Patents by Inventor Lei Zheng

Lei Zheng 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: 9701332
    Abstract: A stroller frame assembly includes: front and rear leg units; an armrest; a seat support bar disposed below and opposing the armrest; and first and second connecting bars. The first connecting bar cooperates with the armrest, the seat support bar and the front leg unit to form a first four-bar linkage mechanism. The first connecting bar cooperates with the armrest, the second connecting bar and the rear leg unit to form a second four-bar linkage mechanism.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: July 11, 2017
    Assignee: WONDERLAND NURSERYGOOD COMPANY LIMITED
    Inventor: Lei-Lei Zheng
  • Patent number: 9667076
    Abstract: An electrical charging system includes a charging socket and a standby battery product. The charging socket has a socket casing, and a power input interface on the socket casing and electrically connected to a first conductive contact that extends above the socket casing. The standby battery product has a battery casing with a battery housed inside the battery casing, the battery casing further including a conductive pin and a second conductive contact, with the conductive pin and second conductive contact electrically connected to the battery. When the battery casing is placed on top of the socket casing, the conductive pin is aligned with, and contacts, the first conductive contact, creating a charging path that is defined by the power input interface (which receives external power), the first conductive contact of the socket casing, the conductive pin of the battery casing, and the electricity storage unit of the battery product.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: May 30, 2017
    Assignee: Sun Pleasure Company Limited
    Inventors: Vincent W. S. Lau, Lei Zheng
  • Publication number: 20170106067
    Abstract: The invention features compositions and methods for treating and preventing pancreatic cancer.
    Type: Application
    Filed: June 12, 2015
    Publication date: April 20, 2017
    Inventors: Elizabeth Jaffee, Lei Zheng
  • Patent number: 9577651
    Abstract: A circuit to generate a sweep frequency signal that includes a reference frequency source to generate a reference frequency signal, a first frequency combination circuit coupled to the reference frequency source, and operative to generate a sweep frequency signal in a first frequency band based on the reference frequency signal, a second frequency combination circuit coupled to the reference frequency source, and operative to generate a sweep frequency signal in a second frequency band different from the first frequency band based on the reference frequency signal, a multiple-level switch coupled to outputs of the first frequency combination circuit and the second frequency combination circuit, and a control circuit controlling the first and second frequency combination circuits and the multiple-level switch to output the sweep frequency signal in the first frequency band and the sweep frequency signal in the second frequency band at an output of the multiple-level switch alternately.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: February 21, 2017
    Assignee: NUCTECH COMPANY LIMITED
    Inventors: Ziran Zhao, Wenguo Liu, Zhiqiang Chen, Yuanjing Li, Wanlong Wu, Yinong Liu, Bin Sang, Lei Zheng
  • Patent number: 9538142
    Abstract: A system and method provide server side support for seamless, scalable rewind and playback of a video stream. A video stream is stored and indexed in a network storage place. A video stream can be indexed at frame level where each intra frame of the video stream has an index indicating the file offset and the time stamp of the intra frame in the video stream. A user request for rewinding of a video stream while the video stream is being broadcast is processed by extracting the rewinding time requirement from the user request. The extracted rewinding time value is used to calculate the requested file offset. The video stream starting at the requested time is retrieved and played back according to the user request. The system also provides server side support for seamless rewinding of a video stream and scalable system performance across multiple streaming data centers.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: January 3, 2017
    Assignee: Google Inc.
    Inventors: Lei Zheng, Christopher Dylan Bentzel, Kyle Kakligian
  • Patent number: 9504171
    Abstract: A power supply has a generally rectangular housing that has a length of about 11 inches and a width of about 8.5 inches, with a thickness of less than 5.2 cm. A rechargeable battery is housed inside the housing, and a power bay is provided on the housing and coupled to the battery inside the housing.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: November 22, 2016
    Assignee: Sun Pleasure Company Limited
    Inventors: Vincent W. S. Lau, Lei Zheng
  • Patent number: 9478864
    Abstract: There is provided a waveguide horn array, a method for forming the waveguide horn array, and an antenna system. The array includes a rectangular metal plate which is processed to have a cross section comprised of a plurality of rectangular holes arranged in the length direction of the rectangular metal plate, the lower part of each hole being formed as a rectangular waveguide, and the upper part of each hole being formed as a horn; and a groove extending in the direction along which the plurality of holes are arranged and having a predetermined depth, which is formed at two sides of the holes on the top surface of the rectangular metal plate. According to the embodiments, it is possible to maintain the good properties of the antenna in terms of bandwidth and directivity, while enhancing the isolation between the transmitting antenna and the receiving antenna in the system.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: October 25, 2016
    Assignees: Tsinghua University, Nuctech Company Limited
    Inventors: Ziran Zhao, Zhiqiang Chen, Yuanjing Li, Wanlong Wu, Jieqing Yang, Wenguo Liu, Xilei Luo, Bin Sang, Lei Zheng
  • Publication number: 20160306811
    Abstract: The present invention provides a method and a system for creating an inverted index file of a video resource. The method comprises: performing word segmentation processing on video file information in a preset word segmentation manner, to obtain a keyword; establishing an index relationship between the keyword and the video file information having the keyword, to create an inverted index file of a video file. According to the present invention, word segmentation processing is performed on video file information to obtain a keyword, and an index relationship between the keyword and the video file information having the keyword is established, to create an inverted index file; and when a user searches for a video file by using the keyword, corresponding information can be rapidly and accurately provided.
    Type: Application
    Filed: December 5, 2014
    Publication date: October 20, 2016
    Inventors: Kunbo Cao, Lei Zheng
  • Publication number: 20160308923
    Abstract: The present invention relates to the field of Internet multimedia. A method and device are provided for playing live broadcast streaming media, being capable of improving the flexibility of playing live broadcast streaming media. The method comprises: acquiring a live broadcast streaming media search request, the search request comprising search information and search time, the search time indicating the time of generating the live broadcast streaming media search request; according to the search information, searching for live broadcast streaming media matching the search information; if the search time is earlier than the start time of playing the live broadcast streaming media, then playing an on-demand multimedia file corresponding to the search information in a media resource library; if the search time has reached or is later than the start time of playing the live broadcast streaming media, then playing the live broadcast streaming media at the start time.
    Type: Application
    Filed: November 25, 2014
    Publication date: October 20, 2016
    Inventors: Kunbo CAO, Lei ZHENG
  • Publication number: 20160294070
    Abstract: There is provided a wideband patch antenna and an antenna array. The antenna includes a dielectric substrate of a rectangle shape, a radiation patch formed on a top surface of the dielectric substrate, a coupling patch formed on the top surface of the dielectric substrate and extending from a side of the dielectric substrate to a position from the radiation patch by a distance, a metal support arranged on the lower surface of the dielectric substrate and extending from the edge of the lower surface of the dielectric substrate downward to the ground, a layer of air having a predetermined thickness being formed between the lower surface of the dielectric substrate and the ground. According to the embodiments, it is possible to improve the directivity of the wideband microstrip antenna while maintaining its small size.
    Type: Application
    Filed: April 7, 2014
    Publication date: October 6, 2016
    Inventors: Ziran ZHAO, Zhiqiang CHEN, Yuanjing LI, Wanlong WU, Yinong LIU, Jieqing YANG, Wenguo LIU, Bin SANG, Lei ZHENG
  • Publication number: 20160250310
    Abstract: AnnexinA2 (ANXA2), a member of the Annexin family of calcium-dependent, phospholipid binding proteins, is one of a panel of identified antigens recognized by the post-vaccination sera of patients who demonstrated prolonged disease-free survival following multiple vaccinations. AnnexinA2 is abundantly expressed in pancreatic adenocarcinomas and cell surface/membrane AnnexinA2 increases with the progression from premalignant lesions to invasive pancreatic adenocarcinomas. The cytoplasmic to cell surface translocation of AnnexinA2 expression is critical for pancreatic cancer cell invasion. In addition, phosphorylation of AnnexinA2 at Tyrosine 23 is important for its localization to the cell surface and for the invasion of pancreatic cancer cells. Finally, loss of AnnexinA2 leads to the loss of the Epithelial-Mesenchymal Transition.
    Type: Application
    Filed: May 9, 2016
    Publication date: September 1, 2016
    Inventors: Elizabeth Marion Jaffee, Lanqing Huang, Lei Zheng
  • Publication number: 20160233391
    Abstract: The present disclosure provides nanocrystal(s) containing silicone capping agent(s). Dispersions containing the nanocrystal(s) and at least one of silicone monomer(s), silicone pre-polymer(s), and silicone polymer(s), and optionally additionally containing a solvent are also described. Cured dispersions, compositions of nanocrystal(s) and LEDs and related structures containing the composition(s) are provided in the present disclosure.
    Type: Application
    Filed: September 23, 2014
    Publication date: August 11, 2016
    Inventors: Wei XU, Xia BAI, Maneesh BAHADUR, Linfeng GOU, Lei ZHENG, James CRINITI, Gregory COOPER, Serpil Gonen WILLIAMS
  • Patent number: 9411291
    Abstract: Disclosed are a multifunction magnetic reading device and a control method thereof as well as a printer. The multifunction magnetic reading device comprises a magnetic head component, a driving mechanism and a controller. The magnetic head component comprises a first magnetic head and an electromagnet. The first magnetic head comprises a first sub-head and a second sub-head. The electromagnet is configured to magnetize the MICR character. The driving mechanism is configured to drive the magnetic head component to reciprocate horizontally along a medium path in the medium path. According to the disclosure, a check and passbook processing device is also capable of reading a check inserted horizontally, and a user does not need to perform complex operations, which makes the multifunction magnetic reading device to be used conveniently.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: August 9, 2016
    Assignee: Shandong New Beiyang Information Technology Co., Ltd.
    Inventors: Chuntao Wang, Zhuanlong Yu, Zhenhu Xie, Lei Zheng
  • Patent number: 9362777
    Abstract: A portable wireless charging system is incorporated inside a carrying device that has a plurality of walls and an interior. The portable wireless charging system has a transmitter positioned at a first fixed location at an inner surface of one of the walls, a mobile power supply positioned adjacent the transmitter and electrically coupled to the transmitter, and a receiver positioned at a second fixed location at an outer surface of the one of walls, with the second fixed location aligned with the first fixed location. A barrier is positioned between the transmitter and the receiver, and a first pocket positioned at the outer surface about the second fixed location. A portable device that includes a battery to be charged can be retained inside the first pocket to be charged.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: June 7, 2016
    Assignee: Sun Pleasure Company Limited
    Inventors: Vincent W. S. Lau, Lei Zheng
  • Publication number: 20160136558
    Abstract: A sterilizing grade filter including at least two non-sterile nanofiber membranes positioned in a stacked configuration is provided. The nanofiber membranes have a bubble point from about 10 psi to about 50 psi, a thickness less than about 300 microns, and a mass/area less than about 20 g/m2. The non-sterile nanofiber membranes are separated from each other by a distance d, which may be less than about 100 microns. The membranes may be adhered together produce a composite stacked filtration material. Methods of producing a sterilizing grade filter are also provided.
    Type: Application
    Filed: January 20, 2016
    Publication date: May 19, 2016
    Inventors: Lei Zheng, Michael J. Wikol, Jason J. Strid, Lauren Myrick
  • Patent number: 9329830
    Abstract: The present disclosure relates to a music playback method, a third-party application and a device which are in the field of computer technique. The music playback method includes integrating a background music playback module into a third-party application, receiving a music playing signal in which a playlist identification is included, transmitting the music playing signal to the background music playback module through a predetermined port, acquiring by the background music playback module a corresponding playlist based on the playlist identification of the music playing signal, and randomly playing the music in the playlist by the background music playback module.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: May 3, 2016
    Assignee: Tencent Technology (Shenzhen) Company Limited
    Inventors: Rong Liu, Shilei Liu, Rong Zhang, Zhiping Feng, Meng Zhang, Yanbo Ma, Kun Zhang, Kuiguo Wang, Xiaopeng Huang, Lei Zheng, Renkui Shen, Songlin He, Chenguang Liu, Wei Liu
  • Publication number: 20160016124
    Abstract: A mycoplasma retentive filter having an LRV greater than 8 including at least two mycoplasma non-retentive fluoropolymer membranes positioned in a stacked configuration is provided. The fluoropolymer membranes a bubble point from about 30 psi to about 90 psi, a thickness less than about 10 microns, and a mass/area less than about 10 g/m2. The mycoplasma non-retentive fluoropolymer membranes are is separated from each other by a distance d, which may be less than about 100 microns. The fluoropolymer membranes may be laminated or co-expanded to produce a composite stacked filtration material. In exemplary embodiments, at least one of the fluoropolymer membranes is an expanded polytetrafluoroethylene membrane. In one embodiment, the surface morphology of the fluoropolymer membranes are substantially the same and contain no or substantially no free fibrils. Methods of producing a sterilizing grade filter are also provided.
    Type: Application
    Filed: June 29, 2015
    Publication date: January 21, 2016
    Inventors: Lei Zheng, Michael J. Wikol, Jason J. Strid
  • Publication number: 20150370210
    Abstract: Disclosed are a multifunction magnetic reading device and a control method thereof as well as a printer. The multifunction magnetic reading device comprises a magnetic head component (30), a driving mechanism and a controller. The magnetic head component (30) comprises a first magnetic head (301) and an electromagnet (302). The first magnetic head (301) comprises a first sub-head (3011) and a second sub-head (3012). The first sub-head (3011) is configured to read magnetic coded data recorded in a medium magnetic stripe. The second sub-head (3012) is configured to read a Magnetic Ink Character Recognition (MICR) character on a medium. The electromagnet (302) is configured to magnetize the MICR character. The driving mechanism is configured to drive the magnetic head component (30) to reciprocate horizontally along a medium path in the medium path.
    Type: Application
    Filed: June 25, 2012
    Publication date: December 24, 2015
    Applicant: SHANDONG NEW BEIYANG INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Chuntao WANG, Zhuanlong YU, Zhenhu Xie, Lei Zheng
  • Publication number: 20150353115
    Abstract: A stroller frame assembly includes: front and rear leg units; an armrest; a seat support bar disposed below and opposing the armrest; and first and second connecting bars. The first connecting bar cooperates with the armrest, the seat support bar and the front leg unit to form a first four-bar linkage mechanism. The first connecting bar cooperates with the armrest, the second connecting bar and the rear leg unit to form a second four-bar linkage mechanism.
    Type: Application
    Filed: June 3, 2015
    Publication date: December 10, 2015
    Inventor: Lei-Lei ZHENG
  • Patent number: D764404
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: August 23, 2016
    Assignee: Sun Pleasure Co. Limited
    Inventors: Vincent W. S. Lau, Lei Zheng