公开(公告)号：US20220278615A1

公开(公告)日：2022-09-01

申请号：US17631688

申请日：2020-04-20

申请人： SG MICRO CORP

发明人： Jianchun Chen ,  Shoubao Yan ,  Xiang Yu

IPC分类号： H02M3/157 ,  H02M1/44 ,  H02M1/08

摘要： Disclosed is a switching power supply circuit and a control circuit and a control method thereof. The control circuit comprises a control unit and a driving unit. The control unit controls the driving unit to provide a driving signal with different driving strengths according to a comparison result between a switching voltage and a preset voltage, so as to adjust a speed of turning the power switch off. By controlling the driving strength of the driving signal, a rising rate of the switching voltage can be improved, a spike of the switching voltage can be reduced, various components in the circuit can be protected from being damaged by the spike, and service life and reliability of the circuit can be improved.

公开(公告)号：US09347688B2

公开(公告)日：2016-05-24

申请号：US13445795

申请日：2012-04-12

申请人： Thomas Joseph Womack ,  Richard Hiram Womack

发明人： Thomas Joseph Womack ,  Richard Hiram Womack

IPC分类号： F24J2/00 ,  F24J2/38 ,  F24J2/54 ,  G02B7/182 ,  F24J2/12 ,  F24J2/16

CPC分类号： F24S50/20 ,  F24S23/71 ,  F24S23/77 ,  F24S30/45 ,  F24S2030/132 ,  F24S2030/136 ,  G02B7/1827 ,  Y02E10/47

摘要： A concentrating solar collector that includes a target, a plurality of mirror assemblies, and a master tracking assembly that controls the mirror assemblies is disclosed. The mirror assemblies are fixed at a plurality of distinct locations with respect to the target, each mirror assembly includes a moveable mirror and a tracking assembly. Each tracking assembly includes a target member, a sun member, and a tracking actuator. The target member is fixed relative to the target such that the target member points at the target. The sun member is moveable relative to the target such that when the sun member points to the sun, light from the sun is reflected onto the target. The master tracking assembly moves each of the sun members such that the sun members simultaneously point at the sun. The tracking actuators are mechanical devices that are coupled to the master tracking assembly by a mechanical linkage.

摘要翻译： 公开了一种集中式太阳能收集器，其包括目标，多个反射镜组件和控制反射镜组件的主跟踪组件。 反射镜组件相对于目标固定在多个不同的位置，每个反射镜组件包括可移动的反射镜和跟踪组件。 每个跟踪组件包括目标构件，太阳构件和跟踪致动器。 目标成员相对于目标固定，使得目标成员指向目标。 太阳构件相对于目标物可移动，使得当太阳构件指向太阳时，来自太阳的光被反射到目标上。 主跟踪组件移动每个太阳构件，使得太阳构件同时指向太阳。 跟踪致动器是通过机械连杆联接到主跟踪组件的机械装置。

公开(公告)号：US07545847B2

公开(公告)日：2009-06-09

申请号：US11773963

申请日：2007-07-06

申请人： Chi-Tung Chang ,  Chih-Hao Lai ,  Chieh-Tsao Hwang

发明人： Chi-Tung Chang ,  Chih-Hao Lai ,  Chieh-Tsao Hwang

IPC分类号： H04B1/38

CPC分类号： H03L7/183 ,  H03B21/025

摘要： A frequency synthesizer applied to a frequency hopping system includes a voltage controlled oscillator (VCO), a phase lock loop (PLL) system, a second frequency divider, a first SSB mixer, a second SSB mixer, and a multiplexer. The VCO generates an oscillating frequency. The PLL system includes a first frequency divider and divides the oscillating frequency by 10 to generate a first dividing signal. The second frequency divider divides the oscillating frequency by 2 to generate a second dividing signal and further divides the second dividing signal by 2 to generate a third dividing signal. The first SSB mixer mixes frequencies of the second and third dividing signals to generate a first mixing signal. The second SSB mixer mixes frequencies of the first mixing signal and the first dividing signal to generate a second mixing signal. The Multiplexer determines to output the first mixing signal or the second mixing signal.

摘要翻译： 应用于跳频系统的频率合成器包括压控振荡器（VCO），锁相环（PLL）系统，第二分频器，第一SSB混频器，第二SSB混频器和多路复用器。 VCO产生振荡频率。 PLL系统包括第一分频器，并将振荡频率除以10以产生第一分频信号。 第二分频器将振荡频率除以2以产生第二分频信号，并将第二分频信号除以2，以产生第三分频信号。 第一SSB混频器混合第二和第三分频信号的频率以产生第一混频信号。 第二SSB混频器混合第一混频信号和第一分频信号的频率以产生第二混频信号。 多路复用器确定输出第一混频信号或第二混频信号。

公开(公告)号：US07401195B2

公开(公告)日：2008-07-15

申请号：US10966801

申请日：2004-10-18

申请人： Chi-Tung Chang ,  Shih-Hsieng Yang ,  Hung-Chou Tsai ,  Ching-Wen Wang

发明人： Chi-Tung Chang ,  Shih-Hsieng Yang ,  Hung-Chou Tsai ,  Ching-Wen Wang

IPC分类号： G06F12/14

CPC分类号： G06F12/1458 ,  G06F21/6227 ,  G06F2221/2141

摘要： A portable data storage device includes a control unit coupled via a predetermined interface with a computer having an operating system with user authority limits, and a memory divided into a segment I for storing related applications, a public segment II for temporarily storing instructions and data, and a hidden segment III for saving client data. In a method of accessing data via the portable data storage device, when the computer is to write data into or read data from the segment III, the data to be written or read is first temporarily stored in the segment II, and specific read or write instructions for a read/write level application interface are written into the segment II by the applications in the segment I and executed, so as to complete data exchange and access between the portable data storage device and the computer.

摘要翻译： 便携式数据存储装置包括经由预定接口与具有用户权限限制的操作系统的计算机耦合的控制单元，以及被划分成用于存储相关应用的段I的存储器，用于临时存储指令和数据的公共段II， 以及用于保存客户端数据的隐藏段III。 在通过便携式数据存储装置访问数据的方法中，当计算机将数据写入或从数据段III读取数据时，要写入或读取的数据首先临时存储在段II中，并且进行特定的读或写 读/写级应用接口的指令由段I中的应用程序写入段II，并执行，以便完成便携式数据存储设备与计算机之间的数据交换和访问。

公开(公告)号：US07285023B1

公开(公告)日：2007-10-23

申请号：US11714795

申请日：2007-03-07

申请人： Chi-Tung Chang ,  Chi-Lei Kao ,  Shih-Min Lan

发明人： Chi-Tung Chang ,  Chi-Lei Kao ,  Shih-Min Lan

IPC分类号： H01R25/00

CPC分类号： H01R25/00 ,  Y10S439/945

摘要： An ExpressCard device is applied to a computer system, and comprises a USB connector, an ExpressCard interface connector, and a control unit. The USB connector is used to connect with a USB interface provided by the computer system, the ExpressCard interface connector is used to connect with an ExpressCard interface provided by the computer system, and the control unit is used to transmit data to the computer system via either the ExpressCard interface connector or the USB connector at the same time. The ExpressCard interface connector is based on the USB standard so that the ExpressCard interface connector or the USB connector is connected with the control unit via a same USB signal pin. Thereby, the present invention allows a single ExpressCard device without an adapter to be applied to the computer system with different connection interfaces.

摘要翻译： ExpressCard设备应用于计算机系统，包括USB连接器，ExpressCard接口连接器和控制单元。 USB连接器用于与计算机系统提供的USB接口连接，ExpressCard接口连接器用于与计算机系统提供的ExpressCard接口连接，控制单元用于通过以下任一方式将数据传输到计算机系统： ExpressCard接口连接器或USB连接器。 ExpressCard接口连接器基于USB标准，因此ExpressCard接口连接器或USB连接器通过相同的USB信号引脚与控制单元连接。 因此，本发明允许将具有适配器的单个ExpressCard设备应用于具有不同连接接口的计算机系统。

公开(公告)号：US20070220087A1

公开(公告)日：2007-09-20

申请号：US11408961

申请日：2006-04-24

申请人： Chi-Tung Chang ,  Wen-Chih Chen

发明人： Chi-Tung Chang ,  Wen-Chih Chen

IPC分类号： G06F15/16

CPC分类号： G06F3/038 ,  G06F3/023

摘要： A system for the sharing of electronic peripheral equipments, wherein the system allows various industry standard electronic devices to share at least one electronic peripheral equipment. The aforesaid system comprises: a main server and a peripherals sharing interface that is installed in the main server, wherein the peripherals sharing interface has at least one signal input port and one signal output port, and the signal input port comprises at least a video input port, a mouse port and a keyboard port.

摘要翻译： 一种用于共享电子周边设备的系统，其中系统允许各种工业标准电子设备共享至少一个电子外围设备。 上述系统包括：安装在主服务器中的主服务器和外围设备共享接口，其中所述外围设备共享接口具有至少一个信号输入端口和一个信号输出端口，并且所述信号输入端口至少包括视频输入端 端口，鼠标端口以及键盘端口。

公开(公告)号：US20060238942A1

公开(公告)日：2006-10-26

申请号：US11113801

申请日：2005-04-25

申请人： Chi-Tung Chang ,  Ricky Kao

发明人： Chi-Tung Chang ,  Ricky Kao

IPC分类号： H02H3/08

CPC分类号： H01R12/721

摘要： A connector includes a base board having at least four contacts provided on each of two opposite sides thereof. The contacts on the second side of the base board are arranged in the reverse order relative to the contacts on the first side of the base board, and some of the contacts on the first and the second side of the base board are electrically connected to one another to enable the connector to plug in and electrically connect to a corresponding female connector.

摘要翻译： 连接器包括基板，其具有设置在其两个相对侧中的每一个上的至少四个触点。 基板的第二面上的触点相对于基板的第一侧上的触点以相反的顺序布置，并且基板的第一和第二侧上的一些触点电连接到一个 另一个使得连接器能够插入并电连接到相应的母连接器。

公开(公告)号：US06980135B2

公开(公告)日：2005-12-27

申请号：US10042331

申请日：2002-01-11

申请人： Chi-Tung Chang ,  Don Chang

发明人： Chi-Tung Chang ,  Don Chang

IPC分类号： H03M11/00 ,  H03M11/20

CPC分类号： H03M11/20 ,  H03M11/003

摘要： A logic circuit uses hardware to process keyboard scanning, more especially, a microprocessing system inputs the signal through a pressed key into a control circuit for conducting operation; since the column input end has electric resistance with higher driving ability than that of the row output/input end, a higher electric potential status is thereby obtained and conducted with the circuit through a pressed key to make the high and the lower electric potentials approach in accordance with each other and generate electric potential change, or through a converting method of automatically driving electric potential, the innovative effect of the present invention is achieved.

摘要翻译： 逻辑电路使用硬件来处理键盘扫描，更具体地说，微处理系统通过按下的键将信号输入到用于进行操作的控制电路中; 由于列输入端具有比行输出/输入端更高的驱动能力的电阻，所以通过按压键使电路获得并进行更高的电位状态，使得高电位和低电位接近 根据彼此产生电位变化，或者通过自动驱动电位的转换方法，实现了本发明的创新效果。

公开(公告)号：US1957321A

公开(公告)日：1934-05-01

申请号：US56014431

申请日：1931-08-29

申请人： MICRO CORP

发明人： CRINER HARRY J ,  CRINER HARRY E

IPC分类号： B26D7/06

CPC分类号： B26D7/0625 ,  Y10T409/304536

公开(公告)号：US20230122458A1

公开(公告)日：2023-04-20

申请号：US17790253

申请日：2020-09-04

申请人： SG MICRO CORP

发明人： Lidi Zhang

IPC分类号： G05F1/575 ,  G05F1/46 ,  G05F1/563 ,  G05F3/26

摘要： Disclosed is a low dropout linear voltage regulator and a control circuit thereof. The control circuit includes an error amplifier and a backflow prevention circuit, which compares an input voltage with an output voltage, to switch a substrate voltage and a voltage at a control terminal of the power transistor to a higher one of the input voltage and the output voltage, thus the power transistor and its parasitic diode can be turned off in time when the output voltage is greater than the input voltage, so as to prevent the power transistor from being damaged by current backflow and improve reliability of the low dropout linear regulator.