Patents by Inventor Xin Luo

Xin Luo 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: 20120242679
    Abstract: As to enhance the rendering while minimizing needed computation time, the method comprises the steps of determining noise information, said noise information being representative of noise level estimated for at least a part of said image; the noise information being determined for the achromatic component of the image; sampling said part of the image according to said noise information; and rendering said at least a part of the image according to said sampling.
    Type: Application
    Filed: December 4, 2009
    Publication date: September 27, 2012
    Applicant: Thomson Licensing
    Inventors: Jun Teng, Li Xin Luo, Zhi Bo Chen
  • Patent number: 8133727
    Abstract: The present disclosure relates to systems, methods and compositions for the generation of antibody-producing B cells in vitro. Some embodiments are related to an in vitro system for generating antibody-producing B cells from hematopoietic stem/progenitor cells (HSPCs).
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: March 13, 2012
    Assignee: California Institute of Technology
    Inventors: Xin Luo, Lili Yang, David Baltimore
  • Publication number: 20100203630
    Abstract: The present disclosure relates to systems, methods and compositions for the generation of antibody-producing B cells in vitro. Some embodiments are related to an in vitro system for generating antibody-producing B cells from hematopoietic stem/progenitor cells (HSPCs).
    Type: Application
    Filed: November 19, 2009
    Publication date: August 12, 2010
    Applicant: California Institute of Technology
    Inventors: Xin Luo, Lili Yang, David Baltimore
  • Patent number: 7653267
    Abstract: A beam modulator (14) for modulating a beam (20) includes a modulator element (26) and a housing assembly (24). The modulator element (26) is positioned in the path of the beam (20). The housing assembly (24) retains the modulator element (26). Additionally, the housing assembly (24) defines a resonant cavity (328) with the modulator element (26) positioned therein. The housing assembly (24) includes a size adjuster (30) that can be moved to selectively adjust the size of the resonant cavity (328). As a result thereof, in certain embodiments, the resonant frequency of the beam modulator (14) can be easily tuned over a relatively large frequency range.
    Type: Grant
    Filed: May 9, 2007
    Date of Patent: January 26, 2010
    Assignee: Newport Corporation
    Inventor: Xin Luo
  • Patent number: 7463397
    Abstract: A beam modulator (14) for modulating a beam (20) includes a modulator element (26) and a housing assembly (24). The modulator element (26) is positioned in the path of the beam (20). The housing assembly (24) retains the modulator element (26). The housing assembly (24) can include a housing (234), a first retainer assembly (342), and a second retainer assembly (344). The first retainer assembly (342) flexibly secures the modulator element (26) to the housing (24) and the second retainer assembly (344) fixedly secures the modulator element (26) to the housing (234) with the modulator element (26) positioned between the retainer assemblies (342) (344). With this design, the retainer assemblies (342) (344) can cooperate to retain the modulator element (26) in a fashion that applies a substantially uniform and small pressure across the modulator element (26).
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: December 9, 2008
    Assignee: Bookham Technology plc
    Inventors: David F. Arnone, Xin Luo
  • Publication number: 20070263271
    Abstract: A beam modulator (14) for modulating a beam (20) includes a modulator element (26) and a housing assembly (24). The modulator element (26) is positioned in the path of the beam (20). The housing assembly (24) retains the modulator element (26). Additionally, the housing assembly (24) defines a resonant cavity (328) with the modulator element (26) positioned therein. The housing assembly (24) includes a size adjuster (30) that can be moved to selectively adjust the size of the resonant cavity (328). As a result thereof, in certain embodiments, the resonant frequency of the beam modulator (14) can be easily tuned over a relatively large frequency range.
    Type: Application
    Filed: May 9, 2007
    Publication date: November 15, 2007
    Applicant: Bookham Technology plc
    Inventor: Xin Luo
  • Publication number: 20070139755
    Abstract: A beam modulator (14) for modulating a beam (20) includes a modulator element (26) and a housing assembly (24). The modulator element (26) is positioned in the path of the beam (20). The housing assembly (24) retains the modulator element (26). The housing assembly (24) can include a housing (234), a first retainer assembly (342), and a second retainer assembly (344). The first retainer assembly (342) flexibly secures the modulator element (26) to the housing (24) and the second retainer assembly (344) fixedly secures the modulator element (26) to the housing (234) with the modulator element (26) positioned between the retainer assemblies (342) (344). With this design, the retainer assemblies (342) (344) can cooperate to retain the modulator element (26) in a fashion that applies a substantially uniform and small pressure across the modulator element (26).
    Type: Application
    Filed: December 7, 2006
    Publication date: June 21, 2007
    Applicant: Bookham Technology plc
    Inventors: David Arnone, Xin Luo
  • Patent number: 7173762
    Abstract: An isolator is disclosed that features a single birefringent correction element. The correction element is configured to eliminate differential group delay and walk-off simultaneously.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: February 6, 2007
    Assignee: Finisar Corporation
    Inventors: Yonglin Haung, Ping Xie, Xin Luo, Liren Du
  • Patent number: 7173763
    Abstract: An optical interleaver for use in a range of telecommunications applications including optical multiplexers/demultiplexers and optical routers. The optical device includes an optical processing loop which allows multi-stage performance characteristics to be achieved with a single physical filtration stage. Optical processing on the first leg and second legs of the loop is asymmetrical thereby improving the integrity of the optical signals by effecting complementary chromatic dispersion on the first and second legs. A fundamental filter cell within the interleaver filters optical signals propagating on each of the two legs of the optical loop which intersects the fundamental filter cell.
    Type: Grant
    Filed: June 11, 2004
    Date of Patent: February 6, 2007
    Assignee: Finisar Corporation
    Inventors: Tengda Du, Kevin Dapeng Zhang, Xin Luo
  • Publication number: 20060281039
    Abstract: A lighter includes a pivot nozzle including a nozzle housing pivotally mounted at a lighter casing, a gas nozzle substantially supported in the nozzle housing in a stationary manner, and a retention skeleton having a predetermine flexibility is extended from a gas valve to the gas nozzle for guiding the gas emitting from a liquefied gas storage to the gas nozzle, wherein the nozzle housing is pivotally folded with respect to the lighter casing to selectively adjust a tilt angle of the gas nozzle while the retention skeleton retains the gas flowing towards the gas nozzle such that when the ignition button is depressed to depress the piezoelectric unit and to release the gas at the gas valve at the same time, the gas is emitted at the gas nozzle through the retention skeleton and is ignited by the sparks at the ignition tip of the piezoelectric unit.
    Type: Application
    Filed: June 9, 2005
    Publication date: December 14, 2006
    Inventor: Xin Luo
  • Patent number: 7106508
    Abstract: The present invention is a hybrid cell that utilizes a PBS pair in conjunction with a wedge tuner and a crystal to achieve a more stable interleaver. A first PBS splits an incoming optical signal into two orthogonally polarized beams which follow different optical paths through the cell. The length of the wedge tuner and crystal are selected such that the periodicity of the cell is approximately inversely proportional to the free spectral range at a target frequency. The length of the wedge tuner and crystal are also selected such that there is no change in an optical path difference between the two optical paths with respect to a change in temperature over an operating temperature range.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: September 12, 2006
    Assignee: Finisar Corporation
    Inventors: Tengda Du, Xin Luo, Ping Xie, Evan Green
  • Patent number: 7061905
    Abstract: For use in conjunction with a system for producing, at a transmitter location, time division multiplexed (TDM) frames having a plurality of channels of information signals and framing signals, communicating the frames from the transmitter location to a receiver location, and, at the receiver location, deframing the received frames to obtain frame timing signals and a bitstream of information signals which are coupled with a plurality of operating units. A technique for responding very quickly, upon loss of the TDM signal, to prevent misoperation of the operating units, including: at the transmitter, inserting a preselected pattern of bits in a timeslot of the information signals; at the receiver, detecting, in the deframed bit stream, the absence of the preselected pattern of bits, and producing a control signal in response; and producing override information signals that are coupled to the operating units when the control signal is present.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: June 13, 2006
    Assignee: RFL Electronics Inc.
    Inventors: William G. Higinbotham, Paul Palamara, Robert Walker, Xin Luo
  • Publication number: 20050111772
    Abstract: The present invention is a hybrid cell that utilizes a PBS pair in conjunction with a wedge tuner and a crystal to achieve a more stable interleaver. A first PBS splits an incoming optical signal into two orthogonally polarized beams which follow different optical paths through the cell. The length of the wedge tuner and crystal are selected such that the periodicity of the cell is approximately inversely proportional to the free spectral range at a target frequency. The length of the wedge tuner and crystal are also selected such that there is no change in an optical path difference between the two optical paths with respect to a change in temperature over an operating temperature range.
    Type: Application
    Filed: September 3, 2003
    Publication date: May 26, 2005
    Inventors: Tengda Du, Xin Luo, Ping Xie, Evan Green
  • Publication number: 20050053334
    Abstract: An optical thick film formed on a photodetector improves the optical coupling efficiency between the optical fiber and photodetector which are optically coupled. The optical thick film has a refractive index that is between the refractive index of air and the refractive index of photodetector upon which the optical matching coating is disposed. Silicone may advantageously be formed as the optical thick film coating on the photodetector.
    Type: Application
    Filed: September 9, 2003
    Publication date: March 10, 2005
    Inventors: Rongsheng Miao, Leo Kha, Xin Luo, Xiaoming Lou
  • Publication number: 20050037141
    Abstract: Methods and structures for reducing and/or eliminating moisture penetration in an optical package. The optical package may include (1) a layer of inorganic material placed over the points of the optical package susceptible moisture penetration of the optical package; (2) a portion of hygroscopic material placed over the points of the optical package susceptible to moisture penetration; (3) a layer of hygroscopic material placed on the interior surface of the optical package; and/or (4) a layer of hydrophobic material coated on the optical surfaces of the optical package.
    Type: Application
    Filed: August 11, 2004
    Publication date: February 17, 2005
    Inventors: Ming Shi, William Freeman, Johnny Zhong, Liren Du, Xin Luo, Steve Wang
  • Publication number: 20050019037
    Abstract: A high performance transmission optical subassembly is disclosed. The transmission optical subassembly includes a laser diode transmitting an optical transmission beam from a first facet of the laser diode. A reflective mirror reflects a first portion of the optical transmission beam to an end face of an optical fiber and an edge illumination monitor photodetector, having a light receiving facet that receives a second portion of the optical transmission beam, produces a laser diode control signal as a function of the received second portion of the optical transmission beam.
    Type: Application
    Filed: July 25, 2003
    Publication date: January 27, 2005
    Inventors: Xin Luo, Matthew Swass, Eva Peral, Bryon Kasper
  • Publication number: 20040246582
    Abstract: An optical interleaver for use in a range of telecommunications applications including optical multiplexers/demultiplexers and optical routers. The optical device includes an optical processing loop which allows multi-stage performance characteristics to be achieved with a single physical filtration stage. Optical processing on the first leg and second legs of the loop is asymmetrical thereby improving the integrity of the optical signals by effecting complementary chromatic dispersion on the first and second legs. A fundamental filter cell within the interleaver filters optical signals propagating on each of the two legs of the optical loop which intersects the fundamental filter cell.
    Type: Application
    Filed: June 11, 2004
    Publication date: December 9, 2004
    Inventors: Tengda Du, Kevin Dapeng Zhang, Xin Luo
  • Publication number: 20040223222
    Abstract: An optical interleaver for use in a range of telecommunications applications including optical multiplexers/demultiplexers and optical routers. The optical device includes an optical processing loop which allows multi-stage performance characteristics to be achieved with a single physical filtration stage. Optical processing on the first leg and second legs of the loop is asymmetrical thereby improving the integrity of the optical signals by effecting complementary chromatic dispersion on the first and second legs. A fundamental filter cell within the interleaver filters optical signals propagating on each of the two legs of the optical loop which intersects the fundamental filter cell.
    Type: Application
    Filed: June 11, 2004
    Publication date: November 11, 2004
    Inventors: Daniel Philip Schott, Tengda Du, Xin Luo, Kevin Dapeng Zhang
  • Publication number: 20030081634
    Abstract: The disclosed technique has application for use in conjunction with a system for producing, at a transmitter location, time division multiplexed (TDM) frames comprising a plurality of channels of information signals and framing signals, communicating the frames from the transmitter location to a receiver location, and, at the receiver location, deframing the received frames to obtain frame timing signals and a bitstream of information signals which are coupled with a plurality of operating units, for example teleprotection units.
    Type: Application
    Filed: October 26, 2001
    Publication date: May 1, 2003
    Inventors: William G. Higinbotham, Paul Palamara, Robert Walker, Xin Luo
  • Publication number: 20020060843
    Abstract: An isolator is disclosed that features a single birefringent correction element. The correction element is configured to eliminate differential group delay and walk-off simultaneously.
    Type: Application
    Filed: July 5, 2001
    Publication date: May 23, 2002
    Applicant: New Focus, Inc.
    Inventors: Yonglin Huang, Ping Xie, Xin Luo, Liren Du