Light source response compensation for light projection system using a graphics processing unit

    公开(公告)号:US10469813B2

    公开(公告)日:2019-11-05

    申请号:US16032634

    申请日:2018-07-11

    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.

    SYNCHRONIZATION OF LASER SCANNING PROJECTOR TO VIDEO SOURCES TO MINIIMIZE THE DELAY THEREBETWEEN

    公开(公告)号:US20190306380A1

    公开(公告)日:2019-10-03

    申请号:US15941717

    申请日:2018-03-30

    Abstract: Described herein is a video projection system including an optical module with at least one collimated light source to generate a light beam and at least one movable mirror to reflect the light beam. The video projection system also includes a video source producing a digital video stream in accordance with a clock signal and a movement synchronization signal, as well as a projector system. The projector system includes mirror control circuitry configured to control movement of the at least one movable mirror in accordance with the clock signal and the movement synchronization signal, a light source controller configured to control generation of collimated light by the at least one collimated light source, and processing circuitry configured to receive the digital video stream, and to generate control signals for the light source controller based upon the received digital video stream.

    DEVICE AND METHOD FOR AUTOMATIC COLOR CALIBRATION IN A LASER SCANNING APPARATUS

    公开(公告)号:US20170318271A1

    公开(公告)日:2017-11-02

    申请号:US15458192

    申请日:2017-03-14

    Inventor: Sason Sourani

    Abstract: A color calibration device for a laser scanning apparatus includes a compensation unit configured to electronically compensate for positional errors of the three-color laser source. The compensation unit includes an emitted light detector configured to measure a power of an emitted light beam. A calibration unit coupled to the emitted light detector has a controller configured to generate a quantity correction value for the three-color laser source. A laser source control element is configured to generate a control quantity for the three-color laser source, based on the quantity correction value. A dominant color detector is configured to detect any dominant color in the light beam being projected and actuate the controller for the dominant color.

    Three-dimensional gesture recognition system, circuit, and method for a touch screen
    195.
    发明授权
    Three-dimensional gesture recognition system, circuit, and method for a touch screen 有权
    触摸屏三维手势识别系统,电路和方法

    公开(公告)号:US09164674B2

    公开(公告)日:2015-10-20

    申请号:US13852478

    申请日:2013-03-28

    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。

    Method for strip testing of MEMS devices, testing strip of MEMS devices and MEMS device thereof
    196.
    发明授权
    Method for strip testing of MEMS devices, testing strip of MEMS devices and MEMS device thereof 有权
    MEMS器件的条带测试方法,MEMS器件的测试条和其MEMS器件

    公开(公告)号:US08748291B2

    公开(公告)日:2014-06-10

    申请号:US13629157

    申请日:2012-09-27

    Abstract: A method for testing a strip of MEMS devices, the MEMS devices including at least a respective die of semiconductor material coupled to an internal surface of a common substrate and covered by a protection material; the method envisages: detecting electrical values generated by the MEMS devices in response to at least a testing stimulus; and, before the step of detecting, at least partially separating contiguous MEMS devices in the strip. The step of separating includes defining a separation trench between the contiguous MEMS devices, the separation trench extending through the whole thickness of the protection material and through a surface portion of the substrate, starting from the internal surface of the substrate.

    Abstract translation: 一种用于测试MEMS器件条的方法,所述MEMS器件至少包括耦合到公共衬底的内表面并由保护材料覆盖的半导体材料的相应裸片; 该方法设想:响应于至少一个测试刺激来检测由MEMS器件产生的电值; 并且在所述检测步骤之前,至少部分地分离所述条带中的连续的MEMS器件。 分离步骤包括在连续的MEMS器件之间限定分离沟槽,分离沟槽从衬底的内表面开始延伸穿过保护材料的整个厚度并穿过衬底的表面部分。

    Electronic device for receiving a radio-frequency signal
    197.
    发明授权
    Electronic device for receiving a radio-frequency signal 有权
    用于接收射频信号的电子设备

    公开(公告)号:US08582702B2

    公开(公告)日:2013-11-12

    申请号:US12825278

    申请日:2010-06-28

    CPC classification number: H04B1/0007 H04B1/1027

    Abstract: An electronic device includes an analog-to-digital converter adapted to receive a radio-frequency signal and adapted to provide therefrom a digital signal, wherein the radio-frequency signal may include an interference signal. The electronic device has a controller adapted to perform a digital measure on the digital signal and adapted to generate therefrom a selection signal having a first value indicating a non-interference condition in the radio-frequency signal and having a second value indicating an interference-condition in the radio-frequency signal. A selector is adapted to transmit the digital signal in case the selection signal has the first value and to transmit a signal replacing the digital signal in case the selection signal has the second value.

    Abstract translation: 电子设备包括适于接收射频信号并适于从其提供数字信号的模拟 - 数字转换器,其中所述射频信号可以包括干扰信号。 电子设备具有控制器,适于对数字信号执行数字测量,并且适于从其产生具有指示射频信号中的非干扰状态的第一值的选择信号,并具有指示干扰条件的第二值 在射频信号中。 选择器适于在选择信号具有第一值的情况下发送数字信号,并且在选择信号具有第二值的情况下发送替换数字信号的信号。

    Computer navigation devices
    198.
    发明授权
    Computer navigation devices 有权
    计算机导航设备

    公开(公告)号:US08462114B2

    公开(公告)日:2013-06-11

    申请号:US11171125

    申请日:2005-06-30

    CPC classification number: G06F3/0317

    Abstract: An optical mouse includes an image sensor for providing image data via an analog-to-digital converter to a correlation circuit and a motion estimation circuit to provide output signals representative of motion of the mouse. The output signals may be disabled when the mouse is lifted away from the working surface. This may be achieved by high-pass filtering the signals, summing each frame in a summer to provide a single value, and comparing this to a threshold. If the filtered and summed value exceeds the threshold, this may indicate that the image contains in-focus objects, and that the mouse is on the working surface.

    Abstract translation: 光学鼠标包括用于经由模数转换器向相关电路提供图像数据的图像传感器和运动估计电路,以提供表示鼠标运动的输出信号。 当鼠标从工作表面离开时,输出信号可能会被禁用。 这可以通过对信号进行高通滤波来实现,在夏季对每个帧求和以提供单个值,并将其与阈值进行比较。 如果滤波和求和值超过阈值,则这可能表示图像包含对焦对象,并且鼠标位于工作表面上。

    PACKAGE FOR A MEMS SENSOR AND MANUFACTURING PROCESS THEREOF
    199.
    发明申请
    PACKAGE FOR A MEMS SENSOR AND MANUFACTURING PROCESS THEREOF 有权
    MEMS传感器的封装及其制造工艺

    公开(公告)号:US20130032936A1

    公开(公告)日:2013-02-07

    申请号:US13648213

    申请日:2012-10-09

    Inventor: Kevin Formosa

    Abstract: A packaged MEMS device, wherein at least two support structures are stacked on each other and are formed both by a support layer and a wall layer coupled to each other and delimiting a respective chamber. The chamber of the first support structure is upwardly delimited by the support layer of the second support structure. A first and a second dice are accommodated in a respective chamber, carried by the respective support layer of the first support structure. The support layer of the second support structure has a through hole allowing wire connections to directly couple the first and the second dice. A lid substrate, coupled to the second support structure, closes the chamber of the second support structure.

    Abstract translation: 一种封装的MEMS器件,其中至少两个支撑结构彼此堆叠并且由支撑层和彼此耦合并限定相应室的壁层形成。 第一支撑结构的腔室由第二支撑结构的支撑层向上限定。 第一和第二骰子容纳在由第一支撑结构的相应支撑层承载的相应的腔室中。 第二支撑结构的支撑层具有允许电线连接直接耦合第一和第二裸片的通孔。 耦合到第二支撑结构的盖基板封闭第二支撑结构的室。

    Enhanced sensitivity radio frequency front end circuit
    200.
    发明授权
    Enhanced sensitivity radio frequency front end circuit 有权
    增强灵敏度射频前端电路

    公开(公告)号:US08301186B2

    公开(公告)日:2012-10-30

    申请号:US12062666

    申请日:2008-04-04

    CPC classification number: H04B1/44

    Abstract: An enhanced sensitivity radio frequency (RF) front end circuit includes a transformer configured to convert a balanced transmit signal to an unbalanced transmit signal and to convert a second filtered receive signal to a balanced receive signal. A switch in a first state receives the unbalanced transmit signal from the transformer and transfers the unbalanced transmit signal to an amplifier circuit and receives an amplified transmit signal from the amplifier circuit and transfers the amplified transmit signal to a filter. In a second state, the switch receives a first filtered receive signal from the filter and transfers the first filtered receive signal to the amplifier circuit and receives a second filtered receive signal from the amplifier circuit and transfers the second filtered receive signal to the transformer. In a first state, the amplifier circuit receives the unbalanced transmit signal from the switch and amplifies the unbalanced transmit signal to generate the amplified transmit signal, and in a second state, the amplifier circuit receives the first filtered receive signal from the switch and attenuates selected first frequencies to generate the second filtered receive signal.

    Abstract translation: 增强灵敏度射频(RF)前端电路包括被配置为将平衡发射信号转换为不平衡发射信号并将第二滤波接收信号转换为平衡接收信号的变压器。 处于第一状态的开关从变压器接收不平衡发送信号,并将不平衡发送信号传送到放大器电路,并从放大器电路接收放大的发送信号,并将放大的发送信号传送到滤波器。 在第二状态下,开关从滤波器接收第一滤波后的接收信号,并将第一滤波后的接收信号传送到放大器电路,并从放大器电路接收第二滤波后的接收信号,并将第二滤波后的接收信号传送到变压器。 在第一状态下,放大器电路从开关接收不平衡发射信号,并放大不平衡发射信号以产生放大的发射信号,在第二状态下,放大器电路接收来自开关的第一滤波接收信号,并衰减所选择的 第一频率以产生第二滤波接收信号。

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