Patents Assigned to U4EA Technologies Limited
  • Patent number: 8743687
    Abstract: There is disclosed a method and controller for controlling an information flow in a data transmission system including receiving a plurality of data packets. The method and controller also includes selectively discarding and/or selectively time-shifting the data packets in a predetermined manner to generate a modified information flow. The method and controller also includes selectively discarding and/or selectively time-shifting the data packets of the modified information flow to generate at least one further modified information flow. The further modified information flow may be obtained in a selected one of a plurality of parallel steps.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: June 3, 2014
    Assignee: U4EA Technologies Limited
    Inventors: Neil James Davies, Peter William Thompson, Judith Yvonne Holyer, Christopher James Vowden, Laura Anne Lafave, Graham Willmott
  • Patent number: 7970888
    Abstract: A method of allocating a priority level in an information flow in a data transmission system including receiving a plurality of data packets and allocating a priority level to each data packet is provided with a controller employing such method. The priority level may be determined in accordance with determining a class of loss of the data packet and a class of service for the data packet. The priority level is also a function of the current load of the information flow. It has been established that the choice for each degree of freedom should preferably be made independently and concurrently. The invention, therefore, provides a method for performing such a composite choice.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: June 28, 2011
    Assignee: U4EA Technologies Limited
    Inventors: Neil James Davies, Peter William Thompson, Judith Yvonne Holyer, Christopher James Vowden, Laura Anne Lafave
  • Patent number: 7573817
    Abstract: There is disclosed a method and controller for controlling an information flow including receiving a plurality of data packets and determining an offered load associated with the data packets. The method and controller also includes selectively discarding ones of the data packets as a function of the offered load to generate a transported load.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: August 11, 2009
    Assignee: U4EA Technologies Limited
    Inventors: Neil James Davies, Judith Yvonne Holyer, Laura Anne Lafave, Christopher James Vowden
  • Patent number: 7535835
    Abstract: There is disclosed a method and controller for controlling an information flow in an acyclic data transmission system including receiving a plurality of data packets, and allocating a priority level for each data packet including a class of loss for the data packet and a class of urgency of service for the data packet. The method and controller also include servicing the data packets in accordance with the priority levels and outputting the data packets at a configured rate.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: May 19, 2009
    Assignee: U4EA Technologies Limited
    Inventors: Neil James Davies, Peter William Thompson, Judith Yvonne Holyer, Christopher James Vowden, Laura Anne Lafave, Graham Willmott
  • Patent number: 7499400
    Abstract: There is disclosed a method and controller for controlling an information flow in a data transmission system including receiving a plurality of data packets having a received packet length and at a received sample rate. The method and controller also includes determining a configured packet length for each data packet based on a configured service rate for each data packet. The method and controller may also include scheduling each data packet in accordance with a respective configured packet length.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: March 3, 2009
    Assignee: U4EA Technologies Limited
    Inventors: Neil James Davies, Peter William Thompson, Judith Yvonne Holyer, Christopher James Vowden, Laura Anne Lafave, Graham Willmott
  • Publication number: 20080165689
    Abstract: There is disclosed a method and controller for controlling an information flow in a data transmission system including receiving a plurality of data packets having a received packet length and at a received sample rate. The method and controller also includes determining a configured packet length for each data packet based on a configured service rate for each data packet. The method and controller may also include scheduling each data packet in accordance with a respective configured packet length.
    Type: Application
    Filed: April 3, 2003
    Publication date: July 10, 2008
    Applicant: U4EA Technologies Limited
    Inventors: Neil Davies, Judith Holyer, Laura Lafave, Peter Thompson, Christopher Vowden, Graham Willmott
  • Patent number: 7006435
    Abstract: A routing device for routing streams at a node in a packet transmission network receives a stream request, reads specified parameters and any values for loss and delay already incurred at preceding nodes in the network, or specified parameters as modified to take account of loss and delay already incurred at preceding nodes in the network, to determine in conjunction with existing streams already being handled by the routing device whether to accept or reject the stream, allocates one or more buffers to the stream if the stream request has been accepted, transmits the stream request with modified values for loss and delay, or with modified parameters to take account of loss and delay incurred at this and preceding nodes in the network if the stream request has been accepted, and returns a fail signal if the stream request has been rejected.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: February 28, 2006
    Assignee: U4EA Technologies Limited
    Inventors: Neil James Davies, Judith Yvonne Holyer, Peter William Thompson, Jeremy Thomas Bradley, Pauline Patricia Francis-Cobley
  • Publication number: 20040196792
    Abstract: There is disclosed a method and controller for controlling an information flow in a data transmission system including receiving a plurality of data packets. The method and controller also includes selectively discarding and/or selectively time-shifting the data packets in a predetermined manner to generate a modified information flow. The method and controller also includes selectively discarding and/or selectively time-shifting the data packets of the modified information flow to generate at least one further modified information flow. The further modified information flow may be obtained in a selected one of a plurality of parallel steps.
    Type: Application
    Filed: April 3, 2003
    Publication date: October 7, 2004
    Applicant: U4EA Technologies Limited
    Inventors: Neil James Davies, Judith Yvonne Holyer, Laura Anne Lafave, Peter William Thompson, Christopher James Vowden, Graham Willmott
  • Publication number: 20040196791
    Abstract: There is disclosed a method and controller for controlling an information flow in a data transmission system including receiving a plurality of data packets having a received packet length and at a received sample rate. The method and controller also includes determining a configured packet length for each data packet based on a configured service rate for each data packet. The method and controller may also include scheduling each data packet in accordance with a respective configured packet length.
    Type: Application
    Filed: April 3, 2003
    Publication date: October 7, 2004
    Applicant: U4EA Technologies Limited
    Inventors: Neil James Davies, Judith Yvonne Holyer, Laura Anne Lafave, Peter William Thompson, Christopher James Vowden, Graham Willmott
  • Publication number: 20040199655
    Abstract: A method of allocating a priority level in an information flow in a data transmission system including receiving a plurality of data packets and allocating a priority level to each data packet is provided with a controller employing such method. The priority level may be determined in accordance with determining a class of loss of the data packet and a class of service for the data packet. The priority level is also a function of the current load of the information flow. It has been established that the choice for each degree of freedom should preferably be made independently and concurrently. The invention, therefore, provides a method for performing such a composite choice.
    Type: Application
    Filed: April 3, 2003
    Publication date: October 7, 2004
    Applicant: U4EA Technologies Limited
    Inventors: Neil James Davies, Judith Yvonne Holyer, Laura Anne Lafave, Peter William Thompson, Christopher James Vowden
  • Publication number: 20040196855
    Abstract: There is disclosed a method and controller for controlling an information flow in an acyclic data transmission system including receiving a plurality of data packets, and allocating a priority level for each data packet including a class of loss for the data packet and a class of urgency of service for the data packet. The method and controller also include servicing the data packets in accordance with the priority levels and outputting the data packets at a configured rate.
    Type: Application
    Filed: April 3, 2003
    Publication date: October 7, 2004
    Applicant: U4EA Technologies Limited
    Inventors: Neil James Davies, Judith Yvonne Holyer, Laura Anne Lafave, Peter William Thompson, Christopher James Vowden, Graham Willmott
  • Publication number: 20040022190
    Abstract: There is disclosed a method and controller for controlling an information flow in a data transmission system. In one embodiment, the method and controller receives a plurality of data packets. The method and controller further generate a modified information flow by providing a variable spacing between the data packets that is exponentially distributed. The variable spacing between the data packets may be random or pseudo-random.
    Type: Application
    Filed: April 3, 2003
    Publication date: February 5, 2004
    Applicant: U4EA Technologies Limited
    Inventors: Neil James Davies, Judith Yvonne Holyer, Laura Anne Lafave, Peter William Thompson, Christopher James Vowden, Graham Willmott Redfield
  • Publication number: 20040022193
    Abstract: There is disclosed a method and controller for controlling an information flow including receiving a plurality of data packets and determining an offered load associated with the data packets. The method and controller also includes selectively discarding ones of the data packets as a function of the offered load to generate a transported load.
    Type: Application
    Filed: April 3, 2003
    Publication date: February 5, 2004
    Applicant: U4EA Technologies Limited
    Inventors: Neil James Davies, Judith Yvonne Holyer, Laura Anne Lafave, Christopher James Vowden
  • Publication number: 20040022246
    Abstract: There is disclosed a method and controller for controlling an information flow in a data transmission system including receiving a plurality of data packets, and allocating a packet identifier and a priority level to each data packet. The method and controller also include servicing each data packet identifier based on the priority level and outputting each data packet according to a sequence. The method and controller may further include selectively discarding ones of the data packets and selectively time-shifting ones of the data packets.
    Type: Application
    Filed: April 3, 2003
    Publication date: February 5, 2004
    Applicant: U4EA Technologies Limited
    Inventors: Neil James Davies, Judith Yvonne Holyer, Laura Anne Lafave, Peter William Thompson, Christopher James Vowden, Graham Willmott