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Patent Agency Ranking
公开(公告)号：US20230400904A1
公开(公告)日：2023-12-14
申请号：US17806813
申请日：2022-06-14
Applicant: STMicroelectronics, Inc. , STMICROELECTRONICS (BEIJING) R&D CO. LTD , STMicroelectronics (Grenoble 2) SAS
Inventor： Arnaud Deleule , Kalyan-Kumar Vadlamudi-Reddy , Darin K Winterton , Jihong Chen , Olivier Lemarchand
IPC: G06F1/3231 , G06F1/3234 , G01S13/08
CPC classification number: G06F1/3231 , G06F1/3265 , G01S13/08
Abstract: A method for operating an electronic device includes while a display is in low power mode, detecting based on data collected by a time of flight (ToF) sensor, a movable object within a field of view of the electronic device; in response to the detecting initiating a period of detection having a plurality of frames, the period of detection being a time period over which a distance value indicative of a distance between the movable object and the display is detected; for each of the plurality of frames, changing the distance value to reflect whether the movable object is moving near or further from the electronic device; detecting that the distance value after the period of detection is less than a threshold distance value indicative of the movable object approaching the display; if the distance value is less than the threshold distance value, waking up the display.
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公开(公告)号：US10594920B2
公开(公告)日：2020-03-17
申请号：US15624368
申请日：2017-06-15
Applicant: STMicroelectronics, Inc.
Inventor： Xiaoyong Yang , Darin K. Winterton , Arnaud Deleule
IPC: G01S17/48 , H04N5/232 , G01S17/10 , G01S7/4863 , G01S17/02
Abstract: A device includes a time-of-flight ranging sensor configured to transmit optical pulse signals and to receive return optical pulse signals. The time-of-flight ranging sensor processes the return optical pulse signals to sense distances to a plurality of objects and to generate a confidence value indicating whether one of the plurality of objects has a highly reflective surface. The time-of-flight sensor generates a range estimation signal including a plurality of sensed distances and the confidence value. The image capture device includes autofocusing circuitry coupled to the time-of-flight sensor to receive the range estimation signal and configured to control focusing based upon the sensed distances responsive to the confidence value indicating none of the plurality of objects has a highly reflective surface. The autofocusing circuitry controls focusing independent of the sensed distances responsive to the confidence value indicating one of the objects has a highly reflective surface.
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公开(公告)号：US20170366737A1
公开(公告)日：2017-12-21
申请号：US15624368
申请日：2017-06-15
Applicant: STMicroelectronics, Inc.
Inventor： Xiaoyong Yang , Darin K. Winterton , Arnaud Deleule
CPC classification number: H04N5/23212 , G01S7/4863 , G01S17/023 , G01S17/10
Abstract: A device includes a time-of-flight ranging sensor configured to transmit optical pulse signals and to receive return optical pulse signals. The time-of-flight ranging sensor processes the return optical pulse signals to sense distances to a plurality of objects and to generate a confidence value indicating whether one of the plurality of objects has a highly reflective surface. The time-of-flight sensor generates a range estimation signal including a plurality of sensed distances and the confidence value. The image capture device includes autofocusing circuitry coupled to the time-of-flight sensor to receive the range estimation signal and configured to control focusing based upon the sensed distances responsive to the confidence value indicating none of the plurality of objects has a highly reflective surface. The autofocusing circuitry controls focusing independent of the sensed distances responsive to the confidence value indicating one of the objects has a highly reflective surface.
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公开(公告)号：US12066881B2
公开(公告)日：2024-08-20
申请号：US17806813
申请日：2022-06-14
Applicant: STMicroelectronics, Inc. , STMICROELECTRONICS (BEIJING) R&D CO. LTD , STMicroelectronics (Grenoble 2) SAS
Inventor： Arnaud Deleule , Kalyan-Kumar Vadlamudi-Reddy , Darin K Winterton , Jihong Chen , Olivier Lemarchand
IPC: G06F1/32 , G01S13/08 , G06F1/3231 , G06F1/3234
CPC classification number: G06F1/3231 , G01S13/08 , G06F1/3265
Abstract: A method for operating an electronic device includes while a display is in low power mode, detecting based on data collected by a time of flight (ToF) sensor, a movable object within a field of view of the electronic device; in response to the detecting initiating a period of detection having a plurality of frames, the period of detection being a time period over which a distance value indicative of a distance between the movable object and the display is detected; for each of the plurality of frames, changing the distance value to reflect whether the movable object is moving near or further from the electronic device; detecting that the distance value after the period of detection is less than a threshold distance value indicative of the movable object approaching the display; if the distance value is less than the threshold distance value, waking up the display.
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公开(公告)号：US10823826B2
公开(公告)日：2020-11-03
申请号：US15605611
申请日：2017-05-25
Applicant: STMICROELECTRONICS, INC.
Inventor： Xiaoyong Yang , Rui Xiao , Arnaud Deleule
Abstract: A time of flight range detection device includes a laser configured to transmit an optical pulse into an image scene, a return single-photon avalanche diode (SPAD) array, a reference SPAD array, a range detection circuit coupled to the return SPAD array and the reference SPAD array, and a laser driver circuit. The range detection circuit in operation determines a distance to an object based on signals from the return SPAD array and the reference SPAD array. The laser driver circuit in operation varies an output power level of the laser in response to the determined distance to the object.
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