Patents by Inventor Stephen Routliffe

Stephen Routliffe 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).

  • Publication number: 20060190641
    Abstract: A buffer management system for cooperating with a packet based switching system is proposed. The purpose of this system is to reduce traffic congestion, ameliorate its effects, provide fairness to each data source, and to increase functionality while respecting advantageous system characteristics. Fabric output buffers include an arbitration function, a quality of service function, and are associated with individual routing tables. The system uses shallow logic that allows for single clock cycle operation even at high clock speeds. In order to provide for system control of bandwidth, sources with bandwidth practices counter to system interests are addressed. Where there is a conflict of sources over a resource, the buffer management system arbitrates traffic to resolve conflicts in a timely manner while fairly allocating traffic share using a weighted round robin arbitration scheme.
    Type: Application
    Filed: April 10, 2006
    Publication date: August 24, 2006
    Inventors: Stephen Routliffe, Huaiqi Xu, Barry Wood, Victor Menasce
  • Patent number: 7076587
    Abstract: A buffer management system for cooperating with a packet based switching system is proposed. The purpose of this system is to reduce traffic congestion, ameliorate its effects, provide fairness to each data source, and to increase functionality while respecting advantageous system characteristics. Fabric output buffers include an arbitration function, a quality of service function, and are associated with individual routing tables. The system uses shallow logic that allows for single clock cycle operation even at high clock speeds. In order to provide for system control of bandwidth, sources with bandwidth practices counter to system interests are addressed. Where there is a conflict of sources over a resource, the buffer management system arbitrates traffic to resolve conflicts in a timely manner while fairly allocating traffic share using a weighted round robin arbitration scheme.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: July 11, 2006
    Assignee: Tundra Semiconductor Corporation
    Inventors: Stephen Routliffe, Huaiqi Xu, Barry Wood, Victor Menasce
  • Patent number: 6826149
    Abstract: A cell transmission rate controller for use in providing constant bit rate services in an ATM or like network has a predictor for determining the payload size of the next cell, and a plurality of buffers for storing TDM data. A control circuit monitors the buffers and generates a trigger signal to produce a cell when sufficient TDM data has accumulated to fill the next cell.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: November 30, 2004
    Assignee: Zarlink Semiconductor Inc.
    Inventor: Stephen Routliffe
  • Publication number: 20040044810
    Abstract: A buffer management system for cooperating with a packet based switching system is proposed. The purpose of this system is to reduce traffic congestion, ameliorate its effects, provide fairness to each data source, and to increase functionality while respecting advantageous system characteristics. Fabric output buffers include an arbitration function, a quality of service function, and are associated with individual routing tables. The system uses shallow logic that allows for single clock cycle operation even at high clock speeds. In order to provide for system control of bandwidth, sources with bandwidth practices counter to system interests are addressed. Where there is a conflict of sources over a resource, the buffer management system arbitrates traffic to resolve conflicts in a timely manner while fairly allocating traffic share using a weighted round robin arbitration scheme.
    Type: Application
    Filed: May 16, 2003
    Publication date: March 4, 2004
    Applicant: Tundra Semiconductor Corporation
    Inventors: Stephen Routliffe, Huaiqi Xu, Barry Wood, Victor Menasce