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).
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Patent number: 8963836Abstract: 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: GrantFiled: August 16, 2011Date of Patent: February 24, 2015Assignee: Tencent Technology (Shenzhen) Company LimitedInventors: Tong Cheng, Shuai Yue
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Publication number: 20150048750Abstract: 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: ApplicationFiled: July 17, 2014Publication date: February 19, 2015Applicant: RICHTEK TECHNOLOGY CORP.Inventors: Tong-Cheng JAO, Yi-Wei LEE, Isaac Y. CHEN
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Publication number: 20140316735Abstract: 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: ApplicationFiled: January 13, 2014Publication date: October 23, 2014Applicant: RICHTEK TECHNOLOGY CORPORATIONInventors: Tong-Cheng Jao, Isaac Y. Chen
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Publication number: 20140209365Abstract: 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: ApplicationFiled: September 4, 2013Publication date: July 31, 2014Applicant: POLYTRONICS TECHNOLOGY CORP.Inventors: Tong Cheng TSAI, Wen Feng LEE, Chun Teng TSENG, Chi Jen SU, Yi An SHA
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Publication number: 20130295124Abstract: 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: ApplicationFiled: July 27, 2010Publication date: November 7, 2013Applicants: New Jersey Medical School, Xiamen University, Beijing Wantai Biological Pharmacy Enterprise Co.,Inventors: Hua Zhu, Yimin Li, Ningshao Xia, Tong Cheng, Xiangzhong Ye
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Publication number: 20130162532Abstract: 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: ApplicationFiled: August 16, 2011Publication date: June 27, 2013Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Tong Cheng, Shuai Yue
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Patent number: 8421584Abstract: 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: GrantFiled: January 17, 2012Date of Patent: April 16, 2013Assignee: Polytronics Technology Corp.Inventors: Tong Cheng Tsai, Yi An Sha, David Shau Chew Wang, Fu Hua Chu
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Publication number: 20120301449Abstract: 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: ApplicationFiled: August 13, 2012Publication date: November 29, 2012Applicants: YANG SHENG TANG COMPANY LIMITED, XIAMEN UNIVERSITYInventors: TONG CHENG, TAO ZHANG, YALI ZHANG, JI MIAO, JUN ZHANG, NINGSHAO XIA
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Publication number: 20120182118Abstract: 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: ApplicationFiled: January 17, 2012Publication date: July 19, 2012Applicant: Polytronics Technology Corp.Inventors: Tong Cheng Tsai, Yi An Sha, David Shau Chew Wang, Fu Hua Chu
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Publication number: 20110243904Abstract: 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: ApplicationFiled: June 2, 2008Publication date: October 6, 2011Applicants: XIAMEN UNIVERSITY, BEIJING WANTAI BIOLOGICAL PHARMACY ENTERPRISE CO., LTD.Inventors: Tong Cheng, Tao Zhang, Yali Zhang, Ji Miao, Jun Zhang, Ningshao Xia
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Patent number: 7965479Abstract: 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: GrantFiled: September 19, 2007Date of Patent: June 21, 2011Assignee: Polytronics Technology CorporationInventors: Pao Hsuan Chen, Ching Han Yu, Tong Cheng Tsai
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Patent number: 7708912Abstract: 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: GrantFiled: June 16, 2008Date of Patent: May 4, 2010Assignee: Polytronics Technology CorporationInventors: Pao Hsuan Chen, David Shau Chew Wang, Tong Cheng Tsai
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Publication number: 20090309074Abstract: 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: ApplicationFiled: June 16, 2008Publication date: December 17, 2009Applicant: POLYTRONICS TECHNOLOGY CORPORATIONInventors: Pao Hsuan Chen, David Shau Chew Wang, Tong Cheng Tsai
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Publication number: 20090231763Abstract: 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: ApplicationFiled: March 12, 2008Publication date: September 17, 2009Applicant: POLYTRONICS TECHNOLOGY CORPORATIONInventors: Pao Hsuan Chen, David Shau Chew Wang, Ching Han Yu, Tong Cheng Tsai
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Publication number: 20090224213Abstract: 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: ApplicationFiled: March 6, 2008Publication date: September 10, 2009Applicant: POLYTRONICS TECHNOLOGY CORPORATIONInventors: Pao Hsuan Chen, David Shau Chew Wang, Ching Han Yu, Tong Cheng Tsai
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Publication number: 20080305100Abstract: 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: ApplicationFiled: July 25, 2005Publication date: December 11, 2008Inventors: Berislav V. Zlokovic, Dong Liu, Tong Cheng, Huang Guo
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Patent number: 7369094Abstract: 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: GrantFiled: September 26, 2006Date of Patent: May 6, 2008Assignee: Smartant Telecom Co., Ltd.Inventors: Jia-Jiu Song, Wei-Tong Cheng
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Publication number: 20080100981Abstract: 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: ApplicationFiled: September 19, 2007Publication date: May 1, 2008Inventors: Pao Hsuan CHEN, Ching Han Yu, Tong Cheng Tsai
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Publication number: 20080074340Abstract: 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: ApplicationFiled: September 26, 2006Publication date: March 27, 2008Applicant: SmartAnt Telecom Co., Ltd.Inventors: Jia-Jiu Song, Wei-Tong Cheng
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Patent number: 7215285Abstract: 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: GrantFiled: June 29, 2005Date of Patent: May 8, 2007Assignee: Smartant Telecom Co., Ltd.Inventors: Jia-Jiu Song, Wei-Tong Cheng