-
公开(公告)号：US10033155B2
公开(公告)日：2018-07-24
申请号：US15359706
申请日：2016-11-23
Inventor： Denise Lee , John Kevin Moore
Abstract: An embodiment circuit includes a diode having a first terminal coupled to a first reference voltage; a first controllable switch coupled between a second terminal of the diode and a second reference voltage; and a capacitive element having a first terminal coupled to the first reference voltage and a second terminal controllably coupled to the second terminal of the diode.
-
公开(公告)号：US20180145482A1
公开(公告)日：2018-05-24
申请号：US15359706
申请日：2016-11-23
Inventor： Denise Lee , John Kevin Moore
CPC classification number: H01S5/183 , H01S5/042 , H01S5/0427 , H01S5/06 , H01S5/06213 , H01S5/06226 , H01S5/06825
Abstract: An embodiment circuit includes a diode having a first terminal coupled to a first reference voltage; a first controllable switch coupled between a second terminal of the diode and a second reference voltage; and a capacitive element having a first terminal coupled to the first reference voltage and a second terminal controllably coupled to the second terminal of the diode.
-
公开(公告)号：US09838629B2
公开(公告)日：2017-12-05
申请号：US14731761
申请日：2015-06-05
Applicant: STMicroelectronics (Research & Development) Limited , The University Court of the University of Edinburgh
Inventor： Shatabda Saha , John Kevin Moore
IPC: H04N5/3745 , H04N5/369 , H01L27/146
CPC classification number: H04N5/3698 , H01L27/14641 , H04N5/37457
Abstract: A pixel array includes pixels arranged in columns. A pair of column lines is provided for each column of pixels. A current source circuit is coupled to each pair of column lines. The current source circuit provides current to the pair of column lines in a first mode of operation such that when one column line in a pair of column lines is being provided with a first current the other column line in the pair of column lines is being provided with a second current which is less than the first current.
-
公开(公告)号：US20170301816A1
公开(公告)日：2017-10-19
申请号：US15097376
申请日：2016-04-13
Inventor： John Kevin Moore
IPC: H01L31/107 , H01L27/144
CPC classification number: H01L31/107 , H01L27/1443
Abstract: An electronic device disclosed herein includes a single photon avalanche diode (SPAD) configured to detect an incoming photon and to generate a first pulse signal in response thereto. Pulse shaping circuitry is configured to generate a second pulse signal from the first pulse signal by high pass filtering the first pulse signal. The pulse shaping circuitry includes a transistor drain-source coupled between a first node and a reference node, and a capacitor coupling the first node to an anode of the SPAD.
-
公开(公告)号：US20160037105A1
公开(公告)日：2016-02-04
申请号：US14731761
申请日：2015-06-05
Applicant: STMicroelectronics (Research & Development) Limited , The University Court of the University of Edinburgh
Inventor： Shatabda Saha , John Kevin Moore
IPC: H04N5/369 , H01L27/146
CPC classification number: H04N5/3698 , H01L27/14641 , H04N5/37457
Abstract: A pixel array includes pixels arranged in columns. A pair of column lines is provided for each column of pixels. A current source circuit is coupled to each pair of column lines. The current source circuit provides current to the pair of column lines in a first mode of operation such that when one column line in a pair of column lines is being provided with a first current the other column line in the pair of column lines is being provided with a second current which is less than the first current.
Abstract translation: 像素阵列包括以列排列的像素。 为每列像素提供一列列线。 电流源电路耦合到每对列线。 电流源电路在第一操作模式中向一对列线提供电流，使得当一对列线中的一列被提供有第一电流时，正在提供该列列线中的另一列线 具有小于第一电流的第二电流。
-
Patent Agency Ranking
公开(公告)号：US12074242B2
公开(公告)日：2024-08-27
申请号：US17734738
申请日：2022-05-02
Inventor： Mohammed Al-Rawhani , Neale Dutton , John Kevin Moore , Bruce Rae , Elisa Lacombe
IPC: H01L31/107 , H01L27/146 , H04N25/705 , H04N25/75
CPC classification number: H01L31/107 , H01L27/14612 , H01L27/14643 , H04N25/705 , H04N25/75
Abstract: Disclosed herein is an array of pixels. Each pixel includes a single photon avalanche diode (SPAD) and a transistor circuit. The transistor circuit includes a clamp transistor configured to clamp an anode voltage of the SPAD to be no more than a threshold clamped anode voltage, and a quenching element in series with the clamp transistor and configured to quench the anode voltage of the SPAD when the SPAD is struck by an incoming photon. Readout circuitry is coupled to receive the clamped anode voltage from the transistor circuit and to generate a pixel output therefrom, the threshold clamped anode voltage being below a maximum voltage rating of transistors forming the readout circuitry.
-
公开(公告)号：US12055435B2
公开(公告)日：2024-08-06
申请号：US17987419
申请日：2022-11-15
Inventor： John Kevin Moore
IPC: G01J1/44
CPC classification number: G01J1/44 , G01J2001/442 , G01J2001/4466
Abstract: A sensing pixel includes a single photon avalanche diode (SPAD) coupled between a first node and a second node, with a clamp diode being coupled between a turn-off voltage node and the second node. A turn-off circuit includes a sense circuit configured to generate a feedback voltage based upon a voltage at the turn-off voltage node, a transistor having a first conduction terminal coupled to the turn-off voltage node, a second conduction terminal coupled to ground, and a control terminal, and an amplifier having a first input coupled to a reference voltage, a second input coupled to receive the feedback voltage, and an output coupled to the control terminal of the transistor. A readout circuit is coupled to the SPAD by a decoupling capacitor.
-
公开(公告)号：US11913831B2
公开(公告)日：2024-02-27
申请号：US17838745
申请日：2022-06-13
Inventor： Neale Dutton , John Kevin Moore
CPC classification number: G01J1/44 , G01J1/0271 , G01J1/0459 , H01L31/02016 , G01J2001/446 , G01J2001/4413
Abstract: An optical sensor includes at least one photodetector configured to be reverse biased at a voltage exceeding a breakdown voltage by an excess bias voltage. At least one control unit is configured to adjust the reverse bias of the at least one photodetector. A method of operating an optical sensor is also disclosed.
-
公开(公告)号：US20240028667A1
公开(公告)日：2024-01-25
申请号：US18466522
申请日：2023-09-13
Applicant: STMMicroelectronics (Grenoble 2) SAS , STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED
Inventor： John Kevin Moore , Sam Lee , Pascal Mellot , Donald Baxter , Stuart McLeod , Kenneth Dargan
IPC: G06F17/18 , G01S7/4863 , G06F11/07 , G01S17/10 , G01S7/4865 , G01S7/487 , G01S7/497
CPC classification number: G06F17/18 , G01S7/4863 , G06F11/0703 , G01S17/10 , G01S7/4865 , G01S7/4876 , G01S7/497 , G01S7/4813
Abstract: A method includes receiving a histogram output from a detector sensor, and calculating a median point of a pulse waveform within the histogram. The pulse waveform has an even probability distribution over at least one quantization step of the histogram around the median point. A corresponding apparatus can include a detector sensor and a co-processor coupled to the detector sensor.
-
公开(公告)号：US11604265B2
公开(公告)日：2023-03-14
申请号：US16696984
申请日：2019-11-26
Inventor： Caixin Zhuang , John Kevin Moore
IPC: G01S7/4865 , G01S17/89 , G01S17/10 , G01S7/4863
Abstract: In one embodiment, an imaging device includes a light-emitting device, a driving circuit, a return single-photon avalanche diode (SPAD) array and readout circuitry. The driving circuit generates a driving signal, and the light-emitting device generates an optical pulse based on the driving signal. The return SPAD array is configured to receive a first portion of the optical pulse that is reflected by an object in an image scene. The readout circuitry receives a signal indicative of the received first portion of the optical pulse, and a signal indicative of the driving signal, and determines a distance between the imaging device and the object based on a difference between a time of receiving the signal indicative of the received first portion of the optical pulse and a time of receiving the signal indicative of the driving signal.
-
-
-
-
-
-
-
-
-
Search Results
67
records
(took 0.018 seconds)
