公开(公告)号：WO2006051331A1

公开(公告)日：2006-05-18

申请号：PCT/GB2005/004386

申请日：2005-11-14

Applicant: STMICROELECTRONICS (RESEARCH AND DEVELOPMENT) LIMITED ,  MORETON, Michael, John, Vidion

Inventor： MORETON, Michael, John, Vidion

IPC: H04L12/28

CPC classification number: H04W36/24 ,  H04W36/14 ,  H04W80/02

Abstract: There is disclosed a method of helping mobile stations such as voice over IP devices to roam between wireless access points, by each access point transmitting the MAC address of a spanning tree algorithm root switch of the local network domain. This MAC address is used by mobile stations to detect if two access points are in a common network domain.

Abstract translation: 公开了通过传输本地网络域的生成树算法根交换机的MAC地址的每个接入点来帮助诸如IP设备之类的移动站在无线接入点之间漫游的方法。 移动台使用该MAC地址来检测两个接入点是否处于公共网络域。

公开(公告)号：US20210325243A1

公开(公告)日：2021-10-21

申请号：US17362548

申请日：2021-06-29

Applicant: STMicroelectronics (Research and Development) Limited ,  STMicroelectronics (Grenoble 2) SAS

Inventor： Jeffrey M. RAYNOR ,  Sophie TAUPIN ,  Jean-Jacques ROUGER ,  Pascal MELLOT

IPC: G01J1/42 ,  G01J1/44 ,  H01L23/58 ,  H01L27/144 ,  H01L31/02

Abstract: An optical sensor includes pixels. Each pixel has a photodetector. A readout circuit performs a process over an exposure time where the photodetector is connected to a reverse bias voltage supply to reset a voltage across the photodetector, and the photodetector is disconnected from the reverse bias voltage supply until that the voltage across the photodetector decreases in response to received ambient light. An ambient light level is then determine an based on a number of times the voltage across the photodetector is reset over the exposure time.

公开(公告)号：US11796386B2

公开(公告)日：2023-10-24

申请号：US17362548

申请日：2021-06-29

Applicant: STMicroelectronics (Research and Development) Limited ,  STMicroelectronics (Grenoble 2) SAS

Inventor： Jeffrey M. Raynor ,  Sophie Taupin ,  Jean-Jacques Rouger ,  Pascal Mellot

IPC: G01J1/42 ,  G01J1/44 ,  H01L23/58 ,  H01L27/144 ,  H01L31/02

CPC classification number: G01J1/4204 ,  G01J1/44 ,  H01L23/585 ,  H01L27/1443 ,  H01L27/1446 ,  H01L31/02019 ,  G01J2001/446 ,  G01J2001/448

Abstract: An optical sensor includes pixels. Each pixel has a photodetector. A readout circuit performs a process over an exposure time where the photodetector is connected to a reverse bias voltage supply to reset a voltage across the photodetector, and the photodetector is disconnected from the reverse bias voltage supply until that the voltage across the photodetector decreases in response to received ambient light. An ambient light level is then determine an based on a number of times the voltage across the photodetector is reset over the exposure time.

公开(公告)号：US09160957B2

公开(公告)日：2015-10-13

申请号：US13937311

申请日：2013-07-09

Applicant: STMICROELECTRONICS (RESEARCH AND DEVELOPMENT) LIMITED

Inventor： Justin Richardson ,  Keith Findlater

IPC: H04N5/378 ,  H04N5/335 ,  H04N5/367 ,  H01L27/146

CPC classification number: H04N5/378 ,  H01L27/14601 ,  H04N5/335 ,  H04N5/367

Abstract: An image sensor IC may have a non-volatile memory for several functions. The functions may include storing control parameters for a camera autofocus module, part tracking data, and data for defect correction or color science. The non-volatile memory can in particular be an antifuse non-volatile memory, which may not need special light shielding.

Abstract translation: 图像传感器IC可以具有用于若干功能的非易失性存储器。 功能可以包括存储用于相机自动对焦模块的控制参数，零件跟踪数据以及用于缺陷校正或色彩科学的数据。 非易失性存储器特别可以是反熔丝非易失性存储器，其可能不需要特殊的光屏蔽。