公开(公告)号：US11495631B2

公开(公告)日：2022-11-08

申请号：US16785098

申请日：2020-02-07

Applicant: Sensors Unlimited, Inc.

Inventor： Wei Huang ,  Douglas Stewart Malchow ,  Michael J. Evans ,  John Liobe ,  Wei Zhang

IPC: H01L27/146

Abstract: A system includes a pixel including a diffusion layer in contact with an absorption layer. The diffusion layer and absorption layer are in contact with one another along an interface that is inside of a mesa. A trench is defined in the absorption layer surrounding the mesa. An overflow contact is seated in the trench.

公开(公告)号：US10539464B2

公开(公告)日：2020-01-21

申请号：US15890263

申请日：2018-02-06

Applicant: Sensors Unlimited, Inc.

Inventor： Joshua Lund ,  John Liobe

IPC: G01J3/28 ,  G01J3/02

Abstract: An imaging method includes assigning pixels within the extent of a focal plane array active area to a first readout range and a second readout range. Image data is read out from the pixels assigned to the first readout range and the second readout range. Pixels located within the extend of the focal plane array active area and not assigned to the first readout range or the second readout range are left unread. Imaging systems and hyperspectral imaging arrangements are also described.

公开(公告)号：US10516843B2

公开(公告)日：2019-12-24

申请号：US15895632

申请日：2018-02-13

Applicant: Sensors Unlimited, Inc.

Inventor： John Liobe ,  Joshua Lund

IPC: H04N5/374 ,  H04N5/3745 ,  H03M1/12 ,  H04N5/378 ,  H03H7/06

Abstract: A pixel of a pixel array is provided. The pixel includes a low frequency path configured to receive an input signal from a corresponding photodetector. The low frequency path includes a passive imaging circuit provided along the low frequency path, the passive imaging circuit configured to output an analog imaging signal and a flash analog to digital converter (ADC) that receives the analog imaging signal and processes the analog imaging signal to output a coarse digitized signal.

公开(公告)号：US10397504B2

公开(公告)日：2019-08-27

申请号：US15431179

申请日：2017-02-13

Applicant: Sensors Unlimited, Inc.

Inventor： John Liobe ,  Joshua Lund

IPC: H04N5/359 ,  H04N5/217

Abstract: A method of correcting lag in an imaging pixel includes receiving a current frame pixel value and determining a current filter coefficient using the current frame pixel value. A pixel output is determined from a product of the current frame pixel value and current frame filter coefficient. The product of a first prior frame pixel value and corresponding first prior frame filter coefficient is added to the pixel output to generate a corrected pixel output to more closely indicates incident illumination on the imaging pixel during an integration period from which the current frame pixel value was obtained.

公开(公告)号：US20190113623A1

公开(公告)日：2019-04-18

申请号：US15785069

申请日：2017-10-16

Applicant: Sensors Unlimited, Inc.

Inventor： John Liobe ,  Joshua Lund

IPC: G01S17/08 ,  G01S7/481

Abstract: A pixel output processing circuit of a focal plane array (FPA) having a plurality of laser range finding pixels (LRF) is provided. The respective LRF pixels output a high frequency analog signal in response to sensing a reflected laser pulse. The pixel output processing circuit includes a common net and a detection circuit. The common net is connected to a amplifying transistor of each of the LRF pixels for receiving analog signals output from the respective LRF pixels. The detection circuit is coupled to the common net and outputs a pulse flag in response to detecting that a high frequency analog signal has been received by the common net.

公开(公告)号：US20180227519A1

公开(公告)日：2018-08-09

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

CPC classification number: H04N5/3658 ,  H04N5/3742 ,  H04N5/378

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：US20220079447A1

公开(公告)日：2022-03-17

申请号：US17471991

申请日：2021-09-10

Applicant: Sensors Unlimited, Inc.

Inventor： Douglas Stewart Malchow ,  John Liobe ,  Thuc-Uyen Nguyen ,  Brendan Mc Granaghan Murphy

IPC: A61B5/00 ,  G06T7/73

Abstract: A method of medical imaging is provided. The method includes receiving pulsed light emissions from fluoroscopic material in a target field of a patient, wherein the target field was treated with fluoroscopic material that emitted the pulsed light emissions in response to a pulsed laser signal. The pulsed laser signal has a wavelength that was selected to excite the fluoroscopic material. The method further includes capturing a passive image of the target field and asynchronously detecting pulses of the pulsed light emissions. The method further includes determining pulse-source coordinates in the image, wherein the pulse-source coordinates correspond to a location of the fluoroscopic material that emitted the pulsed light emissions.

公开(公告)号：US20210288100A1

公开(公告)日：2021-09-16

申请号：US16814179

申请日：2020-03-10

Applicant: Sensors Unlimited, Inc.

Inventor： Wei Zhang ,  Douglas Stewart Malchow ,  John Liobe ,  Michael J. Evans ,  Wei Huang

IPC: H01L27/146 ,  H01L31/105 ,  H01L31/107 ,  H01L31/0224 ,  H01L31/0304 ,  H01L31/0216 ,  H01L31/02 ,  H01L31/18

Abstract: A system includes a pixel having a diffusion layer within a cap layer. The diffusion layer defines a front side and an illumination side opposite the front side with an absorption layer operatively connected to the illumination side as well as the diffusion and cap layers. A set of alternating oxide and nitride layers are deposited on the front side of the cap and diffusion layers.

公开(公告)号：US20190253656A1

公开(公告)日：2019-08-15

申请号：US15895632

申请日：2018-02-13

Applicant: Sensors Unlimited, Inc.

Inventor： John Liobe ,  Joshua Lund

IPC: H04N5/3745 ,  H03M1/12

Abstract: A pixel of a pixel array is provided. The pixel includes a low frequency path configured to receive an input signal from a corresponding photodetector. The low frequency path includes a passive imaging circuit provided along the low frequency path, the passive imaging circuit configured to output an analog imaging signal and a flash analog to digital converter (ADC) that receives the analog imaging signal and processes the analog imaging signal to output a coarse digitized signal.

公开(公告)号：US20190242750A1

公开(公告)日：2019-08-08

申请号：US15890263

申请日：2018-02-06

Applicant: Sensors Unlimited, Inc.

Inventor： Joshua Lund ,  John Liobe

IPC: G01J3/28 ,  G01J3/02

Abstract: An imaging method includes assigning pixels within the extent of a focal plane array active area to a first readout range and a second readout range. Image data is read out from the pixels assigned to the first readout range and the second readout range. Pixels located within the extend of the focal plane array active area and not assigned to the first readout range or the second readout range are left unread. Imaging systems and hyperspectral imaging arrangements are also described.