Patents by Inventor Zhao Wang

Zhao Wang 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: 20130307949
    Abstract: The subject matter disclosed herein relates to optical projection and image detection to detect touch or gesture action.
    Type: Application
    Filed: May 17, 2012
    Publication date: November 21, 2013
    Applicant: Hong Kong Applied Science and Technology Research Institute Co. Ltd.
    Inventors: Wei Zhang, Zhao Wang
  • Publication number: 20130148388
    Abstract: The prevent invention provides an AC-DC flyback converter and a loop compensation method thereof. The AD-DC flyback converter comprises an isolating transformer, a power switch, and a feed control module. The feed control module includes a compensating circuit, a voltage buffer, and an error amplifier having a first resistor and a second resistor, and a pulse width modulation controller. With the AC-DC flyback converter and the loop compensating method, the system stability can be improved and the loop bandwidth can be reduced.
    Type: Application
    Filed: June 16, 2012
    Publication date: June 13, 2013
    Inventors: Zhe YANG, Xianhui DONG, Zhao WANG
  • Publication number: 20130132555
    Abstract: The invention provides a communication system for a power distribution network, which comprises at least two distribution domains, each of the domains includes one management device and at least one electrical device. The management device is configured as connected with the electrical devices within its domain, and is further configured as capable of collect information from the electrical devices. The system also comprises a communication link, which is arranged for the management devices of different domains, and the management devices are configured as capable of directly exchanging information through the link.
    Type: Application
    Filed: August 12, 2010
    Publication date: May 23, 2013
    Applicant: ABB RESEARCH LTD.
    Inventors: Zhao Wang, Bernhard Deck, Jukka Kinnunen
  • Publication number: 20120089262
    Abstract: This specification discloses an intelligent and digitalized process level interface which is referred to herein as an Intelligent Process Interface (IPI). The input of the IPI includes both analog and digital channels and therefore the IPI can be used for substations in transition or retrofit stages with both conventional and non-conventional primary devices. The IPI acts not only as a digitalized interface, but also as an intelligent supervisory and control unit for switching functions. The architecture of the IPI is flexible and allows for the functionality to be distributed to several devices.
    Type: Application
    Filed: October 13, 2011
    Publication date: April 12, 2012
    Applicant: ABB Research Ltd
    Inventors: Zhao WANG, Bernhard Deck, Jianping Wang
  • Publication number: 20120074505
    Abstract: Techniques related to 3D integrated circuits formed on a single wafer are disclosed. According to one embodiment, an integrated circuit comprises a first device forming a first projection area on a wafer and a second device forming a second projection area on the wafer. The first projection area overlaps with the second projection area partially or completely. The area being shared between the two devices refers to the partial or complete overlapping of the projection areas of the two devices. In one embodiment, two or more devices in different layers of the integrated circuit or two or more devices at different depths in a same layer of the integrated circuit may share an area on the same wafer in a certain manner. Thereby, the area of the chip is saved and the chip cost of the integrated circuit is significantly reduced.
    Type: Application
    Filed: December 5, 2011
    Publication date: March 29, 2012
    Inventors: Zhao Wang, Wenbo Tian, Hang Yin
  • Publication number: 20120075638
    Abstract: A system and related methods for automatic or semi-automatic segmentation and quantification of blood vessel structure and physiology, including segmentation and quantification of lumen, guide wire, vessel wall, calcified plaques, fibrous caps, macrophages, metallic and bioresorbable stents are described, and including visualization of results. Calcified plaque segmentation can be used to estimate the distribution of superficial calcification and inform strategies stenting. Volumetric segmentation and quantification of fibrous caps can provide more comprehensive information of the mechanisms behind plaque rupture. Quantification of macrophages can aid diagnosis and prediction of unstable plaque and associated acute coronary events. Automated detection and quantification of metallic and bioresorbable stents can greatly reduce the analysis time and facilitate timely decision making for intervention procedures.
    Type: Application
    Filed: August 2, 2011
    Publication date: March 29, 2012
    Applicant: CASE WESTERN RESERVE UNIVERSITY
    Inventors: Andrew Rollins, David Wilson, Marco Costa, Hiram Bezerra, Zhao Wang
  • Publication number: 20120071524
    Abstract: The present invention relates to novel compounds having anti-cancer activity, methods of making these compounds, and their use for treating cancer and drug-resistant tumors, e.g. melanoma, metastatic melanoma, drug resistant melanoma, prostate cancer and drug resistant prostate cancer.
    Type: Application
    Filed: August 24, 2011
    Publication date: March 22, 2012
    Inventors: Yan Lu, Chien-Ming Li, Zhao Wang, Jianjun Chen, Wei Li, James T. DALTON, Duane D. Miller, Charles Duke, Sunjoo Ahn
  • Publication number: 20120036108
    Abstract: The invention relates generally to archiving data items in an information store. More particularly, the invention provides a computerized method for identifying, in a first information store, a first data item satisfying retention criteria; copying the first data item to a second information store; creating, in the first information store, a second data item containing a subset of the data of the first data item selected based on the data type of the first data item; and replacing the first data item, in the first information store, with the second data item.
    Type: Application
    Filed: September 30, 2011
    Publication date: February 9, 2012
    Inventors: Anand Prahlad, Andreas May, Zhao Wang, Randy Demeno, Tinku Iyer
  • Publication number: 20110316507
    Abstract: Techniques pertaining to multiple-input comparator and power converter designs are disclosed. According to one aspect, the present invention discloses a multiple-input comparator comprising a pair of differential transistors connected by a resister. The gate terminals of the transistor pair serve as the input terminals of the comparator for receiving external voltage for comparison. The terminal of the resistor serves as the current input terminal and is either connected to a current source or a current sink. A power inverter utilizing the multiple-input comparator is also disclosed. The power inverter comprises a power switch driven by a PMW signal, a voltage sampling circuit, an error amplifier and a multiple-input PWM comparator.
    Type: Application
    Filed: June 28, 2010
    Publication date: December 29, 2011
    Inventors: Zhao WANG, Xianhui Dong, Dave Xiaodong Yang
  • Patent number: 8081410
    Abstract: Designs of an overcurrent protection circuit Techniques are disclosed. According to one aspect of the present invention, an overcurrent protection having continuous protection thresholds is provided to efficiently protect a battery from discharging overcurrent especially in all intermediate states.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: December 20, 2011
    Assignees: Vimicro Corporation, Wuxi Vimicro Corporation
    Inventors: Zhao Wang, Hang Yin, Dave Xiao Dong Yang
  • Patent number: 8081146
    Abstract: The present invention discloses a multifunctional driver controller capable to drive one or more voltage-controlled devices or current-controlled devices. According to one embodiment, the multifunctional driver controller comprises a selection unit receiving a control signal, one of a first reference voltage and a second reference voltage, the selection unit selecting either one of the first reference voltage and the second reference voltage per the control signal, and a control circuit receiving a reference voltage from the selection unit and a feedback signal from a load being driven by a controlled analog signal from the control circuit, wherein the controlled analog signal is either a controlled voltage signal or a controlled current signal, the control circuit compares the reference voltage with the feedback signal and adjusts the controlled analog signal in reference to a difference between the reference voltage and the feedback signal until the feedback signal converges to the reference voltage.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: December 20, 2011
    Assignees: Vimicro Corporation, Wuxi Vimicro Corporation
    Inventor: Zhao Wang
  • Patent number: 8055627
    Abstract: The invention relates generally to archiving data items in an information store. More particularly, the invention provides a computerized method for identifying, in a first information store, a first data item satisfying retention criteria; copying the first data item to a second information store; creating, in the first information store, a second data item containing a subset of the data of the first data item selected based on the data type of the first data item; and replacing the first data item, in the first information store, with the second data item.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: November 8, 2011
    Assignee: CommVault Systems, Inc.
    Inventors: Anand Prahlad, Andreas May, Zhao Wang, Randy Demeno, Tinku Iyer
  • Publication number: 20110257196
    Abstract: The present invention relates to novel compounds having anti-cancer activity, methods of making these compounds, and their use for treating cancer and drug-resistant tumors, e.g. melanoma, metastatic melanoma, drug resistant melanoma, prostate cancer and drug resistant prostate cancer.
    Type: Application
    Filed: December 29, 2010
    Publication date: October 20, 2011
    Inventors: Yan Lu, Chien-Ming Li, Zhao Wang, Jianjun Chen, Wei Li, James T. Dalton, Duane D. Miller, Charles Duke, Sunjoo Ahn
  • Publication number: 20110197805
    Abstract: The bookmark being described is shaped like a triangle with an opening on the longest side. The edge of a book's inner page can be inserted into the opening and therefore provides the reader with a bookmark. Due to the specific shape, it can prevent the bookmark from fallen off the book. The bookmark can be easily taken off and can be repeatedly used for many times. It will not leave any damages to the paper and it is easy to manufacture.
    Type: Application
    Filed: February 18, 2010
    Publication date: August 18, 2011
    Inventor: Zhao Wang
  • Patent number: 7986499
    Abstract: Techniques pertaining to a voltage regulator with a current limiting circuit having low quiescent current are disclosed.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: July 26, 2011
    Assignees: Vimicro Corporation, Wuxi Vimicro Corporation
    Inventors: Zhao Wang, Hang Yin, Wenbo Tian
  • Publication number: 20110115308
    Abstract: A feeder automation system and a method for operating the feeder automation system are disclosed. The feeder automation system comprises a first domain comprising a first slave station; a second domain comprising a second slave station; and a tie-switch provided between the first domain and the second domain. The first slave station is adapted to operate the tie-switch directly, and the second slave station is adapted to operate the tie-switch through the first slave station. When a fault occurs in the system, the first slave station and the second slave station cooperate with each other to perform fault detection, fault isolation, and fault restoration etc. without interacting with a master station.
    Type: Application
    Filed: July 21, 2008
    Publication date: May 19, 2011
    Inventors: Zhao Wang, Lei Jing, Wenxiao Ma, Gang Wang
  • Patent number: 7889010
    Abstract: An improved compensation circuit with loop compensation is disclosed. The compensation circuit can get an equivalent large capacitance by amplifying a small capacitor. Hence, the compensation circuit can get a good compensation effect with a minimum chip area, hence lower cost.
    Type: Grant
    Filed: May 31, 2009
    Date of Patent: February 15, 2011
    Assignees: Vimicro Corporation, Wuxi Vimicro Corporation
    Inventor: Zhao Wang
  • Publication number: 20100302822
    Abstract: Designs of flyback power converters are described. According to one aspect of the designs, a power converter includes a primary side including a primary winding of a transformer coupled to an input voltage and a primary switch for switching on or off the primary winding, a secondary side including a secondary winding of the transformer for generating an output voltage, and a loop controller configured to sample a feedback voltage representative of the output voltage, generate a gate signal with a fixed falling edge and an adjustable rising edge to drive the primary switch, and adjust a duty cycle of the gate signal by adjusting the rising edge of the gate signal until the feedback voltage converges to a reference voltage.
    Type: Application
    Filed: May 27, 2010
    Publication date: December 2, 2010
    Inventors: Zhao WANG, Xianhui Dong, Zhe Yang, Xiaodong Yang
  • Publication number: 20100264881
    Abstract: A battery protection circuit with quickly testable design is disclosed. According to one embodiment, the battery protection circuit includes a battery voltage detection circuit configured to detect a battery voltage, output an effective trigger signal if the battery voltage reaches a voltage protection threshold, and output an ineffective trigger signal otherwise; a delay circuit configured to receive the trigger signal, output an effective status signal if the trigger signal is maintained effective continuously over a period of time, and outputs an ineffective status signal otherwise; a protection driver configured to receive the trigger signal and the status signal, enter a driving state when both the trigger signal and the status signal are effective, enter a non-driving state when both the trigger signal and the status signal are ineffective, and enter a ready driving state when the trigger signal is effective and the status signal is ineffective.
    Type: Application
    Filed: July 22, 2009
    Publication date: October 21, 2010
    Inventors: Hang Yin, Zhao Wang, Wenbo Tian
  • Publication number: 20100259237
    Abstract: An improved compensation circuit with loop compensation is disclosed. The compensation circuit can get an equivalent large capacitance by amplifying a small capacitor. Hence, the compensation circuit can get a good compensation effect with a minimum chip area, hence lower cost.
    Type: Application
    Filed: May 31, 2009
    Publication date: October 14, 2010
    Inventor: Zhao Wang