公开(公告)号：US20160291138A1

公开(公告)日：2016-10-06

申请号：US14927717

申请日：2015-10-30

Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS

Inventor： Marc DRADER ,  Pascal MELLOT

IPC: G01S7/486 ,  G01S17/08

CPC classification number: G01S7/4865 ,  G01S7/4863 ,  G01S13/227 ,  G01S17/08 ,  G01S17/10

Abstract: A method is for estimating a distance to an object. The method may include determining, by a ranging device, a first range value based upon a time of flight of first optical pulses having a period of a first duration, and determining, by the ranging device, a second range value based upon a time of flight of second optical pulses having a period of a second duration different from the first duration. The method may include estimating the distance based upon the first and second range values.

Abstract translation: 一种用于估计到物体的距离的方法。 该方法可以包括由测距设备基于具有第一持续时间的周期的第一光学脉冲的飞行时间确定第一范围值，并且由测距设备基于时间来确定第二范围值 具有与第一持续时间不同的第二持续时间的第二光脉冲的飞行。 该方法可以包括基于第一和第二范围值估计距离。

公开(公告)号：US20160284743A1

公开(公告)日：2016-09-29

申请号：US14926454

申请日：2015-10-29

Applicant: STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED ,  STMICROELECTRONICS (GRENOBLE 2) SAS

Inventor： Pascal MELLOT ,  Stuart MCLEOD ,  Bruce RAE ,  Marc DRADER

IPC: H01L27/144 ,  H01L31/107

CPC classification number: H01L27/1443 ,  G01S7/4863 ,  G01S7/4865 ,  G01S7/497 ,  H01L27/1446 ,  H01L27/14623 ,  H01L27/14818 ,  H01L31/02164 ,  H01L31/107

Abstract: A circuit may include an array of single photon avalanche diode (SPAD) cells, each SPAD cell configured to be selectively enabled by an activation signal. The circuit may include a control circuit configured to selectively enable a subset of the array of SPAD cells based on a measured count rate of the array of SPAD cells.

Abstract translation: 电路可以包括单光子雪崩二极管（SPAD）单元的阵列，每个SPAD单元被配置为通过激活信号选择性地使能。 电路可以包括控制电路，其被配置为基于SPAD单元阵列的测量计数速率来选择性地启用SPAD阵列的子集的子集。

公开(公告)号：US20150144767A1

公开(公告)日：2015-05-28

申请号：US14554134

申请日：2014-11-26

Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS

Inventor： Marc DRADER ,  Jeremie TEYSSIER TEYSSIER

IPC: G01S17/02 ,  G01S17/06

CPC classification number: G01S17/026 ,  G01S7/4866 ,  G01S7/497 ,  G01S17/06 ,  G01S17/08 ,  G01S17/88 ,  G01S2007/4975 ,  G06F3/017 ,  G06F3/0304

Abstract: A method is for evaluating a coverage factor of a photon emission cone of a time of flight sensor. The method may include the steps of assigning a reference curve to the sensory providing a photon flux intensity as a function of time of flight; and acquiring a time of flight and a corresponding flux intensity with the sensor. The method may also include reading the intensity provided by the reference curve for the acquired time of flight, and providing an indication of the coverage factor based on the ratio between the acquired intensity and the read intensity.

Abstract translation: 一种用于评估飞行时间传感器的光子发射锥的覆盖因子的方法。 该方法可以包括以下步骤：将参考曲线分配给提供作为飞行时间的函数的光子通量强度的感官; 并用传感器获取飞行时间和相应的磁通强度。 该方法还可以包括读取由参考曲线提供的获取的飞行时间的强度，并且基于所获取的强度与读取强度之间的比率来提供覆盖因子的指示。