Patents by Inventor Zheng Yuan

Zheng Yuan 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: 8078676
    Abstract: An educational and training system allows organization and management of computers and course material used in teaching and administering classes of computer based information. Remote users access computers in laboratories or virtual classrooms as if they were actually using the computers within the laboratory or classroom. The system also allows management and tracking of the remote users and of other various course details.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: December 13, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Sanjay Dalal, Chun-Kwok Lee, Edward Wong, Zheng Yuan, Srinath Anantharaman
  • Publication number: 20110275200
    Abstract: A method for an intrinsic type microcrystalline silicon layer is provided. In one embodiment, a method for forming an intrinsic type microcrystalline silicon layer includes dynamically ramping up a silane gas supplied in a gas mixture to a surface of a substrate disposed in a processing chamber, dynamically ramping down a RF power applied in the gas mixture supplied to the processing chamber to form a plasma in the gas mixture, and forming an intrinsic type microcrystalline silicon layer on the substrate.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 10, 2011
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Yi Zheng, Guangchi Xuan, Zheng Yuan, Brian Shieh
  • Patent number: 8037191
    Abstract: In one embodiment, a remote access session may be established between a first computer and a second computer. In response to detecting a device in low-level local communication with the first computer via a first local communication port of the first computer, the low-level local communication at the first local communication port may be intercepted and transmitted to the second computer via the remote access session. Then, the low-level local communication may be injected to a second local communication port of the second computer, wherein the second computer responds to the low-level local communication as though the device were located at the second local communication port of the second computer. For example, the device may be configured to autoconnect with the second computer via the remote access session when the device is connected to the first computer.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: October 11, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Jian Lin, Zheng Yuan
  • Publication number: 20110202599
    Abstract: In one embodiment, a collaboration session is maintained among a plurality of participant devices, at least one participant device operating as a presenter device that shares content during the collaboration session. Content shared during the collaboration session is recorded. A request is detected during the collaboration session from a particular participant device of the plurality of participant devices to view at least a portion of the recorded content. In response to the request during the collaboration from the particular participant device to view the at least a portion of the recorded content, the at least a portion of the recorded content is played back while the collaboration session is still ongoing, wherein the particular participant device remains an active participant in the ongoing collaboration session during playback of the at least a portion of the recorded content. Eventually, playback of the at least a portion of the recorded content is ceased.
    Type: Application
    Filed: April 26, 2011
    Publication date: August 18, 2011
    Inventors: Zheng Yuan, David Knight, Rohit Deep
  • Publication number: 20110171774
    Abstract: Embodiments of the present invention generally provide a method for forming a plurality of thin film single or multi-junction solar cell in a substrate processing chamber. In one embodiment, a method for processing a plurality of thin film solar cell substrates includes depositing sequentially a first undoped layer and a first doped layer over a surface of a first substrate and a chamber component in a single processing chamber, removing the substrate having the doped and undoped layers from the processing chamber, removing the second doped layer deposited on the chamber component to expose underlying first undoped layer which serves as a seasoning layer for a second substrate to be processed in the processing chamber, and depositing sequentially a second undoped layer and a second doped layer on the second substrate in the processing chamber. In one example, the first undoped layer is amorphous silicon or microcrystalline silicon.
    Type: Application
    Filed: December 14, 2010
    Publication date: July 14, 2011
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Francimar C. Schmitt, Zheng Yuan, Yi Zheng, Fan Yang, Lipan Li
  • Publication number: 20110164107
    Abstract: In one embodiment, source data for a communication session may be split into an audio portion for transmission on a phone channel and a non-audio portion for transmission on a data channel. A server and a phone may accordingly establish an audio portion of a communication session on the phone channel. In response to a trigger, the server may provide a push notification on the data channel to the phone, where the push notification is associated with an application executing on the phone that is configured to participate in the non-audio portion of the communication session on the data channel with the server. Upon obtaining the push notification on the data channel during the audio portion on the phone channel, the application may correspondingly activate on the phone to participate in the non-audio portion of the communication session during the phone's participation in the audio portion (e.g., merging the portions).
    Type: Application
    Filed: January 6, 2010
    Publication date: July 7, 2011
    Inventors: Yongjian Tian, Zheng Yuan, Tejas Bhandarkar
  • Publication number: 20110164735
    Abstract: In one embodiment, a server may obtain source data for a communication session having a combined audio portion and non-audio portion. As such, the server may actively split the audio portion of the communication session from the non-audio portion of the communication session, and then provide the audio portion (to a first set of one or more phones) over a phone channel and the non-audio portion (to a second set of one or more phones) over a separate data channel. The second set of phones may then obtain and merge the audio portion from the phone channel and the non-audio portion from the data channel to reestablish the full communication session.
    Type: Application
    Filed: January 6, 2010
    Publication date: July 7, 2011
    Inventors: Zheng Yuan, Tejas Bhandarkar, Yongjian Tian
  • Publication number: 20110151676
    Abstract: A method for forming a semiconductor structure includes forming a plurality of features across a surface of a substrate, with at least one space being between two adjacent features. A first dielectric layer is formed on the features and within the at least one space. A portion of the first dielectric layer interacts with a reactant derived from a first precursor and a second precursor to form a first solid product. The first solid product is decomposed to substantially remove the portion of the first dielectric layer. A second dielectric layer is formed to substantially fill the at least one space.
    Type: Application
    Filed: March 3, 2011
    Publication date: June 23, 2011
    Applicant: Applied Materials, Inc.
    Inventors: Nitin K. Ingle, Jing Tang, Yi Zheng, Zheng Yuan, Zhenbin Ge, Xinliang Lu, Chien-Teh Kao, Vikash Banthia, William H. McClintock, Mei Chang
  • Publication number: 20110114177
    Abstract: A method and apparatus for forming solar cells is provided. In one embodiment, a photovoltaic device includes a first p-i-n junction cell formed on a substrate, wherein the p-i-n junction cell comprises a p-type silicon containing layer, an intrinsic type silicon containing layer formed over the p-type silicon containing layer, and a n-type silicon containing layer formed over the intrinsic type silicon containing layer, wherein the intrinsic type silicon containing layer comprises a first pair of microcrystalline layer and amorphous silicon layer.
    Type: Application
    Filed: July 19, 2010
    Publication date: May 19, 2011
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Fan Yang, Lin Zhang, Yi Zheng, Francimar Schmitt, Zheng Yuan
  • Patent number: 7945621
    Abstract: In one embodiment, the systems and methods attend a collaboration session; detect content shared during the collaboration session; automatically record the content and a time stamp corresponding to the content; and play at least a portion of the content during the collaboration session.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: May 17, 2011
    Assignee: WebEx Communications, Inc.
    Inventors: Zheng Yuan, David Knight, Rohit Deep
  • Patent number: 7939422
    Abstract: A method for forming a semiconductor structure includes forming a plurality of features across a surface of a substrate, with at least one space being between two adjacent features. A first dielectric layer is formed on the features and within the at least one space. A portion of the first dielectric layer interacts with a reactant derived from a first precursor and a second precursor to form a first solid product. The first solid product is decomposed to substantially remove the portion of the first dielectric layer. A second dielectric layer is formed to substantially fill the at least one space.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: May 10, 2011
    Assignee: Applied Materials, Inc.
    Inventors: Nitin K. Ingle, Jing Tang, Yi Zheng, Zheng Yuan, Zhenbin Ge, Xinliang Lu, Chien-Teh Kao, Vikash Banthia, William H. McClintock, Mei Chang
  • Publication number: 20110023096
    Abstract: In one embodiment, a client device may send one or more sub-session requests to one or more corresponding session controllers through a computer network to obtain one or more corresponding sub-session tokens that indicate in which sub-sessions of an online collaborative computing session the client device is permitted to participate. The client device may then receive particular sub-session tokens (e.g., based on certain permissions), which may then be sent to a collaboration server to establish one or more permitted sub-sessions of the online collaborative computing session with the client device as indicated by the received sub-session tokens.
    Type: Application
    Filed: July 21, 2009
    Publication date: January 27, 2011
    Inventors: Sihai Xiao, Zheng Yuan, David Knight
  • Patent number: 7825038
    Abstract: Methods of depositing a silicon oxide layer on a substrate are described. The methods may include the steps of providing a substrate to a deposition chamber, generating an atomic oxygen precursor outside the deposition chamber, and introducing the atomic oxygen precursor into the chamber. The methods may also include introducing a silicon precursor to the deposition chamber, where the silicon precursor and the atomic oxygen precursor are first mixed in the chamber. The silicon precursor and the atomic oxygen precursor react to form the silicon oxide layer on the substrate, and the deposited silicon oxide layer may be annealed. Systems to deposit a silicon oxide layer on a substrate are also described.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: November 2, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Nitin K. Ingle, Zheng Yuan, Paul Gee, Kedar Sapre
  • Publication number: 20100228824
    Abstract: In one embodiment, an attendee device detects interest to join an online collaborative computing session, and determines a list of distributed servers for the online collaborative computing session in a computer network. The attendee device may then measure a round trip time (RTT) to each distributed server from the attendee device, such that the attendee device may select a distributed server for the online collaborative computing session based on the RTT. Accordingly, the attendee device many then join the online collaborative computing session through the selected distributed server (e.g., which may cascade communication for the session from a hosting distributed server).
    Type: Application
    Filed: March 6, 2009
    Publication date: September 9, 2010
    Applicant: Cisco Technology, Inc.
    Inventors: Jian Lin, Zheng Yuan, Guomin Zhu, Weifeng Shen
  • Publication number: 20100223320
    Abstract: In one embodiment, an online collaborative computing session is initiated between a presenter device and a plurality of attendee devices via a server in a computer network. The server distributes session data from the presenter device to the plurality of attendee devices. To decrease the amount of traffic in the network, at least one of the plurality of attendee devices may be selected as a super node, where each super node is then responsible for one or more corresponding attendee devices of the session. The session data is received at the super nodes and distributed from the super node to its one or more corresponding attendee devices.
    Type: Application
    Filed: February 27, 2009
    Publication date: September 2, 2010
    Inventors: He Huang, Jian Lin, Zheng Yuan, Defeng Lu
  • Publication number: 20100131868
    Abstract: In one embodiment, an application sharing session may be established between a presenter device and one or more viewer devices, and at least one application window may be generated on the presenter device that is to be shared with the one or more viewer devices. At the presenter device, a determination may be made regarding which one or more predefined areas of the application window are to be limitedly shared. Accordingly, the application window may be shared with the one or more viewer devices, while limiting sharing of the one or more predefined areas of the application window.
    Type: Application
    Filed: November 26, 2008
    Publication date: May 27, 2010
    Applicant: Cisco Technology, Inc.
    Inventors: Jitendra P. Chawla, Zheng Yuan
  • Publication number: 20100121959
    Abstract: In one embodiment, a remote access session may be established between a first computer and a second computer. In response to detecting a device in low-level local communication with the first computer via a first local communication port of the first computer, the low-level local communication at the first local communication port may be intercepted and transmitted to the second computer via the remote access session. Then, the low-level local communication may be injected to a second local communication port of the second computer, wherein the second computer responds to the low-level local communication as though the device were located at the second local communication port of the second computer. For example, the device may be configured to autoconnect with the second computer via the remote access session when the device is connected to the first computer.
    Type: Application
    Filed: November 10, 2008
    Publication date: May 13, 2010
    Applicant: Cisco Technology, Inc.
    Inventors: Jian Lin, Zheng Yuan
  • Publication number: 20100088414
    Abstract: In an embodiment, a hosted-on-premises meeting exchange server operates seamlessly with web meeting servers. For example, one computer-implemented method comprises receiving a request from a client computer to join a web meeting; determining whether the client computer is coupled to a local network which includes an on-premises-meeting exchange server; in response to determining that the client computer is coupled to the local network, joining the client computer to the web meeting at the on-premises-meeting exchange server when the on-premises-meeting exchange server has sufficient capacity, and otherwise joining the client computer to the web meeting at an off-premises-meeting exchange server; and in response to determining that the client computer is not coupled to the local network, joining the client computer to the web meeting at the off-premises-meeting exchange server.
    Type: Application
    Filed: October 3, 2008
    Publication date: April 8, 2010
    Inventors: Jian Lin, Zheng Yuan, Weixin Xia, Yongya Wang, Sihai Xiao, Ilan Kasan
  • Patent number: 7674727
    Abstract: A method of filling a gap defined by adjacent raised features on a substrate includes providing a flow of a silicon-containing processing gas to a chamber housing the substrate and providing a flow of an oxidizing gas to the chamber. The method also includes varying over time a ratio of the (silicon-containing processing gas):(oxidizing gas). The method also includes exposing the substrate to nitrous oxide at a temperature less than about 900° C. to anneal the deposited film.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: March 9, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Zheng Yuan, Reza Arghavani, Shankar Venkataraman
  • Patent number: 7674684
    Abstract: A deposition method for releasing a stress buildup of a feature over a semiconductor substrate with dielectric material is provided. The feature includes lines separated by a gap. The method includes forming a liner layer over the feature on the semiconductor substrate in a chamber. A stress of the liner layer over the feature is released to substantially reduce bending of the lines of the feature. A dielectric film is deposited over the stress-released liner layer to substantially fill the gap of the feature.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: March 9, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Jing Tang, Nitin K. Ingle, Zheng Yuan, Rossella Mininni