Patents by Inventor Shih-cheng Stan Yang

Shih-cheng Stan Yang 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).

  • Adaptive marking for WRED with intra-flow packet priorities in network queues
    Patent number: 9680760
    Abstract: In one embodiment, a router receives a packet, and determines an intra-flow packet priority level of the packet. The router may then map the intra-flow packet priority level to a weighted random early detection (WRED) marking based on running statistics of intra-flow packet priority levels across received flows, and marks the packet with the mapped WRED marking. By placing the marked packet into an outgoing network queue for transmission, the router may then forward or drop the marked packet based on the network queue, accordingly.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: June 13, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Cheng-Jia Lai, Wenyi Wang, Shih-cheng Stan Yang
  • ADAPTIVE MARKING FOR WRED WITH INTRA-FLOW PACKET PRIORITIES IN NETWORK QUEUES
    Publication number: 20150023366
    Abstract: In one embodiment, a router receives a packet, and determines an intra-flow packet priority level of the packet. The router may then map the intra-flow packet priority level to a weighted random early detection (WRED) marking based on running statistics of intra-flow packet priority levels across received flows, and marks the packet with the mapped WRED marking. By placing the marked packet into an outgoing network queue for transmission, the router may then forward or drop the marked packet based on the network queue, accordingly.
    Type: Application
    Filed: July 16, 2013
    Publication date: January 22, 2015
    Inventors: Cheng-Jia Lai, Wenyi Wang, Shih-cheng Stan Yang
  • Shaping multimedia stream bit-rates to adapt to network conditions
    Patent number: 8811167
    Abstract: An apparatus and methods are provided for shaping a transmit bit-rate of a multimedia stream to adapt to the bandwidth of network path on which the multimedia stream is sent between a source and destination. A condition indicative of a bandwidth of the network path is monitored, and at an intermediate point on the network path between the source and destination, the transmit bit-rate of the multimedia stream is adjusted to adapt to the condition indicative of the bandwidth of the path.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: August 19, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Sarat Khilnani, Duanpei Wu, Shih-cheng Stan Yang
  • Techniques for a rate-adaptive video conference bridge
    Patent number: 8760490
    Abstract: A rate adaptive video conference bridge and related techniques are provided. At a video conference bridge, a source video stream is received from a source endpoint device in a network. The source video stream is encoded using a first encoder unit and second encoder unit to generate respective first and second encoded video streams. A determination is made whether to decrease or increase a bit rate of the source video stream based on network condition information. If the bit rate is to be decreased, the first encoder unit is instructed to send the first encoded video stream to a destination endpoint device. If the bit rate is to be increased, the second encoder unit is instructed to send the second encoded video stream to the destination endpoint device.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: June 24, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Duanpei Wu, Jing Li, Shih-cheng Stan Yang, Herbert M. Wildfeuer, Anand Oswal
  • Techniques For a Rate-Adaptive Video Conference Bridge
    Publication number: 20130135427
    Abstract: A rate adaptive video conference bridge and related techniques are provided. At a video conference bridge, a source video stream is received from a source endpoint device in a network. The source video stream is encoded using a first encoder unit and second encoder unit to generate respective first and second encoded video streams. A determination is made whether to decrease or increase a bit rate of the source video stream based on network condition information. If the bit rate is to be decreased, the first encoder unit is instructed to send the first encoded video stream to a destination endpoint device. If the bit rate is to be increased, the second encoder unit is instructed to send the second encoded video stream to the destination endpoint device.
    Type: Application
    Filed: November 30, 2011
    Publication date: May 30, 2013
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Duanpei Wu, Jing Li, Shih-cheng Stan Yang, Herbert M. Wildfeuer, Anand Oswal
  • Shaping Multimedia Stream Bit-Rates to Adapt to Network Conditions
    Publication number: 20120218887
    Abstract: An apparatus and methods are provided for shaping a transmit bit-rate of a multimedia stream to adapt to the bandwidth of network path on which the multimedia stream is sent between a source and destination. A condition indicative of a bandwidth of the network path is monitored, and at an intermediate point on the network path between the source and destination, the transmit bit-rate of the multimedia stream is adjusted to adapt to the condition indicative of the bandwidth of the path.
    Type: Application
    Filed: February 24, 2011
    Publication date: August 30, 2012
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Sarat Khilnani, Duanpei Wu, Shih-cheng Stan Yang