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公开(公告)号：US20230179886A1
公开(公告)日：2023-06-08
申请号：US17835812
申请日：2022-06-08
Applicant: Silead Inc.
Inventor： Zhen Shi , Shengrong Liu
IPC: H04N5/378 , H04N5/3745 , H03M1/56
CPC classification number: H04N5/378 , H03M1/56 , H04N5/37455
Abstract: The present disclosure relates to an optical sensing system and an analog-to-digital converter. The optical sensing system includes a ramp signal generator, a digital logic circuit and a plurality of column circuits. The ramp signal generator is configured to generate a ramp signal and transmit the ramp signal to the column circuits. The ramp signal includes a signal of which a signal intensity varies with time, and a signal intensity variation rate of the ramp signal corresponds to an amplification factor of a photosensitive electric signal. Each column circuit is configured to receive photosensitive electric signal, and output a photosensitive gain signal to the digital logic circuit according to ramp signal and photosensitive electric signal. Photosensitive gain signal includes a digital signal corresponding to photosensitive electric signal of which signal intensity is amplified. The digital logic circuit is configured to calculate a digital sampling signal according to photosensitive gain signals.
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公开(公告)号：US11460962B1
公开(公告)日：2022-10-04
申请号：US17518708
申请日：2021-11-04
Applicant: SILEAD INC.
Inventor： Wukang Zhang , Jun Yang
Abstract: A touch detection method, a touch control chip and a touch control display device are disclosed. In the touch detection method, coded data is loaded in drive channels and collected from sense channels. The collected data is decoded and subjected to differential processes. This results in a reduced common-mode signal, interference and noise. A touch response detection is carried out to choose at least one sense channel without touch response from sense channels as reference channel. This dynamically chosen reference channel reduces the risk of inaccurate touch location inference caused by abnormalities of static dummy reference channel and helps improve touch location detection accuracy, sense channels close to ends of capacitive touch control device are allowed to participate in touch response detection as other sense channels do, resulting in an expanded touch control range. The touch control chip and touch control display device all have similar advantages.
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公开(公告)号：US09977701B2
公开(公告)日：2018-05-22
申请号：US15297578
申请日：2016-10-19
Applicant: Silead Inc.
Inventor： Wenheng Zhao
CPC classification number: G06F9/54 , G06F8/30 , G06F8/41 , G06F9/451 , H04L67/34 , H04L67/40 , H04L67/42
Abstract: Methods and systems are provided for Remote Application Programming Interface (RAPI) communications between server and client devices. In an embodiment, server and client devices comprise memories and hardware processors coupled to the memories. The hardware processors execute instructions to perform operations that instantiate access point instances on both server side and client side. The instructions are generated from compiling API interface classes with remote communication classes, wherein the compiling includes a procedure of creating new classes through double inheritance. By receiving an API connection message from a client device, the server device clones a default relayer access point instance and assigns the cloned relayer access point instance to process API requests received thereafter from the client device.
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公开(公告)号：US09678610B2
公开(公告)日：2017-06-13
申请号：US14415237
申请日：2013-07-17
Applicant: Silead Inc.
Inventor： Taiyi Cheng , Tianming Zhao , Hao Tang
CPC classification number: G06F3/044 , G06F1/16 , G06F3/0416
Abstract: Disclosed are a capacitive touch screen and a single layer wiring electrode array. The single layer wiring electrode array includes capacitive regions and wiring regions located on one plane. Wires in the wiring regions are zigzag-shaped or wave-shaped. The capacitive touch screen includes a substrate; a single layer wiring electrode array disposed over the substrate, wherein the single layer wiring electrode array includes capacitive regions and wiring regions located on one plane and wires in the wiring region are zigzag-shaped or wave-shaped; and control ports for connecting to one or more integrated circuits, wherein the wires in the wiring regions are connected to the control ports respectively. The single layer wiring electrode array and the capacitive touch screen lower the fabrication cost and improve the display effects.
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公开(公告)号：US20150177878A1
公开(公告)日：2015-06-25
申请号：US14415237
申请日：2013-07-17
Applicant: Silead Inc.
Inventor： Taiyi Cheng , Tianming Zhao , Hao Tang
CPC classification number: G06F3/044 , G06F1/16 , G06F3/0416
Abstract: Disclosed are a capacitive touch screen and a single layer wiring electrode array. The single layer wiring electrode array includes capacitive regions and wiring regions located on one plane. Wires in the wiring regions are zigzag-shaped or wave-shaped. The capacitive touch screen includes a substrate; a single layer wiring electrode array disposed over the substrate, wherein the single layer wiring electrode array includes capacitive regions and wiring regions located on one plane and wires in the wiring region are zigzag-shaped or wave-shaped; and control ports for connecting to one or more integrated circuits, wherein the wires in the wiring regions are connected to the control ports respectively. The single layer wiring electrode array and the capacitive touch screen lower the fabrication cost and improve the display effects.
Abstract translation: 公开了电容式触摸屏和单层布线电极阵列。 单层布线电极阵列包括位于一个平面上的电容区域和布线区域。 布线区域的线为锯齿状或波状。 电容式触摸屏包括基板; 设置在所述基板上的单层布线电极阵列，其中所述单层布线电极阵列包括位于一个平面上的电容区域和布线区域，并且所述布线区域中的布线是曲折形或波浪形的; 以及用于连接到一个或多个集成电路的控制端口，其中布线区域中的导线分别连接到控制端口。 单层布线电极阵列和电容式触摸屏降低制造成本，提高显示效果。
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Patent Agency Ranking
公开(公告)号：US11861935B2
公开(公告)日：2024-01-02
申请号：US17992590
申请日：2022-11-22
Applicant: Silead Inc.
CPC classification number: G06V40/1365 , G06V10/26 , G06V40/1306
Abstract: The embodiments of the present disclosure provide a fingerprint detection method and a fingerprint module. The fingerprint detection method includes: dividing a detection area of the fingerprint module into a plurality of detection blocks, wherein each of the detection blocks comprises a plurality of detection units, and each of the detection units is corresponding to a grayscale value; scanning at least part of the detection blocks to obtain the grayscale values; determining whether each of the detection blocks is in a covered state based on the grayscale values; and counting the number of the detection blocks in the covered state, and sending a collection request to a host to inform the host to obtain a fingerprint image if the number thereof is not less than a coverage block threshold. The method avoids meaningless detection caused by a false touch, and ensures integrity of the fingerprint image collected later.
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公开(公告)号：US10747586B2
公开(公告)日：2020-08-18
申请号：US15984460
申请日：2018-05-21
Applicant: Silead Inc.
Inventor： Wenheng Zhao
Abstract: Methods and systems are provided for Remote Application Programming Interface (RAPI) communications between server and client devices. In an embodiment, server and client devices comprise memories and hardware processors coupled to the memories. The hardware processors execute instructions to perform operations that instantiate access point instances on both server side and client side. The instructions are generated from compiling API interface classes with remote communication classes, wherein the compiling includes a procedure of creating new classes through double inheritance. By receiving an API connection message from a client device, the server device clones a default relayer access point instance and assigns the cloned relayer access point instance to process API requests received thereafter from the client device.
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公开(公告)号：US10310670B2
公开(公告)日：2019-06-04
申请号：US15543924
申请日：2015-01-16
Applicant: SILEAD INC.
Inventor： Taiyi Cheng
Abstract: Disclosed is a system and method for a capacitive sensing device. The method includes transmitting a stimulation signal to a driving channel of the capacitive sensing device. The stimulation signal includes a plurality of sub-stimulation signals. Each of the sub-stimulation signals is characterized by an amplitude and a frequency. The frequencies of the sub-stimulation signals are orthogonal. The method further includes receiving a charge signal from a sensing channel of the capacitive sensing device. The charge signal is generated from the stimulation signal through a capacitance between the driving channel and the sensing channel. The method further includes detecting, from the charge signal, a plurality of sub-charge signal amplitudes at the frequencies of the sub-stimulation signals, and reporting a value about the capacitance from the sub-charge signal amplitudes. The method benefits the capacitive sensing device for increased noise immunity, reduced dynamic range, and reduced power consumption.
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公开(公告)号：US20180267843A1
公开(公告)日：2018-09-20
申请号：US15984460
申请日：2018-05-21
Applicant: Silead Inc.
Inventor： Wenheng Zhao
Abstract: Methods and systems are provided for Remote Application Programming Interface (RAPI) communications between server and client devices. In an embodiment, server and client devices comprise memories and hardware processors coupled to the memories. The hardware processors execute instructions to perform operations that instantiate access point instances on both server side and client side. The instructions are generated from compiling API interface classes with remote communication classes, wherein the compiling includes a procedure of creating new classes through double inheritance. By receiving an API connection message from a client device, the server device clones a default relayer access point instance and assigns the cloned relayer access point instance to process API requests received thereafter from the client device.
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10.发明授权公开(公告)号：US11847843B2
公开(公告)日：2023-12-19
申请号：US17946553
申请日：2022-09-16
Applicant: Silead Inc.
Inventor： Fengyun Yan , Zhanqi Xie , Yungang Sun , Zhenguo Yang , Xiaochi Zhang
CPC classification number: G06V20/647 , G06V10/10 , G06V40/1318 , G06V40/1347 , G06V40/1365
Abstract: The present disclosure provides an under-screen optical fingerprint identification apparatus and a fingerprint identification method. The under-screen optical fingerprint identification apparatus comprises: a photodetection array which has a photosensitive area on which a photosensitive pixel array is provided, wherein the photosensitive pixel array comprises at least three types of pixels; and a fingerprint contact identification area located above the photodetection array and comprising a light-emitting layer and a cover layer, wherein the cover layer has a contact area, and the light-emitting layer has an identification area corresponding to the contact area, wherein the identification area comprises light-emitting units, each of which comprises a light-transmitting area and at least three light-emitting areas located therearound for emitting detection light of corresponding wavebands, wherein the detection light is reflected by an object to be identified to form signal light which passes through the filter layers and reaches corresponding three types of pixels.
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