公开(公告)号：US20200263696A1

公开(公告)日：2020-08-20

申请号：US16796116

申请日：2020-02-20

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Chia Chang HSU ,  Chih Feng HUANG ,  Ching-Te CHEN ,  Ren-Yuan YU

IPC: F04D25/06 ,  F04D19/00 ,  F04D27/00

Abstract: An intelligent fan with interface compatibility is provided. The intelligent fan includes a fan body having a fan and a motor, a driving circuit, a tachometer, an output connector including a first pin, a second pin, a third pin and a fourth pin connected to a fan connector of a motherboard, and a microcontroller connected to the driving circuit and the tachometer, and connected to the motherboard via the first, second, third and fourth pins. When the intelligent fan is powered on, the microcontroller sets the third and fourth pins as input pins for receiving an output signal of the fan connector of the motherboard, and the microcontroller performs an I2C signal analysis on the output signal. When the I2C signal analysis succeeds, the intelligent fan is set in an I2C mode, and when the I2C signal analysis fails, the intelligent fan is set in a PWM mode.

公开(公告)号：US20190227615A1

公开(公告)日：2019-07-25

申请号：US16182742

申请日：2018-11-07

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： CHIA-CHANG HSU

IPC: G06F1/32 ,  G01R19/165 ,  G01K1/14

Abstract: The invention discloses a power saving device capable of automatically sensing standby current, which is used in a power device such as a power outlet or other power supply devices for giving the power device ability of electricity saving. When the power saving device normally works, a threshold current setting unit of a controlling and processing module is configured to automatically calculate a threshold current based on current signals sensed by a current detecting unit under different operation modes of at least one electrical device electrically connected to the power device. Moreover, when at least one standby current sensed from the electrical device is determined to be lower than the threshold current, the controlling and processing module immediately switches a switch unit to an open-circuit state, thereby causing the electrical device unable to receive electricity from the power device. Consequently, the power device exhibits the ability of power saving.

公开(公告)号：US10082543B2

公开(公告)日：2018-09-25

申请号：US15498624

申请日：2017-04-27

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Yun-Kuo Lee ,  Chia-Chang Hsu ,  Ren-Yuan Yu ,  Ching-Te Chen ,  Ke-Ciang Shen

IPC: G01N27/416 ,  G01R31/36 ,  G01R33/00

CPC classification number: G01R31/3648 ,  G01R15/20 ,  G01R31/389 ,  G01R33/0017 ,  G01R33/007 ,  G01R33/0076

Abstract: In view of drivers cannot equip their vehicles with conventional intelligent battery monitoring system by themselves because the wire connections of the intelligent battery monitoring system are complex, the present invention particularly discloses a non-contact intelligent battery sensing system showing the advantages of simple circuit framework and low manufacturing cost. Since the non-contact intelligent battery sensing system only comprises a magnetic field sensor and a sensor controlling module, it is very easy for the drivers to equip their vehicles with this non-contact intelligent battery sensing system by themselves. To apply the non-contact intelligent battery sensing system, the driver just needs to firstly dispose the magnetic field sensor at one position near to a power line of a battery to be sensed, and then install a sensor controlling application program in his smart phones. Apparently, the non-contact intelligent battery sensing system further shows the advantage of easy to be installed.

公开(公告)号：US20180060260A1

公开(公告)日：2018-03-01

申请号：US15245174

申请日：2016-08-24

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： TIEN-WEI YU ,  CHUN-SHIU CHEN

IPC: G06F13/38 ,  G06F13/42

CPC classification number: G06F13/385 ,  G06F13/4282

Abstract: The present invention provides a method and a device capable of automatically identifying host operating system. For the conventionally-used USB devices or USB bridge interfaces cannot effectively identify all kinds of Operation Systems (OS) from an electronic device, the present invention proposes a novel USB device consisting of: a USB physical interface, a central processing unit, and at least one peripheral interface controller; wherein the central processing unit is particularly embedded with an OS identifying library. Moreover, the present invention simultaneously proposes an automatic OS identifying method, which particularly consists of a plurality of OS identifying steps designed based on conventional USB enumeration procedures. Thus, when a specific OS of a host device treats this novel USB device with a USB enumeration, the OS identifying library is able to detect the kind of the specific OS installed in the host device, according to the plurality of OS identifying steps.

公开(公告)号：US20170023428A1

公开(公告)日：2017-01-26

申请号：US15216698

申请日：2016-07-22

Applicant: PROLIFIC TECHNOLOGY INC. ,  UniSense Technology Co., Ltd

Inventor： Chiung-An Chen ,  Yun-Kuo Lee ,  Chih-Yuan Hung ,  Jia-Chun Huang ,  Yeow-Chin Chen ,  Shu-Fan Wu

IPC: G01L9/02

CPC classification number: G01L9/025 ,  G01L9/0052

Abstract: An impedance sensor and an electronic apparatus using the same are provided. The impedance sensor includes an impedance-bridge circuit, a compensation circuit, and a signal processing circuit. The impedance-bridge circuit has an input side and an output side, and configured to generate a first impedance variation in response to a physical pressure. The compensation circuit is coupled to the input side of the impedance-bridge circuit in parallel, and configured to generate a second impedance variation in response to an environment temperature. The signal processing circuit respectively detects the first and the second impedance variations, and accordingly generates a first sensing signal indicating the first impedance variation and a second sensing signal indicating the second impedance variation, so as to compensate a temperature shift part of the first sensing signal by the second sensing signal and accordingly generate a pressure detection signal.

Abstract translation: 提供了阻抗传感器和使用该阻抗传感器的电子装置。 阻抗传感器包括阻抗桥电路，补偿电路和信号处理电路。 阻抗桥电路具有输入侧和输出侧，并且被配置为响应于物理压力产生第一阻抗变化。 补偿电路并联耦合到阻抗桥电路的输入侧，并且被配置为响应于环境温度而产生第二阻抗变化。 信号处理电路分别检测第一和第二阻抗变化，并且因此产生指示第一阻抗变化的第一感测信号和指示第二阻抗变化的第二感测信号，以补偿第一感测信号的温度偏移部分 并通过第二检测信号产生压力检测信号。

公开(公告)号：US09210086B2

公开(公告)日：2015-12-08

申请号：US13913566

申请日：2013-06-10

Applicant: Prolific Technology INC.

Inventor： Chiun-Shiu Chen ,  Wen-Jen Wu

IPC: G06F15/16 ,  H04L12/801 ,  G06F3/14 ,  G06F9/44 ,  H04L29/08 ,  H04L29/06 ,  G09G5/00

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配置文件，并且继续检测与传输设备的各个传输利用率，并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：US20020024399A1

公开(公告)日：2002-02-28

申请号：US09925424

申请日：2001-08-10

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Chia-Chang Hsu ,  Chih-Shih Yang

IPC: H03K007/08

CPC classification number: H03K7/08 ,  H02P6/08

Abstract: A DC brushless motor operation speed control method is disclosed. First, a linearly voltage dependent current source is used to charge a capacitor and the terminal voltage of the capacitor is coupled to a linearly voltage dependent base frequency level detector. When the output voltage of the capacitor reaches the base frequency reference voltage, the signal output from the base frequency level detector will make the capacitor discharge, outputting a series of base frequency triangular waves. Under different supply voltages, all the generated base frequency triangular waves have the same cycle time. The base frequency triangular waves are transmitted to a speed control comparator. Through pulse width modulation, the speed control reference voltage adjusts the output pulse width of the comparator and thereby controls the speed of the motor.

Abstract translation: 公开了一种直流无刷电机运行速度控制方法。 首先，使用线性电压相关电流源对电容器充电，并且电容器的端子电压耦合到线性电压依赖的基极频率电平检测器。 当电容器的输出电压达到基准频率参考电压时，从基频电平检测器输出的信号将使电容放电，输出一系列基频三角波。 在不同的电源电压下，所有产生的基频三角波具有相同的周期时间。 基频三角波被传送到速度控制比较器。 通过脉宽调制，速度控制参考电压调节比较器的输出脉冲宽度，从而控制电机的转速。

公开(公告)号：US11566629B2

公开(公告)日：2023-01-31

申请号：US16751070

申请日：2020-01-23

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Chia Chang Hsu ,  Chih Feng Huang ,  Wei Shu Hsu

IPC: F04D27/00 ,  G01P3/44

Abstract: A device for real-time self-diagnosis of a fan and a method are disclosed for detecting whether a fan body encounters an environment abnormal situation. The fan body includes a motor, a fan and a tachometer. The fan body further includes a microcontroller for receiving a speed signal of the tachometer and calculating a speed value of the fan, and detecting a current value of the motor during operation. The microcontroller can control the motor to drive the fan according to a monitoring period and a control signal transmitted from the control board, and can calculate a speed change amount according to the monitoring period, and can calculate a current change amount. When the speed change amount exceeds a speed change threshold and the current change amount exceeds a current change threshold for a period of time, the microcontroller generates an environmental anomaly signal.

公开(公告)号：US20220272189A1

公开(公告)日：2022-08-25

申请号：US17704571

申请日：2022-03-25

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Ting-Ta CHIEN ,  Hsing-Yun HSIEH ,  Ren-Yuan YU

IPC: H04M1/72409 ,  H04W4/48

Abstract: A system for achieving display of CarPlay operation interface on display screens of multiple electronic devices is disclosed. The system comprises a first electronic device and a second electronic device, wherein the first electronic device has functionality of Apple CarPlay because of including an Apple Mfi authentication chip. Particularly, a CarPlay executor comprising a principal execution unit and a plurality of sub-execution units is provided in the first electronic device. As such, after a second mobile electronic device is in communication with a second electronic device that is coupled to the first electronic device, one sub-execution unit is authorized by the Apple Mfi authentication chip so as to let a CarPlay operation interface be shown on a display screen of the second electronic device, thereby achieving display of CarPlay operation interface on display screens of multiple electronic devices.

公开(公告)号：US20200232471A1

公开(公告)日：2020-07-23

申请号：US16751070

申请日：2020-01-23

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： CHIA CHANG HSU ,  CHIH FENG HUANG ,  WEI SHU HSU

IPC: F04D27/00 ,  G01P3/44

Abstract: A device for real-time self-diagnosis of a fan and a method are disclosed for detecting whether a fan body encounters an environment abnormal situation. The fan body includes a motor, a fan and a tachometer. The fan body further includes a microcontroller for receiving a speed signal of the tachometer and calculating a speed value of the fan, and detecting a current value of the motor during operation. The microcontroller can control the motor to drive the fan according to a monitoring period and a control signal transmitted from the control board, and can calculate a speed change amount according to the monitoring period, and can calculate a current change amount. When the speed change amount exceeds a speed change threshold and the current change amount exceeds a current change threshold for a period of time, the microcontroller generates an environmental anomaly signal.