Patents by Inventor Wei Chao

Wei Chao 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: 20140157411
    Abstract: A safety protection method which is performed with a controller includes steps of providing an index table, calling one of the APIs (API), filtering the called API based on a predetermined condition, and blocking the API if the API confirms the predetermined condition. Furthermore, a safety protection device is also disclosed herein.
    Type: Application
    Filed: December 17, 2012
    Publication date: June 5, 2014
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Wei-Chao HSU, Fu-Hau HSU, Chieh-Wen CHEN, Ju-Hsuan HE
  • Patent number: 8653883
    Abstract: A voltage doubler and an oscillating control signal generator controlling a charge pump (powered by a first voltage to provide a second voltage) of the voltage doubler are disclosed. The oscillating control signal generator includes a first input terminal receiving a fundamental oscillation signal, a second input terminal receiving a comparison result showing whether the second voltage is greater than a target value, a third input terminal operative to obtain an electric current consumption status at an output terminal of the charge pump, and an output terminal outputting an oscillating control signal for the control of the charge pump. Further, the oscillating control signal generator includes a logic circuit. The logic circuit generates the oscillating control signal by selectively blocking status changes of the fundamental oscillation signal according to the comparison result and the electric current consumption status.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: February 18, 2014
    Assignee: Nanya Technology Corporation
    Inventor: Kuang-Wei Chao
  • Patent number: 8634560
    Abstract: A server device initiates a traffic encapsulation key (TEK) re-key sequence for a group virtual private network (VPN), based on an upcoming expiration time for an existing TEK. The server device sends, via a push message during a first time period immediately after the initiating, a new TEK to members of the group VPN. The server device receives, during a second time period that immediately follows the first time period, a pull request, for the new TEK, from one of the members of the group VPN, and sends, to the one of the members, the new TEK, where the re-key sequence transitions all the members of the group VPN from the existing TEK key to the new TEK key before the expiration time for the existing TEK.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: January 21, 2014
    Assignee: Juniper Networks, Inc.
    Inventors: Anthony Ng, Chih-Wei Chao, Suresh Melam, I-Wen Michelle Hsiung
  • Publication number: 20140009190
    Abstract: A current providing circuit, for providing an output current at an output terminal, comprising: a current providing module, coupled to a first predetermined voltage level, for providing the output current according to the first predetermined voltage level and a control voltage transmitted to the current providing module; and a control voltage generating module, for generating the control voltage corresponding to the first predetermined voltage level and a threshold voltage of the current providing module.
    Type: Application
    Filed: July 9, 2012
    Publication date: January 9, 2014
    Inventor: Kuang-Wei Chao
  • Patent number: 8603366
    Abstract: In an electric contact material of silver matrix capable of resisting arc erosion and containing no cadmium-composite, an Ag—(SnO2+In2O3) composite containing 9˜11% of (SnO2+In2O3) or an Ag—Cu oxide, composite containing 15˜25% of Cu oxide is used. The electrical contact material has a contact resistance of 5˜60 milliohms (mohm) and an arc erosion resistance capability up to 2*103˜10*103 times provided that the Vickers hardness (Hv) of the material is 100˜150, the measured current is 1˜5 amperes, and the measured voltage is 10˜20 volts. Two electrical contacts maintain an arc erosion resisting capability at the condition of a low contact resistance when the electrical contact material is formed on a surface of a metal substrate of an electric connector.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: December 10, 2013
    Assignee: C.C.P. Contact Probes Co., Ltd.
    Inventors: Chin-Wei Hung, Wen-Yuan Chiang, Wei-Chu Chen, Chih-Jung Wang, Wen-Ying Cheng, Bor-Chen Tsai, Wei-Chao Wang
  • Publication number: 20130307612
    Abstract: A voltage doubler and an oscillating control signal generator controlling a charge pump (powered by a first voltage to provide a second voltage) of the voltage doubler are disclosed. The oscillating control signal generator includes a first input terminal receiving a fundamental oscillation signal, a second input terminal receiving a comparison result showing whether the second voltage is greater than a target value, a third input terminal operative to obtain an electric current consumption status at an output terminal of the charge pump, and an output terminal outputting an oscillating control signal for the control of the charge pump. Further, the oscillating control signal generator includes a logic circuit. The logic circuit generates the oscillating control signal by selectively blocking status changes of the fundamental oscillation signal according to the comparison result and the electric current consumption status.
    Type: Application
    Filed: May 15, 2012
    Publication date: November 21, 2013
    Applicant: NANYA TECHNOLOGY CORPORATION
    Inventor: Kuang-Wei Chao
  • Patent number: 8587273
    Abstract: A voltage generator includes a controllable voltage divider, a pull-up circuit and a first pull-down circuit. The controllable voltage divider is utilized for generating an output voltage at an output node of the controllable voltage divider according to a first reference voltage, a second reference voltage, and a control signal, wherein the second reference voltage is lower than the first reference voltage. The pull-up circuit is coupled to the output node of the controllable voltage divider and the first reference voltage, and is utilized for selectively connecting the first reference voltage to the output node of the controllable voltage divider. The first pull-down circuit is coupled to the output node of the controllable voltage divider and the second reference voltage, and is utilized for selectively connecting the second reference voltage to the output node of the controllable voltage divider.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: November 19, 2013
    Assignee: Nanya Technology Corp.
    Inventors: Chih-Jen Chen, Kuang-Wei Chao
  • Publication number: 20130300910
    Abstract: An apparatus, method and computer program product for presenting burst images are provided. The apparatus may include a processor that may be configured to receive a plurality of burst images. Each burst image may differ from the other burst images based on a variable parameter. The processor may also be configured to provide for a presentation of a sample burst image. In this regard, the sample burst image may be one of the plurality of burst images. The processor may be further configured to receive a selected location within the presentation of the sample burst image and provide for a presentation of a plurality of burst image fragments associated with each of the plurality of burst images. In this regard, the burst image fragments may be portions of each of the burst images, where the areas of each burst image may be determined based on the selected location.
    Type: Application
    Filed: July 17, 2013
    Publication date: November 14, 2013
    Inventors: Marc Levoy, Natasha Gelfand, Wei-Chao Chen, Kari Antero Pulli
  • Publication number: 20130291566
    Abstract: The invention relates to a pulse tube refrigerator with an automatic gas flow and phase regulating device, comprising a helium compressor (1), an air distribution valve (11), a drive controller (9), a drive lead (10), a temperature sensor, a temperature measuring lead (8), a heat regenerator, a first-stage pulse tube (5), a second-stage pulse tube (6), a first-stage air reservoir (14) and a second-stage air reservoir (15), wherein said air distribution valve (11) comprises eight independent valves of a first valve (21), a second valve (22), a third valve (23), a fourth valve (24), a fifth valve (25), a sixth valve (26), a seventh valve (27) and an eighth valve (28).
    Type: Application
    Filed: January 16, 2012
    Publication date: November 7, 2013
    Applicant: NANJING COOLTECH CRYOGENIC TECHNOLOGY CO., LTD.
    Inventors: Jinlin Gao, Ao Li, Wenqing Dong, Wei Chao, Jie Chen
  • Patent number: 8570728
    Abstract: An electronic device includes a frame, a display mounted within the frame, a rear cover, and two switch mechanisms slidably connected to two lateral surfaces of the frame. The rear cover includes at least two opposite hooks on two opposite flanges and two opposite recessed portions on the bottom of two opposite sides thereof, respectively. Each of the two switch mechanisms includes at least one hook portion engaged with a corresponding one of the at least two hooks, and a handle exposed by each of the recessed portions. The handles are forced by an external force to switch the at least two hooks and the at least two hook portions between an engagement state and a disengagement state.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: October 29, 2013
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Shih-Wei Chao, Shih-Wen Chiang, Yen-Chi Tsai, Po-Yen Hsu
  • Publication number: 20130278601
    Abstract: A method for processing texture mapping by biasing level of detail (LOD) according to image content includes: a texture request for fetching a target texel is received. The texture request includes a target texture coordinate at a target LOD of a target texture mipmap corresponding to the target texel. A target level of content (LOC) bias map corresponding to the target texture mipmap is looked up according to the target texture coordinate and the target LOD to fetch a target LOC bias value corresponding to the target texture coordinate at the target LOD. A replacement LOD is calculated according to the target LOD and the target LOC bias value. A replacement texel is fetched at a corresponding coordinate, which corresponds to the target texture coordinate, at the replacement LOD of the target texture mipmap. Texture filtering is processed according to the replacement texel.
    Type: Application
    Filed: August 30, 2012
    Publication date: October 24, 2013
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Wei-Chao Chen, Chia-Ming Chang
  • Patent number: 8558475
    Abstract: The invention provides a lamp circuit of a light emitting device, which comprises a capacitor, a rectification unit, a current limiting unit, and a light emitting device. The capacitor is connected to the two lamp contacts of the lamp holder of the electrical ballast to change the resonant frequency of the resonant circuit of the electrical ballast. The rectification unit is connected to the capacitor, and utilized to rectify a sine-wave voltage to a direct current voltage. The current limiting unit is connected to the rectification unit, outputting a direct current corresponding to the direct current voltage. The light emitting device is connected to the current limiting unit and the rectification unit to generate a light source. With the invention, the light emitting device can be installed directly in a lamp holder of a conventional fluorescent lamp.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: October 15, 2013
    Assignee: Advanced-Connectek Inc.
    Inventors: Chung-Hung Yu, Ta-Wei Chao, Chien-Nan Pan
  • Patent number: 8553403
    Abstract: An exemplary foldable electronic device includes a processing portion, a keyboard, and a latching member. The processing portion includes a main housing. The keyboard is rotatably connected to the processing portion. The keyboard includes a metal housing. The latching member is arranged in the main housing. The latching member includes a magnet. When the keyboard abuts against the processing portion, the attraction force between the magnet and the metal housing is greater than the force of the gravity acting on the keyboard, the keyboard is attached to the processing portion.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: October 8, 2013
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Yu-Lang Chang, Shih-Wei Chao, Cheng-Min Hung, Wei-Yu Wang
  • Publication number: 20130248373
    Abstract: A method for anodizing and dyeing a metallic article including a first dipped end, a second dipped end opposite to the first dipped end, and a decorated surface located between the first dipped end and the second dipped end, includes steps as follows: anodizing the metallic article to form an anodization layer on the decorated surface by an anodizing treatment, in which the anodization layer is porous with a number of holes, an immersion time of the decorated surface immersed in the electrolyte solution changes gradually from the first dipped end toward the second dipped end, and a depth of the plurality of holes of the anodization layer after the anodizing step thereby changes gradually from the first dipped end toward the second dipped end; and coloring the metallic article sealed in a dyeing treatment.
    Type: Application
    Filed: March 19, 2013
    Publication date: September 26, 2013
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., FU TAI HUA INDUSTRY (SHENZHEN) CO., LTD.
    Inventors: LI-MING SHEN, KAI-BO CAO, ZHI-YONG FAN, WEI-CHAO LI, JIA-XIONG WANG
  • Publication number: 20130248372
    Abstract: A method for anodizing and dyeing a metallic article including a decorated surface to be dyed, includes steps as follows: anodizing the metallic article to form an anodization layer on the decorated surface by an anodizing treatment, in which the anodization layer is porous with a number of holes; sealing the anodization layer of the metallic article anodized by a first sealing treatment in a first sealing solution, in which a contacting time of the anodization layer and the first sealing solution changes gradually along a predetermined direction, and thereby a depth of the holes of the anodization layer after sealing changes gradually along the predetermined direction; and coloring the metallic article sealed in a dyeing treatment.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 26, 2013
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., FU TAI HUA INDUSTRY (SHENZHEN) CO., LTD.
    Inventors: LI-MING SHEN, KAI-BO CAO, ZHI-YONG FAN, WEI-CHAO LI, JIA-XIONG WANG
  • Publication number: 20130238794
    Abstract: A light-weight resilient mechanism is used to synchronize server secure keying data with member devices in a highly-scalable distributed group virtual private network (VPN). A server device generates an initial secure keying data set, for the VPN, that includes a first version identifier, and sends, to member devices and via point-to-point messages, the secure keying data set. The server device sends, to the member devices, heartbeat push messages including the first version identifier. The server device generates an updated secure keying data set with a second version identifier and sends, to the member devices, a key push message that includes the updated data set. The server device sends, to the member devices, heartbeat push messages including the second version identifier. Member devices may use the first and second version identifiers to confirm that secure keying data sets are current and quickly identify if updates are missed.
    Type: Application
    Filed: April 30, 2013
    Publication date: September 12, 2013
    Applicant: Juniper Networks, Inc
    Inventors: Anthony NG, Chih-Wei CHAO, Nagavenkata Suresh MELAM, Nilesh Kumar MAHESHWARI
  • Patent number: 8514930
    Abstract: A phase detection apparatus includes: a motion detector, for determining whether an image data corresponds to a still image data; an image characteristic detector, coupled to the motion detector, for detecting a characteristic image data having cross color phenomenon when the image data corresponds to a still image data; a phase testing module, coupled to the image characteristic detector, for processing the characteristic image data according to a plurality of phases to obtain a plurality of testing results; and a phase determining module, for selecting a phase from the plurality of phases according to the plurality of testing results.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: August 20, 2013
    Assignee: Realtek Semiconductor Corp.
    Inventors: Bing-Jhe Chen, Po-Wei Chao
  • Publication number: 20130210977
    Abstract: The invention generally relates to an aqueous thermoplastic polymer dispersion containing ingredients that include, among other things, a dispersion desensitizer; methods of use thereof, and articles manufactured therefrom.
    Type: Application
    Filed: September 29, 2010
    Publication date: August 15, 2013
    Applicants: ROHM AND HAAS COMPANY, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Yunfei Yan, Wei Chao Gu, Dong Wang, Wenyu Shang, Gary M. Strandburg
  • Patent number: 8508923
    Abstract: An electronic device includes an enclosure. The enclosure includes a main base and a cover rotatably secured to the main base. The main base includes a bottom plate. The cover includes a first section and a second section rotatably connected to the first section. The second section is rotatable relative to the first section between a first position, where the second section is at an acute angle to the first section; and a second position, where the second section is substantially parallel to the bottom plate, and the first section and the second section are located on a same plane and covers the main base.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: August 13, 2013
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Shih-Wei Chao
  • Patent number: 8508660
    Abstract: The present invention provides de-interlacing methods and related apparatuses. One of the proposed de-interlacing methods includes edge detection of a target region corresponding to a target position. When the target region is assumed to include an edge that is considered stationary, and if the target position is on a stationary side of the edge, then a pixel value for the target position is generated by inter-field interpolation.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: August 13, 2013
    Assignee: Realtek Semiconductor Corp.
    Inventors: Ching-Hua Chang, Po-Wei Chao