Patents by Inventor HongBin Yu

HongBin Yu 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: 20160249118
    Abstract: A grooming method and apparatus for a packet optical transport network are disclosed. The method includes: according to an arrangement order of various services, planning a path from a service source node to a service target node in an ith service in a topology set graph; when the path includes a wavelength link in a physical link, removing the wavelength link, and establishing a virtual link between a link source node and a link target node of the removed wavelength link; updating capacities of various links in the path; calculating a weight of a newly established virtual link, and adding the newly established virtual link and the corresponding weight to the topology set graph; and planning a path from a service source node to a service target node in an i+1th service in the topology set graph, until all services are finished.
    Type: Application
    Filed: April 16, 2014
    Publication date: August 25, 2016
    Inventors: Xuegang Ou, Xin Si, Jie Chen, Hongbin Yu, Wei Luo, Xingming Li
  • Publication number: 20160178876
    Abstract: The present application provides a micromechanical (MEMS) based zoom lens system, for use in miniature device applications, such as miniature electronic imaging devices. The MEMS-based zoom lens system comprises at least four optical elements, or two Alvarez or Lohmann lenses, that are configured for passage of optical signals therethrough along an optical signal path. Each optical element is MEMS-driven and displaceable in a direction substantially transverse to the optical signal path. In use, the transverse displacement of the optical elements vary an overall focal length of the MEMS zoom lens system such as to provide an optical zoom function. A method of manufacturing a MEMS zoom lens system is also provided in a further aspect.
    Type: Application
    Filed: February 29, 2016
    Publication date: June 23, 2016
    Inventors: Guangya ZHOU, Hongbin YU, Fook Siong CHAU
  • Patent number: 9274320
    Abstract: The present application provides a micromechanical (MEMS) based zoom lens system, for use in miniature device applications, such as miniature electronic imaging devices. The MEMS-based zoom lens system comprises at least four optical elements, or two Alvarez or Lohmann lenses, that are configured for passage of optical signals therethrough along an optical signal path. Each optical element is MEMS-driven and displaceable in a direction substantially transverse to the optical signal path. In use, the transverse displacement of the optical elements vary an overall focal length of the MEMS zoom lens system such as to provide an optical zoom function. A method of manufacturing a MEMS zoom lens system is also provided in a further aspect.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: March 1, 2016
    Assignee: National University of Singapore
    Inventors: Guangya Zhou, Hongbin Yu, Fook Siong Chau
  • Patent number: 9091839
    Abstract: The present application provides a micromechanical (MEMS) based zoom lens system, for use in miniature device applications, such as miniature electronic imaging devices. The MEMS-based zoom lens system comprises at least four optical elements, or two Alvarez or Lohmann lenses, that are configured for passage of optical signals therethrough along an optical signal path. Each optical element is MEMS-driven and displaceable in a direction substantially transverse to the optical signal path. In use, the transverse displacement of the optical elements vary an overall focal length of the MEMS zoom lens system such as to provide an optical zoom function. A method of manufacturing a MEMS zoom lens system is also provided in a further aspect.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: July 28, 2015
    Assignee: National University of Singapore
    Inventors: Guangya Zhou, Hongbin Yu, Fook Siong Chau
  • Publication number: 20150145374
    Abstract: A transducer is provided, which includes a substrate, wherein a cavity is defined at least partially through the substrate, at least one stopper structure arranged within the cavity, a support layer arranged over the at least one stopper structure and the cavity to seal the cavity, and a piezoelectric functional arrangement arranged on the support layer. According to further embodiments of the present invention, a method for forming a transducer is also provided.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 28, 2015
    Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Jinghui XU, Hongbin YU, Liang LOU, Alex Yuandong GU
  • Publication number: 20150037024
    Abstract: A MEMS iris diaphragm (400) for an optical system is disclosed. The MEMS iris diaphragm (400) comprises at least two layers of diaphragm structures with each layer having suspended blade members (404a, 404b, 404c, 404d, 406a, 406b, 406c, 406d) angularly spaced from each other, the at least two layers of blade members (404a, 404b, 404c, 404d, 406a, 406b, 406c, 406d) arranged to overlap and cooperate with each other to define an aperture (408) to allow light to pass through, and a rotary actuating device (401) arranged to rotate at least some of the blade members (404a, 404b, 404c, 404d, 406a, 406b, 406c, 406d) of the at least two layers about their respective axis in a non-contact manner to vary the aperture's size. A method of adjusting a size of an aperture of a MEMS iris diaphragm (400) for an optical system is also disclosed.
    Type: Application
    Filed: March 6, 2013
    Publication date: February 5, 2015
    Inventors: Guangya Zhou, Hongbin Yu, Fook Siong Chau
  • Publication number: 20140354856
    Abstract: The present application provides a micromechanical (MEMS) based zoom lens system, for use in miniature device applications, such as miniature electronic imaging devices. The MEMS-based zoom lens system comprises at least four optical elements, or two Alvarez or Lohmann lenses, that are configured for passage of optical signals therethrough along an optical signal path. Each optical element is MEMS-driven and displaceable in a direction substantially transverse to the optical signal path. In use, the transverse displacement of the optical elements vary an overall focal length of the MEMS zoom lens system such as to provide an optical zoom function. A method of manufacturing a MEMS zoom lens system is also provided in a further aspect.
    Type: Application
    Filed: October 5, 2012
    Publication date: December 4, 2014
    Inventors: Guangya Zhou, Hongbin Yu, Fook Siong Chau
  • Publication number: 20140285905
    Abstract: The present application provides a micromechanical (MEMS) based zoom lens system, for use in miniature device applications, such as miniature electronic imaging devices. The MEMS-based zoom lens system comprises at least four optical elements, or two Alvarez or Lohmann lenses, that are configured for passage of optical signals therethrough along an optical signal path. Each optical element is MEMS-driven and displaceable in a direction substantially transverse to the optical signal path. In use, the transverse displacement of the optical elements vary an overall focal length of the MEMS zoom lens system such as to provide an optical zoom function. A method of manufacturing a MEMS zoom lens system is also provided in a further aspect.
    Type: Application
    Filed: June 2, 2014
    Publication date: September 25, 2014
    Inventors: Guangya ZHOU, Hongbin Yu, Fook Siong Chau
  • Patent number: 8792169
    Abstract: Described herein are diffraction gratings and methods for the manufacture thereof. One method comprises applying a force to a substrate to strain the substrate, disposing a thin film on at least a portion of the substrate, and reducing the force applied to the substrate, thereby causing the thin film to buckle.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: July 29, 2014
    Assignee: Arizona Board of Regents on behalf of Arizona State University
    Inventors: Hanqing Jiang, Hongbin Yu, Cunjiang Yu, Kevin O'Brien, Yong-Hang Zhang
  • Publication number: 20140199518
    Abstract: Disclosed herein are articles and methods useful for the lithographic applications. The articles comprise a wrinkling structure and a photosensitive material. The articles and methods provide low cost alternatives to conventional lithographic applications. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: November 15, 2013
    Publication date: July 17, 2014
    Inventors: Hongbin Yu, Hanqing Jiang, Kevin Chen, Ebraheem Ali Azhar, Teng Ma
  • Publication number: 20140152410
    Abstract: An integrated inductor can be tunable via a control current which alters the magnetic flux density in a permeable magnetic material. The resulting inductor can be adjusted in-circuit, and may be suitable for applications such as dc-dc converters, RF circuits, or filters requiring operation at high frequencies and across wide bandwidths.
    Type: Application
    Filed: December 2, 2013
    Publication date: June 5, 2014
    Applicant: Arizona Board of Regents, a body corporate of the State of Arizona acting for and on behalf of Arizo
    Inventors: Hongbin Yu, Hao Wu
  • Patent number: 8532013
    Abstract: The invention proposes method and apparatus in a plurality of rendezvous points for together processing multicast traffics from mobile multicast source. Wherein, a first rendezvous point and at least one second rendezvous point compose an anycast group which is used for sharing the processing task of the multicast data packets of the mobile multicast source point together, the first rendezvous point and the at least one second rendezvous point share a route forwarding table, the route forwarding table comprises corresponding relation among the care-of-address, the home address and the multicast address of one or more multicast sources.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: September 10, 2013
    Assignee: Alcatel Lucent
    Inventors: Chunyan Yao, Hongbin Yu, Jianbin Chen, Shuigen Yang, Jun Zheng, Fanxiang Bin
  • Publication number: 20130071629
    Abstract: According to an embodiment of the present invention, a method of applying a lubricant to a micromechanical device is provided. The method includes: positioning a dispensing portion of a lubricant liquid dispenser over a surface portion of a micromechanical device; and controlling the dispenser such that a single lubricant liquid droplet of a predefined volume is forced out of the dispensing portion and impinges onto the surface portion.
    Type: Application
    Filed: March 17, 2011
    Publication date: March 21, 2013
    Applicant: National University of Singapore
    Inventors: Sujeet Kumar Sinha, Jonathan Yonghui Leong, Satyanarayana Nalam, Hongbin Yu, Harikumar Vijayan, Guangya Zhou
  • Publication number: 20120212820
    Abstract: Described herein are diffraction gratings and methods for the manufacture thereof. One method comprises applying a force to a substrate to strain the substrate, disposing a thin film on at least a portion of the substrate, and reducing the force applied to the substrate, thereby causing the thin film to buckle.
    Type: Application
    Filed: January 24, 2012
    Publication date: August 23, 2012
    Inventors: Hanqing Jiang, Hongbin Yu, Cunjiang Yu, Kevin O'Brien, Yong-Hang Zhang
  • Publication number: 20120076067
    Abstract: The invention proposes method and apparatus in a plurality of rendezvous points for together processing multicast traffics from mobile multicast source. Wherein, a first rendezvous point and at least one second rendezvous point compose an anycast group which is used for sharing the processing task of the multicast data packets of the mobile multicast source point together, the first rendezvous point and the at least one second rendezvous point share a route forwarding table, the route forwarding table comprises corresponding relation among the care-of-address, the home address and the multicast address of one or more multicast sources.
    Type: Application
    Filed: June 3, 2009
    Publication date: March 29, 2012
    Applicant: ALCATEL LUCENT
    Inventors: Chunyan Yao, Hongbin Yu, Jianbin Chen, Shuigen Yang, Jun Zheng, Fanxiang Bin
  • Publication number: 20110145406
    Abstract: In this invention, a proxy device is introduced between control device and implementing device in a communication network, to achieve the management related to work status monitoring between control device and implementing device, so that the load of control device handling message(s) related to status monitoring. Specifically, the proxy device firstly obtains the work status information of multiple implementing devices, and reports them to the control device via one or more uplink report messages; after receiving the uplink report message(s) from the proxy device, the control device obtains the work status information of multiple implementing devices based on the above uplink report message(s). The solutions in this invention are especially applicable to device status monitoring based on heartbeat mechanism in soft switch network.
    Type: Application
    Filed: August 15, 2008
    Publication date: June 16, 2011
    Applicant: ALCATEL LUCENT
    Inventors: Chao Ze, Hongbin Yu, Jianhua Zhu, Jiang Qi
  • Publication number: 20090245781
    Abstract: The objective of the present invention is to provide a solution for detecting timeslot conflict between Optical Network Units (ONUs) in an Optical Line Terminal (OLT). When all ONUs are deactivated and there is still any light signal in the upstream, each ONU is notified to switch off the power supply of its transmitter one by one to detect whether there is any failure ONU; when all ONUs are deactivated and there is no light signal in the upstream, the failed ONU can be located through ranging the ONUs separately. The solution can be implemented through software update, without affecting the intrinsic hardware design.
    Type: Application
    Filed: August 23, 2007
    Publication date: October 1, 2009
    Inventors: Jiang Qi, Hongbin Yu, Mohamad Nizam, Qiang Li
  • Patent number: 7590749
    Abstract: The present invention discloses a method and apparatus for multicast management of user interface in a network access device, which comprises setting a user multicast information table for the user interface in the network access device, IGMP protocol processing unit obtaining the user identification information from a user IGMP message, retrieving and updating the user multicast information table based on types of multicast messages; checking the user multicast information table of the user interface when multicast resources of the user interface are not sufficient, immediately terminating the multicast GSQ process and directly performing quick-leaving when the user multicast information table of a multicast group is empty, in conjunction with use of items of multicast state. The present invention can greatly enhance speed and performance of switching for multicast channels of the network access device.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: September 15, 2009
    Assignee: Alcatel
    Inventors: LinLi Lu, HongBin Yu, YingZhong Miao, JianHua Zhu
  • Publication number: 20080270485
    Abstract: A method for processing data synchronization includes a client terminal performing corresponding updating process for the updating data item transmitted from a server; storing the global unique identity (GUID) corresponding to the updating data item sent from the server; if this synchronization process is interrupted, after next synchronization process is re-initiated, the client terminal reporting the stored GUID to server memory; according to the stored result, the server transmitting GUID and the corresponding updating data items which are not included in the stored result in itself updating database to the client terminal, then returning to procedure. Correspondingly, the present disclosure also provides a client terminal, server and data synchronization system. The present disclosure enables to complete data synchronization normally even if the case that the data synchronization process is interrupted.
    Type: Application
    Filed: May 16, 2008
    Publication date: October 30, 2008
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Hongbin Yu, Chunrong Chen, Yingjun Zhou, Wei Gao
  • Publication number: 20070011350
    Abstract: The present invention discloses a method and apparatus for multicast management of user interface in a network access device, which comprises setting a user multicast information table for the user interface in the network access device, IGMP protocol processing unit obtaining the user identification information from a user IGMP message, retrieving and updating the user multicast information table based on types of multicast messages; checking the user multicast information table of the user interface when multicast resources of the user interface are not sufficient, immediately terminating the multicast GSQ process and directly performing quick-leaving when the user multicast information table of a multicast group is empty, in conjunction with use of items of multicast state. The present invention can greatly enhance speed and performance of switching for multicast channels of the network access device.
    Type: Application
    Filed: June 14, 2006
    Publication date: January 11, 2007
    Inventors: LinLi Lu, HongBin Yu, YingZhong Miao, JianHua Zhu