Patents by Inventor Hai-Tao Liu

Hai-Tao Liu 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: 20210116978
    Abstract: A frame module is provided, which is adapted to connect to an object unit. The frame module includes a module housing, a latch, and a cover. The object unit is connected to the module housing. The latch is connected to the module housing, which is adapted to be moved between the first latch position and the second latch position. When the latch is in the first latch position, the latch is connected to the object unit to restrict the object unit. When the latch is in the second latch position, the latch is separated from the object unit. The cover pivots on the module housing, which is adapted to be rotated between the first cover orientation and the second cover orientation. When the cover is in the first cover orientation, the cover presses the latch and keeps the latch in the first latch position.
    Type: Application
    Filed: April 15, 2020
    Publication date: April 22, 2021
    Inventors: Zhi-Tao YU, Hai-Nan QIU, Yu-Jian WU, Bo-Chun LIN, Chia-Hsin LIU
  • Publication number: 20200388759
    Abstract: The present invention relates to a structure of a memory device. The structure of a memory device includes a substrate, including a bottom electrode layer formed therein. A buffer layer is disposed on the substrate, in contact with the bottom electrode layer. A resistive layer surrounds a whole sidewall of the buffer layer, and extends upward vertically from the substrate. A mask layer is disposed on the buffer layer and the resistive layer. A noble metal layer is over the substrate, and fully covers the resistive layer and the mask layer. A top electrode layer is disposed on the noble metal layer.
    Type: Application
    Filed: July 8, 2019
    Publication date: December 10, 2020
    Applicant: United Microelectronics Corp.
    Inventors: HAI TAO LIU, Li Li Ding, Yao-Hung Liu, Guoan Du, Qi Lu Li, Chunlei Wan, Yi Yu Lin, Yuchao Chen, Huakai Li, Hung-Yueh Chen
  • Patent number: 10798802
    Abstract: A lighting device (10) is disclosed comprising a light engine (12) comprising at least one solid state lighting element (11); a controller (100) for controlling a dimming level of the light engine; a wireless communication module (16) communicatively coupled to the controller for receiving a wireless dimming instruction from a wireless controller (20); and a further communication module (15) communicatively coupled to the controller for connecting to a wired communication channel and for receiving a further dimming instruction from a further controller (30) wired to the further communication module through the wired communication channel; wherein the controller is adapted to independently control the dimming level of the light engine in response to the wireless dimming instruction and the further dimming instruction.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: October 6, 2020
    Assignee: SIGNIFY HOLDINGS B.V.
    Inventors: Eric Yang, Allen Zhang, Jeremy Jiang, Dunfa Chen, Feng He, Hai Tao Liu, Zhigang Pei
  • Patent number: 10510549
    Abstract: A method of fabricating a metal layer includes performing a first re-sputtering to remove a metal compound formed on a conductive layer. The first re-sputtering includes bombarding the metal compound and a dielectric layer on the conductive layer by inert ions and metal atoms. Then, a barrier is formed on the dielectric layer and the conductive layer. Later, a bottom of the barrier is removed. Subsequently, a metal layer is formed to cover the barrier.
    Type: Grant
    Filed: December 25, 2017
    Date of Patent: December 17, 2019
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Shouguo Zhang, Hai Tao Liu, Ming Hua Du, Yen-Chen Chen
  • Publication number: 20190267492
    Abstract: A semiconductor device includes an oxide semiconductor layer, disposed over a substrate. A source electrode of a metal nitride is disposed on the oxide semiconductor layer. A drain electrode of the metal nitride is disposed on the oxide semiconductor layer. A metal-nitride oxidation layer is formed on a surface of the source electrode and the drain electrode. A ratio of a thickness of the metal-nitride oxidation layer to a thickness of the drain electrode or the source electrode is equal to or less than 0.2.
    Type: Application
    Filed: May 15, 2019
    Publication date: August 29, 2019
    Applicant: United Microelectronics Corp.
    Inventors: Yen-Chen Chen, Xiao Wu, Hai Tao Liu, Ming Hua Du, Shouguo Zhang, Yao-Hung Liu, Chin-Fu Lin, Chun-Yuan Wu
  • Patent number: 10340391
    Abstract: A semiconductor device includes an oxide semiconductor layer, disposed over a substrate. A source electrode of a metal nitride is disposed on the oxide semiconductor layer. A drain electrode of the metal nitride is disposed on the oxide semiconductor layer. A metal-nitride oxidation layer is formed on a surface of the source electrode and the drain electrode. A ratio of a thickness of the metal-nitride oxidation layer to a thickness of the drain electrode or the source electrode is equal to or less than 0.2.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: July 2, 2019
    Assignee: United Microelectronics Corp.
    Inventors: Yen-Chen Chen, Xiao Wu, Hai Tao Liu, Ming Hua Du, Shouguo Zhang, Yao-Hung Liu, Chin-Fu Lin, Chun-Yuan Wu
  • Publication number: 20190198334
    Abstract: A method of fabricating a metal layer includes performing a first re-sputtering to remove a metal compound formed on a conductive layer. The first re-sputtering includes bombarding the metal compound and a dielectric layer on the conductive layer by inert ions and metal atoms. Then, a barrier is formed on the dielectric layer and the conductive layer. Later, a bottom of the barrier is removed. Subsequently, a metal layer is formed to cover the barrier.
    Type: Application
    Filed: December 25, 2017
    Publication date: June 27, 2019
    Inventors: Shouguo Zhang, Hai Tao Liu, Ming Hua Du, Yen-Chen Chen
  • Patent number: 10243689
    Abstract: This invention generally relates to interference mitigation, and more specifically to interference mitigation in wireless communications networks. The proposed solution takes advantage of the clear channel assessment (CCA) function used by WLAN networks. Hence, by jamming the interfering WLAN channel during a predetermined time period, the interfering WLAN network is forced to withhold transmissions on the WLAN interfering channel during a backoff period of time. The solution of the subject application makes use of this backoff period to enable a WPAN network to transmit critical information such as, but not limited to, a request for changing the current working frequency.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: March 26, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Zhizhong Zhang, Koen Johanna Guillaume Holtman, Peilang Dong, Jun Yao, Hai Tao Liu, Gang Wang, Dunfa Chen
  • Publication number: 20190006519
    Abstract: A semiconductor device includes an oxide semiconductor layer, disposed over a substrate. A source electrode of a metal nitride is disposed on the oxide semiconductor layer. A drain electrode of the metal nitride is disposed on the oxide semiconductor layer. A metal-nitride oxidation layer is formed on a surface of the source electrode and the drain electrode. A ratio of a thickness of the metal-nitride oxidation layer to a thickness of the drain electrode or the source electrode is equal to or less than 0.2.
    Type: Application
    Filed: June 29, 2017
    Publication date: January 3, 2019
    Applicant: United Microelectronics Corp.
    Inventors: Yen-Chen Chen, Xiao Wu, Hai Tao Liu, Ming Hua Du, Shouguo Zhang, Yao-Hung Liu, Chin-Fu Lin, Chun-Yuan Wu
  • Publication number: 20170207877
    Abstract: This invention generally relates to interference mitigation, and more specifically to interference mitigation in wireless communications networks. The proposed solution takes advantage of the clear channel assessment (CCA) function used by WLAN networks. Hence, by jamming the interfering WLAN channel during a predetermined time period, the interfering WLAN network is forced to withhold transmissions on the WLAN interfering channel during a backoff period of time. The solution of the subject application makes use of this backoff period to enable a WPAN network to transmit critical information such as, but not limited to, a request for changing the current working frequency.
    Type: Application
    Filed: May 22, 2015
    Publication date: July 20, 2017
    Inventors: ZHIZHONG ZHANG, KOEN JOHANNA GUILLAUME HOLTMAN, PEILANG DONG, JUN YAO, HAI TAO LIU, GANG WANG, DUNFA CHEN
  • Publication number: 20160109093
    Abstract: Disclosed is a lighting device comprising a solid state lighting element (20, 21, 101,102); a reflective arrangement (10) for reflecting luminous output of the solid state lighting element, the reflective arrangement comprising: a reflective conical central section (12) on a central axis of the lighting device; and an annular reflective body around the reflective conical central section, said body comprising an ellipsoid surface (14) having a first focal point lying inside the reflective conical central section and a second focal point, wherein the solid state lighting element is located at the second focal point; wherein the reflective conical central section (12) is movably mounted along said central axis. A lighting kit and luminaire including such a lighting device are also disclosed.
    Type: Application
    Filed: March 26, 2014
    Publication date: April 21, 2016
    Applicant: Koninklijke Philips N.V.
    Inventors: Ya-Kuang HSIAO, Lei SUI, Huaizhou LIAO, Hai Tao LIU
  • Patent number: 8090113
    Abstract: A system for modulating audio effects of speakers is provided. The system includes a selecting module, a playing module, a recording module, a time delay computing module and a modulating module. Based on these modules, the system is capable of determining a time difference and a pitch for each of the speakers, and modulating the time difference and the pitch for each of the speakers to a desired time difference and a desired pitch, so as to ensure that simultaneous sounds from each speaker arrive at a microphone at about the same time and with the same audio pitch. A related method is also provided.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: January 3, 2012
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Ping-Yang Chuang, Yi-Ching Weng, Chun-Hsien Wu, Hai-Feng Zhang, Hai-Tao Liu, Qing-Bo Yuan
  • Publication number: 20090136051
    Abstract: A system for modulating audio effects of speakers is provided. The system includes a selecting module, a playing module, a recording module, a time delay computing module and a modulating module. Based on these modules, the system is capable of determining a time difference and a pitch for each of the speakers, and modulating the time difference and the pitch for each of the speakers to a desired time difference and a desired pitch, so as to ensure that simultaneous sounds from each speaker arrive at a microphone at about the same time and with the same audio pitch. A related method is also provided.
    Type: Application
    Filed: August 21, 2008
    Publication date: May 28, 2009
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Ping-Yang Chuang, Yi-Ching Weng, Chun-Hsien Wu, Hai-Feng Zhang, Hai-Tao Liu, Qing-Bo Yuan
  • Patent number: 7206491
    Abstract: A light guide device (60) and a backlight module using the same. The light guide device includes: an incident surface (61); an emitting surface (64) adjacent to the incident surface; a reflecting surface (62) opposited to the emitting surface; a plurality of first V-shaped structures (644) formed on the emitting surface; and a plurality of second V-shaped structures (622) formed on the reflecting surface and perpendicular to the first V-shaped structures, wherein respective heigths of the second V-shaped structures increase with increasing distance from the incident surface and respective distances between adjacent second V-shaped structures decrease with increasing distance from the incident surface. The light guide device of the present invention does not need optical elements, and thus has a simple structure. A backlight module using the same light guide plate is also provided.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: April 17, 2007
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Di Feng, Ying-Bai Yan, Xing-Peng Yang, Hai-Tao Liu, Guo-Fan Jin, Shou-Shan Fan
  • Publication number: 20070041701
    Abstract: A backlight system includes a light guide plate and a light source. The light guide plate includes a light incident surface, a reflective surface adjoining the light incident surface, and a light-emitting surface opposite to the reflective surface. The light guide plate further includes an upper layer and a lower layer under the upper layer. The upper layer includes a substrate portion, a light-emitting surface, a second surface, and a number of projections. The projections extend from the second surface. Each projection has a top extremity adjoining the substrate portion and a bottom face distal from the substrate portion. The lower layer includes a light incident surface, a top surface adjoining the light incident surface, and a reflective surface opposite to the top surface. The top surface of the lower layer abuts the bottom face of the projections.
    Type: Application
    Filed: November 3, 2005
    Publication date: February 22, 2007
    Applicants: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Xing-Peng Yang, Guo-Fan Jin, Ying-Bai Yan, Di Feng, Hai-Tao Liu, Qiao-Feng Tan
  • Publication number: 20060044832
    Abstract: A light guide plate includes an incident surface, a reflecting surface, and a plurality of V-shaped projections arrayed on the reflecting surface. The V-shaped projections extend outwardly from the reflecting surface. Each of the V-shaped projection has a triangular cross-section. A vertex angle of the cross-section is in the range from 40° to 95°. A first base angle of the cross-section is in the range from 70° to 90°. A second base angle of the cross-section is in the range from 15° to 50°. A distribution density of the V-shaped projections progressively increases along a direction away from the incident surface. A size of the V-shaped projections progressively increases along a direction away from the incident surface. The light guide plate can be one of a flat sheet having a uniform thickness and a wedge-shape piece.
    Type: Application
    Filed: August 29, 2005
    Publication date: March 2, 2006
    Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.
    Inventors: Di Feng, Xing-Peng Yang, Guo-Fan Jin, Hai-Tao Liu, Ying-Bai Yan, Shou-Shan Fan
  • Publication number: 20060039670
    Abstract: A light guide device (60) and a backlight module using the same. The light guide device includes: an incident surface (61); an emitting surface (64) adjacent to the incident surface; a reflecting surface (62) opposited to the emitting surface; a plurality of first V-shaped structures (644) formed on the emitting surface; and a plurality of second V-shaped structures (622) formed on the reflecting surface and perpendicular to the first V-shaped structures, wherein respective heigths of the second V-shaped structures increase with increasing distance from the incident surface and respective distances between adjacent second V-shaped structures decrease with increasing distance from the incident surface. The light guide device of the present invention does not need optical elements, and thus has a simple structure. A backlight module using the same light guide plate is also provided.
    Type: Application
    Filed: August 18, 2005
    Publication date: February 23, 2006
    Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.
    Inventors: Di Feng, Ying-Bai Yan, Xing-Peng Yang, Hai-Tao Liu, Guo-Fan Jin, Shou-Shan Fan