公开(公告)号：EP2456075A1

公开(公告)日：2012-05-23

申请号：EP10306271.7

申请日：2010-11-18

Applicant: STMicroelectronics (Grenoble 2) SAS ,  STMicroelectronics SA

Inventor： Simony, Laurent ,  Deschamps, Benoît ,  Cellier, Alexandre ,  Barbier, Frédéric

IPC: H03M1/50 ,  H03M1/58

CPC classification number: H03M1/58 ,  H03M1/201 ,  H03M1/56

Abstract: The invention concerns a method of analog to digital voltage conversion comprising: generating a quadratic signal based on the square of a time signal (t); generating a ramp signal (V RMP ) based on said quadratic signal; and converting an analog input voltage to a digital output value based on a time duration determined by a comparison of said analog input voltage with said ramp signal.

Abstract translation: 本发明涉及一种模数电压转换方法，包括：基于时间信号（t）的平方产生二次信号; 基于所述二次信号产生斜坡信号（V RMP）; 并且基于由所述模拟输入电压与所述斜坡信号的比较确定的持续时间，将模拟输入电压转换为数字输出值。

公开(公告)号：EP2472853A1

公开(公告)日：2012-07-04

申请号：EP11290002.2

申请日：2011-01-03

Applicant: STMicroelectronics (Grenoble 2) SAS ,  STMicroelectronics R&D Ltd

Inventor： Cellier, Alexandre ,  Deschamps, Benoit ,  Raynor, Jeffrey M.

IPC: H04N5/235 ,  G03B7/099 ,  G01J1/00

CPC classification number: H04N5/2351 ,  G01J1/4204 ,  G03B7/0997

Abstract: Embodiments of the invention relate to an imaging device (ID) comprising a fixed focused lens (LN), an image sensor (IS1) comprising a image matrix (M1) comprising a plurality of pixels arranged on a semiconductor substrate and supplying image data, and electronic means for reading the image matrix, wherein the image sensor also comprises at least two ambient light sensors (M2, M3) arranged on the semiconductor substrate (SM) on opposite sides of the image matrix, and configured to capture an ambient light intensity through the fixed lens, and the electronic means is also configured to read the two ambient light sensors and to supply ambient light data and the image data.

Abstract translation: 本发明的实施例涉及一种包括固定聚焦透镜（LN）的成像设备（ID），包括布置在半导体衬底上并提供图像数据的多个像素的图像矩阵（M1）的图像传感器（IS1），以及 用于读取图像矩阵的电子装置，其中所述图像传感器还包括布置在所述图像矩阵的相对侧上的所述半导体衬底（SM）上的至少两个环境光传感器（M2，M3），并且被配置为捕获环境光强度 固定透镜和电子装置也被配置为读取两个环境光传感器并且提供环境光数据和图像数据。