Mediatek Corporation

Industrial Technology Research Institute

Ali Corporation

Sipix Technology, Inc.

Richtek Technology Corporation

Tsinghua University

E Ink Holdings Inc.

Globalwafers Co., Ltd.

Atomic Energy Council-institute of Nuclear Energy Research

Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan

Chih-Yuan Hsu

Chi-Ming Lee

Chi-Mao Hung

Pei-Lin Tien

Wei-Min Sun

Shuo-Peng Liang

Yan-Liang Wu

Shih-Ming Chen

Hsiao-Lung Cheng

Hsin-Chuan Su

Jui-Chi Wu

Jui-Ming Chang

Chih-Chien Huang

Tzuo-Liang Luo

Charn-Ying Chen

Chin-Chu Sun

Wan-Kun Chang

Pi-Fen Chen

Shih-Chang Liang

Tung-Yi Wang

Hung-I Wang

Andrew Yang Lee

Yu-Yuan Kuo

Po-Hsin Chen

Yu-An Tseng

Yu-Ling Chang

Ta-Yung Yang

Wei-Hsu Chang

Yao-Jen Hsieh

Kuo-Hsing Cheng

Hong-Yi Huang

Chih-Hong Lou

Yuan-Hua Chu

Jen-Ji Wang

Ta-Jen Peng

Peng Yang

Chun-Chin Tu

Ying-Ling Liu

Jia-You Chuang

Chuan-Chang Lee

Chih-Lin Huang

Wei-Sheng Tseng

Wei-Ping Wang

Meng-Feng Lin

Chien-Yuan Lu

Yung-Sheng Chang

Shih-Chiang Chen

Fong-Shen Wong

Jian-Shiang Fang

Chia-Chun Li

Bei-Hua Yang

Guo-Wei Wang

Yun-Bor Lin

Shih-Kuan Chang

Rui-Xiang Wang

Der-Hsing Liou

Chun-Lung Chang

Yu-Shin Wang

A method of producing an epitaxial semiconductor wafer includes measuring one or more epitaxial semiconductor wafers to determine an epitaxial deposition layer profile produced by an epitaxy apparatus. The method also includes polishing a semiconductor wafer using a polishing assembly and measuring the polished semiconductor wafer to determine a surface profile of the polished wafer. The method further includes generating a predicted post-epitaxy surface profile of the polished wafer by comparing the surface profile of the polished wafer and the determined epitaxial deposition layer profile produced by the epitaxy apparatus. The method also includes determining a predicted post-epitaxy parameter based on the predicted post-epitaxy surface profile and adjusting, based on the predicted post-epitaxy parameter, a process condition of the polishing assembly.

Systems and methods for producing epitaxial wafers

A video transmitting circuit and a signal delay compensation method thereof are provided. The video transmitting circuit transmits a specific signal through a first transmission path and a second transmission path to a video receiver during a calibration mode. In the calibration mode, a return detection circuit of the video transmitting circuit detects whether or not a first return signal transmitted through the first transmission path and a second return signal transmitted through the second transmission path have been received by the video transmitting circuit. The video transmitting circuit sets delay circuits serially connected in the first or second transmission path according to a detection result of the return detection circuit, such that the first return signal transmitted through the first transmission path and the second return signal transmitted through the second transmission path can synchronously arrive at the video receiver.

Video transmitting circuit and signal delay compensation method thereof

The disclosure provides a voltage regulator with a soft-start effect. The voltage regulator includes an amplifier, a first voltage setting circuit, a voltage selector and a power transistor. The amplifier has two input terminals to receive respectively a reference voltage and a feedback voltage. The amplifier has a current source to provide a current to an output terminal. In a voltage bypass mode, the first voltage setting circuit increases a driving voltage on the output terminal according to the current based on a selection voltage. In the voltage bypass mode, the voltage selector sequentially reduces the selection voltage respectively in multiple time intervals in a startup time interval. The power transistor receives the driving voltage, and generates an output voltage according to the driving voltage based on an operating power supply.

Voltage regulator

A voltage regulator including an amplifier, a start signal generator and a power transistor is provided. The amplifier has a first positive input terminal, a second positive input terminal, and a negative input terminal to receive a start signal, a reference voltage and a feedback voltage respectively. An output terminal of the amplifier generates a driving voltage. The start signal generator is coupled to the first positive input terminal of the amplifier and generates the start signal, which is incremental, during a startup time interval in a voltage bypass mode. The power transistor generates an output voltage according to the driving voltage based on an operating power. In the voltage bypass mode, the reference voltage is equal to the operating power. A soft-start effect can be effectively achieved by the voltage regulator in the voltage bypass mode.

A voltage regulator, including an amplifier, a voltage setting circuit and a power transistor, is provided. The amplifier includes a first current source and a second current source. The amplifier has two input terminals to respectively receive a reference voltage and a feedback voltage. The first current source is coupled between the operating power source and an output terminal of the amplifier, and provides a first current to the output terminal. The second current source is coupled between the output terminal and a reference ground terminal, and draws a second current from the output terminal. The voltage setting circuit is coupled to the output terminal, and increases a driving voltage on the output terminal according to the first current in a voltage bypass mode. The power transistor receives the driving voltage and generates an output voltage according to the driving voltage based on the operating power source.

A method for capturing a tool path, applicable to a machine tool having a controller and furnished with a tooling, includes the steps of: obtaining a data update frequency of the controller; calculating a feed rate of the controller, determining whether or not the feed rate is obtained, going to next step if positive, and going to the previous step if negative; reading G-codes of the controller to confirm the feed rate; and, based on the confirmed feed rate, recording machine coordinates transmitted from the controller for synthesizing a tool path file. The tool path file is used for simulation and analysis of machining of the machine tool. In addition, a device for capturing the tool path is also provided.

Method for capturing tool path and device thereof

A control circuit for controlling signal rising time and falling time is provided. The circuit includes multiple data flip-flops, multiple controllable delay circuits, and multiple current source circuits. The data flip-flops are triggered by clock signals to output a plurality of data signals. The controllable delay circuits delay the data signals, based on corresponding delay amounts, to generate a plurality of activation signals. Each of the current source circuits determines whether to output a unit current to a signal output terminal according to a level of one of the activation signals. Rising or falling time for an output signal of the signal output terminal to rise or fall to a predetermined level is determined according to a cycle time length of the clock signal and the delay amount of each of the controllable delay circuits.

Control circuit for controlling signal rising time and falling time

A charging method, a charging system and an electronic device are provided. The charging method includes the following steps: An inputting current limit is set. An inputting current of at least one charger is measured. A power source voltage of a power source is adjusted until a current difference between the inputting current and the inputting current limit is within a predetermined range.

Charging method, charging system and electronic device

The invention provides a method for improving temperature management of a battery pack. The battery pack may comprise a battery cell charged via at least one supply trace of a PCB (printed circuit board), a protection circuit module mounted on the PCB and coupled to the at least one supply trace, and a plurality of temperature sensors respectively reflecting a temperature of the battery cell and a temperature of the PCB. The method may comprise: measuring a cell temperature and a PCB temperature by the temperature sensors; when charging the battery cell by a charging current and a charging voltage, controlling the charging voltage and the charging current according to the cell temperature, and adjusting the charging current further according to the PCB temperature, so as to constrain the temperature of the PCB.

Method for improving temperature management of battery pack

A multipath charger includes a first charging path, a second charging path, and a management module. A supply voltage is coupled through the first charging path and the second charging path to a battery. The management module provides the supply voltage and detects the operating state of the battery. The management module selectively enables the first charging path, the second charging path, or both according to the operating state of the battery, so as to charge the battery through the enabled charging path.

Multipath charger and charging method thereof

An electronic device includes: a connector, arranged for coupling to a power supply external to the electronic device, wherein the power supply is arranged to provide a supply voltage to the electronic device to charge a battery of the electronic device; and a charger, coupled to the connector and selectively operated in a normal mode or a self-test mode, wherein when the charger operates in the normal mode, the charger is arranged for receiving the supply voltage via a power pin of the connector to charge the battery of the electronic device; and when the charger operates in the self-test mode, the charger provides a specific voltage to the power pin of the connector. The charger includes a detector to detect the current or voltage of at least one pin of the connector to generate a detecting result, and the supply voltage is set based on the detecting result.

Electronic device, charger within the electronic device, and detecting method for detecting abnormal status of connector of electronic device

The present invention provides a charging apparatus, a charging control circuit, and a charging control method. The charging apparatus includes a power conversion circuit for generating a DC output voltage and charging a battery by a DC output current, and a charging control circuit for controlling the power conversion circuit. When the DC output voltage or the battery voltage rises to a first reference threshold voltage, the DC output current is adjusted downward by a current down step, and when the DC output voltage or the battery voltage falls to a second reference threshold voltage, the DC output current is adjusted upward by a current up step.

Charging apparatus and charging control circuit thereof and charging control method

According to at least one aspect, a device is provided. The device comprises: a connector configured to electrically couple to an external device and comprising a plurality of terminals including a supply terminal; a monitoring circuit coupled to the supply terminal and configured to apply an electrical signal to the supply terminal and measure at least one of a voltage level and a current level on the supply terminal; a controller communicatively coupled to the monitoring circuit and configured to: determine whether an impedance between the supply terminal and at least one other terminal in the plurality of terminals is above a threshold using the at least one of the voltage level and the current level on the supply terminal; and output at least one message responsive to the impedance being below the threshold.

Systems and methods for monitoring an operating status of a connector

An electrophoretic display and method for driving panel using the same are provided. The electrophoretic display includes a display panel and a driving circuit. The display panel includes a plurality of column data lines and a plurality of row scan lines. The driving circuit provides a plurality of data driving signals to the column data lines, and provides a plurality of scan signals to row scan lines. Each of the scan signals has a plurality of scan enable periods, and each of the scan enable periods includes a plurality of scan interval periods. Each of the scan signals is floating or grounding during the scan interval periods. Each of the data driving signals includes a plurality of data driving periods, and each of the data driving periods includes a plurality of driving interval period. Each of the data driving signals is floating or grounding during the driving interval period.

Electrophoretic display and method for driving panel thereof

A method used between a portable device and a battery pack including at least one battery cell includes: transmitting information for the battery cell from the portable device to the battery pack via the connecting interface or from the battery pack to the portable device via the connecting interface; and according to the information for the battery cell, performing at least one control operation that is associated with the battery cell; wherein there is an analog communication from the battery cell of the battery pack to the portable device to provide a voltage level actually from the battery cell.

Method for reading, writing, or updating information for battery cell via connecting interface between portable device and battery pack including battery cell so as to obtain precise information

Growing community of inventors

Hsinchu, Taiwan

Chih-Yuan Hsu