公开(公告)号：US07400118B1

公开(公告)日：2008-07-15

申请号：US11756753

申请日：2007-06-01

Applicant: Zhiye Zhang ,  Yu-Cheng Chang

Inventor： Zhiye Zhang ,  Yu-Cheng Chang

IPC: G05F1/00

CPC classification number: H02M3/1588 ,  H02M2001/0032 ,  Y02B70/1466 ,  Y02B70/16

Abstract: A high efficiency single-inductor dual-control loop power converter (SIDL) is proposed for converting unregulated DC input into regulated DC output to a power load. The SIDL includes: an energy storage loop having: a power inductor, a power capacitor and a power diode. A PWM switching power regulating loop for converting the unregulated DC input into the regulated DC output. a power-efficiency maximizing loop in parallel connection with the power diode. The power-efficiency maximizing loop includes: a power shunt transistor in parallel connection with the power diode and a real-time control loop adjusting, in response to a freewheeling current through the power diode, conductance of the power shunt transistor in a manner that a higher freewheeling current results in a higher conductance of the power shunt transistor.

Abstract translation: 提出了一种高效率单电感双控制回路功率转换器（SIDL），用于将未调节的直流输入转换为稳压直流输出至电源负载。 SIDL包括：能量存储回路，其具有：功率电感器，功率电容器和功率二极管。 PWM开关功率调节回路，用于将未调节的直流输入转换为稳压直流输出。 与功率二极管并联连接的功率效率最大化环路。 功率效率最大化环路包括：与功率二极管并联连接的功率并联晶体管和实时控制环路，响应于通过功率二极管的续流电流调节功率并联晶体管的电导，其方式为 更高的续流电流导致功率并联晶体管的较高电导。

公开(公告)号：US20070252802A1

公开(公告)日：2007-11-01

申请号：US11414171

申请日：2006-05-01

Applicant: Chia-Lang Lin ,  Yu-Cheng Chang

Inventor： Chia-Lang Lin ,  Yu-Cheng Chang

IPC: G09G3/36

CPC classification number: G09G3/3611 ,  G09G3/2014 ,  G09G3/2025 ,  G09G3/2077 ,  G09G2320/0209 ,  G09G2320/0247

Abstract: The present invention discloses a driving method for increasing gray level, wherein the PWM mode is added into the FRM mode, and the PWM mode is implemented with the common drive circuit; the section of the horizontal synchronous signal of a frame interval is divided into multiple sub-sections according to the requirement of the PWM mode; the control of the length of the turn-on period within a frame interval is implemented with a redesigned control circuit, and none special drive circuit is needed.

Abstract translation: 本发明公开了一种用于增加灰度级的驱动方法，其中将PWM模式添加到FRM模式中，并且利用公共驱动电路实现PWM模式; 帧间隔的水平同步信号部分根据PWM模式的要求分为多个子部分; 通过重新设计的控制电路来实现帧间隔内的导通周期的长度的控制，并且不需要特殊的驱动电路。

公开(公告)号：US20060278707A1

公开(公告)日：2006-12-14

申请号：US11189671

申请日：2005-07-26

Applicant: Chung-Kai Wang ,  Yu-Cheng Chang ,  Hsi-Yu Chen

Inventor： Chung-Kai Wang ,  Yu-Cheng Chang ,  Hsi-Yu Chen

IPC: G06K7/10 ,  G06K7/00

CPC classification number: G06K7/10683 ,  G06K7/10811

Abstract: By combining a sensing module having a lens and an image sensor with a carriage module having a mirror set, a reading device of a scanning apparatus is assembled. The sensing module further includes two channels at bilateral sides of the lens and two guiding slots disposed on external sides of the channels. The carriage module further includes two linear tracks corresponding to the channels and two bolt hole pedestals corresponding to the guiding slots. The sensing module is glided on the carriage module when the linear tracks are embedded in corresponding channels, thereby correcting the desired magnification.

公开(公告)号：US06707264B2

公开(公告)日：2004-03-16

申请号：US10299206

申请日：2002-11-19

Applicant: Yung-Lin Lin ,  Yu-Cheng Chang ,  Bingwei Yao

Inventor： Yung-Lin Lin ,  Yu-Cheng Chang ,  Bingwei Yao

IPC: H05B3702

CPC classification number: H02M1/36 ,  H02J1/14 ,  H02M2001/008 ,  H05B41/3927

Abstract: A sequential burst mode regulation system to deliver power to a plurality of loads. In the exemplary embodiments, the system of the present invention generates a plurality of phased pulse width modulated signals from a single pulse width modulated signal, where each of the phased signals regulates power to a respective load. Exemplary circuitry includes a PWM signal generator, and a phase delay array that receives a PWM signal and generates a plurality of phased PWM signals which are used to regulate power to respective loads. A frequency selector circuit can be provided that sets the frequency of the PWM signal using a fixed or variable frequency reference signal.

Abstract translation: 一种用于向多个负载输送功率的连续突发模式调节系统。 在示例性实施例中，本发明的系统从单个脉冲宽度调制信号产生多个相位脉冲宽度调制信号，其中每个相控信号调节相应负载的功率。 示例性电路包括PWM信号发生器和相位延迟阵列，其接收PWM信号并产生用于调节相应负载功率的多个定相PWM信号。 可以提供使用固定或可变频率参考信号来设置PWM信号的频率的频率选择器电路。

公开(公告)号：US20170087043A1

公开(公告)日：2017-03-30

申请号：US15272753

申请日：2016-09-22

Applicant: Chia-Pao Chang ,  Ying-Hsiang Lin ,  Yu-Cheng Chang

Inventor： Chia-Pao Chang ,  Ying-Hsiang Lin ,  Yu-Cheng Chang

IPC: A61H3/04 ,  B60B33/00

CPC classification number: A61H3/04 ,  A61H2003/046 ,  A61H2201/1635 ,  A61H2201/1671 ,  B60B33/0063 ,  B60B33/0081 ,  B60B33/0094 ,  B60B33/063 ,  B60B2200/22 ,  B60B2200/26

Abstract: A walking aid device includes a support body inclusive of a plurality of support elements extending toward the ground. Each support element is coupled to a caster and a brake unit. Each brake unit has a clutching surface. The clutching surface controllably clutches a wheel of the caster or the ground to thereby generate friction for stopping the walking aid device.

公开(公告)号：US20160224190A1

公开(公告)日：2016-08-04

申请号：US14831885

申请日：2015-08-21

Applicant: Chi-Tang Hsieh ,  Yu-Jie Su ,  Yu-Cheng Chang ,  Zong Qin ,  Yi-Pai Huang

Inventor： Chi-Tang Hsieh ,  Yu-Jie Su ,  Yu-Cheng Chang ,  Zong Qin ,  Yi-Pai Huang

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/0304 ,  G06F3/0346 ,  G06F3/0425

Abstract: An optical object positioning apparatus including an optical element, a light sensor and a processing unit and a positioning method thereof are provided. The optical element includes a first surface and a second surface opposite to each other and perpendicular to a first axis, and has at least two light-passing regions. Light beams from an object to be positioned pass through the light-passing regions from the first surface to the second surface. The light sensor and the optical element are spaced by a predetermined distance on a direction of the first axis. The light sensor senses the light beams from the light-passing regions to generate at least two light-sensing signals. A distance between the object and the optical element is positively correlated to the predetermined distance. The processing unit receives the light-sensing signals and positions the object according to the light-sensing signals and the predetermined distance.

Abstract translation: 提供一种包括光学元件，光传感器和处理单元及其定位方法的光学对象定位设备。 光学元件包括彼此相对且垂直于第一轴线的第一表面和第二表面，并且具有至少两个光通过区域。 来自待定位物体的光束从第一表面到第二表面通过光通过区域。 光传感器和光学元件在第一轴线的方向上间隔预定距离。 光传感器感测来自光通过区域的光束以产生至少两个光感测信号。 物体与光学元件之间的距离与预定距离正相关。 处理单元接收光感测信号，并根据光检测信号和预定距离对物体进行定位。

公开(公告)号：US08742931B2

公开(公告)日：2014-06-03

申请号：US13220852

申请日：2011-08-30

Applicant: Ming-Town Lee ,  Yu-Cheng Chang ,  Wei-Yi Tseng

Inventor： Ming-Town Lee ,  Yu-Cheng Chang ,  Wei-Yi Tseng

IPC: G08B13/14

CPC classification number: G06K19/07798

Abstract: An electronic seal includes a radio frequency identification apparatus, an antenna assembly and an impedance matching circuit. The radio frequency identification apparatus includes at least two radio frequency identification units each for providing a specific code for identification. The antenna assembly is electrically connected to the radio frequency identification units. The antenna assembly is used to receive an electromagnetic signal for identification to excite the radio frequency identification units to transmit the specific codes through the antenna assembly. The impedance matching circuit is provided between the radio frequency identification units and the antenna assembly for adjusting the impedance matching of the radio frequency identification units to the antenna assembly, thus adjusting excitation powers and feedback powers of the specific codes from the radio frequency identification units through the antenna assembly.

Abstract translation: 电子密封件包括射频识别装置，天线组件和阻抗匹配电路。 射频识别装置包括至少两个用于提供用于识别的特定码的射频识别单元。 天线组件电连接到射频识别单元。 天线组件用于接收用于识别的电磁信号，以激励射频识别单元通过天线组件发送特定代码。 阻抗匹配电路设置在射频识别单元和天线组件之间，用于调整射频识别单元与天线组件的阻抗匹配，从而从射频识别单元调整特定码的激励功率和反馈功率， 天线组件。

公开(公告)号：US08398290B2

公开(公告)日：2013-03-19

申请号：US13086849

申请日：2011-04-14

Applicant: Yu-Cheng Chang

Inventor： Yu-Cheng Chang

IPC: F21V7/04

CPC classification number: H04N1/02885 ,  G02B6/002 ,  G02B6/0035 ,  G02B6/0046 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/008 ,  H04N1/02825 ,  H04N1/02835 ,  H04N1/02865

Abstract: A light guide module of a scanning apparatus includes plural side-emitting light emitting diodes and a light-guiding post, which are disposed on a circuit board. The light-guiding post has plural reflective structures corresponding to respective side-emitting light emitting diodes for receiving light beams from respective side-emitting light emitting diodes. A spacing interval between two of the side-emitting light emitting diodes at a middle portion of the circuit board is greater than a spacing interval between two of the side-emitting light emitting diodes at a side of the circuit board.

Abstract translation: 扫描装置的导光模块包括设置在电路板上的多个侧面发光发光二极管和导光柱。 导光柱具有对应于用于接收来自各个侧面发光二极管的光束的各个侧面发光二极管的多个反射结构。 在电路板的中间部分的两个侧面发光发光二极管之间的间隔距离大于电路板一侧的两个侧面发光发光二极管之间的间隔。

公开(公告)号：US20120119975A1

公开(公告)日：2012-05-17

申请号：US12947306

申请日：2010-11-16

Applicant: Ming-Town Lee ,  Yu-Cheng Chang

Inventor： Ming-Town Lee ,  Yu-Cheng Chang

IPC: H01Q1/50 ,  H01Q17/00

CPC classification number: H01Q1/2208 ,  Y10T29/49018

Abstract: A multi-secured RFID (Radio Frequency Identification) electronic seal includes a bolt, a bolt pedestal and a RFID system. The bolt has a male bolt portion with an electrical connecting point. The bolt pedestal has a female pedestal portion with several nodes to electrically connect with the electrical connecting point to provide plural selections of connecting and disconnecting. The RFID system includes a RFID chip and a transmission conductor embedded in the bolt, and an antenna installed on the bolt pedestal. When the bolt and the bolt pedestal is securely locked together, whether the RFID chip is electrically connects to the antenna depends on if the electrical connecting point connects a preset node, so that a RFID signal may be selectively transmitted by the RFID chip through the antenna.

Abstract translation: 多重RFID（射频识别）电子密封件包括螺栓，螺栓座和RFID系统。 螺栓具有带有电连接点的阳螺栓部分。 螺栓座具有一个带有几个节点的母基座部分，以与电连接点电连接，以提供多种连接和断开选择。 RFID系统包括嵌入在螺栓中的RFID芯片和传输导体，以及安装在螺栓座上的天线。 当螺栓和螺栓基座牢固地锁定在一起时，RFID芯片是否与天线电连接取决于电连接点是否连接预置节点，以便RFID芯片可以通过天线选择性地传输 。

公开(公告)号：US07939950B2

公开(公告)日：2011-05-10

申请号：US12269112

申请日：2008-11-12

Applicant: Cheng-Ting Wu ,  I-Cheng Lu ,  Yu-Cheng Chang ,  Tsu-Ting Wang

Inventor： Cheng-Ting Wu ,  I-Cheng Lu ,  Yu-Cheng Chang ,  Tsu-Ting Wang

IPC: H01L23/34 ,  H01L23/48

CPC classification number: H01L23/5385 ,  H01L23/13 ,  H01L23/3128 ,  H01L24/48 ,  H01L24/73 ,  H01L25/03 ,  H01L2224/06135 ,  H01L2224/06136 ,  H01L2224/32145 ,  H01L2224/32225 ,  H01L2224/48225 ,  H01L2224/48227 ,  H01L2224/4824 ,  H01L2224/73215 ,  H01L2224/73265 ,  H01L2225/06558 ,  H01L2924/00014 ,  H01L2924/15311 ,  H01L2924/19107 ,  H01L2924/00012 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/45015 ,  H01L2924/207

Abstract: A chip package structure is provided. The chip package structure comprises a first substrate, a second substrate and a plurality of chips. Therein, one of the chips is connected to the first substrate and electrically connected to the first substrate through a via hole of the first substrate. Thereby, the second substrate does not need the via hole for electrical connection of chips and thus, the surface thereof is adapted to remain intact to allow for the disposition of conductive balls throughout the surface.

Abstract translation: 提供了芯片封装结构。 芯片封装结构包括第一衬底，第二衬底和多个芯片。 其中，一个芯片连接到第一基板，并通过第一基板的通孔与第一基板电连接。 因此，第二基板不需要用于芯片电连接的通孔，因此，其表面适于保持完整，以允许在整个表面上布置导电球。