公开(公告)号：US09859837B2

公开(公告)日：2018-01-02

申请号：US15367151

申请日：2016-12-01

Applicant: Prolific Technology Inc.

Inventor： Chih-Shih Yang ,  Jia-Jun Liu ,  Wan-Yang Chen

IPC: H02P29/024 ,  H02P29/032

CPC classification number: H02P29/024 ,  H02P29/0241 ,  H02P29/032

Abstract: A negative voltage protection system includes a negative voltage comparison circuit, a signal processing circuit, a driving circuit, a driving output circuit, a power device, and a coil module. When the coil module generates a back electromotive force, the coil module outputs a negative voltage. When an intensity of the negative voltage detected by the negative voltage comparison circuit is greater than a predetermined value, the signal processing circuit generates a control signal to the driving circuit. The driving circuit controls the driving output circuit and the power device to reduce the intensity of the negative voltage according to the control signal.

公开(公告)号：US20170278376A1

公开(公告)日：2017-09-28

申请号：US15468480

申请日：2017-03-24

Applicant: Prolific Technology INC.

Inventor： Yun-Guo LI ,  Ke-Qiang SHEN ,  Yen-Zhi LIN ,  Jia-Zhang XU

IPC: G08B21/18 ,  H04B3/54 ,  H04B3/46

CPC classification number: H04B3/54 ,  H04B3/46

Abstract: A sensor for sensing a usage status of an electrical device and its associated method are disclosed. The sensor is disposed at a near-end of a power line of the electrical device. The sensor provided with a magnetic detector, an analog-to-digital converter and a controller. The magnetic detector is close to the power line to detect a magnetic field change around the power line to correspondingly generate an analog signal. The analog-to-digital converter (ADC) is used to receive the analog signal and convert the analog signal to a digital signal. The controller is used to receive the digital signal and generate an indication signal to accordingly learn at least one of statuses of being turned on and turned off the electrical device.

公开(公告)号：US09588189B2

公开(公告)日：2017-03-07

申请号：US14166929

申请日：2014-01-29

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Chih-Shiun Lu

IPC: G01R33/00 ,  G01R33/04 ,  G01R33/06 ,  G01R33/18

CPC classification number: G01R33/0017 ,  G01R33/04 ,  G01R33/063 ,  G01R33/18

Abstract: A system of detecting magnetic field comprises a magnetic impedance element surrounded by a detection coil, a stimulus unit that generates pulse signal of programmable rise/fall time to drive the magnetic impedance element, and a signal detection module that detects signal on the detection coil, wherein the signal detection module includes a buffer unit having adjustable bandwidth for shaping output signal of the detection coil, a signal amplify unit that includes a sample and hold circuit and a chopping programmable gain amplifier to amplify buffered signal from the buffer unit, a signal processing unit that processes amplified signal from the signal amplify unit by applying a selectable algorithm to output detection result, and a control unit that connects the signal processing unit to generate control parameters of the stimulus unit, the buffer unit, the signal amplify unit, and the signal processing unit.

Abstract translation: 检测磁场的系统包括由检测线圈包围的磁阻抗元件，产生可编程上升/下降时间的脉冲信号以驱动磁阻抗元件的刺激单元，以及检测检测线圈上的信号的信号检测模块， 其中，所述信号检测模块包括具有用于整形所述检测线圈的输出信号的可调节带宽的缓冲单元，包括采样保持电路的信号放大单元和用于放大来自所述缓冲单元的缓冲信号的斩波可编程增益放大器，信号处理 通过应用可选择的算法来输出检测结果来处理来自信号放大单元的放大信号的单元，以及连接信号处理单元以产生刺激单元，缓冲单元，信号放大单元和 信号处理单元。

公开(公告)号：US20160315466A1

公开(公告)日：2016-10-27

申请号：US15131025

申请日：2016-04-17

Applicant: Prolific Technology Inc.

Inventor： Wan-Yang Chen ,  Chih-Shih Yang ,  Jia-Jun Liu

IPC: H02H9/04 ,  G06F1/26 ,  H03K7/08

CPC classification number: G06F1/26 ,  G06F1/28 ,  H03K7/08

Abstract: A high voltage protection system includes a high voltage processing circuit, a pulse width modulation signal outputting circuit, a driving circuit, and a coil module. The high voltage processing circuit is used for receiving and processing a high voltage. The pulse width modulation signal output circuit is coupled to the high voltage processing circuit for generating a pulse width modulation signal. The driving circuit is coupled to the pulse width modulation signal outputting circuit for receiving the pulse width modulation signal and generating a driving voltage accordingly. The coil module is coupled to the driving circuit and is operated according to the driving voltage.

Abstract translation: 高压保护系统包括高压处理电路，脉宽调制信号输出电路，驱动电路和线圈模块。 高电压处理电路用于接收和处理高电压。 脉冲宽度调制信号输出电路与高电压处理电路耦合，产生脉宽调制信号。 驱动电路耦合到脉宽调制信号输出电路，用于接收脉冲宽度调制信号并产生相应的驱动电压。 线圈模块耦合到驱动电路并根据驱动电压进行操作。

公开(公告)号：US20130332556A1

公开(公告)日：2013-12-12

申请号：US13913566

申请日：2013-06-10

Applicant: Prolific Technology INC.

Inventor： CHIUN-SHIU CHEN ,  WEN-JEN WU

IPC: H04L12/801

CPC classification number: H04L47/10 ,  G06F3/1454 ,  G06F9/452 ,  G09G5/005 ,  G09G2340/0407 ,  G09G2340/0435 ,  H04L65/80 ,  H04L67/303

Abstract: A transmission system for transmitting data between a controlling terminal and a controlled terminal is provided. The transmission system includes a first electronic apparatus, a second electronic apparatus and a transmission apparatus. The first and second electronic apparatus comprise first and second application programs, respectively. The transmission apparatus, coupled to the first and second electronic apparatus via first and second interfaces, respectively, determine one of the first and second electronic apparatuses as the controlling terminal and the other as the controlled terminal according to coupling sequences of the first and second electronic apparatuses. The first and second application programs determine an initial transmission profile according to respective feature information of the first and second electronic apparatuses detected, and continue to detect respective transmission utilization rates with the transmission apparatus and utilize the respective transmission utilization rates as reference for whether to dynamically adjust subsequent transmission profiles.

Abstract translation: 提供了一种用于在控制终端和受控终端之间传输数据的传输系统。 传输系统包括第一电子设备，第二电子设备和传输设备。 第一和第二电子设备分别包括第一和第二应用程序。 分别经由第一和第二接口耦合到第一和第二电子设备的发送设备根据第一和第二电子设备的耦合顺序分别确定第一和第二电子设备中的一个作为控制终端，另一个作为受控终端 设备。 第一和第二应用程序根据检测到的第一和第二电子设备的相应特征信息来确定初始传输简档，并且继续检测与传输设备的各个传输利用率，并且利用各自的传输利用率作为动态的参考 调整后续传输配置文件。

公开(公告)号：US20130181957A1

公开(公告)日：2013-07-18

申请号：US13741499

申请日：2013-01-15

Applicant: Prolific Technology Inc.

Inventor： CHIUN-SHIU CHEN

IPC: G09G5/00

CPC classification number: G09G5/00 ,  G06F3/1454 ,  G06F13/105 ,  G09G2354/00 ,  H04W48/18

Abstract: A transmission system includes a transmission apparatus, a first electronic device and a second electronic device electrically connected to one another. The first electronic includes a composite driver, a first application program, a first display image and a virtual display device. The first composite driver emulates the virtual display device according to the first display image. The second electronic device includes a second application program and a second display image. The transmission interface includes a transmission controller and two transmission interfaces. The two transmission interfaces are connected to the first electronic device and the second electronic device, respectively. When the first application program transmits output data corresponding to the virtual display device via the two transmission interfaces and the transmission controller to the second application program, a virtual display image corresponding to the first display image is presented on the second display image.

Abstract translation: 传输系统包括彼此电连接的传输设备，第一电子设备和第二电子设备。 第一电子包括复合驱动器，第一应用程序，第一显示图像和虚拟显示装置。 第一复合驱动器根据第一显示图像模拟虚拟显示设备。 第二电子设备包括第二应用程序和第二显示图像。 传输接口包括传输控制器和两个传输接口。 两个传输接口分别连接到第一电子设备和第二电子设备。 当第一应用程序经由两个传输接口和传输控制器将对应于虚拟显示设备的输出数据发送到第二应用程序时，在第二显示图像上呈现与第一显示图像相对应的虚拟显示图像。