Patents by Inventor Yu-Chi Chang

Yu-Chi 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: 20180190766
    Abstract: A HVJT structure of HVIC includes P-type substrate. Epitaxial layer is formed on the substrate. N-type doped structure is formed in the epitaxial layer, contacting with the substrate. P-type doped structure is in the N-type doped structure connecting with anode. The substrate, the N-type doped structure and the P-type doped structure form a PNP path along a perpendicular direction to the substrate, wherein NP provide bootstrap diode function and surround the high-side circuit at a horizontal direction. N-type cathode structure is in the epitaxial layer. N-type epitaxial doped region contacts with the substrate, between the PNP path and the N-type cathode structure, also surrounding the high-side circuit. Gate structure is over the N-type epitaxial doped region, between the P-type doped structure and N-type cathode structure. P-type base doped structure is in the epitaxial layer adjacent to the N-type doped structure, to provide a substrate voltage to the substrate.
    Type: Application
    Filed: December 28, 2017
    Publication date: July 5, 2018
    Applicant: Nuvoton Technology Corporation
    Inventors: Wen-Ying Wen, MD Imran Siddiqui, Yu-Chi Chang
  • Patent number: 9978645
    Abstract: The present disclosure relates to a semiconductor device and method of manufacturing the same. The method of manufacturing the semiconductor device includes: providing a substrate, forming a patterned semiconductor layer on the substrate, forming a filter layer to cover the patterned semiconductor layer and forming a low concentration dopant buried layer within the semiconductor substrate, wherein one to forty percent of dopant are filtered out by the filter layer in the formation of the low concentration dopant buried layer.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: May 22, 2018
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Yu-Chi Chang, Hsin-Li Cheng, Felix Ying-Kit Tsui
  • Publication number: 20180093274
    Abstract: A grinding machine includes a slight gyration module for driving a homogeneous container to undergo an X-axial motion and a Y-axial motion within ±1-3 mm distance, a homogeneous-stick rotation module for rotating a homogeneous stick in the homogeneous container so as to generate an eccentric motion between the homogeneous stick and the homogeneous container, and a homogeneous-stick vertical movement module for vertically moving the homogeneous stick with respect to the homogeneous container. When the homogeneous stick is lowered into the homogeneous container by the homogeneous-stick vertical movement module, an eccentric motion with a 1-3 mm radius of gyration can be activated between the homogeneous container and the homogeneous stick so as to carry out the grinding in a tiny slim space between the homogeneous container and the homogeneous stick; such that the grinding efficiency of the grinding machine can be substantially enhanced.
    Type: Application
    Filed: December 14, 2016
    Publication date: April 5, 2018
    Inventors: JIA-HUEY TSAO, SHOW-YING YANG, YU-CHI CHANG
  • Patent number: 9925808
    Abstract: A paper cassette includes a casing and an end cap. The casing includes a receiving space for storing a stack of paper, one side of the casing defines a paper exit, the end cap is removably attached to the paper exit. When the paper exit is sealed by the end cap, the paper cassette is used to accommodate paper; when the end cap is removed from the paper exit and the paper cassette is inserted into a printing device, the paper cassette is used to feed paper to the printing device. A printing device is further disclosed.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: March 27, 2018
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Yu-Chi Chang
  • Publication number: 20180043709
    Abstract: A paper cassette includes a casing and an end cap. The casing includes a receiving space for storing a stack of paper, one side of the casing defines a paper exit, the end cap is removably attached to the paper exit. When the paper exit is sealed by the end cap, the paper cassette is used to accommodate paper; when the end cap is removed from the paper exit and the paper cassette is inserted into a printing device, the paper cassette is used to feed paper to the printing device. A printing device is further disclosed.
    Type: Application
    Filed: August 31, 2016
    Publication date: February 15, 2018
    Inventor: YU-CHI CHANG
  • Patent number: 9607031
    Abstract: A social data filtering system is provided. The social data filter system comprises a database, a retrieving module, a filtering module and a determining module. The database stores personal data and corresponding identification information. The retrieving module retrieves the personal data and the identification information corresponding to a designated person and generates search information accordingly to retrieve user information and corresponding social interaction information from a plurality of social data sources accordingly to the search information The filtering module performs filtering on the user information and the social interaction information according to the personal data to retrieve filtered information. The determining module determines at least one key word corresponding to the designated person according to the filtered information.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: March 28, 2017
    Assignee: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Chun-Hung Lu, Yi-Hsung Li, Wen-Tai Hsieh, Tai-Hung Chen, Yu-Chi Chang
  • Publication number: 20170033216
    Abstract: The present disclosure relates to a semiconductor device and method of manufacturing the same. The method of manufacturing the semiconductor device includes: providing a substrate, forming a patterned semiconductor layer on the substrate, forming a filter layer to cover the patterned semiconductor layer and forming a low concentration dopant buried layer within the semiconductor substrate, wherein one to forty percent of dopant are filtered out by the filter layer in the formation of the low concentration dopant buried layer.
    Type: Application
    Filed: July 31, 2015
    Publication date: February 2, 2017
    Inventors: YU-CHI CHANG, HSIN-LI CHENG, FELIX YING-KIT TSUI
  • Publication number: 20140372459
    Abstract: A social data filtering system is provided. The social data filter system comprises a database, a retrieving module, a filtering module and a determining module. The database stores personal data and corresponding identification information. The retrieving module retrieves the personal data and the identification information corresponding to a designated person and generates search information accordingly to retrieve user information and corresponding social interaction information from a plurality of social data sources accordingly to the search information The filtering module performs filtering on the user information and the social interaction information according to the personal data to retrieve filtered information. The determining module determines at least one key word corresponding to the designated person according to the filtered information.
    Type: Application
    Filed: May 20, 2014
    Publication date: December 18, 2014
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Chun-Hung LU, Yi-Hsung LI, Wen-Tai HSIEH, Tai-Hung CHEN, Yu-Chi CHANG
  • Patent number: 8701036
    Abstract: An electronic device and a method for implementing an icon board based operation interface thereof are provided. In the method, a plurality of areas within a screen frame on a screen of the electronic device are arranged for respectively displaying a plurality of function boards, in which each of the function boards is corresponding to one of a plurality of main functions supported by the electronic device. For each main function including at least one sub-function, a sub-function icon thereof is generated according to a relevant historical operating information, and a main function icon of the main function and the sub-function icon of each sub-function are displayed together on the function board of the main function.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: April 15, 2014
    Assignee: Wistron Corporation
    Inventors: Li-Hsuan Chen, Yu-Chi Chang, Hung-Yang Hsu
  • Publication number: 20120162227
    Abstract: A method of displaying a picture for an electronic device with picture display function includes determining whether a resolution of a picture inputted into the electronic device is greater than a resolution of a display device of the electronic device, displaying the picture in the display device when the resolution of the picture is smaller or equivalent to the resolution of the display device, and reducing the resolution of the picture and then displaying the reduced picture in the display device when the resolution of the picture is greater than the resolution of the display device.
    Type: Application
    Filed: March 23, 2011
    Publication date: June 28, 2012
    Inventors: Li-Po Chou, Ming-Fong Yeh, Yu-Chi Chang
  • Publication number: 20120047456
    Abstract: An electronic device and a method for implementing an icon board based operation interface thereof are provided. In the method, a plurality of areas within a screen frame on a screen of the electronic device are arranged for respectively displaying a plurality of function boards, in which each of the function boards is corresponding to one of a plurality of main functions supported by the electronic device. For each main function including at least one sub-function, a sub-function icon thereof is generated according to a relevant historical operating information, and a main function icon of the main function and the sub-function icon of each sub-function are displayed together on the function board of the main function.
    Type: Application
    Filed: June 28, 2011
    Publication date: February 23, 2012
    Applicant: WISTRON CORPORATION
    Inventors: Li-Hsuan Chen, Yu-Chi Chang, Hung-Yang Hsu
  • Publication number: 20110197129
    Abstract: A media file access control method for a digital media player includes a) receiving a mode selection instruction; b) determining whether the mode selection instruction corresponds to a lite mode or a computer file mode; and c) if the mode selection instruction corresponds to the lite mode, performing steps of loading a plurality of multimedia files according to content of a pre-established favorites list recording respective names and storage locations of the multimedia files, and displaying thumbnails of the multimedia files in a first region of a screen of a display element. The thumbnails of the multimedia files are capable of being selected such that the multimedia files can be played directly and instantly.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 11, 2011
    Applicant: Wistron Corporation
    Inventors: Hung-Yang HSU, Pei-Ling Lai, Yang-Peng Chen, Yung-An Fang, Hui-Yeen Chen, Yu-Chi Chang, Li-Hsuan Chen
  • Patent number: 7932775
    Abstract: A digital demodulation device for demodulating an amplitude modulation (AM) signal whose carrier has a first frequency includes: a processing circuit for performing first path digital processing and second path digital processing according to a second frequency and digital values of the AM signal, where the first path digital processing represents performing down conversion by mixing the AM signal with a first sinusoidal signal whose frequency is equal to the second frequency, the second path digital processing represents performing down conversion by mixing the AM signal with a second sinusoidal signal whose frequency is equal to the second frequency, the second frequency is equal to the first frequency plus a predetermined frequency shift, and the second sinusoidal signal is orthogonal to the first sinusoidal signal; and an output stage for outputting an output signal according to processing results of the first path digital processing and the second path digital processing.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: April 26, 2011
    Assignee: Mediatek Inc.
    Inventor: Yu-Chi Chang
  • Publication number: 20100307618
    Abstract: A bellows type water tap which can control the water outflow and consume no electricity, consists essentially of a main valve, a guide pipe, a foot pump, a bellows, one first regulating valve, one second regulating valve, a safety spring, a push rod, an adjusting block, a handle, a needle valve and a diaphragm. When the bellows is inactivated, pressure on above of the diaphragm is higher than the bottom and seals the water outlet and when bellows is expanded, the reaction presses down the needle valve and opens a water passage, lowering the pressure of upper portion of the diaphragm and opening the water outlet for water discharging.
    Type: Application
    Filed: June 4, 2009
    Publication date: December 9, 2010
    Inventors: Fu-Shum Zeng, Yu-Chi Chang
  • Publication number: 20100194472
    Abstract: A digital demodulation device for demodulating an amplitude modulation (AM) signal whose carrier has a first frequency includes: a processing circuit for performing first path digital processing and second path digital processing according to a second frequency and digital values of the AM signal, where the first path digital processing represents performing down conversion by mixing the AM signal with a first sinusoidal signal whose frequency is equal to the second frequency, the second path digital processing represents performing down conversion by mixing the AM signal with a second sinusoidal signal whose frequency is equal to the second frequency, the second frequency is equal to the first frequency plus a predetermined frequency shift, and the second sinusoidal signal is orthogonal to the first sinusoidal signal; and an output stage for outputting an output signal according to processing results of the first path digital processing and the second path digital processing.
    Type: Application
    Filed: February 5, 2009
    Publication date: August 5, 2010
    Inventor: Yu-Chi Chang
  • Patent number: 7557879
    Abstract: A transflective liquid crystal display module is provided. The transflective LCD includes a backlight unit for providing a light, an active matrix substrate, an opposite substrate with an internal reflector disposed between the active matrix substrate and the backlight unit, an optical film disposed on the opposite substrate, and a liquid crystal layer filled between the active matrix substrate and the optical film. In the transflective LCD of the present invention, the light provided by the backlight unit is reflected back by the internal reflector such that the light provided by the backlight unit can be recycled. Furthermore, a flat panel display device and an electronic apparatus are also provided.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: July 7, 2009
    Assignee: TPO Displays Corp
    Inventors: Wei-Chih Chang, Yu-Chi Chang, Norio Oku
  • Patent number: 7554619
    Abstract: The invention discloses a stacked storage capacitor structure for a LTPS TFT-LCD comprising a processed substrate, a first storage capacitor and a second storage capacitor. The first storage capacitor comprises a first conductive layer, a second conductive layer and a first insulating layer therebetween. The stacked storage capacitor structure further comprises a third conductive layer including a first portion and an extended second portion. The second storage capacitor comprises the second conductive layer, the extended second portion of the third conductive layer and a second insulating layer therebetween.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: June 30, 2009
    Assignee: TPO Displays Corp.
    Inventors: Mu-Chia Lee, Chun-Wei Huang, Hung-Che Lu, Kuo-Hung Kuo, Hong-Bin Li, Wen-Kuei Lai, Chia-Yi Tsai, Yu-Chi Chang, Hau-Chiun Li, Wei-Chih Chang
  • Publication number: 20070195235
    Abstract: A transflective liquid crystal display module is provided. The transflective LCD includes a backlight unit for providing a light, an active matrix substrate, an opposite substrate with an internal reflector disposed between the active matrix substrate and the backlight unit, an optical film disposed on the opposite substrate, and a liquid crystal layer filled between the active matrix substrate and the optical film. In the transflective LCD of the present invention, the light provided by the backlight unit is reflected back by the internal reflector such that the light provided by the backlight unit can be recycled. Furthermore, a flat panel display device and an electronic apparatus are also provided.
    Type: Application
    Filed: February 22, 2006
    Publication date: August 23, 2007
    Inventors: Wei-Chih Chang, Yu-Chi Chang, Norio Oku
  • Publication number: 20070126943
    Abstract: The invention discloses a stacked storage capacitor structure for a LTPS TFT-LCD comprising a processed substrate, a first storage capacitor and a second storage capacitor. The first storage capacitor comprises a first conductive layer, a second conductive layer and a first insulating layer therebetween. The stacked storage capacitor structure further comprises a third conductive layer including a first portion and an extended second portion. The second storage capacitor comprises the second conductive layer, the extended second portion of the third conductive layer and a second insulating layer therebetween.
    Type: Application
    Filed: December 5, 2005
    Publication date: June 7, 2007
    Inventors: Mu-Chia Lee, Chun-Wei Huang, Hung-Che Lu, Kuo-Hung Kuo, Hong-Bin Li, Wen-Kuei Lai, Chia-Yi Tsai, Yu-Chi Chang, Hau-Chiun Li, Wei-Chih Chang
  • Patent number: D629753
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: December 28, 2010
    Assignee: Advanced Connectek Inc.
    Inventor: Yu-Chi Chang