Patents by Inventor Chih-Ping Cheng

Chih-Ping Cheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240149057
    Abstract: A device for treating a user's skin using plasma is provided. The device comprises a plasma generation assembly and a power supply. The plasma generation assembly comprises a discharge electrode including a first surface; a first dielectric material layer provided on the first surface of the discharge electrode and the first surface, a ground electrode surrounding the discharge electrode, and an insulation member spacing around the discharge electrode from the ground electrode. The power supply configured to apply power to the plasma generation assembly so that plasma is generated from the first surface of the discharge electrode to the ground electrode and between the first dielectric material layer and the user's skin.
    Type: Application
    Filed: November 4, 2022
    Publication date: May 9, 2024
    Inventors: HUI-FANG LI, YU-TING LIN, CHUN-HAO CHANG, CHIH-TUNG LIU, CHUN-PING HSIAO, YU-PIN CHENG
  • Publication number: 20240132330
    Abstract: Motor control architecture including a travel, a hoist, and a controller is disclosed. The travel disposed on a main rail having an auxiliary-encoder includes a master-driver and a slave-driver for driving two motors. Each motor has a main-encoder. The hoist drives a rope and calculates a rope length continuously. The controller calculates an anti-sway position command based on the rope-length and a position command. The two drivers perform a full closed-loop computation based on a feedback of one main-encoder, a feedback of the auxiliary-encoder, and the anti-sway position command. Wherein, the master-driver controls one motor based on a speed command generated by the full closed-loop computation and the slave-driver follows the speed command and a torque command of the master-driver to drive another motor; or the two drivers compensate the torque command based on an error value between the feedback of one main-encoder and the feedback of the auxiliary-encoder.
    Type: Application
    Filed: October 18, 2023
    Publication date: April 25, 2024
    Inventors: Huan-Chang CHEN, Po-Jen KO, Chun-Ju WU, Lon-Jay CHENG, Wan-Ping CHEN, Chih-Yuan CHANG
  • Publication number: 20240097888
    Abstract: In a file sharing system, a key manager unit realizes a correspondence between the first user identifier and the first public key in response to a registration request of the first user, generates a first key material for encrypting the first file into a first encrypted file, and generates a first credential according to the first user identifier, the first file identifier, the first public key and the first key material after receiving an access-right claim request to the first file from the first user. A file storage unit stores the first encrypted file and the first credential. The first user uses the first user identifier, the first file identifier and the first private key to retrieve the first key material out of the first credential, and uses the first key material to decrypt the first encrypted file into the first file.
    Type: Application
    Filed: September 18, 2023
    Publication date: March 21, 2024
    Inventors: CHIA-JUNG LIANG, CHIHHUNG LIN, CHIH-PING HSIAO, YU-JIE SU, CHIA-HSIN CHENG, TUN-HOU WANG, MENG-CHAO TSAI, YUEH-CHIN LIN
  • Patent number: 11524380
    Abstract: A motion control system and a motion control method are provided. The motion control method includes: sending a plurality of machining commands to a second controller by a first controller at a cloud; storing the plurality of machining commands in a buffer by the second controller; and operating the machine tool according to the plurality of machining commands stored in the buffer. As such, when poor communication occurs between the first controller and the second controller, the second controller causes the buffer to send a deceleration command to the machine tool so as to cause the machine tool to operate at a reduced speed, thereby avoiding unexpected motion such as sudden shutdown of the machine tool and damage to machined products.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: December 13, 2022
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Ping Cheng, Chin-Hui Chen, Ming-Chun Ho, Tzuo-Liang Luo, Wan-Kun Chang, Shuo-Peng Liang
  • Publication number: 20220184764
    Abstract: A motion control system and a motion control method are provided. The motion control method includes: sending a plurality of machining commands to a second controller by a first controller at a cloud; storing the plurality of machining commands in a buffer by the second controller; and operating the machine tool according to the plurality of machining commands stored in the buffer. As such, when poor communication occurs between the first controller and the second controller, the second controller causes the buffer to send a deceleration command to the machine tool so as to cause the machine tool to operate at a reduced speed, thereby avoiding unexpected motion such as sudden shutdown of the machine tool and damage to machined products.
    Type: Application
    Filed: December 29, 2020
    Publication date: June 16, 2022
    Inventors: Chih-Ping Cheng, Chin-Hui Chen, Ming-Chun Ho, Tzuo-Liang Luo, Wan-Kun Chang, Shuo-Peng Liang
  • Publication number: 20210191354
    Abstract: A confirmation method for a tool of a machining process, applied to detect a health status of a tool changing device, includes following steps: obtaining tool data of a processing equipment from a storage unit of the tool through a first wireless transmission module; interpreting tool data, and converting an interpreting result into a tool assembling status data string; interpreting a tool acquirement corresponding to a process of a processing program, and converting the interpreting result into a process-related tool acquirement data string; and, comparing the tool assembling status data string with the process-related tool acquirement data string, and outputting a program and tool matching data string. In addition, a system for confirming a tool of a machining process is also provided.
    Type: Application
    Filed: June 17, 2020
    Publication date: June 24, 2021
    Inventor: CHIH-PING CHENG
  • Patent number: 10705501
    Abstract: A matching recognition method for an NC program and corresponding cutting tools includes a step of using an imaging device to capture 2-dimensional images from the cutting tools mounted at the corresponding numbered tool holders on a machine tool, a step of based on the 2-dimensional images to extract outline feature points and assembling postures of cutting tools and converting into corresponding tool-assembling strings, a step of obtaining tool demands from each of the sequential machining steps in the NC program and converting into corresponding stepwise tool-demanding strings, and a step of performing matching upon the tool-assembling strings and the stepwise tool-demanding strings to generate and output corresponding step-and-tool matching strings. In addition, an associated matching recognition system is provided to include an imaging device, an image-processing module, a step-decoding module and a matching and comparing module.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: July 7, 2020
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Ping Cheng, Chu-Kai Huang
  • Publication number: 20200117161
    Abstract: A matching recognition method for an NC program and corresponding cutting tools includes a step of using an imaging device to capture 2-dimensional images from the cutting tools mounted at the corresponding numbered tool holders on a machine tool, a step of based on the 2-dimensional images to extract outline feature points and assembling postures of cutting tools and converting into corresponding tool-assembling strings, a step of obtaining tool demands from each of the sequential machining steps in the NC program and converting into corresponding stepwise tool-demanding strings, and a step of performing matching upon the tool-assembling strings and the stepwise tool-demanding strings to generate and output corresponding step-and-tool matching strings. In addition, an associated matching recognition system is provided to include an imaging device, an image-processing module, a step-decoding module and a matching and comparing module.
    Type: Application
    Filed: December 5, 2018
    Publication date: April 16, 2020
    Inventors: CHIH-PING CHENG, Chu-Kai Huang
  • Patent number: 10209702
    Abstract: A tool management system of machine tools includes a reader, a receiver, a storage unit, a processor and a control unit. The reader is configured for reading at least one category parameter of the tool according to a tool index code of the tool. The receiver is configured for receiving real-time process information of the tool with a preset periodicity. The storage unit is configured for storing the tool index code, the category parameter, and the real-time process information. The processor is configured for processing a weighting algorithm to obtain a result according to the category parameter and the real-time process information. The control unit is configured for sending a control instruction according to the result.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: February 19, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Ping Cheng, Chao-Chuang Mai
  • Patent number: 10101175
    Abstract: A sensor interface circuit and sensor output adjusting method are provided. The sensor interface circuit includes a processor and a gain control circuit. The processor obtains information of a linear region of a sensor to set a configuration corresponding to the sensor. The gain control circuit is coupled to the processor, performs a return-to-zero operation for a maximum electronic value and a minimum electronic value corresponding to the linear region and performs a full-scale operation for a slope of the linear region according to the maximum input range of an analog-to-digital converter which is a subsequent-stage circuit of the sensor interface circuit.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: October 16, 2018
    Assignee: Industrial Technology Research Institute
    Inventors: Sih-Han Li, Shyh-Shyuan Sheu, Ya-Wen Yang, Chih-Ping Cheng, Chih-Sheng Lin
  • Patent number: 10008921
    Abstract: A driving power generating circuit configured to generate a driving power to drive a load is provided. The driving power generating circuit includes a signal generating circuit, a power converter circuit, and a sampling control circuit. The signal generating circuit is configured to output a control signal according to a feedback signal and a lock signal. The power converter circuit is electrically connected to the signal generating circuit. The power converter circuit is configured to generate the driving power according to the control signal, so as to drive the load. The sampling control circuit is electrically connected to the signal generating circuit. The sampling control circuit is configured to sample the control signal and output the lock signal according to a sampling result. A method for generating a driving power is also provided.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: June 26, 2018
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Ping Cheng, Pei-Ling Tseng, Szu-Chieh Liu, Sue-Chen Liao
  • Publication number: 20180136010
    Abstract: A sensor interface circuit and sensor output adjusting method are provided. The sensor interface circuit includes a processor and a gain control circuit. The processor obtains information of a linear region of a sensor to set a configuration corresponding to the sensor. The gain control circuit is coupled to the processor, performs a return-to-zero operation for a maximum electronic value and a minimum electronic value corresponding to the linear region and performs a full-scale operation for a slope of the linear region according to the maximum input range of an analog-to-digital converter which is a subsequent-stage circuit of the sensor interface circuit.
    Type: Application
    Filed: May 26, 2017
    Publication date: May 17, 2018
    Inventors: Sih-Han Li, Shyh-Shyuan Sheu, Ya-Wen Yang, Chih-Ping Cheng, Chih-Sheng Lin
  • Publication number: 20180052442
    Abstract: A tool management system of machine tools includes a reader, a receiver, a storage unit, a processor and a control unit. The reader is configured for reading at least one category parameter of the tool according to a tool index code of the tool. The receiver is configured for receiving real-time process information of the tool with a preset periodicity. The storage unit is configured for storing the tool index code, the category parameter, and the real-time process information. The processor is configured for processing a weighting algorithm to obtain a result according to the category parameter and the real-time process information. The control unit is configured for sending a control instruction according to the result.
    Type: Application
    Filed: December 19, 2016
    Publication date: February 22, 2018
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Ping CHENG, Chao-Chuang MAI
  • Publication number: 20170070133
    Abstract: A driving power generating circuit configured to generate a driving power to drive a load is provided. The driving power generating circuit includes a signal generating circuit, a power converter circuit, and a sampling control circuit. The signal generating circuit is configured to output a control signal according to a feedback signal and a lock signal. The power converter circuit is electrically connected to the signal generating circuit. The power converter circuit is configured to generate the driving power according to the control signal, so as to drive the load. The sampling control circuit is electrically connected to the signal generating circuit. The sampling control circuit is configured to sample the control signal and output the lock signal according to a sampling result. A method for generating a driving power is also provided.
    Type: Application
    Filed: November 18, 2015
    Publication date: March 9, 2017
    Inventors: Chih-Ping Cheng, Pei-Ling Tseng, Szu-Chieh Liu, Sue-Chen Liao
  • Publication number: 20160284584
    Abstract: An apparatus and method for processing semiconductor substrates provides a substrate stage being a rotatable disc with a solid surface and a terraced edge with upper, intermediate and lower portions of increasing diameter. A hollow edge ring rests on the intermediate edge portion and a substrate disposed on the rotatable disc is lifted and transported by robot blades positioned beneath the edge ring and which lift the edge ring which holds the substrate around its edges. The rotatable disc and edge ring find application in MOCVD and other semiconductor manufacturing tools.
    Type: Application
    Filed: June 7, 2016
    Publication date: September 29, 2016
    Inventors: Hsieh Chih-Chang, Chung-chieh Hsu, Chian-kun Chan, Chih-Kuo Chang, Chih-Ping Cheng-Jen, Hsu-Shui Liu, Lo Kai, Wei-ting Hsiao, Yung-Kai Lin
  • Patent number: 9421626
    Abstract: An apparatus for electrical discharge machining modulation control includes an EDM module, an open-circuit voltage modulation module, a reference-voltage modulation and judgment module, a database, and a control unit. The control unit selects a reference voltage, and an open-circuit voltage corresponding to characteristics of a workpiece from the database, and generates and transmits a second control signal to the open-circuit voltage modulation module for modulating the open-circuit voltage, and a third control signal to the reference-voltage modulation and judgment module for modulating the reference voltage utilized to determine if the ignition happened. The open-circuit voltage modulation module receives a first control signal periodically transmitted from the control unit for providing the open-circuit voltage to the EDM module.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: August 23, 2016
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chao-Chuang Mai, Chin-Hui Chen, Chih-Ping Cheng, Der-Shuen Chen, Ming-Ji Chen
  • Patent number: 9205504
    Abstract: A self-adjusting power device for high efficiency electrical discharge machining and method thereof is disclosed. A high-voltage arc unit and a low-voltage discharge unit provide a high voltage arc pulse and a low voltage discharge pulse to an electrode respectively. The electrode machines a workpiece and feeds back a gap voltage to a discharge pulse generation unit. The discharge pulse generation unit determines whether the gap voltage is lower than a predetermined voltage or not. If yes, a discharge channel between the electrode and the workpiece is conducted, and the discharge pulse generation unit shuts down the high-voltage arc unit and the low-voltage discharge unit is still operating at ON time and shuts down at OFF time. If no, looping the determination of the discharge pulse generation unit. Therefore, discharge machining energy is accurately controlled and high efficient power saving is achieved.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: December 8, 2015
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Der-Shuen Chen, Chao-Chuang Mai, Chen-Huei Kuo, Chih-Ping Cheng, Chin-Hui Chen
  • Patent number: 9205525
    Abstract: A method and a system, for offsetting measurement of machine tool, includes following steps. A tool seat is chosen, a first coordinate is set based on a first datum mark of the tool seat. There is a total tool seat assembling length in between the first datum mark and the tool seat. A tool is chosen, assembled in the tool seat, and includes a total tool length. A second coordinate is set based on a second datum mark of a measuring unit. The tool seat is moved to make a machining end of the tool contact with the second coordinate to obtain a relative total length in between the first and the second coordinate. The total tool length subtracts from the relative total length equals an assembled offset length. The total tool seat assembling length subtracts from the relative total length equals and obtains a tool assembling length.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: December 8, 2015
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE-TAIW
    Inventors: Chao-Chuang Mai, Chih-Ping Cheng, Chang-Sheng Chen, Chin-Hui Chen, Chia-Sheng Chiang
  • Publication number: 20140083980
    Abstract: An apparatus for electrical discharge machining modulation control includes an EDM module, an open-circuit voltage modulation module, a reference-voltage modulation and judgment module, a database, and a control unit. The control unit selects a reference voltage, and an open-circuit voltage corresponding to characteristics of a workpiece from the database, and generates and transmits a second control signal to the open-circuit voltage modulation module for modulating the open-circuit voltage, and a third control signal to the reference-voltage modulation and judgment module for modulating the reference voltage utilised to determine if the ignition happened. The open-circuit voltage modulation module receives a first control signal periodically transmitted from the control unit for providing the open-circuit voltage to the EDM module.
    Type: Application
    Filed: July 5, 2013
    Publication date: March 27, 2014
    Inventors: CHAO-CHUANG MAI, CHIN-HUI CHEN, CHIH-PING CHENG, DER-SHUEN CHEN, MING-JI CHEN
  • Publication number: 20120152907
    Abstract: A self-adjusting power device for high efficiency electrical discharge machining and method thereof is disclosed. A high-voltage arc unit and a low-voltage discharge unit provide a high voltage arc pulse and a low voltage discharge pulse to an electrode respectively. The electrode machines a workpiece and feeds back a gap voltage to a discharge pulse generation unit. The discharge pulse generation unit determines whether the gap voltage is lower than a predetermined voltage or not. If yes, a discharge channel between the electrode and the workpiece is conducted, and the discharge pulse generation unit shuts down the high-voltage arc unit and the low-voltage discharge unit is still operating at ON time and shuts down at OFF time. If no, looping the determination of the discharge pulse generation unit. Therefore, discharge machining energy is accurately controlled and high efficient power saving is achieved.
    Type: Application
    Filed: August 4, 2011
    Publication date: June 21, 2012
    Applicant: Industrial Technology Research Institute
    Inventors: DER-SHUEN CHEN, Chao-Chuang Mai, Chen-Huei Kuo, Chih-Ping Cheng, Chin-Hui Chen