公开(公告)号：US20190212813A1

公开(公告)日：2019-07-11

申请号：US16101131

申请日：2018-08-10

Applicant: STMICROELECTRONICS, INC.

Inventor： Xiaoyong YANG ,  Rui XIAO

IPC: G06F3/01 ,  G02B27/01 ,  G02B27/00

CPC classification number: G06F3/012 ,  G02B27/0093 ,  G02B27/0172 ,  G02B2027/0138 ,  G02B2027/014

Abstract: The present disclosure is directed to a system and method of determining a movement of a user's head with a ranging sensor. The ranging sensor transmits a ranging signal that is reflected off of a user's shoulder and received back at the ranging sensor. The received ranging signal can be used to determine distance between the user's head and the user's shoulder or to determine the reflectivity of the user's shoulder. With the distance or the reflectivity, a processor can be used to determine movement of the user's head. Furthermore, a multiple zone ranging sensor or multiple ranging sensors can be used to detect the user's shoulder in different spatial zones.

公开(公告)号：US20170356981A1

公开(公告)日：2017-12-14

申请号：US15605611

申请日：2017-05-25

Applicant: STMICROELECTRONICS, INC.

Inventor： Xiaoyong YANG ,  Rui XIAO ,  Arnaud DELEULE

IPC: G01S7/484 ,  G01S7/486 ,  G01S17/10

CPC classification number: G01S7/484 ,  G01S7/4868 ,  G01S17/10

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.

公开(公告)号：US20210201517A1

公开(公告)日：2021-07-01

申请号：US16727792

申请日：2019-12-26

Applicant: STMicroelectronics, Inc.

Inventor： Xiaoyong YANG ,  Chang Myung RYU ,  James KATH ,  Rui XIAO

IPC: G06T7/521

Abstract: The present disclosure provides a device and method for depth sensing by utilizing the combination of a ranging sensor and an image sensor. The ranging sensor can accurately detect distance measurement from an object. The image sensor can take images with high resolution of the object. By combining each sensor data from the ranging sensor and the image sensor, accurate depth information with high resolution of the object may be obtained. A structured light having patterned shapes are used in conjunction with the ranging sensor to receive reflected patterned shapes of the object. These reflected patterned shapes are used to analyze distance measurements associated with the specific patterned shapes. These distance measurements from both the ranging sensor and the image sensor is aligned and combined to generate an accurate depth map with high resolution using a processor of an electronic device including the ranging sensor and the image sensor.

公开(公告)号：US20210033704A1

公开(公告)日：2021-02-04

申请号：US17064398

申请日：2020-10-06

Applicant: STMICROELECTRONICS, INC.

Inventor： Xiaoyong YANG ,  Rui XIAO ,  Arnaud DELEULE

IPC: G01S7/484 ,  G01S17/10 ,  G01S7/486

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.

公开(公告)号：US20190123075A1

公开(公告)日：2019-04-25

申请号：US15792556

申请日：2017-10-24

Applicant: STMicroelectronics, Inc. ,  STMICROELECTRONICS (ALPS) SAS

Inventor： Frederic MORESTIN ,  Alexandre BALMEFREZOL ,  Rui XIAO

IPC: H01L27/146 ,  H04N13/00 ,  H04N5/355 ,  H04N9/04

Abstract: The present disclosure is directed to an image sensor including a pixel array of both range pixels and color pixels. Each range pixel (or range pixel area) may be associated with multiple adjacent color pixels, with each side of the range pixel immediately adjacent to at least two color pixels. The association between the range pixels and the color pixels may be dynamically configurable. The readings of a range pixel(s) and the associated color pixels may be integrated together in the generation of a 3D image.