Patents by Inventor Xuefeng Wang

Xuefeng 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: 20120127843
    Abstract: Techniques are provided for controlling the reading of optical data from a master disk in a holographic replication system. Imperfections in the master disk or movement of the disk during a recording process may cause source beams to deviate from target data tracks. In some embodiments, a detector system is used to determine the focus and alignment of the source beams on the master disk, as well as the tilt and rotation of the disk with respect to the holographic replication system. The detector system may detect deviations in the intensity distribution of the reflections of the source beams and generate an error signal corresponding to focusing, tracking, tilt, and/or rotational errors. Servo-mechanical devices may actuate optical components to compensate for such errors.
    Type: Application
    Filed: November 18, 2010
    Publication date: May 24, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Xuefeng Wang, Pierino Gianni Bonanni, Xiaolei Shi, Zhiyuan Ren, Hua Xia, Victor Petrovich Ostroverkhov, Xinghua Wang
  • Publication number: 20120092980
    Abstract: The present techniques provide methods and systems for recording micro-holograms on a holographic disk using a plurality of counter-propagating light beams in parallel. The parallel counter-propagating light beams overlap to form interference patterns on a data layer and over multiple data tracks in the holographic disk. Rotating the disk enables the parallel recording of micro-holograms over multiple data tracks, thus reducing recording time. Further, the illumination pattern may include illuminated spots and non-illuminated regions, such that each illumination spot may cover a relatively small fraction of the data layer plane, possibly controlling the depth spread of the recorded micro-hologram. In some embodiments, data in the parallel signal beams may be retrieved from a master holographic disk or may be modulated into the parallel signal beams.
    Type: Application
    Filed: October 19, 2010
    Publication date: April 19, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Victor Petrovich Ostroverkhov, Pierino Gianni Bonanni, Xiaolei Shi, Zhiyuan Ren, Hua Xia, Xuefeng Wang, Xinghua Wang
  • Patent number: 8154975
    Abstract: The present techniques provide methods and systems for controlling the recording of micro-holograms using multiple counter-propagating light beams over multiple data tracks of a holographic disk. Imperfections in a holographic disk or movement of the disk during a recording process may cause signal beams to deviate from target data tracks. In some embodiments, a tracking beam is directed to a reference layer in the disk. Deviation of the reference beam from a target groove in the reference layer may be indicative of tracking errors. A detector may detect reflections of the tracking beam and generate an error signal in response to detected tracking errors. Servo-mechanical devices may actuate (e.g., radially, tangentially, or axially translate, rotate, and/or tilt) one or more optical components through which the counter-propagating light beams are emitted to compensate for tracking errors.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: April 10, 2012
    Assignee: General Electric Company
    Inventors: Xuefeng Wang, Pierino Gianni Bonanni, Xiaolei Shi, Zhiyuan Ren, Hua Xia, Victor Petrovich Ostroverkhov, Xinghua Wang
  • Publication number: 20120026855
    Abstract: A method for processing information is provided. The method includes directing a laser beam to a first track of a first layer of a holographic storage medium. The method also includes recording a base voltage based on a look-up table. The method includes directing the laser beam to a target track in the first layer, based on position information in tracks. Further, the method includes recording an offset voltage for the target track into the look-up table. Still further, the method includes directing the laser beam to a target layer based on position information in vertical wobbles. The method also includes recording an offset voltage for the target layer into the look-up table. Finally, the method includes determining a final voltage based on the look-up table and applying the final voltage to an actuator for moving the laser beam to a final target position in the holographic storage medium for recording and retrieval of information.
    Type: Application
    Filed: July 29, 2010
    Publication date: February 2, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Xiaohong Li, Xuefeng Wang, Zhiyuan Ren, John Erik Hershey, John Anderson Fergus Ross
  • Patent number: 8107333
    Abstract: Provided are methods and systems of encoding and decoding techniques in an optical storage system having a multi-head detector. In one embodiment, source data may be encoded using error correction coding (e.g., turbo coding) techniques, and the encoded data may be interleaved and distributed to more than one detector head of the multi-head detector. Data recorded in an optical disc may be retrieved by the multi-head detector, and a read data from more than one detector head may be concurrently decoded to retrieve estimates of the original information in the source data. Further, more than one encoder/decoder may be used, and each encoder/decoder may encode or decode data from multiple data heads. Some embodiments also include replicating multiple discs.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: January 31, 2012
    Assignee: General Electric Company
    Inventors: John Anderson Fergus Ross, John Erik Hershey, Xiaolei Shi, Xuefeng Wang
  • Patent number: 8093971
    Abstract: A micro electromechanical system switch having an electrical pathway is presented. The switch includes a first portion and a second portion. The second portion is offset to a zero overlap position with respect to the first portion when the switch is in open position (or in the closed position depending on the switch architecture). The switch further includes an actuator for moving the first portion and the second portion into contact.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: January 10, 2012
    Assignee: General Electric Company
    Inventors: Xuefeng Wang, Alex David Corwin, Bo Li, Kanakasabapathi Subramanian, Kuna Venkat Satya Rama Kishore
  • Patent number: 8072585
    Abstract: A multi-modal data acquisition system for detecting target material on a biological reaction surface, the system comprising a radiation source for generating an incoming beam that impinges on the biological reaction surface at an oblique incidence angle and produces a reflected beam, an interferometric detector for detecting an interferometric signal from the illuminated surface, the reflected beam being directed to the interferometric detector, a fluorescence detector for detecting a fluorescence signal from the illuminated surface; the fluorescence detector being positioned to substantially minimize the incidence of the reflected beam; and a processing system for receiving the interferometric and fluorescence signals and determining the presence or absence of target material on the biological reaction surface. A reaction surface conditioned for the simultaneous collection of fluorescence, interferometric and other signals.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: December 6, 2011
    Assignee: Purdue Research Foundation
    Inventors: Xuefeng Wang, David D. Nolte, Manoj Varma, Brian Weichel, Timothy Norwood, Fouad Sayegh, Ming Zhao
  • Publication number: 20110296336
    Abstract: Systems and methods for displaying tab elements representing viewable page elements. A set of one or more main tabs are displayed on a first portion of a display, each main tab defining a link to a database object stored in a database. A user selection of a first one of the main tabs is received (e.g., to determine which tab provides default display), and two or more side tabs are displayed in a first, default order on a second portion of the display, each said side tab defining a link to an element or portion of a first object. In certain aspects, a user selection of a new order for the two or more side tabs is received, and thereafter the two or more side tabs are displayed in the new order, and the new order is stored to the database, wherein upon later access of the first object by the user, the two or more side tabs are automatically displayed in the new order.
    Type: Application
    Filed: April 26, 2011
    Publication date: December 1, 2011
    Applicant: salesforce.com,inc.
    Inventors: Margaret Law, Rashmi Channarayapattna, Jason Ellis, Anshu Agarwal, Xuefeng Wang
  • Publication number: 20110267933
    Abstract: Provided are methods and systems of encoding and decoding techniques in an optical storage system having a multi-head detector. In one embodiment, source data may be encoded using error correction coding (e.g., turbo coding) techniques, and the encoded data may be interleaved and distributed to more than one detector head of the multi-head detector. Data recorded in an optical disc may be retrieved by the multi-head detector, and a read data from more than one detector head may be concurrently decoded to retrieve estimates of the original information in the source data. Further, more than one encoder/decoder may be used, and each encoder/decoder may encode or decode data from multiple data heads. Some embodiments also include replicating multiple discs.
    Type: Application
    Filed: April 28, 2010
    Publication date: November 3, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: John Anderson Fergus Ross, John Erik Hershey, Xiaolei Shi, Xuefeng Wang
  • Publication number: 20110242958
    Abstract: A system for processing information is provided. The system includes multiple micro-holograms contained in multiple volumes arranged along multiple tracks in one or more storage mediums. Each of the micro-hologram includes a data. The system also includes one or more pick-up head devices with optical lenses for directing laser beams on the multiple tracks. Further, the system includes a subsystem for arranging the one or more pick-up head devices for recording and retrieving of the data from the one or more storage mediums.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 6, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Xiaolei Shi, John Erik Hershey, John Anderson Fergus Ross, Brian Lee Lawrence, Xuefeng Wang, Victor Petrovich Ostroverkhov, Erik Solhjell, Rolf Jahren
  • Publication number: 20110129863
    Abstract: Methods and systems for processing samples fixed to a porous substrate generally comprising, a compressor defining one or more fluid isolation areas, a support, for the porous substrate, having an opening corresponding to one or more of the fluid isolation areas of the compressor, an actuator that causes at least a portion of the compressor to press against the porous substrate, a fluid inlet having access to the fluid isolation area at least when the compressor is pressed against the porous substrate, and a fluid outlet to receive fluid, through the opening in the support corresponding to the fluid isolation area of the compressor, at least when the compressor is pressed against the porous substrate.
    Type: Application
    Filed: December 2, 2009
    Publication date: June 2, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Philip Alexander Shoemaker, Weston Blaine Griffin, Erin Jean Finehout, Xuefeng Wang, Kashan Ali Shaikh, Greg Darryl Goddard
  • Patent number: 7928333
    Abstract: A device, such as a switch structure, is provided, the device including a contact and a conductive element. The conductive element can be configured to be selectively moveable between a non-contacting position, in which the conductive element is separated from the contact (in some cases by a distance less than or equal to about 4 ?m, and in others by less than or equal to about 1 ?m), and a contacting position, in which the conductive element contacts and establishes electrical communication with the contact. When the conductive element is disposed in the non-contacting position, the contact and the conductive element can be configured to support an electric field therebetween with a magnitude of greater than 320 V ?m?1 and/or a potential difference of about 330 V or more.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: April 19, 2011
    Assignee: General Electric Company
    Inventors: Xuefeng Wang, Marco Francesco Aimi, Shubhra Bansal, Christopher Fred Keimel, Kuna Venkat Satya Rama Kishore, Kanakasabapathi Subramanian
  • Publication number: 20110075537
    Abstract: An improved holographic data storage disc is provided. The holographic data storage disc includes multiple multimedia content, wherein at least one of the multimedia is locked via one or more cryptographic keys.
    Type: Application
    Filed: September 25, 2009
    Publication date: March 31, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: John Erik Hershey, Richard Louis Zinser, John Anderson Fergus Ross, Frederick Wilson Wheeler, Xuefeng Wang
  • Publication number: 20110036690
    Abstract: A device, such as a switch structure, is provided, the device including a contact and a conductive element. The conductive element can be configured to be selectively moveable between a non-contacting position, in which the conductive element is separated from the contact (in some cases by a distance less than or equal to about 4 ?m, and in others by less than or equal to about 1 ?m), and a contacting position, in which the conductive element contacts and establishes electrical communication with the contact. When the conductive element is disposed in the non-contacting position, the contact and the conductive element can be configured to support an electric field therebetween with a magnitude of greater than 320 V ?m?1 and/or a potential difference of about 330 V or more.
    Type: Application
    Filed: August 14, 2009
    Publication date: February 17, 2011
    Applicant: General Electric Company
    Inventors: Xuefeng Wang, Marco Francesco Aimi, Shubhra Bansal, Christopher Fred Keimel, Kuna Venkat Satya Rama Kishore, Kanakasabapathi Subramanian
  • Publication number: 20110003864
    Abstract: Crystalline pyridone compound, which is the white needle crystal containing no water and other crystallization solvents. Its unit cell belongs to monoclinic system and has space group of P21/n, wherein a=3.8512(2), b=20.2535(12), c=12.1628(6) ?, ?=92.850(5)° and crystal cell volume V=947.53(9) ?3. Pyridone compound crystal of this form has the needed properties for preparing or making treatment compositions in large scale. It can be used for treating organs fibrosis of liver, kidney, lung and etc. and reducing skin scars.
    Type: Application
    Filed: March 10, 2009
    Publication date: January 6, 2011
    Applicant: HEC GROUP
    Inventors: Jiamei Chen, Tongbu Lu, Song Chen, Jinghui Cai, Zhaolin Fu, Zhe He, Xuefeng Wang, Chaozhi Wang, Yonge Liu, Lijian Tao, Gaoyun Hu
  • Publication number: 20100260930
    Abstract: A detachable framework used for winding optical fiber coils and a method of producing optical fiber coils with this framework. A framework with a suitable structure is designed considering comprehensively three factors, i.e., the window ratio of an optical fiber coil, the precision of an optical fiber gyro and the easy detachment of the framework from the optical fiber coil. A surface treatment with the framework is performed by coating a layer of thermosol on the surface of the framework so the optical fiber coil can be easily detached from the framework after curing. The required length of optical fiber is winded around the optical fiber coil framework, accompanying with vacuum pressure impregnating with curing adhesive after winding and optical fiber coil curing subsequently. The framework is taken off from the optical fiber coil under the heating circumstances, thereby completing production of the non-framework optical fiber coil.
    Type: Application
    Filed: February 6, 2009
    Publication date: October 14, 2010
    Applicant: Beijing Aerospace Times Optical-Electronic Technology Co., Ltd.
    Inventors: Wei Wang, Jing Li, Qingsheng Yang, Xuefeng Wang, Jinquan Tan
  • Patent number: 7787126
    Abstract: A detection system for detecting target material is provided. The system comprises a photonic structure having a reflectance-band and associated side bands; an illumination source for illuminating at a wavelength in at least one of an edge of the reflectance-band and the side bands of the photonic structure and for generating a return beam; a detector system having an intensity-sensitive channel configured to detect an in-line signal from the return beam and a phase-sensitive channel configured to detect a differential phase contrast signal from the return beam; and a processing system for receiving and adding in quadrature the in-line signal and the differential phase contrast signal to generate a joint signal, and for determining one of the presence or the absence of the target material on the photonic structure using the joint signal.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: August 31, 2010
    Assignee: Purdue Research Foundation
    Inventors: David D. Nolte, Xuefeng Wang
  • Patent number: 7754765
    Abstract: In various aspects, the invention provides methods for treating ocular inflammation using copper chelating compounds, such as compounds other than D-penicillamine. In some embodiments, such compounds may be polyamines, such as triethylenetetramine or tetraethylenepentamine. For example, the present invention provides methods for treating inflammation secondary to ocular laser therapy.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: July 13, 2010
    Assignee: Radical Vision Therapeutics Inc
    Inventors: Xuefeng Wang, Jing Z. Cui, Joanne A. Matsubara
  • Publication number: 20100156577
    Abstract: A micro electro-mechanical system switch is presented. The switch includes a base substrate having a support surface. An actuating surface having a notch and an electrical contact surface having an extension is provided. The extension is disposed within the notch. A beam is attached to the base substrate. The beam includes an actuatable free end that is configured to flex upon actuation and to make contact with at least a portion of the extension and carry current therethrough.
    Type: Application
    Filed: December 22, 2008
    Publication date: June 24, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Xuefeng Wang, Kuna Venkat Satya Rama Kishore, Christopher Fred Keimel, Glenn Scott Claydon, Kanakasabapathi Subramanian
  • Publication number: 20100155203
    Abstract: A micro electromechanical system switch having an electrical pathway is presented. The switch includes a first portion and a second portion. The second portion is offset to a zero overlap position with respect to the first portion when the switch is in open position (or in the closed position depending on the switch architecture). The switch further includes an actuator for moving the first portion and the second portion into contact.
    Type: Application
    Filed: December 22, 2008
    Publication date: June 24, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Xuefeng Wang, Alex David Corwin, Bo Li, Kanakasabapathi Subramanian, Kuna Venkat Satya Rama Kishore