公开(公告)号：US20150212164A1

公开(公告)日：2015-07-30

申请号：US14166929

申请日：2014-01-29

Applicant: Prolific Technology Inc.

Inventor： Chih-Shiun Lu

IPC: G01R33/00

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

Abstract: According to one exemplary embodiment, a system of detecting magnetic field comprises a magnetic impedance element surrounded by a detection coil, a stimulus unit generates pulse signal of programmable rise/fall time to drive the magnetic impedance element, and a signal detection module detects signal on the detection coil, wherein the signal detection module includes a buffer unit having adjustable bandwidth shapes output signal of the detection coil, a signal amplify unit includes a sample and hold circuit and a chopping programmable gain amplifier to amplify buffered signal from the buffer unit, a signal processing unit processes amplified signal from the signal amplify unit by applying selectable algorithm to output detection result, and a control unit 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: 根据一个示例性实施例，检测磁场的系统包括由检测线圈包围的磁阻抗元件，刺激单元产生可编程上升/下降时间的脉冲信号以驱动磁阻抗元件，并且信号检测模块检测信号 检测线圈，其中所述信号检测模块包括具有可调节带宽形状的所述检测线圈的输出信号的缓冲单元，信号放大单元包括采样保持电路和斩波可编程增益放大器，用于放大来自所述缓冲单元的缓冲信号， 信号处理单元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，并且控制单元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的控制参数 处理单元。

公开(公告)号：US20040002314A1

公开(公告)日：2004-01-01

申请号：US10418497

申请日：2003-04-18

Applicant: Prolific Technology, Inc.

Inventor： Tsung Hsien Tsai ,  Chia-Yin Yang

IPC: H04B001/06

CPC classification number: H04M1/72527 ,  H04M1/6505 ,  H04M1/72558

Abstract: An integrating apparatus is provided, which includes a power supply for providing a power to be the main power of the integrating apparatus, a controller connected electrically with the power supply so as to control the operation of the integrating apparatus, a storage device connected electrically with the controller for storing a data, and at least a transmitting interface connected with at least a 3C equipment so that the 3C equipment transmits the data through the transmitting interface.

Abstract translation: 提供一种积分装置，其包括用于提供作为积分装置的主电源的电力的电源，与电源电连接以控制积分装置的操作的控制器，与 用于存储数据的控制器，以及至少与至少3C设备连接的发送接口，使得3C设备通过发送接口发送数据。

公开(公告)号：US20240241852A1

公开(公告)日：2024-07-18

申请号：US18541502

申请日：2023-12-15

Applicant: Prolific Technology INC.

Inventor： Shun-Liang Yang ,  Chiun-Shiu Chen ,  Chih-Chin Yang

IPC: G06F13/42

CPC classification number: G06F13/4282 ,  G06F2213/0016

Abstract: A serial communication bus system with dynamic address assignment and its control method are provided in this invention. The system allows the master device to directly assign device addresses to slave devices without the need for additional signals. This assignment is determined by whether the slave device returns a confirmation (ACK) signal, enabling the next address allocation. Slave devices can also obtain unique device addresses through this allocation process. Therefore, with this invention's serial communication bus system and control method featuring dynamic address assignment, existing I2C bus signals can dynamically assign device addresses, facilitating the identification of a plurality of slave devices and preventing address conflicts among them, thereby improving communication transmission.

公开(公告)号：US20220303385A1

公开(公告)日：2022-09-22

申请号：US17692182

申请日：2022-03-11

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Hsing-Yun Hsieh ,  Ting-Ta Chien ,  Ren-Yuan Yu

IPC: H04M1/72409 ,  H04W4/48

Abstract: An in-vehicle entertainment system having functionality of operation interface switchable is disclosed. The system comprises an in-vehicle host electronic device and a hub having a host-to-host transmission function. After at least two mobile electronic devices are coupled to the hub, the in-vehicle host electronic device firstly prioritizes a communication order between the two mobile electronic devices, and then lets a display unit show an operation interface (like CarPlay operation interface) corresponding to the mobile electronic device that is prioritized with a first ranked communication order. Moreover, in case of a peripheral electronic device being coupled to the hub as well as the display unit being showing the operation interface, the in-vehicle host electronic device is allowed to access a peripheral electronic device through the hub.

公开(公告)号：US11221605B2

公开(公告)日：2022-01-11

申请号：US16796072

申请日：2020-02-20

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Chia Chang Hsu ,  Chih Feng Huang ,  Ching-Te Chen ,  Ren-Yuan Yu

IPC: G05B19/042 ,  F04D25/08 ,  G05D13/62

Abstract: An intelligent fan control system with interface compatibility is provided. The intelligent fan control system can identify and control fans one-to-one connected to fan slots, and each fan slot includes four pins. The intelligent fan control system includes a bus; an I2C signal switching unit including SDA outputs one-to-one connected to third pin of the fan slots via the bus; an I2C signal switching unit including SCL outputs one-to-one connected to fourth pins of the fan slots via the bus; voltage control units one-to-one corresponding to the fan slots, and having output terminals one-to-one connected to second pins of the fan slots; connection line sets, and each connection line set including four connection lines and connected to the corresponding fan slot; a control board comprising port sets, and can control and switch the I2C signal switching unit to the fan slots in sequence, to transmit the corresponding I2C signal.

公开(公告)号：US11118591B2

公开(公告)日：2021-09-14

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 ,  F04D27/00 ,  F04D19/00

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：US20210019274A1

公开(公告)日：2021-01-21

申请号：US17039850

申请日：2020-09-30

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Tien-Wei YU ,  Cheng-Sheng CHAN ,  Chiun-Shiu CHEN

IPC: G06F13/40 ,  G06F13/42

Abstract: A USB bridge including a first USB port, a second USB port, a microcontroller, and a host-to-host function circuit is provided. The first USB port is coupled to the first USB host. The second USB port is coupled to the second USB host. The microcontroller is coupled to the first and the second USB ports. The microcontroller communicates with the first and the second USB hosts via the first and the second USB ports, such that the first and the second USB hosts respectively simulate the USB ports of the first and the second USB hosts as virtual COM ports. The host-to-host function circuit is coupled to the microcontroller and configured to perform a host-to-host transmission function by simulating the USB ports as virtual COM ports.

公开(公告)号：US10725521B2

公开(公告)日：2020-07-28

申请号：US16182742

申请日：2018-11-07

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Chia-Chang Hsu

IPC: G06F1/32 ,  G06F1/3206 ,  G01R19/165 ,  G01K1/14 ,  G01K3/00 ,  H02H1/00

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：US10372652B2

公开(公告)日：2019-08-06

申请号：US16002625

申请日：2018-06-07

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Tien-Wei Yu ,  Cheng-Sheng Chan ,  Chun-Hsu Chen ,  Ren-Jie Duan

IPC: G06F13/40 ,  G06F13/42

Abstract: A USB hub includes an upstream port; a first USB device control unit for performing packet format conversion; an FIFO circuit for storing data outputted from the first host; a second USB device control unit for performing packet format conversion; and a plurality of downstream ports. When any one of the downstream ports is coupled to the mobile device, if the first host commands the mobile device to switch to a host role from a device role, the mobile device temporarily disconnects from the USB hub, and the first host commands the USB hub to change an internal routing path. After the mobile device switches to the host role, the first host still performs the host role, and the first USB device control unit performs the device role; the mobile device performs the host role, and the second USB device control unit performs the device role.

公开(公告)号：US10338652B2

公开(公告)日：2019-07-02

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: 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.