Patents by Inventor Tong Cheng

Tong 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).

  • Patent number: 8963836
    Abstract: A method and system for gesture-based human-machine interaction and computer-readable medium are provided. The system includes a capturing module, a positioning module, and a transforming module. The method includes the steps of: capturing images from a user's video streams, positioning coordinates of three or more predetermined color blocks in the foreground, simulating movements of a mouse according to the coordinates of the first color block, and simulating click actions of the mouse according to the coordinates of the other color blocks. The embodiments according to the current disclosure position coordinates of a plurality of color blocks through processing the captured user's video streams, and simulate mouse actions according to the coordinates of the color blocks. Processing apparatuses like computers may be extended to facilitate gesture-based human-machine interactions through a very simple way, and a touch-sensitive interaction effect can be simulated, without the presence of a touch screen.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: February 24, 2015
    Assignee: Tencent Technology (Shenzhen) Company Limited
    Inventors: Tong Cheng, Shuai Yue
  • Publication number: 20150048750
    Abstract: A light emitting system includes a series connection of a light emitting unit and a variable current source, and a voltage conversion device that includes a rectifier circuit and an output circuit. The rectifier circuit rectifies an AC voltage to generate a rectified voltage across a first rectifier output coupled to one end of the series connection of the light emitting unit and the variable current source, and a second rectifier output. The output circuit is coupled between the second rectifier output and another end of the series connection of the light emitting unit and the variable current source, and is configured to generate a direct-current (DC) output voltage.
    Type: Application
    Filed: July 17, 2014
    Publication date: February 19, 2015
    Applicant: RICHTEK TECHNOLOGY CORP.
    Inventors: Tong-Cheng JAO, Yi-Wei LEE, Isaac Y. CHEN
  • Publication number: 20140316735
    Abstract: The present invention discloses a protection device and a calibration method thereof. The protection device includes a sensing circuit and a detection circuit. The detection circuit includes: a comparing circuit, a setting circuit and an automatic calibration circuit. The comparing circuit is coupled to the sensing circuit and generates a protection signal according to a sensing signal and an offset setting. The setting circuit is coupled to the comparing circuit and generates the offset setting according to a calibration signal. The automatic calibration circuit is coupled between the comparing circuit and the setting circuit, for generating the calibration signal. The automatic calibration circuit automatically sets a protection threshold and stores the calibration signal which corresponds to the protection threshold.
    Type: Application
    Filed: January 13, 2014
    Publication date: October 23, 2014
    Applicant: RICHTEK TECHNOLOGY CORPORATION
    Inventors: Tong-Cheng Jao, Isaac Y. Chen
  • Publication number: 20140209365
    Abstract: An over-current protection device, which can be surface-mounted and stand upright on a circuit board and withstand 60 to 600 volts, comprises a PTC device, first and second electrodes. The PTC device is a laminated structure comprising first and second conductive layers and a PTC material layer. The first and second conductive layers are in physical contact with first and second planar surfaces of the PTC material layer, respectively. The first electrode is disposed on the first conductive layer. The second electrode is disposed on the second conductive layer and is separated from the first electrode. The first electrode, the second electrode and the PTC device commonly form an end surface which is substantially perpendicular to the first and second planar surfaces. The first electrode and the second electrode at the end surface serve as interfaces electrically connecting to the circuit board.
    Type: Application
    Filed: September 4, 2013
    Publication date: July 31, 2014
    Applicant: POLYTRONICS TECHNOLOGY CORP.
    Inventors: Tong Cheng TSAI, Wen Feng LEE, Chun Teng TSENG, Chi Jen SU, Yi An SHA
  • Publication number: 20130295124
    Abstract: Provided are an ORF7 deficient varicella virus, an vaccine comprising the virus and use thereof, as well as a method for the production the virus.
    Type: Application
    Filed: July 27, 2010
    Publication date: November 7, 2013
    Applicants: New Jersey Medical School, Xiamen University, Beijing Wantai Biological Pharmacy Enterprise Co.,
    Inventors: Hua Zhu, Yimin Li, Ningshao Xia, Tong Cheng, Xiangzhong Ye
  • Publication number: 20130162532
    Abstract: A method and system for gesture-based human-machine interaction and computer-readable medium are provided. The system includes a capturing module, a positioning module, and a transforming module. The method includes the steps of: capturing images from a user's video streams, positioning coordinates of three or more predetermined color blocks in the foreground, simulating movements of a mouse according to the coordinates of the first color block, and simulating click actions of the mouse according to the coordinates of the other color blocks. The embodiments according to the current disclosure position coordinates of a plurality of color blocks through processing the captured user's video streams, and simulate mouse actions according to the coordinates of the color blocks. Processing apparatuses like computers may be extended to facilitate gesture-based human-machine interactions through a very simple way, and a touch-sensitive interaction effect can be simulated, without the presence of a touch screen.
    Type: Application
    Filed: August 16, 2011
    Publication date: June 27, 2013
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Tong Cheng, Shuai Yue
  • Patent number: 8421584
    Abstract: An over-current protection device includes a conductive composite having a first crystalline fluorinated polymer, a plurality of particulates, a conductive filler, and a non-conductive filler, wherein the plurality of particulates include a second crystalline fluorinated polymer. The first crystalline fluorinated polymer has a crystalline melting temperature of between 150 and 190 degrees Celsius. The plurality of particulates including the second crystalline fluorinated polymer are disposed in the conductive composite, having a crystalline melting temperature of between 320 and 390 degrees Celsius and having a particulate diameter of from 1 to 50 micrometers. The conductive filler and the non-conductive filler are dispersed in the conductive composite.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: April 16, 2013
    Assignee: Polytronics Technology Corp.
    Inventors: Tong Cheng Tsai, Yi An Sha, David Shau Chew Wang, Fu Hua Chu
  • Publication number: 20120301449
    Abstract: The RNAi target sequences, which could be used for treating AIDS through targeting HIV. Based on the target sequences, recombinant expression vectors, packaging vectors and cells were constructed, which express siRNA and/or miRNA and/or ribozyme and/or antisense oligonucleotide for targeting HIV. And the applications of said recombinant expression vectors, packaging vectors and cells in preparing medicament for treating AIDS.
    Type: Application
    Filed: August 13, 2012
    Publication date: November 29, 2012
    Applicants: YANG SHENG TANG COMPANY LIMITED, XIAMEN UNIVERSITY
    Inventors: TONG CHENG, TAO ZHANG, YALI ZHANG, JI MIAO, JUN ZHANG, NINGSHAO XIA
  • Publication number: 20120182118
    Abstract: An over-current protection device includes a conductive composite having a first crystalline fluorinated polymer, a plurality of particulates, a conductive filler, and a non-conductive filler, wherein the plurality of particulates include a second crystalline fluorinated polymer. The first crystalline fluorinated polymer has a crystalline melting temperature of between 150 and 190 degrees Celsius. The plurality of particulates including the second crystalline fluorinated polymer are disposed in the conductive composite, having a crystalline melting temperature of between 320 and 390 degrees Celsius and having a particulate diameter of from 1 to 50 micrometers. The conductive filler and the non-conductive filler are dispersed in the conductive composite.
    Type: Application
    Filed: January 17, 2012
    Publication date: July 19, 2012
    Applicant: Polytronics Technology Corp.
    Inventors: Tong Cheng Tsai, Yi An Sha, David Shau Chew Wang, Fu Hua Chu
  • Publication number: 20110243904
    Abstract: The present invention relates to RNA interference target sequence targeting HIV for the treatment of AIDS. Based on the target sequence, recombinant expression vectors, packaging vectors and cells were constructed, which express a siRNA and/or a miRNA and/or a ribozyme and/or an antisense oligonucleotide targeting HIV. Also provided is the use of the recombinant expression vectors, packaging vectors and recombinant cells in the manufacture of a medicament for the treatment of AIDS.
    Type: Application
    Filed: June 2, 2008
    Publication date: October 6, 2011
    Applicants: XIAMEN UNIVERSITY, BEIJING WANTAI BIOLOGICAL PHARMACY ENTERPRISE CO., LTD.
    Inventors: Tong Cheng, Tao Zhang, Yali Zhang, Ji Miao, Jun Zhang, Ningshao Xia
  • Patent number: 7965479
    Abstract: An over-current and over-voltage protection assembly apparatus including an over-current protection (OCP) device and an over-voltage protection (OVP) device is provided. One end of the OCP device is electrically connected to a first connection point, and the other end is electrically connected to a second connection point. One end of the OVP device is electrically connected to a third connection point, and the other end is electrically connected to the second connection point. The second connection point is a common point. The OCP device and the OVP device are modularized and integrated to an assembly. The first, second, and third connection points are connected to an external circuit to be protected, such that the OCP device is connected in series to the circuit to be protected, and the OVP device is connected in parallel to the circuit to be protected.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: June 21, 2011
    Assignee: Polytronics Technology Corporation
    Inventors: Pao Hsuan Chen, Ching Han Yu, Tong Cheng Tsai
  • Patent number: 7708912
    Abstract: A variable impedance composition according to one aspect of the present invention comprises a high electro-magnetic permeability powder in an amount from 10% to 85% of the weight of the variable impedance composition, and an insulation adhesive in an amount from 10% to 30% of the weight of the variable impedance composition. The incorporation of high electro-magnetic permeability powder including carbonyl metal, such as carbonyl iron or carbonyl nickel, in the variable impedance composition can not only suppress the overstress voltage, but also dampen the transient current. In contrast to the conventional electrostatic discharge (ESD) device, the relatively high electro-magnetic permeability carbonyl metal powder can reduce arcing as well as lower the trigger voltage of the device. The high electro-magnetic permeability characteristics can also absorb the undesirable electro-magnetic radiation that causes corruption of signal and loss of data.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: May 4, 2010
    Assignee: Polytronics Technology Corporation
    Inventors: Pao Hsuan Chen, David Shau Chew Wang, Tong Cheng Tsai
  • Publication number: 20090309074
    Abstract: A variable impedance composition according to one aspect of the present invention comprises a high electro-magnetic permeability powder in an amount from 10% to 85% of the weight of the variable impedance composition, and an insulation adhesive in an amount from 10% to 30% of the weight of the variable impedance composition. The incorporation of high electro-magnetic permeability powder including carbonyl metal, such as carbonyl iron or carbonyl nickel, in the variable impedance composition can not only suppress the overstress voltage, but also dampen the transient current. In contrast to the conventional electrostatic discharge (ESD) device, the relatively high electro-magnetic permeability carbonyl metal powder can reduce arcing as well as lower the trigger voltage of the device. The high electro-magnetic permeability characteristics can also absorb the undesirable electro-magnetic radiation that causes corruption of signal and loss of data.
    Type: Application
    Filed: June 16, 2008
    Publication date: December 17, 2009
    Applicant: POLYTRONICS TECHNOLOGY CORPORATION
    Inventors: Pao Hsuan Chen, David Shau Chew Wang, Tong Cheng Tsai
  • Publication number: 20090231763
    Abstract: An over-voltage protection device comprises a substrate having a first surface and a second surface, a first nonrectangular conductor having a first protrusion positioned on the first surface of the substrate, a second nonrectangular conductor having a second protrusion positioned on the first surface of substrate, at least one alignment block positioned on the second surface, and a variable impedance material positioned between the first protrusion and the second protrusion. Preferably, the second protrusion faces the first protrusion to form an arcing path from the first protrusion to the second protrusion.
    Type: Application
    Filed: March 12, 2008
    Publication date: September 17, 2009
    Applicant: POLYTRONICS TECHNOLOGY CORPORATION
    Inventors: Pao Hsuan Chen, David Shau Chew Wang, Ching Han Yu, Tong Cheng Tsai
  • Publication number: 20090224213
    Abstract: A variable impedance composition according to this aspect of the present invention comprises a conductive powder in an amount from 10% to 30% of the weight of the variable impedance composition, a semi-conductive power in an amount from 30% to 90% of the weight of the variable impedance composition, and an insulation adhesive in an amount from 3% to 50% of the weight of the variable impedance composition. According to one embodiment of the present invention, the variable impedance material presents a high resistance at a low applied voltage and a low resistance at a high applied voltage. As the variable impedance material is positioned in a gap between two conductors of an over-voltage protection device, the over-voltage protection device as a whole presents a high resistance to a low voltage applied across the gap and a low resistance to a high voltage applied across the gap.
    Type: Application
    Filed: March 6, 2008
    Publication date: September 10, 2009
    Applicant: POLYTRONICS TECHNOLOGY CORPORATION
    Inventors: Pao Hsuan Chen, David Shau Chew Wang, Ching Han Yu, Tong Cheng Tsai
  • Publication number: 20080305100
    Abstract: Activated protein C (APC), a prodrug, and/or a variant of APC may be used to inhibit undesirable effects of plasminogen activator: e.g., apoptosis or cell death of neurons and endothelial cells, brain hemorrhage or intracerebral bleeding, and/or tissue damage in a subject's brain. Inhibition appears to act through the extrinsic pathway of death receptor signal transduction. This represents an improvement in treatment using plasminogen activator (e.g., fibrinolysis). By reducing undesirable effects, the window for fibrinolytic therapy by plasminogen activator may be widened.
    Type: Application
    Filed: July 25, 2005
    Publication date: December 11, 2008
    Inventors: Berislav V. Zlokovic, Dong Liu, Tong Cheng, Huang Guo
  • Patent number: 7369094
    Abstract: A dual-frequency high-gain antenna is provided, which includes: a diplexer loop portion disposed at the center of the antenna substrate for receiving a feed signal; two single-frequency radiation units, symmetrically connected to two sides of the diplexer loop portion for radiating a radio-frequency signal corresponding to a first frequency value of the feed signal; and two dual-frequency radiation units, respectively connected to each single-frequency radiation portion for radiating radio-frequency signals corresponding to the first frequency value and a second frequency value of the feed signal.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: May 6, 2008
    Assignee: Smartant Telecom Co., Ltd.
    Inventors: Jia-Jiu Song, Wei-Tong Cheng
  • Publication number: 20080100981
    Abstract: An over-current and over-voltage protection assembly apparatus including an over-current protection (OCP) device and an over-voltage protection (OVP) device is provided. One end of the OCP device is electrically connected to a first connection point, and the other end is electrically connected to a second connection point. One end of the OVP device is electrically connected to a third connection point, and the other end is electrically connected to the second connection point. The second connection point is a common point. The OCP device and the OVP device are modularized and integrated to an assembly. The first, second, and third connection points are connected to an external circuit to be protected, such that the OCP device is connected in series to the circuit to be protected, and the OVP device is connected in parallel to the circuit to be protected.
    Type: Application
    Filed: September 19, 2007
    Publication date: May 1, 2008
    Inventors: Pao Hsuan CHEN, Ching Han Yu, Tong Cheng Tsai
  • Publication number: 20080074340
    Abstract: A dual-frequency high-gain antenna is provided, which includes: a diplexer loop portion disposed at the center of the antenna substrate for receiving a feed signal; two single-frequency radiation units, symmetrically connected to two sides of the diplexer loop portion for radiating a radio-frequency signal corresponding to a first frequency value of the feed signal; and two dual-frequency radiation units, respectively connected to each single-frequency radiation portion for radiating radio-frequency signals corresponding to the first frequency value and a second frequency value of the feed signal.
    Type: Application
    Filed: September 26, 2006
    Publication date: March 27, 2008
    Applicant: SmartAnt Telecom Co., Ltd.
    Inventors: Jia-Jiu Song, Wei-Tong Cheng
  • Patent number: 7215285
    Abstract: A bi-frequency symmetrical patch antenna includes two bi-frequency symmetrical radiation units, each having a first band radiation section and two second band radiation sections, to radiate a feed-in signal in a selected direction. Further, the antenna has a power distribution unit, to evenly distribute the feed-in power, corresponding to the feed-in signal, to each bi-frequency symmetrical radiation unit. The power distribution unit has two side arms connecting respectively to each bi-frequency symmetrical radiation unit to increase the bandwidth range of the bi-frequency antenna.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: May 8, 2007
    Assignee: Smartant Telecom Co., Ltd.
    Inventors: Jia-Jiu Song, Wei-Tong Cheng