French , Kyle Alan Pixton , Hein Loijens , Frank Polderdijk , Helmut Rosner
IPC: A61B6/14 , A61B6/00 , A61B5/01 , A61B5/00 , G01R31/44 , G06F1/3215 , G06F1/3234 , G06F3/00 , G06F3/03 , H02S40/44 , G01J3/28 , H04N5/32 , H04N5/232
Abstract: Methods and systems are described for operating an imaging sensor, the imaging sensor including a multi-dimensional sensor. An electronic processor receives an output from the multi-dimensional sensor and transitions the imaging sensor from the low-power state into a ready state in response to a determination by the electronic processor, based on the output from the multi-dimensional sensor, that a first state transition criteria is satisfied and transitions the imaging sensor from the ready state into an armed state in response to a determination that a second state transition criteria is satisfied. In some implementations, the electronic processor operates the imaging sensor to capture image data only when operating in the armed state and prevents the imaging system from transitioning from the low-power state directly into the armed state.
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公开(公告)号：US10185041B2
公开(公告)日：2019-01-22
申请号：US15526646
申请日：2015-02-05
Applicant: TELEDYNE DALSA B.V.
Inventor： Alexander Zyazin
Abstract: The radiation detector (10) comprises a scintillator (15) having a first refractive index (ns) for converting incident radiation (RR) received at a first side (S1) of the radiation detector (10) into converted radiation (CR), a photosensor (20) for receiving the converted radiation (CR) from the scintillator (15), and an optical coating layer (25) arranged between the scintillator (15) and the photosensor (20). The scintillator (15) has regions (RR) arranged for being imaged, when impinged by the incident radiation (RR), onto corresponding regions of the photosensor (20). The optical coating layer (25) has a second refractive index (no) lower than the first refractive index (ns) for reflecting the converted radiation (CR) resulting from the incident radiation (RR) impinged on a particular region (A1) of the scintillator (15) and received by a region (A3) of the optical coating layer (25) corresponding to a photosensor region different from the imaged one (A2).
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公开(公告)号：US20160216382A1
公开(公告)日：2016-07-28
申请号：US14913956
申请日：2013-08-26
Applicant: TELEDYNE DALSA B.V.
Inventor： Rudolph Maria SNOEREN
IPC: G01T1/20
CPC classification number: G01T1/2002 , G01T1/2018 , G01T1/202
Abstract: A radiation detector (10; 11; 12) used to detect incident radiation (RR) received at a first side (S1) of the radiation detector (10; 11; 12). The radiation detector (10; 11; 12) includes a scintillator (15) to convert the incident radiation (RR) into converted radiation (CR), a photosensor (20) arranged at a second side (S2) of the radiation detector (10) opposite to the first side (S1) to receive the converted radiation (CR) from the scintillator (15) and an interference optical filter (25) arranged between the scintillator (15) and the photosensor (20). Areas of the scintillator (15) on which the incident radiation (RR) impinges are intended to be imaged onto corresponding areas of the photosensor (20). The interference optical filter (25) is constructed to attenuate a portion of the converted radiation (CR) resulting from the incident radiation (RR) and impinging on a particular one (A1) of the areas of the scintillator (15) which is received via direct transmission through the interference optical filter (25) by another one (A3) of the areas of the photosensor (20) different from the one (A2) corresponding to the particular one (A1) of the areas of the scintillator (15). By using the interference optical filter (25), lateral optical crosstalk caused by the portion of converted radiation (CR) which laterally spread from the particular area (A1) of the scintillator (15) is reduced.
Abstract translation: 用于检测在所述辐射探测器（10; 11; 12）的第一侧（S1）接收的入射辐射（RF）的辐射探测器（10; 11; 12）。 辐射检测器（10; 11; 12）包括将入射辐射（RR）转换为转换辐射（CR）的闪烁体（15），布置在辐射检测器（10）的第二侧（S2）的光电传感器 ）与第一侧（S1）相对以接收来自闪烁体（15）的转换辐射（CR）和布置在闪烁体（15）和光电传感器（20）之间的干涉滤光器（25）。 入射辐射（RR）入射的闪烁体（15）的区域意图被成像到光电传感器（20）的相应区域上。 干涉光学滤波器（25）被构造为衰减由入射辐射（RR）产生的转换的辐射（CR）的一部分并且撞击闪烁体（15）的特定的一个（A1） 通过光电传感器（20）的不同于与闪烁体（15）的区域的特定一个（A1）不同的一个（A2）的区域中的另一个（A3）通过干涉滤光器（25）直接传输。 通过使用干涉滤光器（25），由从闪烁体（15）的特定区域（A1）侧向扩展的转换辐射部分（CR）引起的横向光学串扰减小。
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公开(公告)号：US20250035797A1
公开(公告)日：2025-01-30
申请号：US18359654
申请日：2023-07-26
Applicant: Teledyne Dalsa B.V.
Inventor： Jonathan Edvard Snyder , James Joseph Miller , Andriy A. Lomako
IPC: G01T1/20
Abstract: An X-ray imaging system and a method thereof are provided. In one or more embodiments, the imaging system includes an X-ray detector having neuromorphic X-ray pixels that can be combined with integrating pixels in a single hybrid detector package. The X-ray detector may generate two types of datasets (e.g., output data streams), one of integrating keyframes, the other an asynchronous event stream of intensity changes. In one or more embodiments, the method may include detecting X-rays from an imageable event using the X-ray detector, generating the two types of datasets based on the detected X-rays, and reconstructing one or more images of the imageable event based on the two types of generated datasets. By utilizing artificial intelligence/machine learning, these datasets may be combined to generate novel x-ray imaging modes that include deblurred high dynamic range real-time frame sequences or a high-speed, high dynamic range frame sequence for subsequent viewing.
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公开(公告)号：US20230393291A1
公开(公告)日：2023-12-07
申请号：US18323965
申请日：2023-05-25
Applicant: Teledyne Dalsa B.V.
Abstract: Aspects of the present disclosure relate to a photon counting detector and to a read-out integrated circuit to be used in such detector. Aspects of the present disclosure particularly relate to X-ray applications.
According to an aspect of the present disclosure, the detector comprises an electrical ground plane arranged at or near an interface between the carrier and at least one ROIC die. Each ROIC die comprises an extension region that laterally extends beyond the photon conversion assembly, wherein peripheral circuitry for a given ROIC die is arranged in the extension region of that ROIC die. The detector comprises at least one electrical connection that connects the power supply line that is arranged on the carrier to the peripheral circuitry of the at least one ROIC die.
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