Patents by Inventor Simon Daniel Brueckheimer

Simon Daniel Brueckheimer 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).

  • Patent number: 8547849
    Abstract: A telecommunications system comprises an asynchronous transfer mode (ATM) network having uncommitted bandwidth, and a plurality of adaptive grooming routers (AGR) coupled to the network. The AGRs comprise a group adapted to function as a virtual transit exchange whose fabric and control are distributed over the group. The visual comprising the AGRs incorporates independent connection control and call routing functions and has means for determining the current system status whereby to set up narrow band connections across the ATM network based on that status determination.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: October 1, 2013
    Assignee: Rockstar Consortium US LP
    Inventors: Simon Daniel Brueckheimer, David John Stacey, Roy Harold Mauger
  • Patent number: 8249075
    Abstract: Traffic from a number of different service type users is multiplexed into minicells for transmission over an ATM link. Service type information is transmitted in a service specific field and is stored. This stored information is used to derive length information to delineate the different length user minicells. The technique occupies less bandwidth than the conventional methods for transmitting cell length information.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: August 21, 2012
    Assignee: Ericsson AB
    Inventors: Simon Daniel Brueckheimer, David John Stacey
  • Patent number: 7990909
    Abstract: A method and apparatus are provided to achieve frequency synchronization between a first clock at a first node and a second clock at a second node of a packet-carrying communications network. At the first node: a property of packet transmission through the network between the first node and the second node is measured; and the measurement of the property is sent to the second node. At the second node, the same property of packet transmission through the network between the first node and the second node is measured. The measurement of the property made at the first node and the measurement of the property made at the second node are used to synchronize the frequency of the second clock with respect to the first clock.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: August 2, 2011
    Assignee: Ciena Corporation
    Inventor: Simon Daniel Brueckheimer
  • Publication number: 20100085960
    Abstract: A telecommunications system comprises an asynchronous transfer mode (ATM) network having uncommitted bandwidth, and a plurality of adaptive grooming routers (AGR) coupled to the network. The AGRs comprise a group adapted to function as a virtual transit exchange whose fabric and control are distributed over the group. The visual comprising the AGRs incorporates independent connection control and call routing functions and has means for determining the current system status whereby to set up narrow band connections across the ATM network based on that status determination.
    Type: Application
    Filed: December 7, 2009
    Publication date: April 8, 2010
    Inventors: Simon Daniel Brueckheimer, David John Stacey, Roy Harold Mauger
  • Publication number: 20090147806
    Abstract: A method and apparatus are provided to achieve frequency synchronization between a first clock at a first node and a second clock at a second node of a packet-carrying communications network. At the first node: a property of packet transmission through the network between the first node and the second node is measured; and the measurement of the property is sent to the second node. At the second node, the same property of packet transmission through the network between the first node and the second node is measured. The measurement of the property made at the first node and the measurement of the property made at the second node are used to synchronize the frequency of the second clock with respect to the first clock.
    Type: Application
    Filed: October 31, 2008
    Publication date: June 11, 2009
    Applicant: NORTEL NETWORKS LIMITED
    Inventor: Simon Daniel BRUECKHEIMER
  • Publication number: 20090067434
    Abstract: Traffic from a number of different service type users is multiplexed into minicells for transmission over an ATM link. Service type information is transmitted in a service specific field and is stored. This stored information is used to derive length information to delineate the different length user minicells. The technique occupies less bandwidth than the conventional methods for transmitting cell length information.
    Type: Application
    Filed: November 10, 2008
    Publication date: March 12, 2009
    Applicant: Nortel Networks Limited
    Inventors: Simon Daniel Brueckheimer, Roy Harold Mauger
  • Patent number: 7463636
    Abstract: Traffic from a number of different service type users is multiplexed into minicells for transmission over an ATM link. Service type information is transmitted in a service specific field and is stored. This stored information is used to derive length information to delineate the different length user minicells. The technique occupies less bandwidth than the conventional methods for transmitting cell length information.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: December 9, 2008
    Assignee: Nortel Networks Limited
    Inventors: Simon Daniel Brueckheimer, David John Stacey
  • Patent number: 6993030
    Abstract: There is disclosed a method for establishing a plurality of ATM adaption layer type 2 channels between interworking functions across a single ATM virtual channel connection. Within each interworking function there are a system management layer entity an ANP layer management identity and a protocol stack. The ANP layer management entities are further sub-divided into a series of functional blocks comprising: Originating procedures, Terminating procedures and Status Record entity. The Status Record entity records whether each AAL2 channel amongst the plurality of AAL2 channels is assigned/unassigned or activated/de-activated. A new AAL2 channel is established between interworking functions when a System Management entity sends in Assign—Request primitive to ANP layer management entity requesting an available AAL2 channel. The status record entity within ANP layer management entity is interrogated and an available AAL2 channel is identified.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: January 31, 2006
    Assignee: Nortel Networks Limited
    Inventors: Keith Caves, Simon Daniel Brueckheimer
  • Patent number: 6990105
    Abstract: Point to point protocol (PPP) traffic is transported over an asynchronous transport link by encapsulating the traffic in AAL2 minicells and transporting the minicells in a single virtual circuit. Minicells from a number of users can be multiplexed in the same virtual circuit.
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: January 24, 2006
    Assignee: Nortel Networks Limited
    Inventors: Simon Daniel Brueckheimer, Leslie Derek Humphrey, David John Stacey
  • Patent number: 6954461
    Abstract: A method of adapting synchronous time division multiplexed (TDM) traffic at an interface between a synchronous network in which the traffic is transported in frames identified by corresponding pointers and labels and an asynchronous network in which the adapted traffic is transported in cells, the method comprising mapping said synchronous frames into primary multiplexed groups, mapping each said primary multiplexed group into traffic cells in a respective asynchronous virtual channel, and providing that virtual circuit with a corresponding virtual channel indicator, and wherein said pointers and labels are mapped into one or more separate asynchronous cells for transport ahead or said traffic cells.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: October 11, 2005
    Assignee: Nortel Networks Limited
    Inventors: Andrew Geoffrey Tomlins, Simon Daniel Brueckheimer, David John Stacey, John A Shotton, Osama Bhagat, Greg Bernstein
  • Patent number: 6882643
    Abstract: A telecommunications network architecture provides transport and switching of user services, particularly PSTN/ISDN services. In the network, connections are set up between end points which typically comprise narrow band exchanges serving subscribers. Calls are set up between the end points via call servers using e.g. ISUP signalling between the end points or exchanges and the call servers. The call servers set up connections via a concatenated series of paths or tunnels across an intermediate MPLS network via media gateways serving respective nodes in the MPLS network. User information packets are carried across the MPLS network by the attachment of an appropriate label, this label being removed on egress from the MPLS network to recover the original packet.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: April 19, 2005
    Assignee: Nortel Networks Limited
    Inventors: Roy Harold Mauger, Simon Daniel Brueckheimer
  • Patent number: 6862295
    Abstract: An interface arrangement provides interfacing between a frame based telecommunications network in which traffic is transported in frames and an asynchronous network in which traffic is transported in cells or packets. Each TDM frame supports a plurality of data structures each comprising one or more channels. Credits corresponding to bandwidth entitlement are issued at a substantially constant rate and are assigned to the data structures according to the size of those structures by a connection control. Each data structure is accorded a threshold number of assigned credits, and when this number has been reached, the data structure is assembled into cells or packets for dispatch into the asynchronous network.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: March 1, 2005
    Assignee: Nortel Networks Limited
    Inventors: David John Stacey, Simon Daniel Brueckheimer, Paul D Welton
  • Publication number: 20040228348
    Abstract: There is disclosed a method for establishing a plurality of ATM adaption layer type 2 channels between interworking functions across a single ATM virtual channel connection. Within each interworking function there are a system management layer entity an ANP layer management identity and a protocol stack. The ANP layer management entities are further sub-divided into a series of functional blocks comprising: Originating procedures, Terminating procedures and Status Record entity. The Status Record entity records whether each AAL2 channel amongst the plurality of AAL2 channels is assigned/unassigned or activated/de-activated. A new AAL2 channel is established between interworking functions when a System Management entity sends in Assign_Request primitive to ANP layer management entity requesting an available AAL2 channel. The status record entity within ANP layer management entity is interrogated and an available AAL2 channel is identified.
    Type: Application
    Filed: June 25, 2004
    Publication date: November 18, 2004
    Inventors: Keith Caves, Simon Daniel Brueckheimer
  • Publication number: 20040223496
    Abstract: Traffic from a number of different service type users is multiplexed into minicells for transmission over an ATM link. Service type information is transmitted in a service specific field and is stored. This stored information is used to derive length information to delineate the different length user minicells. The technique occupies less bandwidth than the conventional methods for transmitting cell length information.
    Type: Application
    Filed: March 18, 2004
    Publication date: November 11, 2004
    Inventors: Simon Daniel Brueckheimer, Roy Harold Mauger
  • Patent number: 6788691
    Abstract: There is disclosed a method for establishing a plurality of ATM adaption layer type 2 channels between interworking functions across a single ATM virtual channel connection. Within each interworking function there are a system management layer entity an ANP layer management identity and a protocol stack. The ANP layer management entities are further sub-divided into a series of functional blocks comprising: Originating procedures, Terminating procedures and Status Record entity. The Status Record entity records whether each AAL2 channel amongst the plurality of AAL2 channels is assigned/unassigned or activated/de-activated. A new AAL2 channel is established between interworking functions when a System Management entity sends in Assign_Request primitive to ANP layer management entity requesting an available AAL2 channel. The status record entity within ANP layer management entity is interrogated and an available AAL2 channel is identified.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: September 7, 2004
    Assignee: Nortel Networks Limited
    Inventors: Keith Caves, Simon Daniel Brueckheimer
  • Patent number: 6778503
    Abstract: A method and apparatus for handling persistence measurement of channel associated signaling for a plurality of line circuits, eg, T1, E1, OC3, STM 1 circuits, which extracts channel associated signaling data from a plurality of line circuits; assembles the channel associated signaling data into a data frame; contains the data frame in a suitable carrier, eg, an AAL 0 cell; monitors a continuous stream of the data frames, to check for changes in line status; and generates an event message data frame when a persistent change of line state has been detected. The extracting of associated signaling data may be provided on a separate card to a call control processor, and using separate processor functionality.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: August 17, 2004
    Assignee: Nortel Networks Limited
    Inventors: Martin Sproat, Julian Frank Barry Cable, Simon Daniel Brueckheimer, Michael Flynn Thomas, Andrew Geoffrey Tomlins, David John Stacey, John Andrew Shotton, Fai Tsang, Stephen Rylant Evans, William Smith
  • Patent number: 6747977
    Abstract: To obviate inefficient use of bandwidth in a packetised system, such as a broadband ATM domain, the use or amount of header information sent in relation to a channel is restricted by one of two principal mechanisms, as exemplified in FIGS. 3 and 4. First, control information incident to a packet interface (20) is interrogated by a processor (21) to determine (50) packet length requirements. A packet length indicator is then generated (52) for inclusion within a header (44) of a packet. Alternatively, a frame (30) is pre-partitioned (60) into several packets (32-42) having different lengths. An addressed subscriber unit (28) is allocated (64) a particular channel, i.e. at least one particular packet within the frame (30), based on data throughput requirements (62), whereby the location of the packet within the frame inherently identifies the length of the packet. Optionally, the data rate used within that packet may also be identified inherently by the location of the packet within the frame (30).
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: June 8, 2004
    Assignee: Nortel Networks Limited
    Inventors: Roger Smith, Simon Daniel Brueckheimer, Fai Tsang
  • Patent number: 6731635
    Abstract: Traffic from a number of different service type users is multiplexed into minicells for transmission over an ATM link. Service type information is transmitted in a service specific field and is stored. This stored information is used to derive length information to delineate the different length user minicells. The technique occupies less bandwidth than the conventional methods for transmitting cell length information.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: May 4, 2004
    Assignee: Nortel Networks Limited
    Inventors: Simon Daniel Brueckheimer, Roy Harold Mauger
  • Patent number: 6714543
    Abstract: The invention relates to a method and apparatus for multiplexing traffic from a plurality of fixed bit rate sources over an ATM network. The traffic from the fixed bit rate users is multiplexed to form a TDM trunk group which is assembled into AAL2 minicells prior to being converted to ATM cells for transmission on the ATM network. By combining the fixed rate traffic sources into a TDM trunk group and then mapping the trunk group into AAL2 minicells, it is possible to improve efficiency of fixed bit rate traffic transmission using the ATM protocol.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: March 30, 2004
    Assignee: Nortel Networks Limited
    Inventors: Simon Daniel Brueckheimer, David John Stacey
  • Patent number: RE40398
    Abstract: A telecommunications system comprises an asynchronous transfer mode (ATM) network having uncommitted bandwidth, and a plurality of adaptive grooming routers (AGR) coupled to the network. The AGRs comprise a group adapted to function as a virtual transit exchange whose fabric and control are distributed over the group. The virtual comprising the AGRs incorporates independent connection control and call routing functions and has means for determining the current system status whereby to set up narrow band connections across the ATM network based on that status determination.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: June 24, 2008
    Assignee: Nortel Networks Limited
    Inventors: Simon Daniel Brueckheimer, David John Stacey, Roy Harold Mauger