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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：US09542587B2
公开(公告)日：2017-01-10
申请号：US14443342
申请日：2014-04-29
Applicant: SILEAD, INC.
Inventor： Taiyi Cheng , Xianggui Zhao
IPC: G01R27/08 , G06K9/00 , H01L27/092 , H01L27/06 , G01N27/22 , H03K19/003 , G11C29/00
CPC classification number: G06K9/0002 , G01N27/228 , G11C29/785 , H01L27/0629 , H01L27/092 , H01L27/0922 , H01L29/1033 , H03K17/223 , H03K19/00361 , H03K19/00392
Abstract: The present invention relates to a chip design and discloses a fingerprint information detection circuit. The invention includes a reset unit, a feedback unit, an amplification unit and a source follower unit; the reset unit is connected to the feedback unit and amplification unit, while the feedback unit is connected to the amplification unit, and the amplification unit is connected to the source follower unit; when the reset transistor built-into the reset unit is on, it stores an electric charge, and resets the feedback unit; when the reset transistor is off, the stored electric charge is injected into the feedback unit and amplification unit; the feedback unit receives the electric charge, and outputs the second voltage signal generated when it detects fingerprints to the source follower unit; the amplification unit amplifies the received signal and outputs it to the source follower unit; the source follower unit receives the signal, performs voltage level shifting before outputting the first voltage signal that carries the detected fingerprint information. The present invention enables the circuit to use a reduced chip area, hence, saving the cost of the chip.
Abstract translation: 本发明涉及一种芯片设计，并公开了一种指纹信息检测电路。 本发明包括复位单元，反馈单元，放大单元和源极跟随单元; 复位单元连接到反馈单元和放大单元，而反馈单元连接到放大单元，并且放大单元连接到源极跟随单元; 当内置复位单元的复位晶体管导通时，存储电荷，并复位反馈单元; 当复位晶体管截止时，将存储的电荷注入反馈单元和放大单元; 反馈单元接收电荷，并将其检测指纹时产生的第二电压信号输出到源极跟随单元; 放大单元放大接收信号并将其输出到源极跟随器单元; 源极跟随器单元接收信号，在输出携带检测到的指纹信息的第一电压信号之前执行电压电平移位。 本发明使得电路能够使用减小的芯片面积，因此节省了芯片的成本。
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Patent Agency Ranking
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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公开(公告)号：US10222919B2
公开(公告)日：2019-03-05
申请号：US15598648
申请日：2017-05-18
Applicant: Silead Inc.
Inventor： Taiyi Cheng , Tianming Zhao , Hao Tang
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：US09922230B2
公开(公告)日：2018-03-20
申请号：US15384041
申请日：2016-12-19
Applicant: SILEAD, INC.
Inventor： Taiyi Cheng , Xianggui Zhao
IPC: G06K9/00 , G01N27/22 , H01L27/06 , H01L27/092 , H03K17/22 , G11C29/00 , H03K19/003 , H01L29/10
CPC classification number: G06K9/0002 , G01N27/228 , G11C29/785 , H01L27/0629 , H01L27/092 , H01L27/0922 , H01L29/1033 , H03K17/223 , H03K19/00361 , H03K19/00392
Abstract: A fingerprint information detection circuit comprises an amplification unit, a source follower unit, a reset unit, and a feedback unit. The amplification unit is coupled to the source follower unit. The reset unit is coupled to both the feedback unit and the amplification unit. The feedback unit and the amplification unit are coupled. The reset unit includes a first transistor and a reset transistor, wherein source and drain electrodes of the first transistor are coupled, wherein one of source and drain electrodes of the reset transistor is coupled to the source and drain electrodes of the first transistor.
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公开(公告)号：US20170308205A1
公开(公告)日：2017-10-26
申请号：US15598648
申请日：2017-05-18
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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