公开(公告)号：US20190199986A1

公开(公告)日：2019-06-27

申请号：US16032634

申请日：2018-07-11

Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics Ltd

Inventor： Massimo RATTI ,  Naomi PETRUSHEVSKY ,  Eli YASER ,  Yotam NACHIMIAS

IPC: H04N9/31 ,  G06T1/20

CPC classification number: H04N9/3182 ,  G06T1/20 ,  H04N9/3135

Abstract: A light projection system includes a light module emitting a light beam and a movable mirror reflecting the light beam toward a surface. A graphics processing unit processes video data to compensate for a response of the light module. The response is an optical power of the light beam produced by the light module for a given forward current through the light module. A light source driver controls the light module as a function of the processed video data. Colors of the images from the video data produced on the surface by the light beam would otherwise not look as they are intended to look due to changing of the response of the light module, but the processing of the video data alters the video data such that the colors of the images from the video data produced on the surface look as they are intended to look.

公开(公告)号：US10324283B2

公开(公告)日：2019-06-18

申请号：US15723529

申请日：2017-10-03

Applicant: STMicroelectronics Ltd

Inventor： Offir Duvdevany

IPC: G02B26/08 ,  G02B26/10 ,  G01D5/24 ,  G01D5/243

Abstract: A device disclosed herein includes a feedback measuring circuit to measure a signal flowing through a movable MEMS mirror. Processing circuitry determines a time at which the signal indicates that a capacitance of the movable MEMS mirror is substantially at a maximum capacitance. The processing circuitry also determines, over a window of time extending from the time at which the signal indicates that the capacitance of the movable MEMS mirror is substantially at the maximum to a given time, a total change in capacitance of the movable MEMS mirror compared to the maximum capacitance. The processor further determines the capacitance at the given time as a function of the total change in capacitance, and determines an opening angle of the movable MEMS mirror as a function of the capacitance at the given time.

公开(公告)号：US10261312B2

公开(公告)日：2019-04-16

申请号：US15589542

申请日：2017-05-08

Applicant: STMicroelectronics Ltd

Inventor： Elik Haran

IPC: G02B26/08 ,  G02B26/10 ,  B81B7/00

Abstract: An electronic device disclosed herein includes a mirror controller configured to generate a drive control signal, with a drive circuit configured to generate a drive signal for a movable mirror based upon the drive control signal. A sensing circuit is configured to sense the drive signal. The mirror controller is further configured to adjust the drive control signal as a function of the sensed drive signal.

公开(公告)号：US20180129036A1

公开(公告)日：2018-05-10

申请号：US15348087

申请日：2016-11-10

Applicant: STMicroelectronics Ltd

Inventor： Elik Haran ,  Gilad Adler

IPC: G02B26/08 ,  G02B26/10 ,  B81B3/00 ,  G01R31/28

CPC classification number: G02B26/085 ,  B81B3/0059 ,  B81B2201/042 ,  G01R31/2829 ,  G01R31/44 ,  G02B26/105

Abstract: Disclosed herein is a circuit for determining failure of a movable MEMS mirror. The circuit includes a mirror position sensor associated with the movable MEMS mirror and that generates an analog output as a function of angular position of the movable MEMS mirror. An analog to digital converter converts the analog output from the mirror position sensor to a digital mirror sense signal. Failure detection circuitry calculates a difference between the digital mirror sense signal at a first instant in time and the digital mirror sense signal at a second instant in time, determines whether the difference exceeds a threshold, and indicates failure of the movable MEMS mirror as a function of the difference failing to exceed the threshold.

公开(公告)号：US09810902B1

公开(公告)日：2017-11-07

申请号：US15192718

申请日：2016-06-24

Applicant: STMicroelectronics Ltd

Inventor： Offir Duvdevany

IPC: G02B26/08 ,  G02B26/10 ,  G01D5/24

CPC classification number: G02B26/0833 ,  G01D5/24 ,  G01D5/243 ,  G02B26/105

Abstract: A device disclosed herein includes a feedback measuring circuit to measure a signal flowing through a movable MEMS mirror. Processing circuitry determines a time at which the signal indicates that a capacitance of the movable MEMS mirror is substantially at a maximum capacitance. The processing circuitry also determines, over a window of time extending from the time at which the signal indicates that the capacitance of the movable MEMS mirror is substantially at the maximum to a given time, a total change in capacitance of the movable MEMS mirror compared to the maximum capacitance. The processor further determines the capacitance at the given time as a function of the total change in capacitance, and determines an opening angle of the movable MEMS mirror as a function of the capacitance at the given time.

公开(公告)号：US20170307873A1

公开(公告)日：2017-10-26

申请号：US15645259

申请日：2017-07-10

Applicant: STMicroelectronics Ltd

Inventor： Mark Kolodkin

IPC: G02B26/08

CPC classification number: G02B26/0841 ,  G02B26/085

Abstract: A device described herein includes a movable MEMS mirror, with a driver configured to drive the movable MEMS mirror with a periodic signal such that the MEMS mirror oscillates at its resonance frequency. A feedback measuring circuit is configured to measure a signal flowing through the movable MEMS mirror. A processor is configured to sample the signal at first and second instants, generate an error signal as a function of a difference between the signal at the first instant in time and the signal at the second instant in time, and determine the opening angle of the movable MEMS mirror as a function of the error signal.

公开(公告)号：US20140295931A1

公开(公告)日：2014-10-02

申请号：US13852478

申请日：2013-03-28

Applicant: STMicroelectronics Ltd. ,  STMicroelectronics Asia Pacific Pte Ltd.

Inventor： Chee Yu Ng ,  Jo Wang ,  Ravi Bhatia

IPC: G06F3/0488 ,  A63F13/20 ,  G06F3/044 ,  G06F3/0481 ,  G06F3/0482

CPC classification number: G06F3/0488 ,  A63F13/20 ,  A63F13/2145 ,  A63F13/42 ,  G06F3/044

Abstract: A touch controller is coupled to a touch screen and detects a first gesture at a first point on the touch screen. The first gesture includes physical contact of the touch screen by a user device at the first point. The touch controller detects a second gesture that is associated with movement of the user device from the first point to a second point on the touch screen. The second gesture includes detecting movement of the user device within a sensing range from the first point to the second point. The sensing range corresponds to an orthogonal distance from a surface of the touch screen. The touch controller detects a third gesture at the second touch point. The third gesture includes physical contact of the touch screen at the second touch point. Upon detecting the first, second and third gestures the touch controller performs a corresponding action.

Abstract translation: 触摸控制器耦合到触摸屏并且在触摸屏上的第一点检测第一手势。 第一姿态包括用户设备在第一点处的触摸屏的物理接触。 触摸控制器检测与用户设备从第一点移动到触摸屏上的第二点相关联的第二手势。 第二手势包括在从第一点到第二点的感测范围内检测用户设备的移动。 感测范围对应于从触摸屏的表面的正交距离。 触摸控制器在第二触摸点检测第三手势。 第三手势包括触摸屏在第二触摸点处的物理接触。 当检测到第一，第二和第三手势时，触摸控制器执行相应的动作。

公开(公告)号：US20040227109A1

公开(公告)日：2004-11-18

申请号：US10820464

申请日：2004-04-08

Applicant: STMicroelectronics Ltd.

Inventor： Graeme Storm ,  Jonathan Ephriam David Hurwitz

IPC: H01L027/00

CPC classification number: H04N5/335 ,  H04N5/361

Abstract: An image sensor includes an array of pixels, with each pixel including a photodiode, and a first output circuit for deriving a linear output signal by applying a reset signal to the photodiode and reading a voltage on the photodiode after an integration time. A second output circuit derives a logarithmic output signal by reading a near instantaneous illumination-dependent voltage on the photodiode that is a logarithmic function of the illumination. In the logarithmic mode, the pixels are calibrated to remove fixed pattern noise. The pixels may be operated in linear and log modes sequentially, with the linear output being selected for low light signals and the log output being selected for high light signals.

Abstract translation: 图像传感器包括像素阵列，每个像素包括光电二极管，以及第一输出电路，用于通过将复位信号施加到光电二极管并在积分时间之后读取光电二极管上的电压来导出线性输出信号。 第二输出电路通过读取作为照明的对数函数的光电二极管上的近瞬时照明相关电压来导出对数输出信号。 在对数模式下，校准像素以去除固定模式噪声。 像素可以顺序地以线性和对数模式操作，对于低光信号选择线性输出，并且对于高光信号选择对数输出。

公开(公告)号：US20040217359A1

公开(公告)日：2004-11-04

申请号：US10786878

申请日：2004-02-25

Applicant: STMicroelectronics Ltd

Inventor： Jeffrey Raynor

IPC: H01L027/15

CPC classification number: H01L27/1443 ,  H01L27/14609

Abstract: A CMOS image sensing structure includes a photodiode, in which an epitaxial layer is on a P-type substrate. The photodiode includes an N-well collection node in the epitaxial layer. An isolation trench is provided around the collection node to provide better control of the width of the collection node. The collection node can be surrounded by P-wells or by epitaxial material. It can also be surrounded by epitaxial material with the isolation trench being outwardly extended to ensure compliance with existing design rules.

Abstract translation: CMOS图像感测结构包括其中外延层在P型衬底上的光电二极管。 光电二极管包括外延层中的N阱收集节点。 在收集节点周围设置隔离沟槽，以便更好地控制收集节点的宽度。 采集节点可以被P阱或外延材料包围。 它也可以被外延材料包围，隔离槽向外延伸以确保符合现有的设计规则。

公开(公告)号：US20020114526A1

公开(公告)日：2002-08-22

申请号：US10072460

申请日：2002-02-07

Applicant: STMicroelectronics Ltd.

Inventor： Carl Dennis

IPC: G06K009/00 ,  G06K009/36 ,  G06K009/46

CPC classification number: H01L27/14621 ,  H01L27/14627

Abstract: Data is encoded in a solid state image sensor that includes a sensor pixel array by varying the color processing applied to at least some of the border pixels of the sensor pixel array. Data may be encoded in the color processing by varying the pattern of a color filter mosaic and by varying a pattern of a microlens array in accordance with a predetermined scheme. This scheme includes omission of color filter material and omission of the microlens array from selected pixels. The data, typically encoded in a binary format, is read by illuminating the sensor pixel array and by processing the output signals from the border pixels. The encoded data may include color process codes, mask revision codes and product codes.

Abstract translation: 通过改变应用于传感器像素阵列的至少一些边界像素的颜色处理，数据被编码在包括传感器像素阵列的固态图像传感器中。 可以通过改变滤色器马赛克的图案并根据预定方案改变微透镜阵列的图案，在颜色处理中对数据进行编码。 该方案包括省略滤色器材料并从所选像素中省略微透镜阵列。 通常通过照亮传感器像素阵列并且通过处理来自边界像素的输出信号来读取通常以二进制格式编码的数据。 编码数据可以包括颜色处理代码，掩码修改代码和产品代码。