Patents by Inventor Shin-Hung Chang

Shin-Hung Chang 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: 20240170954
    Abstract: A motor control method for coupled an electronic vehicle is provided. The motor controller controls a motor and is powered by a battery. The motor control method includes: when a main relay of the motor controller suddenly breaks contact, in a first phase, feeding back a surge current into the battery to suppress the surge current by a diode and a first current limit resistor of a first protecting circuit of the motor controller; and, in a second phase, conducting a discharge switch of a second protecting circuit of the motor controller by a control unit of the motor controller, and releasing the surge current to a reference voltage range by the discharge switch and a second current limit resistor of the second protecting circuit.
    Type: Application
    Filed: December 27, 2022
    Publication date: May 23, 2024
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Nan-Hsiung TSENG, Bing-Ren CHEN, Shin-Hung CHANG, Chin-Hone LIN
  • Publication number: 20150180311
    Abstract: A motor controller and a cooling method thereof are provided. The motor controller includes: a first power module; a second power module; a first heat sink having first fins; a second heat sink having second fins; a first partition board; a second partition board; a housing disposed at external sides of the first and second partition boards, with a first channel formed between the housing and the first partition board; a conduit connected to a rear end of the first heat sink and extending to an outlet of the housing; a first flow channel; and a second flow channel passing through the first channel and the gaps of the second fins, for second cold air to be introduced, and processed by a heat exchange process performed by the second power module to generate second hot air that is expelled to the outlet of the housing through the second flow channel.
    Type: Application
    Filed: October 20, 2014
    Publication date: June 25, 2015
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Kou-Tzeng LIN, Li-Fen LIU, Min-Chuan WU, An-Hung LIN, Shin-Hung CHANG, Po-Hua CHANG
  • Patent number: 8922964
    Abstract: A motor controller with a reverse-bias preventing mechanism includes a pre-charging unit, a protection unit, a conversion unit and a control unit. The pre-charging unit receives a power signal through a first electric-conduction path, and converts the power signal into a pre-charging signal according to a control signal. The protection unit receives the power signal through a second electric-conduction path, and determines whether to output the power signal, according to the polarity of the power signal. The conversion unit, coupled to the protection unit, receives the power signal outputted by the protection unit, and converts the power signal into a work voltage. The control unit, coupled to the conversion unit and the pre-charging unit, receives the work voltage to generate the control signal. The current of the power signal flowing through second electric-conduction path is smaller than the current flowing through first electric-conduction path.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: December 30, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Kun-Lun Chuang, Shin-Hung Chang, Tshaw-Chuang Chen
  • Publication number: 20140092501
    Abstract: A motor controller with a reverse-bias preventing mechanism includes a pre-charging unit, a protection unit, a conversion unit and a control unit. The pre-charging unit receives a power signal through a first electric-conduction path, and converts the power signal into a pre-charging signal according to a control signal. The protection unit receives the power signal through a second electric-conduction path, and determines whether to output the power signal, according to the polarity of the power signal. The conversion unit, coupled to the protection unit, receives the power signal outputted by the protection unit, and converts the power signal into a work voltage. The control unit, coupled to the conversion unit and the pre-charging unit, receives the work voltage to generate the control signal. The current of the power signal flowing through second electric-conduction path is smaller than the current flowing through first electric-conduction path.
    Type: Application
    Filed: December 11, 2012
    Publication date: April 3, 2014
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Kun-Lun Chuang, Shin-Hung Chang, Tshaw-Chuang Chen
  • Publication number: 20120169157
    Abstract: A cooling module and a water-cooled motor system using the same are provided. The cooling module comprises a main body and a first flow passage assembly. The main body comprises a first lateral portion and a second lateral portion opposite the first lateral portion. The first flow passage assembly, disposed in the main body, comprises a first flow passage and a second flow passage. The first flow passage has a first end and a second end, wherein the first end is adjacent to the first lateral portion, and the second end is adjacent to the second lateral portion. The second flow passage has a third end and a fourth end, wherein the third end is connected to the second end of the first flow passage, and the fourth end is adjacent to the first lateral portion.
    Type: Application
    Filed: November 2, 2011
    Publication date: July 5, 2012
    Inventors: Kou-Tzeng LIN, Shin-Hung Chang, Tseng-Teh Wei, Li-Ju Cheng
  • Publication number: 20050253838
    Abstract: A key-frame processor for computer system is provided to couple with the streaming server of the computer system to transmit a series of continuous computer image frames to a plurality of user sites. The key-frame processor for computer system comprises a key-frame reconstruction module and a key-frame selective streaming module. The key-frame reconstruction module is coupled with an instructor computer system to obtain image data transmitted by the instructor computer system to the streaming server, which image data represent image being displayed at the instructor computer. The key-frame reconstruction module reconstructs the obtained image data into displaying data representing the whole image as displayed, maintains data of the whole image being currently displayed at the instructor computer from time to time and stores the whole image data at the streaming server regularly.
    Type: Application
    Filed: May 16, 2004
    Publication date: November 17, 2005
    Inventors: Shin-Hung Chang, Shao-Ting Lee, Jan-Ming Ho
  • Patent number: 6864901
    Abstract: A real-time screen recording system is disclosed. Under the design of the real-time screen recording system of this invention, the Event Inspector records updated regions of the screen when a windows update event is generated, the Periodical Extractor records the screen updates periodically. This mechanism ensures that all updates will be recorded. The Event Filter inspects the update events to identify events relating to updates of screen to ensure correct recording of the updated regions. The Sporadic Controller adjusts the working frequency of the Periodical Extractor, so that the Periodical Extractor operates in an efficient manner. The Update Region Filter filters out unnecessary updated regions to avoid heavy workload of the computer system. As a result, an efficient and correct screen recording system may be achieved.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: March 8, 2005
    Assignee: Academia Sinica
    Inventors: Shin-Hung Chang, Shao-Ting Lee, Jan-Ming Ho
  • Publication number: 20040155910
    Abstract: A real-time screen recording system is disclosed. Under the design of the real-time screen recording system of this invention, the Event Inspector records updated regions of the screen when a windows update event is generated, the Periodical Extractor records the screen updates periodically. This mechanism ensures that all updates will be recorded. The Event Filter inspects the update events to identify events relating to updates of screen to ensure correct recording of the updated regions. The Sporadic Controller adjusts the working frequency of the Periodical Extractor, so that the Periodical Extractor operates in an efficient manner. The Update Region Filter filters out unnecessary updated regions to avoid heavy workload of the computer system. As a result, an efficient and correct screen recording system may be achieved.
    Type: Application
    Filed: February 11, 2003
    Publication date: August 12, 2004
    Applicant: ACADEMIA SINICA
    Inventors: Shin-Hung Chang, Shao-Ting Lee, Jan-Ming Ho