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：US20160047904A1

公开(公告)日：2016-02-18

申请号：US14735548

申请日：2015-06-10

Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS

Inventor： Pascal MELLOT

IPC: G01S7/486 ,  G01S17/10

CPC classification number: G01S7/4865 ,  G01S7/484 ,  G01S7/4868 ,  G01S13/225 ,  G01S17/10

Abstract: A method of measuring the phase of a response signal relative to a periodic excitation signal, comprises the steps of producing for each cycle of the response signal two transitions synchronized to a clock and framing a reference point of the cycle; swapping the two transitions to confront them in turns to the cycles of the response signal; measuring the offsets of the confronted transitions relative to the respective reference points of the cycles; performing a delta-sigma modulation of the swapping rate of the two transitions based on the successive offsets; and producing a phase measurement based on the duty cycle of the swapping rate.

Abstract translation: 一种测量响应信号相对于周期性激励信号的相位的方法包括以下步骤：响应信号的每个周期产生与时钟同步的两个转换并对该周期的参考点进行成帧; 交换两个转换，以便将它们与响应信号的周期相反; 测量相对于循环的相应参考点的面对转变的偏移; 基于所述连续的偏移来执行所述两个转换的交换速率的Δ-Σ调制; 并基于交换速率的占空比产生相位测量。