发明名称 |
Methods of operating depth pixel included in three-dimensional image sensor and methods of operating three-dimensional image sensor |
摘要 |
In a method of operating a depth pixel included in a three-dimensional (3D) image sensor, a plurality of sampling values are obtained by sampling a reception light reflected by an object based on a transfer control signal having a first initial activation level. The depth pixel includes a photo detection region, a transfer gate and a floating diffusion region. The transfer control signal is applied to the transfer gate. A first final activation level of the transfer control signal is determined based on the plurality of sampling values and at least one reference value. A distance between the depth pixel and the object is calculated based on the reception light and the transfer control signal having the first final activation level. |
申请公布号 |
US9258502(B2) |
申请公布日期 |
2016.02.09 |
申请号 |
US201314105258 |
申请日期 |
2013.12.13 |
申请人 |
Samsung Electronics Co., Ltd. |
发明人 |
Lee Tae-Yon |
分类号 |
H04N5/3745;H04N5/369;G01S17/89;G01S7/486 |
主分类号 |
H04N5/3745 |
代理机构 |
Myers Bigel Sibley & Sajovec, P.A. |
代理人 |
Myers Bigel Sibley & Sajovec, P.A. |
主权项 |
1. A method of operating a depth pixel, comprising:
responsive to a transfer control signal having a first initial activation level being applied to a transfer gate in the depth pixel, obtaining a plurality of sampling values by sampling a reception light that is reflected by an object that is illuminated by transmission light, ones of the plurality of sampling values corresponding to an intensity of the reception light; determining a first final activation level of the transfer control signal based on the plurality of sampling values and at least one reference value; and calculating a distance between the depth pixel and the object based on the reception light and the transfer control signal having the first final activation level. |
地址 |
KR |