公开(公告)号：US07893714B2

公开(公告)日：2011-02-22

申请号：US12367310

申请日：2009-02-06

Applicant: Ching Chu

Inventor： Ching Chu

IPC: H03K19/094 ,  H03K3/00

CPC classification number: H03K17/002 ,  H03K17/693

Abstract: An integrated circuit high voltage analog switch has digital logic-level control interface circuit. A level translator is coupled to the digital logic-level control interface circuit. A plurality of output multi-channel high voltage switches is coupled to the level translator.

Abstract translation: 集成电路高压模拟开关具有数字逻辑电平控制接口电路。 电平转换器耦合到数字逻辑电平控制接口电路。 多个输出多通道高压开关耦合到电平转换器。

公开(公告)号：US5319266A

公开(公告)日：1994-06-07

申请号：US21436

申请日：1993-02-24

Applicant: Ching Chu ,  John Haywood

Inventor： Ching Chu ,  John Haywood

IPC: G01M11/00 ,  H04B10/07 ,  B11C27/02

CPC classification number: G01M11/3154 ,  H04B10/07

Abstract: A switched boxcar integrating circuit suitable for use with high speed data acquisition systems such as an Optical Domain Reflectometer. The boxcar integrator comprises a differential pre-amplifier stage, a sampling switch, and an integrator. The sampling switch couples the output of the pre-amplifier to the input of the integrator. The integrator includes non-inverting and inverting stages for producing a differential integrated signal. The switch samples the output of the pre-amplifier. The samples are integrated by the integrator once a sufficient number have been acquired. The sampling switch includes a switch controller to synchronize the operation of the switch with the received signals. The integrator also includes an offset compensator and a reset switch which are coupled to the integrator. The offset compensator and reset switch set the integrator to zero and also correct any offset error. A feature of the boxcar integrator according to the present invention is the variable integrator aperture which allows the response of the receiver stage in an OTDR to be matched to the characteristics of the transmit stage.

Abstract translation: 一种适用于高速数据采集系统（如光学域反射计）的开关盒式积分电路。 盒式积分器包括差分前置放大器级，采样开关和积分器。 采样开关将前置放大器的输出端耦合到积分器的输入端。 积分器包括用于产生差分积分信号的同相和反相级。 开关对前置放大器的输出进行采样。 一旦获得足够的数量，样品就被积分器集成。 采样开关包括开关控制器，以将开关的操作与所接收的信号同步。 积分器还包括耦合到积分器的偏移补偿器和复位开关。 偏移补偿器和复位开关将积分器设置为零，并且还校正任何偏移误差。 根据本发明的箱式积分器的特征是可变积分器孔径，其允许OTDR中的接收机级的响应与发射级的特性匹配。

公开(公告)号：US08013640B1

公开(公告)日：2011-09-06

申请号：US12484107

申请日：2009-06-12

Applicant: Ching Chu

Inventor： Ching Chu

IPC: H03B21/00

CPC classification number: G10K11/346

Abstract: An electrical waveform generating circuit has a programmable current source-driver. A digital switched current source is coupled to the programmable current source-driver and controlled by waveforms stored in the programmable current source-driver. A plurality of MOSFETs is coupled to the programmable current source driver. A center-tapped RF transformer is provided and has a primary coupled to the plurality of high voltage MOSFETs. A transducer is coupled to a secondary of the RF transformer.

Abstract translation: 电波形发生电路具有可编程电流源驱动器。 数字开关电流源耦合到可编程电流源驱动器并由存储在可编程电流源驱动器中的波形控制。 多个MOSFET耦合到可编程电流源驱动器。 提供了中心抽头的RF变压器，并且具有初级耦合到多个高压MOSFET。 传感器耦合到RF变压器的次级。

公开(公告)号：US07977820B2

公开(公告)日：2011-07-12

申请号：US12354137

申请日：2009-01-15

Applicant: Ching Chu ,  Benedict C. K. Choy

Inventor： Ching Chu ,  Benedict C. K. Choy

IPC: H03K3/00

CPC classification number: H01L41/042 ,  A61B8/4483 ,  B06B1/0215 ,  H03F3/301 ,  H03K3/64

Abstract: A ultrasound transmit pulse waveform generator for driving a piezoelectric transducer in medical ultrasound imaging, nondestructive testing (NDT) ultrasound imaging applications, includes a capacitor, switching programmable current sources, and a power amplifier.

Abstract translation: 用于驱动医疗超声成像，无损检测（NDT）超声成像应用中的压电换能器的超声波发射脉冲波形发生器包括电容器，开关可编程电流源和功率放大器。

公开(公告)号：US07956653B1

公开(公告)日：2011-06-07

申请号：US12434862

申请日：2009-05-04

Applicant: Benedict C. K. Choy ,  Ching Chu

Inventor： Benedict C. K. Choy ,  Ching Chu

IPC: H03K3/00

CPC classification number: H03K3/021 ,  H03F3/217 ,  H03K3/64 ,  H03K5/05 ,  H03K17/6872

Abstract: A complementary high voltage switched current source circuit has a complementary current source pair, wherein a first of the current source pair is coupled to a positive voltage rail and a second of the current source pair is coupled to a negative voltage rail. A digital logic-level control interface circuit is coupled to the complementary current source pair and to the positive voltage rail and the negative voltage rail. A pair of high voltage switches is coupled to the complementary current source pair and the digital logic-level control interface circuit and controlled by the digital control interface circuit.

Abstract translation: 互补高压开关电流源电路具有互补电流源对，其中电流源对中的第一个耦合到正电压轨，并且电流源对中的第二个耦合到负电压轨。 数字逻辑电平控制接口电路耦合到互补电流源对以及正电压轨和负电压轨。 一对高电压开关耦合到互补电流源对和数字逻辑电平控制接口电路，并由数字控制接口电路控制。

公开(公告)号：US20090206676A1

公开(公告)日：2009-08-20

申请号：US12354137

申请日：2009-01-15

Applicant: Ching Chu ,  Benedict C. K. Choy

Inventor： Ching Chu ,  Benedict C. K. Choy

IPC: H03K3/64 ,  H02N2/06

CPC classification number: H01L41/042 ,  A61B8/4483 ,  B06B1/0215 ,  H03F3/301 ,  H03K3/64

Abstract: A ultrasound transmit pulse waveform generator for driving a piezoelectric transducer in medical ultrasound imaging, nondestructive testing (NDT) ultrasound imaging applications, includes a capacitor, switching programmable current sources, and a power amplifier.

Abstract translation: 用于驱动医疗超声成像，无损检测（NDT）超声成像应用中的压电换能器的超声波发射脉冲波形发生器包括电容器，开关可编程电流源和功率放大器。

公开(公告)号：US5194721A

公开(公告)日：1993-03-16

申请号：US512185

申请日：1990-04-20

Applicant: Ching Chu

Inventor： Ching Chu

IPC: G02B26/10

CPC classification number: G02B26/10

Abstract: An optical scanner has focusing elements rotatable about a fixed axis. The elements are each mounted on a flexible radially extending suspension arm. A magnet is carried by each arm and passes a coil extending along the path of the elements. Current to the coil is controlled to induce movement of the arm in a direction parallel to the axis of rotation and effect focusing of the elements.

Abstract translation: 光学扫描器具有可围绕固定轴线旋转的聚焦元件。 这些元件各自安装在柔性的径向延伸的悬挂臂上。 磁铁由各个手臂承载，并通过沿元件的路径延伸的线圈。 控制到线圈的电流以引起臂在平行于旋转轴线的方向上的移动并且实现元件的聚焦。

公开(公告)号：US5040861A

公开(公告)日：1991-08-20

申请号：US388376

申请日：1989-08-02

Applicant: Ching Chu

Inventor： Ching Chu

IPC: G02B26/10

CPC classification number: G02B26/10

Abstract: An optical scanner has a light distributor rotating about an axis spaced from but parallel to the optical axis of at light source. Lenses are mounted on a carrier that rotates about the optical axis. The distributor and carrier rotate a the same angular velocity and are arranged so that the lens and associated distributor move across the media at the same time. By rotating the lens about the optical axis, the scanning beam remains in the central zone of the lens as it passes across the media.

公开(公告)号：US09048104B2

公开(公告)日：2015-06-02

申请号：US12834853

申请日：2010-07-12

Applicant: Benedict C. K. Choy ,  Ching Chu ,  Haibing (Robin) Liu ,  Ming-Yuan Yeh

Inventor： Benedict C. K. Choy ,  Ching Chu ,  Haibing (Robin) Liu ,  Ming-Yuan Yeh

IPC: H01L29/40 ,  H01L23/00 ,  H01L23/495 ,  H01L23/525 ,  H01L29/08 ,  H01L29/66 ,  H01L29/78

CPC classification number: H01L29/0642 ,  H01L23/481 ,  H01L23/49575 ,  H01L23/525 ,  H01L24/06 ,  H01L24/29 ,  H01L24/48 ,  H01L24/49 ,  H01L27/088 ,  H01L29/0878 ,  H01L29/66712 ,  H01L29/7809 ,  H01L29/7827 ,  H01L2224/05553 ,  H01L2224/05554 ,  H01L2224/05599 ,  H01L2224/32245 ,  H01L2224/48091 ,  H01L2224/48135 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2224/49171 ,  H01L2224/73265 ,  H01L2224/85399 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01014 ,  H01L2924/01033 ,  H01L2924/01075 ,  H01L2924/01082 ,  H01L2924/07802 ,  H01L2924/10161 ,  H01L2924/10329 ,  H01L2924/1305 ,  H01L2924/14 ,  H01L2224/45099 ,  H01L2924/00

Abstract: A circuit module comprises a die attach pad with a surface and a plurality of leads surrounding the surface. A nonconductive adhesive is on the surface. A plurality of electronic circuit dies are on the surface of the die attach pad. Each die has a top surface and a bottom surface with the bottom surface on the adhesive. The top surface has a plurality of bonding pads. A first electronic circuit die has at least one routing path of a conductive material connecting a first bonding pad to a second bonding pad. A first bonding wire connects a bonding pad of a second electronic circuit die to the first bonding pad of the first electronic die. A second bonding wire connects the second bonding pad of the first electronic circuit die to a lead. Where one of the dies contains vertical circuit element, where a doped layer forms a terminal along the bottom surface of the layer, a trench filled with doped polysilicon extends from the top surface to the terminal to connect to the terminal. The doped polysilicon filled trench also serves to isolate and separate different circuit elements.

Abstract translation: 电路模块包括具有表面的管芯附接垫和围绕表面的多个引线。 非导电粘合剂在表面上。 多个电子电路管芯在管芯附着垫的表面上。 每个模具具有顶表面和底表面，底表面在粘合剂上。 顶表面具有多个接合焊盘。 第一电子电路管芯具有将第一接合焊盘连接到第二接合焊盘的导电材料的至少一个布线路径。 第一接合线将第二电子电路管芯的接合焊盘连接到第一电子管芯的第一接合焊盘。 第二接合线将第一电子电路管芯的第二接合焊盘连接到引线。 在其中一个裸片包含垂直电路元件的情况下，其中掺杂层沿着该层的底表面形成端子，填充有掺杂多晶硅的沟槽从顶表面延伸到端子以连接至端子。 掺杂多晶硅填充的沟槽还用于隔离和分离不同的电路元件。

公开(公告)号：US20140049299A1

公开(公告)日：2014-02-20

申请号：US13587551

申请日：2012-08-16

Applicant: Ching Chu

Inventor： Ching Chu

IPC: H03B28/00

CPC classification number: G10K11/346

Abstract: An electrical waveform generating circuit has a programmable current source-driver. A digital switched current source is coupled to the programmable current source-driver and controlled by waveforms stored in the programmable current source-driver. A plurality of MOSFETs is coupled to the programmable current source driver. A first coupled inductor is connected to the plurality of high voltage MOSFETs. A transducer is coupled to the first coupled inductor.

Abstract translation: 电波形发生电路具有可编程电流源驱动器。 数字开关电流源耦合到可编程电流源驱动器并由存储在可编程电流源驱动器中的波形控制。 多个MOSFET耦合到可编程电流源驱动器。 第一耦合电感器连接到多个高压MOSFET。 传感器耦合到第一耦合电感器。