Patents by Inventor Sheng-ho Chang

Sheng-ho 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).

  • Millimeter wave filter fine-tuning structure
    Patent number: 10186745
    Abstract: A millimeter wave filter fine-tuning structure includes a resonant cavity, a fine-tuning cavity disposed at the edge of the resonant cavity, a fine-tuning cavity coupled to the resonant cavity, and plural adjusting screws disposed and inserted in the fine-tuning cavity, and the distance between the adjusting screws and the resonant cavity may be used to adjust the resonant frequency of the filter.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: January 22, 2019
    Inventors: Jung-Chin Hsu, Sheng-Ho Chang, Sheng-Feng Yeh, Chun-Kai Wang, Wun-Kai Wu, Chun-Yu Chu, Chun-Wei Chen
  • MILLIMETER WAVE FILTER FINE-TUNING STRUCTURE
    Publication number: 20180233795
    Abstract: A millimeter wave filter fine-tuning structure includes a resonant cavity, a fine-tuning cavity disposed at the edge of the resonant cavity, a fine-tuning cavity coupled to the resonant cavity, and plural adjusting screws disposed and inserted in the fine-tuning cavity, and the distance between the adjusting screws and the resonant cavity may be used to adjust the resonant frequency of the filter.
    Type: Application
    Filed: February 13, 2017
    Publication date: August 16, 2018
    Applicant: Universal Microwave Technology, Inc.
    Inventors: Jung-Chin Hsu, Sheng-Ho Chang, Sheng-Feng Yeh, CHUN-KAI WANG, Wun-Kai Wu, Chun-Yu Chu, Chun-Wei Chen
  • Light-emitting diode light source and light-emitting diode lamp
    Patent number: 8421367
    Abstract: A light-emitting diode (LED) light source suitable for being electrically connected with a power line is provided. The LED light source includes an LED array, a power line communication (PLC) unit and a current control unit. The PLC unit is electrically connected with the power line, and the current control unit is electrically connected with the LED array and the PLC unit.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: April 16, 2013
    Assignee: GE Investment Co., Ltd.
    Inventors: Wen-Kuei Tsai, Sheng-ho Chang, Chun-Chien Wang
  • Apparatus and Method for Mining Comment Terms in Documents
    Publication number: 20110131213
    Abstract: This invention discloses a method for mining a comment term in a document. The method comprises, first, to build a document database and a keyword database, wherein the document database includes at least one digital document, the keyword database includes at least one keyword. Then, a language of the digital document is determined. The digital document is processed based on the language to form a first document. Next, word groups are gathered from the first document based on a gathering range and apart-of-speech, wherein each word group includes the keyword and a word with the part-of-speech.
    Type: Application
    Filed: March 29, 2010
    Publication date: June 2, 2011
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Yu-Chieh Wu, Pei-Sen Liu, Han-Shiang Chang, Sheng-Ho Chang, Hsin-Jung Huang
  • LIGHT-EMITTING DIODE LIGHT SOURCE AND LIGHT-EMITTING DIODE LAMP
    Publication number: 20090058317
    Abstract: A light-emitting diode (LED) light source suitable for being electrically connected with a power line is provided. The LED light source includes an LED array, a power line communication (PLC) unit and a current control unit. The PLC unit is electrically connected with the power line, and the current control unit is electrically connected with the LED array and the PLC unit.
    Type: Application
    Filed: October 24, 2007
    Publication date: March 5, 2009
    Applicant: TOPCO TECHNOLOGIES CORP.
    Inventors: Wen-Kuei Tsai, Sheng-ho Chang, Chun-Chien Wang