Patents by Inventor Chang Xiao

Chang Xiao 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).

  • Patent number: 10755375
    Abstract: Disclosed are methods, systems, devices, apparatus, media, and other implementations, including a method that includes obtaining input visual data comprising a sequence of symbols, selected from a symbol set, with each of the symbols associated with a glyph representation. The method also includes obtaining a code message comprising code message symbols, and modifying at least one of the symbols of the input visual data to a different glyph representation associated with a respective at least one of the code message symbols to generate, at a first time instance, a resultant coded visual data.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: August 25, 2020
    Inventors: Changxi Zheng, Chang Xiao, Cheng Zhang
  • Patent number: 10746933
    Abstract: A pump laser package may include an input fiber to send signal light on a first optical path inside a package, a source to send pump light on a second optical path inside the package, and an output fiber on a third optical path inside the package. The pump laser package may include a WDM filter inside the package to receive the signal light on the first optical path and send the signal light on the third optical path, and receive the pump light on the second optical path and send the pump light on the third optical path. The pump laser package may include an isolator inside the package to transmit the signal light in a first direction, and block the signal light in a second direction, or a photo-diode to receive a portion of the signal light sent on a fourth optical path.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: August 18, 2020
    Assignee: Lumentum Operations LLC
    Inventors: Yonghong Guo, Nicolas Guerin, Chang Xiao, Xia Hong
  • Patent number: 10702370
    Abstract: A lumen stent includes a first tube body and a second tube body. The second body is sleeved outside the first body and has at least one end in hermetic connection with the outer surface of the first body. The second body includes a thin film body that covers at least part of the first body and a second radial supporting structure that is disposed in a maximum radius-length region of the thin film body and surrounds the maximum radius-length region. The second radial supporting structure has radius supporting property. After the implantation of the lumen stent, a semi-enclosed gap can be formed between the first body and the second body, or a semi-enclosed gap can be formed between the second body and a tube wall, so that blood flowing into the gap can serve as a filling material and prevent blood from flowing into a tumor body.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: July 7, 2020
    Assignee: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD
    Inventors: Chang Shu, Benhao Xiao, Deyuan Zhang
  • Publication number: 20200201167
    Abstract: Extreme ultraviolet (EUV) mask blanks, methods for their manufacture and production systems therefor are disclosed. The EUV mask blanks comprise a substrate; a multilayer stack of reflective layers on the substrate; a capping layer on the multilayer stack of reflecting layers; and an absorber layer on the capping layer, the absorber layer made from amorphous tantalum nitride formed by non-reactive sputtering.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 25, 2020
    Applicant: Applied Materials, Inc.
    Inventors: Shuwei Liu, Chang Ke, Wen Xiao, Vibhu Jindal
  • Patent number: 10624768
    Abstract: A luminal stent includes a first tubular body and a second tubular body sleeved on the first tubular body, and at least one end of the second tubular body is sealingly connected to an outer surface of the first tubular body. In a radial support section of the luminal stent, the first tubular body includes at least one first radial support structure arranged in a circumferential direction thereof, and the second tubular body includes at least one second radial support structure arranged in a circumferential direction thereof and a coating film covering the second radial support structure. The second radial support structure has greater radial deformability than the first radial support structure. After implantation, the luminal stent can form a semi-closed gap between the first tubular body and the second tubular body or between the second tubular body and a lumen wall.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: April 21, 2020
    Assignee: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD
    Inventors: Benhao Xiao, Deyuan Zhang, Chang Shu, Yifei Wang
  • Publication number: 20190250336
    Abstract: A pump laser package may include an input fiber to send signal light on a first optical path inside a package, a source to send pump light on a second optical path inside the package, and an output fiber on a third optical path inside the package. The pump laser package may include a WDM filter inside the package to receive the signal light on the first optical path and send the signal light on the third optical path, and receive the pump light on the second optical path and send the pump light on the third optical path. The pump laser package may include an isolator inside the package to transmit the signal light in a first direction, and block the signal light in a second direction, or a photo-diode to receive a portion of the signal light sent on a fourth optical path.
    Type: Application
    Filed: June 1, 2017
    Publication date: August 15, 2019
    Inventors: Yonghong GUO, Nicolas GUERIN, Chang XIAO, Xia HONG
  • Publication number: 20190175327
    Abstract: A luminal stent has a tube body and a skirt surrounding the tube body. The skirt has a flexible connecting section and a stent graft connected to a proximal end of the flexible connecting section. A distal end of the flexible connecting section is sealed and connected to the outer surface of the tube body. A proximal end of the stent graft is suspended and provided with a first radial support structure. When the flexible connecting section is radially compressed, at least a part of the first radial support structure is bent towards a direction distant from the tube body. Also provided is a stent system including the luminal stent. The stent system and the luminal stent can prevent type III endoleaks.
    Type: Application
    Filed: June 28, 2017
    Publication date: June 13, 2019
    Applicant: Lifetech Scientific (Shenzhen) Co., Ltd.
    Inventors: Benhao Xiao, Deyuan Zhang, Chang Shu, Chao Yin, Yifei Wang
  • Publication number: 20180247386
    Abstract: Disclosed are methods, systems, devices, apparatus, media, and other implementations, including a method that includes obtaining input visual data comprising a sequence of symbols, selected from a symbol set, with each of the symbols associated with a glyph representation. The method also includes obtaining a code message comprising code message symbols, and modifying at least one of the symbols of the input visual data to a different glyph representation associated with a respective at least one of the code message symbols to generate, at a first time instance, a resultant coded visual data.
    Type: Application
    Filed: February 23, 2018
    Publication date: August 30, 2018
    Inventors: Changxi ZHENG, Chang XIAO, Cheng ZHANG
  • Patent number: 8664584
    Abstract: A compact PD unidirectivity solution for an optical tap monitor, which reduces the overall size of optical tap module, is provided. The solution is to use lensing to separate the light from the input and output fibers, and then add a mask or spacer in front of the monitor PD to prevent any of the light from the output fiber from entering the photodetector package.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: March 4, 2014
    Assignee: JDS Uniphase Corporation
    Inventors: Yatao Yang, Chang Xiao, Yujian Bao, Fenhong Zhou
  • Publication number: 20110089314
    Abstract: A compact PD unidirectivity solution for an optical tap monitor, which reduces the overall size of optical tap module, is provided. The solution is to use lensing to separate the light from the input and output fibres, and then add a mask or spacer in front of the monitor PD to prevent any of the light from the output fiber from entering the photodetector package.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 21, 2011
    Applicants: JDS Uniphase Corporation
    Inventors: Yatao YANG, Chang Xiao, Yujian Bao, Fenhong Zhou
  • Publication number: 20090103867
    Abstract: A compact variable optical attenuator having optical-tap functionality is described comprising a planar waveguide attenuator, a lens, and a photodetector. Input and output waveguides are located close to the optical axis of the lens, which reduces optical aberrations and insertion loss. The waveguide attenuator works by light absorption with virtually no scattered light present, which improves fidelity of measurements of the tapped optical power by the photodetector. The entire tap-attenuator assembly is packaged into a small form pluggable (SFP) package having two optical connectors.
    Type: Application
    Filed: October 6, 2008
    Publication date: April 23, 2009
    Applicant: JDS Uniphase Corporation
    Inventors: Qing Huang, Chang Xiao, Xiaolin Chen, Yatao Yang