Modification of column fixed pattern column noise in solid state image sensors
    41.
    发明申请
    Modification of column fixed pattern column noise in solid state image sensors 有权
    固态图像传感器中列固定模式列噪声的修改

    公开(公告)号:US20020051067A1

    公开(公告)日:2002-05-02

    申请号:US09932822

    申请日:2001-08-17

    CPC classification number: H04N5/3658 H04N5/3575 H04N5/378

    Abstract: Solid state image sensors, and methods of operation thereof, includes an array of photosensitive pixels arranged in rows and columns and in which pixel data signals are read out from the pixels via column circuits, which introduces column fixed pattern noise to the signals. The signals are selectively inverted at the inputs to the column circuits and the inversion is reversed following output from the column circuits. Each column circuit may include an analog-to-digital converter and a digital inverter for inverting digital output therefrom. The selective inversion may be applied to alternate rows or groups of rows of the pixel data, and may be applied differently to different frames of the pixel data. These techniques result in column fixed pattern noise being modulated in a manner which makes the noise less apparent to the eye, and which facilitates subsequent cancellation of the noise.

    Abstract translation: 固态图像传感器及其操作方法包括以列和列排列的光敏像素的阵列,其中通过列电路从像素读出像素数据信号,该列电路将列固定图案噪声引入信号。 这些信号在列电路的输入端被选择性地反相,并且在从列电路输出之后反转反转。 每列电路可以包括模数转换器和用于反转数字输出的数字反相器。 选择性反转可以应用于像素数据的行的交替行或组,并且可以不同地应用于像素数据的不同帧。 这些技术导致列固定模式噪声以使噪声对眼睛不太明显的方式进行调制,并且有助于随后的噪声消除。

    Mounting electronic components
    42.
    发明申请
    Mounting electronic components 有权
    安装电子元件

    公开(公告)号:US20020040810A1

    公开(公告)日:2002-04-11

    申请号:US09938850

    申请日:2001-08-24

    Inventor: Brian Laffoley

    Abstract: A method of mounting an electronic component having at least one contact extending across a part of its undersurface may include providing a support smaller in area than the undersurface of the component and having a contact pad for connection to the contact. The contact pad may have a first portion extending across an upper surface of the support adjacent one edge and a second portion extending from the edge across a side surface of the support. The method may also include positioning the electronic component and the support with the undersurface of the component adjacent the upper surface of the support. This is done so that the first portion of the contact pad is aligned with and spaced apart from a first portion of the contact, and the second portion of the contact pad is aligned with and disposed inwardly of a second portion of the contact.

    Abstract translation: 安装具有延伸穿过其下表面的一部分的至少一个触点的电子部件的方法可以包括提供比部件的下表面更小的面积的支撑件,并具有用于连接到触头的接触垫。 接触垫可以具有延伸穿过支撑件的上表面邻近一个边缘的第一部分和从边缘延伸穿过支撑件的侧表面的第二部分。 该方法还可以包括将电子部件和支撑件定位成邻近支撑件的上表面的部件的下表面。 这样做使得接触垫的第一部分与接触件的第一部分对齐并且与接触垫的第一部分间隔开,并且接触垫的第二部分与接触件的第二部分对准并设置在接触件的第二部分的内侧。

    System and method for display synchronization

    公开(公告)号:US12229370B2

    公开(公告)日:2025-02-18

    申请号:US18459249

    申请日:2023-08-31

    Abstract: A method of operating a display includes performing a non-synchronized touch scan pattern on a display with a controller coupled to the display. The non-synchronized touch scan pattern schedules touch scans independent of a refresh rate of the display. Upon the controller detecting a first synchronization pulse from a display controller coupled to the controller and the display, a first pulse-checking timer is started. Upon detecting a second synchronization pulse from the display controller and before the first pulse-checking timer expires, a first display refresh rate for the display is obtained from an interval between the first synchronization pulse and the second synchronization pulse. A synchronized touch scan pattern is performed with the controller, and is scheduled to avoid touch scans coinciding with refreshes of the display performed at the first display refresh rate.

    MICRO LENS ARRAYS AND METHODS OF FORMATION THEREOF

    公开(公告)号:US20250040281A1

    公开(公告)日:2025-01-30

    申请号:US18917441

    申请日:2024-10-16

    Inventor: Yu-Tsung Lin

    Abstract: A method of forming a device, the method including depositing a first photoresist layer over a substrate, forming an array of seed lenses by patterning and reflowing the first photoresist layer, a dimension of the array of seed lenses varying across the substrate, forming a second photoresist layer over the array of seed lenses, and forming a microlens array by patterning and reflowing the second photoresist layer.

    Discharge of an AC capacitor
    47.
    发明授权

    公开(公告)号:US11711013B2

    公开(公告)日:2023-07-25

    申请号:US17568247

    申请日:2022-01-04

    Inventor: Laurent Gonthier

    CPC classification number: H02M1/322 H02M1/0085 H02M1/08 H02M7/155 H02M7/1555

    Abstract: A circuit includes two thyristors coupled in anti-series. An AC capacitor has first and second electrodes respectively coupled to two different electrodes of the two thyristors. The first and second electrodes are coupled to receive an AC voltage. A control circuit detects discontinuance of application of the AC voltage to the AC capacitor and in response thereto simultaneously applies same gate currents to the two thyristors. A current path through the two thyristors (one passing current in forward mode and the other in reverse mode) discharges a residual voltage stored on the AC capacitor.

    NFC CHARGING
    48.
    发明公开
    NFC CHARGING 审中-公开

    公开(公告)号:US20230170938A1

    公开(公告)日:2023-06-01

    申请号:US18153958

    申请日:2023-01-12

    Abstract: The present disclosure relates to a method for aligning a smartphone providing NFC wireless power for charging a battery of a device, the method comprising: emitting, with a first NFC antenna of the smartphone, an NFC field for wirelessly charging the battery of the device comprising a second NFC antenna; obtaining, with the smartphone, a measured value of a signal representative of the NFC field strength between the smartphone and the device; determining, by the smartphone, a range of values of a plurality of ranges of values the measured value belongs; and emitting, by the smartphone, at least one notification signal to a user with a frequency determined by the determined range of values.

    Driving multiple resonance MEMS mirrors with a single frequency

    公开(公告)号:US11474425B2

    公开(公告)日:2022-10-18

    申请号:US16540557

    申请日:2019-08-14

    Abstract: A control circuit includes a first control circuit generating a first drive control signal from a pre-drive signal (that is a frequency at which an opening angle of the first and second mirrors is equal) for the first mirror. A second control circuit generates a second drive control signal from the pre-drive signal for the second mirror. First and second drivers generate first and second drive signals for the first and second mirrors from the first and second drive control signals. The first and second drive control signals are generated so that the first and second drive signals each have a same frequency as the pre-drive signal but are different in amplitude from one another to cause the first and second mirrors to move at a same frequency, with a same and substantially constant given opening angle as one another, and in phase with one another.

    Envelope detection circuit for detection of opening angle of a movable MEMS mirror

    公开(公告)号:US11226480B2

    公开(公告)日:2022-01-18

    申请号:US16897491

    申请日:2020-06-10

    Abstract: An electronic device includes an analog to digital converter receiving an analog mirror sense signal from an oscillating mirror and generating a digital mirror sense signal therefrom, and a digital signal processing block. The digital signal processing block cooperates with the analog to digital converter to take a first sample of the digital mirror sense signal at a first time where a derivative of capacitance of the digital mirror sense signal crosses zero, take a second sample of the digital mirror sense signal at a second time between a peak of the digital mirror sense signal and the first time, and take a third sample of the digital mirror sense signal at a third time after the digital mirror sense signal has reached a minimum. Control circuitry determines an opening angle of the oscillating mirror as a function of the first, second, and third samples.

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