Patents by Inventor Yaojun Sun
Yaojun Sun 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).
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Patent number: 8239900Abstract: What is disclosed is a method of operating a video system. The method includes, in a video server, monitoring a geographic location of a wireless communication device, transferring reference frames of a video for delivery to the wireless communication device over a wireless communication system if the geographic location is within a group of predefined geographic areas and stopping the transfer of the reference frames if the geographic location is not within the group of predefined geographic areas. The method also includes, in the video server, transferring update frames of the video for delivery to the wireless communication device over the wireless communication system without regard to whether the geographic location is within the group of predefined geographic areas. The method also includes, in the wireless communication device, receiving the reference frames and the update frames of the video over the wireless communication system and displaying the video.Type: GrantFiled: August 27, 2008Date of Patent: August 7, 2012Assignee: Clearwire IP Holdings LLCInventor: Yaojun Sun
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Patent number: 8239911Abstract: What is disclosed is a method of operating a video system. The method includes determining a projected geographic path of a mobile communication device and determining a transfer schedule for reference frames of a video based on the projected geographic path. The method also includes transferring the reference frames of the video based on the transfer schedule for delivery to the mobile communication device over a wireless communication system and transferring update frames of the video for delivery to the mobile communication device over the wireless communication system without regard to the projected geographic path.Type: GrantFiled: October 22, 2008Date of Patent: August 7, 2012Assignee: Clearwire IP Holdings LLCInventor: Yaojun Sun
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Patent number: 8234158Abstract: A method, system, and apparatus are provided for integrating advertisements with a multimedia stream to create a resultant media stream. The depicted embodiments analyze a text-based data stream a multimedia stream to identify advertisement insertion points. Further, the depicted embodiments communicate with a rule-based database to acquire cue requirements and an advertising database to receive the advertisements. The cue requirements are used to incorporate the advertisements into with the multimedia stream to produce a resulting content stream. The resulting content stream may be provided to a user and/or computing device.Type: GrantFiled: May 7, 2008Date of Patent: July 31, 2012Assignee: Sprint Communications Company L.P.Inventors: Yaojun Sun, Lyle T Bertz, Chuma Ubakaeze Agogbua, Christopher J. Mateski
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Patent number: 8214520Abstract: Media, methods and systems are provided for coordinating changes of network sources for media streams in a telecommunications network. The streams communicate instances of media content via packets to devices. A first network source streams packets of an instance of media content to a device. Each packet includes information regarding the temporal ordering of that packet within the instance and information regarding the sequencing of the packet within the stream. It is determined that a second network source should stream the instance of media content. A point in the temporal ordering within the instance is identified and communicated at which the second network source will provide the instance of media content. The second network source streams to the mobile device the instance of media content from the identified point, without requiring adjustment of the information regarding the sequencing of the packets within the stream.Type: GrantFiled: February 7, 2011Date of Patent: July 3, 2012Assignee: Sprint Communications Company L.P.Inventors: Lyle T. Bertz, Ayodeji Abidogun, Badri P. Subramanyan, Yaojun Sun, John W. Davis
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Patent number: 8191163Abstract: Methods, systems, and media are provided for rights protection of an instance of media content in a hybrid downloading and streaming media environment. A request from a device to download an instance of media content is communicated. Verification is obtained as to whether or not the device is authorized to receive and execute the instance. The instance of media content is streamed so that portions may be downloaded. The instance of media content also includes interspersed, non-storable authorization information. When subsequent execution of the instance of stored media content is attempted, a subsequent request for the authorization information is communicated. Only the authorization information is streamed for the subsequent request, allowing execution without burdening network resources with data-intensive streams.Type: GrantFiled: June 27, 2008Date of Patent: May 29, 2012Assignee: Sprint Communications Company L.P.Inventors: Yaojun Sun, Jing Gu
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Publication number: 20120071178Abstract: Methods and systems are described for providing a presence service that is useful for mobile telecommunications devices. A plurality of outgoing presence updates are sent to a presence client. The system monitors the level of network traffic and determines whether the client is in a region of high network load, and if so, the system throttles the outgoing presence updates during the condition of high network load. The level of throttling may depend at least in part on the amount of time that has elapsed since the presence client began a presence session, and/or the amount of time that has elapsed since an incoming presence update was received from the presence client. In determining the latter amount of elapsed time, the system may consider only the amount of time elapsed since an incoming non-automatic presence update was received from the presence client.Type: ApplicationFiled: September 22, 2011Publication date: March 22, 2012Applicant: SPRINT SPECTRUM L.P.Inventors: Yaojun Sun, Jing Qu, Joseph Schaedler, Wei-Ming Lan, Douglas R. Green
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Patent number: 8064925Abstract: Methods and systems for determining the density and velocity of wireless communication devices (WCDs) on a road are provided. A preferred embodiment involves determining a set of WCDs that are being served by a plurality of wireless coverage areas that intersect the road. This set of WCDs is narrowed to include only those WCDs that are (1) presumed to be in motion and (2) within a predefined geographic definition of the road. The density and aggregate velocity of the resulting WCDs is determined. From these determinations, the traffic density and aggregate traffic velocity of vehicles on the road can be estimated and an associated output can be provided.Type: GrantFiled: October 8, 2008Date of Patent: November 22, 2011Assignee: Sprint Spectrum L.P.Inventors: Yaojun Sun, Zheng Cai
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Patent number: 8060121Abstract: Methods and systems are described for providing a presence service that is particularly useful for mobile telecommunications devices. A plurality of outgoing presence updates are sent to a presence client. The system monitors the level of network traffic and determines whether the client is in a region of high network load. If the client is in a region experiencing a condition of high network load, the system throttles the outgoing presence updates during the condition of high network load. The level of throttling may depend at least in part on the amount of time that has elapsed since the presence client began a presence session, and/or the amount of time that has elapsed since an incoming presence update was received from the presence client. In determining the latter amount of elapsed time, the system may consider only the amount of time elapsed since an incoming non-automatic presence update was received from the presence client.Type: GrantFiled: November 6, 2007Date of Patent: November 15, 2011Assignee: Sprint Spectrum L.P.Inventors: Yaojun Sun, Jing Qu, Joseph Schaedler, Wei-Ming Lan, Douglas R. Green
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Patent number: 8045557Abstract: Methods, media, and systems are provided for optimizing the use of broadcast channels for group communication streams on a wireless telecommunications data network. Transmission proxy servers associated with base stations are used to determine whether a broadcast channel or unicast channel is most efficient for transmission of a group communication stream. Transmission proxy servers examine factors such as number of users, movement, duration and bandwidth required to make the channel determination. A contact management server coordinates the authentication across multiple access networks in coordination with the transmission proxy servers. Delivery can be more flexible, higher service levels can be more easily guaranteed, and secure but seamless handoffs are possible utilizing the claimed embodiments.Type: GrantFiled: February 29, 2008Date of Patent: October 25, 2011Assignee: Clear Wireless LLCInventors: Yaojun Sun, Jing Qu
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Patent number: 8032671Abstract: Systems, methods, and computer-readable media for resuming a media object presented following a data loss event are provided. A physical disconnection that occurs at a point during the presentation of the media object is detected. The physical disconnection interrupts the presentation of the media object. Upon detecting the physical disconnection, a reestablishment of the physical connection is detected. Subsequently, an option to resume the presentation of the media object at the interrupted point is presented to a user.Type: GrantFiled: December 23, 2010Date of Patent: October 4, 2011Assignee: Sprint Communications Company L.P.Inventor: Yaojun Sun
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Patent number: 7930421Abstract: Media, methods and systems are provided for coordinating changes of network sources for media streams in a telecommunications network. The streams communicate instances of media content via packets to devices. A first network source streams packets of an instance of media content to a device. Each packet includes information regarding the temporal ordering of that packet within the instance and information regarding the sequencing of the packet within the stream. It is determined that a second network source should stream the instance of media content. A point in the temporal ordering within the instance is identified and communicated at which the second network source will provide the instance of media content. The second network source streams to the mobile device the instance of media content from the identified point, without requiring adjustment of the information regarding the sequencing of the packets within the stream.Type: GrantFiled: September 22, 2008Date of Patent: April 19, 2011Assignee: Sprint Communications Company L.P.Inventors: Lyle Bertz, Ayodeji Abidogun, Badri P. Surbramanyan, Yaojun Sun, John W. Davis
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Patent number: 7877525Abstract: Systems, methods, and computer-readable media for resuming a media object presented following a data loss event are provided. A physical disconnection that occurs at a point during the presentation of the media object is detected. The physical disconnection interrupts the presentation of the media object. Upon detecting the physical disconnection, a reestablishment of the physical connection is detected. Subsequently, an option to resume the presentation of the media object at the interrupted point is presented to a user.Type: GrantFiled: May 2, 2008Date of Patent: January 25, 2011Assignee: Sprint Communications Company L.P.Inventor: Yaojun Sun
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Publication number: 20100040134Abstract: What is disclosed is a method of operating a video system. The method includes, in a video server, monitoring a quality indicator for wireless communications between a wireless communication system and a wireless communication device, transferring reference frames of a video for delivery to the wireless communication device over the wireless communication system if the quality indicator indicates a particular quality level and stopping the transfer of the reference frames if the quality indicator does not indicate the particular quality level, and transferring update frames of the video for delivery to the wireless communication device over the wireless communication system without regard to whether the quality indicator indicates the particular quality level. The method also includes, in the wireless communication device, receiving the reference frames and the update frames of the video over the wireless communication system, and displaying the video.Type: ApplicationFiled: August 18, 2008Publication date: February 18, 2010Applicant: Sprint Communications Company L.P.Inventor: Yaojun Sun