Patents by Inventor Bouchung Lin

Bouchung Lin 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).

  • Constant bit rate transport in a contention based medium access control
    Patent number: 6467091
    Abstract: In a two way cable system that includes a controller and a plurality of user terminals, a method of granting rights for upstream data transmission from the user terminals includes processing contention requests to generate contention grants and maintaining a list of connections, each connection having specified therefor a predetermined bit rate. The controller sends a downstream data stream to the user terminals and receives an upstream data stream from the user terminals. The downstream data stream includes a plurality of grant fields, and the upstream data stream includes upstream data slots and upstream control slots.
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: October 15, 2002
    Assignee: Scientific-Atlanta, Inc.
    Inventors: Bouchung Lin, Francis R. Koperda
  • Providing constant bit rate upstream data transport in a two way cable system by scheduling preemptive grants for upstream data slots using selected fields of a plurality of grant fields
    Patent number: 5966163
    Abstract: In a two way cable system that includes a controller and a plurality of user terminals, a method of granting rights for upstream data transmission from the user terminals includes processing contention requests to generate contention grants and maintaining a list of connections, each connection having specified therefor a predetermined bit rate. The controller sends a downstream data stream to the user terminals and receives an upstream data stream from the user terminals. The downstream data stream includes a plurality of grant fields, and the upstream data stream includes upstream data slots and upstream control slots.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: October 12, 1999
    Assignee: Scientific-Atlanta, Inc.
    Inventors: Bouchung Lin, Francis R. Koperda
  • Adaptive rate-based congestion control in packet networks
    Patent number: 5936940
    Abstract: An enhanced adaptive rate-based congestion control system for packet transmission networks uses the absolute rather than the relative network queuing delay measure of congestion in the network. Other features of the congestion control system include test transmissions only after a predetermined minimum time, after the receipt of an acknowledgment from the previous test, or transmission of a minimum data burst, whichever takes longest. The congestion control system also provides a small reduction in rate at low rates and a large reduction in rates at high rates. A logarithmic rate control function provides this capability. Rate damping is provided by changing all of the values in a rate look-up tables in response to excessive rate variations. Finally, the fair share of the available bandwidth is used as the starting point for rates at start-up or when a predefined rate damping region is exited.
    Type: Grant
    Filed: August 22, 1996
    Date of Patent: August 10, 1999
    Assignee: International Business Machines Corporation
    Inventors: Gerald Arnold Marin, Lap T. Huynh, Ken Van Vu, Raif O. Onvural, Levent Gun, Bouchung Lin
  • Constant bit rate transport in a contention based medium access control
    Patent number: RE44211
    Abstract: In a two way cable system that includes a controller and a plurality of user terminals, a method of granting rights for upstream data transmission from the user terminals includes processing contention requests to generate contention grants and maintaining a list of connections, each connection having specified therefor a predetermined bit rate. The controller sends a downstream data stream to the user terminals and receives an upstream data stream from the user terminals. The downstream data stream includes a plurality of grant fields, and the upstream data stream includes upstream data slots and upstream control slots.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: May 7, 2013
    Assignee: Scientific-Atlanta, LLC
    Inventors: Bouchung Lin, Francis R. Koperda