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公开(公告)号：US10901310B2
公开(公告)日：2021-01-26
申请号：US16253538
申请日：2019-01-22
Applicant: QUALCOMM Incorporated
Inventor： Jian Ma , Sergiu Goma
IPC: G03B21/20 , G02B27/09 , G02F1/1335 , G02B5/02 , G02B5/18
Abstract: Aspects of the present disclosure relate to a device for active depth sensing with an adjustable distribution of light projected. An example device includes a light projector. The light projector includes a light source configured to emit a light and a diffractive element. The diffractive element includes a first diffractive optical element having a first refractive index and configured to project a first distribution of light, a second diffractive optical element having a second refractive index and configured to project a second distribution of light based on a refractive material between the first diffractive optical element and the second diffractive optical element, and the refractive material located between the first diffractive optical element and the second optical element. The refractive material is adjustable to have a second refractive index for the first mode and a third refractive index for the second mode.
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公开(公告)号：US11563873B2
公开(公告)日：2023-01-24
申请号：US16848487
申请日：2020-04-14
Applicant: QUALCOMM Incorporated
Inventor： Jian Ma , Sergiu Goma , Biay-Cheng Hseih
Abstract: Aspects of the present disclosure relate to depth sensing using a device. An example device includes a first light projector configured to project light towards a second light projector configured to project light towards the first light projector. The example device includes a reflective component positioned between the first and second light projectors, the reflective component configured to redirect the light projected by the first light projector onto a first portion of a scene and to redirect the light projected by the second light projector onto a second portion of the scene, and the first and second portions of the scene being adjacent to one another and non-overlapping relative to one another. The example device includes a receiver configured to detect reflections of redirected light projected by the first and second light projectors.
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公开(公告)号：US10802382B2
公开(公告)日：2020-10-13
申请号：US16253784
申请日：2019-01-22
Applicant: QUALCOMM Incorporated
Inventor： Jian Ma , Sergiu Goma
IPC: G03B21/20 , G02B27/09 , G02F1/1335 , G02B5/02 , G02B5/18
Abstract: Aspects of the present disclosure relate to an adjustable light projector for active depth sensing and flood illumination. An example device includes a light projector that includes a light source to emit a light along a first direction and a diffractive element positioned in a path of the emitted light along the first direction. The diffractive element includes a diffractive optical element having a first refractive index and configured to project a distribution of focused light from the emitted light during a first mode. The diffractive element also includes a diffusion element having a second refractive index and configured to diffuse the emitted light during a second mode.
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公开(公告)号：US20180176542A1
公开(公告)日：2018-06-21
申请号：US15380745
申请日：2016-12-15
Applicant: QUALCOMM Incorporated
Inventor： Kalin Atanassov , Sergiu Goma , Stephen Michael Verrall
Abstract: Methods and systems disclosed provide improved depth sensing for an imaging device. In some aspects, a plurality of transmitters including a first transmitter are configured to generate a structured light pattern with a first depth of field at a first resolution and a second structured light pattern with a second depth of field at the first resolution, wherein the second depth of field is wider than the first depth of field. A receiver, such as an imaging sensor, is configured to focus within the first depth of field to receive the first structured light pattern and capture a first image representing the first structured light pattern and to focus within the second depth of field to receive the second structured light pattern and capture a second image representing the second structured light pattern. An electronic hardware processor is configured to generate a depth map of the scene based on the first image and the second image.
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公开(公告)号：US11297258B2
公开(公告)日：2022-04-05
申请号：US15141388
申请日：2016-04-28
Applicant: QUALCOMM Incorporated
Inventor： Sergiu Goma , Biay-Cheng Hseih
IPC: H04N5/235 , H04N5/3745 , H04N5/355 , H04N5/369 , H01L27/146 , H04N5/376 , H04N5/378
Abstract: A high dynamic range solid state image sensor and camera system are disclosed. In one aspect, the solid state image sensor includes a first wafer including an array of pixels, each of the pixels comprising a photosensor, and a second wafer including an array of readout circuits. Each of the readout circuits is configured to output a readout signal indicative of an amount of light received by a corresponding one of the pixels and each of the readout circuits includes a counter. Each of the counters is configured to increment in response to the corresponding photosensor receiving an amount of light that is greater than a photosensor threshold. Each of the readout circuits is configured to generate the readout signal based on a value stored in the corresponding counter and a remainder stored in the corresponding pixel.
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Patent Agency Ranking
公开(公告)号：US20210321021A1
公开(公告)日：2021-10-14
申请号：US16848487
申请日：2020-04-14
Applicant: QUALCOMM Incorporated
Inventor： Jian Ma , Sergiu Goma , Biay-Cheng Hseih
Abstract: Aspects of the present disclosure relate to depth sensing using a device. An example device includes a first light projector configured to project light towards a second light projector configured to project light towards the first light projector. The example device includes a reflective component positioned between the first and second light projectors, the reflective component configured to redirect the light projected by the first light projector onto a first portion of a scene and to redirect the light projected by the second light projector onto a second portion of the scene, and the first and second portions of the scene being adjacent to one another and non-overlapping relative to one another. The example device includes a receiver configured to detect reflections of redirected light projected by the first and second light projectors.
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公开(公告)号：US10732285B2
公开(公告)日：2020-08-04
申请号：US16143070
申请日：2018-09-26
Applicant: QUALCOMM Incorporated
Inventor： Kalin Atanassov , Sergiu Goma , James Nash
Abstract: Aspects of the present disclosure relate to systems and methods for structured light (SL) depth systems. A depth finding system includes one or more processors and a memory, coupled to the one or more processors, includes instructions that, when executed by the one or more processors, cause the system to capture a plurality of frames based on transmitted pulses of light, where each of the frames is captured by scanning a sensor array after a respective one of the pulses has been transmitted, and generate an image depicting reflections of the transmitted light by combining the plurality of frames, where each of the frames provides a different portion of the image.
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公开(公告)号：US10969668B2
公开(公告)日：2021-04-06
申请号：US16253648
申请日：2019-01-22
Applicant: QUALCOMM Incorporated
Inventor： Jian Ma , Sergiu Goma
IPC: G03B21/20 , G02B27/09 , G02F1/1335 , G02B5/02 , G02B5/18
Abstract: Aspects of the present disclosure relate to systems and methods for active depth sensing. An example device includes a light projector. The light projector includes a light source to emit light and a diffractive element. The diffractive element is configured to receive the emitted light that is polarized, project a first distribution of light when the received light has a first polarity, and project a second distribution of light when the received light has a second polarity.
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公开(公告)号：US10771768B2
公开(公告)日：2020-09-08
申请号：US15380745
申请日：2016-12-15
Applicant: QUALCOMM Incorporated
Inventor： Kalin Atanassov , Sergiu Goma , Stephen Michael Verrall
IPC: H04N13/271 , H04N5/907 , H04N13/254 , H04N13/296 , G06T7/521
Abstract: Methods and systems disclosed provide improved depth sensing for an imaging device. In some aspects, a plurality of transmitters including a first transmitter are configured to generate a structured light pattern with a first depth of field at a first resolution and a second structured light pattern with a second depth of field at the first resolution, wherein the second depth of field is wider than the first depth of field. A receiver, such as an imaging sensor, is configured to focus within the first depth of field to receive the first structured light pattern and capture a first image representing the first structured light pattern and to focus within the second depth of field to receive the second structured light pattern and capture a second image representing the second structured light pattern. An electronic hardware processor is configured to generate a depth map of the scene based on the first image and the second image.
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公开(公告)号：US11037966B2
公开(公告)日：2021-06-15
申请号：US15713217
申请日：2017-09-22
Applicant: QUALCOMM Incorporated
Inventor： Biay-Cheng Hseih , Todor Georgiev Georgiev , Jian Ma , Sergiu Goma
IPC: H01L27/146 , G01J1/04 , G01J3/02 , G01J1/16 , G01J3/36 , H01L31/02 , H04N5/374 , H01L31/0216
Abstract: Various embodiments are directed to an image sensor that includes a first sensor portion and a second sensor portion. The second sensor portion may be positioned relative to the first sensor portion such that the second sensor portion may initially detect light entering the image sensor, and some of that light passes through the second sensor portion and may be detected by the first sensor portion. In some embodiments, one more optical filters may be disposed within the image sensor. The one or more optical filters may include at least one of a dual bandpass filter disposed above the second photodetector or a narrow bandpass filter disposed between the first photodetector and the second photodetector.
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