Patents by Inventor Leslie Humphrey

Leslie Humphrey 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: 20200084080
    Abstract: A digital subscriber line transceiver for transmitting data over a twisted metallic pair using an orthogonal frequency division multiplex technique and employing a time division duplex mode of operation is operable to adopt a plurality of different framing structures including a first framing structure having a frame duration equal to a first predetermined frame duration period and including a downstream set of symbols and an upstream set of symbols, with gap after each set of symbols summing to a total gap duration of one symbol duration. The different framing structures further include a second framing structure having a frame duration equal to the first predetermined frame duration period and including first and second downstream sets of symbols, first and second upstream sets of symbols and gaps after each of these sets of symbols summing to a total gap duration of an integer number of one or more symbol durations.
    Type: Application
    Filed: March 9, 2018
    Publication date: March 12, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Ian Cooper, Ian Horsley, Leslie Humphrey
  • Publication number: 20200028972
    Abstract: A transmitter for transmitting data, using a discrete multi-tone modulation technique, to one or more receiver devices, each of which is connected to the transmitter device via at least one respective pair of wires, each receiver device being operable to receive signals detected as a change over time in the potential difference across the local ends of each respective pair of wires extending between the receiver and the transmitter device, is operable to transmit signals onto the wires extending between the transmitter device and the one or more receiver devices in a plurality of different modes, over a plurality of different channels, the different modes including phantom and differential modes and the different channels including a first set of phantom channels.
    Type: Application
    Filed: September 27, 2017
    Publication date: January 23, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Anas AL RAWI, Leslie HUMPHREY
  • Publication number: 20200021331
    Abstract: A method and apparatus for transmitting data from a transmitter device to one or more receiver devices connected to the transmitter device via a respective wire connection, the transmitter device being operable to transmit signals onto the wire connections and a further wire connection at different tones, the method comprising: for each tone, allocating signals transmitted on the further wire connection as supporting signals for a particular wire connection, and measuring electromagnetic coupling between the further wire connection and that particular wire connection; using the measurements, determining a power allocation for transmitting a supporting signal on the further wire connection; for one or more of the tones: transmitting a signal onto the particular wire connection, and transmitting a supporting signal onto the further wire connection at the determined transmission power, thereby to cause crosstalk interference in the particular wire connection.
    Type: Application
    Filed: April 3, 2018
    Publication date: January 16, 2020
    Inventors: Anas AL RAWI, Leslie HUMPHREY, Trevor LINNEY
  • Publication number: 20190363900
    Abstract: A network node for use in a hybrid fiber-copper access network, wherein the node includes DSL and reverse-power feed functionality. The node has a substantially cylindrical shape such that it receives an input metallic cable at a first end, an output metallic cable at a second end and an optical fiber cable which is received at a point along the body of the node.
    Type: Application
    Filed: December 21, 2017
    Publication date: November 28, 2019
    Applicant: British Telecommunications Public Limited Company
    Inventors: Leslie Humphrey, Ian Horsley, Ian Cooper, Trevor Linney, Trevor Morsman
  • Publication number: 20190288744
    Abstract: An aggregation device is arranged to receive a plurality of lines each of which is connected to a user premises and wherein one of the user premises is a multi-terminating-point enabled premises and includes a splitter device connected to the line and at least two distinct terminating points each of which is connected to the splitter device via an in-premises connection and is operable to terminate a two part connection between the respective terminating point and the aggregation device via the splitter device, and the aggregation device includes a transmitter portion, a memory, determination means, and selection means.
    Type: Application
    Filed: November 7, 2017
    Publication date: September 19, 2019
    Applicant: British Telecommunications Public Limited Company
    Inventors: Ian HORSLEY, Trevor LINNEY, Leslie HUMPHREY, Anas AL RAWI
  • Publication number: 20190281166
    Abstract: A system for transmitting data to a first and a second user device within a user's premises, the system including a distribution point having an aggregation device comprising a plurality of access network modems and having a plurality of lines connected thereto, a splitter device connected to the aggregation point 10 via one of the lines connected thereto and being located within the user's premises, a first connection between the splitter device and a first customer premises equipment modem, the first customer premises equipment modem being connected to the first user device, and a second connection between the splitter device and a second customer premises equipment modem, the second customer premises equipment modem being connected to the second user device, wherein the aggregation device is operable to transmit data for the first device via a first one of the plurality of modems in the aggregation device, the splitter device and the first customer premises equipment modem using a Digital Subscriber Line p
    Type: Application
    Filed: November 7, 2017
    Publication date: September 12, 2019
    Applicant: British Telecommunications Public Limited Company
    Inventors: Ian HORSLEY, Trevor LINNEY, Leslie HUMPHREY
  • Patent number: 10305716
    Abstract: In a method of transmitting data between a transmitter and a receiver via two pairs of wires in a differential mode, the method comprises transmitting, from the transmitter to the receiver, related signals onto the two pairs of wires in respect of each tone in a first subset of tones and processing the received signals in dependence upon estimated channel transfer functions associated with both direct and crosstalk channels. The method further comprises transmitting, from the transmitter to the receiver, unrelated signals onto the two pairs of wires for each tone in a second subset of the tones, the unrelated signals being vector precoded before transmission and wherein a cut-off frequency and/or tone demarcates between the first and the second subsets of tones.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: May 28, 2019
    Assignee: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
    Inventors: Leslie Humphrey, Anas Al Rawi
  • Publication number: 20190089408
    Abstract: A system for transmitting data between two transceivers comprises a first transceiver (100e) connected to a second transceiver (100f) by means of a connection 41b comprising a plurality of pairs of wires. Each transceiver comprises a transmitter portion and a receiver portion. The transmitter portion comprises a transmitter for transmitting a set of data signals over the pairs of wires each pair of wires having a nearside end and a distal end, the nearside ends being connected to the transmitter and at least some of the distal ends being connected to the receiver portion of the other transmitter (100e), the data signals comprising a first subset of data signals and a second subset of data signals.
    Type: Application
    Filed: March 30, 2017
    Publication date: March 21, 2019
    Inventors: Leslie HUMPHREY, Anas AL RAWI
  • Publication number: 20190082244
    Abstract: A telecommunications access network comprises a primary aggregation point in the form of an exchange, a plurality of optic fiber to metallic pair interface aggregation points which may be in the form of Distribution Point Units (DPUs) each of which is connected to the primary aggregation point by a respective optical fiber connection, and a plurality of terminating devices which may be in the form of customer premises equipment (CPE) devices, each of which is connected to a respective one of the optic fiber to metallic pair interface aggregation points by a respective twisted metallic pair connection. The access network further includes a plurality of metallic, interface-interface connections between one or more pairs of the optic fiber to metallic pair interface aggregation points. Each metallic, interface-interface connection preferably comprises three or more twisted metallic pairs of wires.
    Type: Application
    Filed: March 30, 2017
    Publication date: March 14, 2019
    Applicant: British Telecommunications Public Limited Company
    Inventors: Anas AL RAWI, Leslie HUMPHREY, Trevor MORSMAN
  • Patent number: 10193594
    Abstract: A method of transmitting data from a transmitter device to a plurality of receiver devices each of which is connected to the transmitter device via a respective wire connection the method comprising transmitting a common signal onto all or both of the respective wire connections and using a multiple access technique to enable respective virtual data channels to be generated for transmitting data from the transmitter device to each of the receiver devices via its own respective virtual data channel.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: January 29, 2019
    Assignee: British Telecommunications Public Limited Company
    Inventors: Anas Al Rawi, Leslie Humphrey, Trevor Linney, Ian Horsley
  • Patent number: 10097236
    Abstract: A transmitter device 16 for transmitting data to a plurality of receiver devices 51, 52, 53, each of which is connected to the transmitter device via at least one respective pair of wires 21, 22, 23, each receiver device being operable to receive signals detected as a change over time in the potential difference across the local ends of each respective pair of wires extending between the receiver device and the transmitter device, the transmitter device being operable to transmit signals onto the wires extending between the transmitter device and the plurality of receiver devices in a plurality of different modes, over a plurality of different channels, the different modes including phantom and differential modes and the different channels including a first set of phantom channels, the transmitter comprising a phantom channel selector 1690 for selecting a second set of one or more phantom channels from the first set, the second set being a proper subset of the first set comprising one or more of the phantom c
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: October 9, 2018
    Assignee: BRITISH TELECOMMUNICATION PUBLIC LIMITED COMPANY
    Inventors: Anas Al Rawi, Leslie Humphrey
  • Patent number: 10091022
    Abstract: This disclosure includes a method, and a device for implementing the method, for creating a channel for transmitting data on a Digital Subscriber Line (DSL) connection, the method comprising: method for creating a channel for transmitting data on a Digital Subscriber Line (DSL) connection, the method comprising: defining a plurality of sets of tones, wherein each set of tones includes one or more tones used by a DSL connection; monitoring the transmission characteristics of each set of tones in the plurality of sets of tones; and creating a first channel for transmitting data on the DSL connection, including allocating a first set of tones of the plurality of sets of tones to the first channel based on the monitored transmission characteristics of the first set of tones and the transmission requirements of the first channel.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: October 2, 2018
    Assignee: British Telecommunications Public Limited Company
    Inventors: Ian Horsley, Leslie Humphrey
  • Patent number: 10069617
    Abstract: Apparatus for communicating data between a transmitter device 16 and a first 51 and a second 52 receiver device, the receiver devices being connected, in use, to the transmitter device via a first 21 and a second 22 pair of wires respectively. Each receiver device is operable to receive signals detected as a change over time in the potential difference across the local ends of each respective pair of wires extending between the respective receiver device and the transmitter device, and the transmitter device is operable to transmit signals onto the wires at the transmitter ends thereof in order to transmit signals via a direct differential mode to each respective receiver via its respective pair of wires.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: September 4, 2018
    Assignee: BRITISH TELECOMMUNICATIONS public limited company
    Inventors: Anas Al Rawi, Leslie Humphrey, Trevor Linney
  • Publication number: 20180083815
    Abstract: A system (100), (200), (310), (320) for transmitting data between an upstream transceiver (100) and a downstream transceiver (200) via two pairs of wires (310), (320) extending between the transceivers.
    Type: Application
    Filed: March 30, 2016
    Publication date: March 22, 2018
    Inventors: Leslie HUMPHREY, Anas AL RAWI
  • Publication number: 20180062700
    Abstract: A transmitter device 16 for transmitting data to a plurality of receiver devices 51, 52, 53, each of which is connected to the transmitter device via at least one respective pair of wires 21, 22, 23, each receiver device being operable to receive signals detected as a change over time in the potential difference across the local ends of each respective pair of wires extending between the receiver device and the transmitter device, the transmitter device being operable to transmit signals onto the wires extending between the transmitter device and the plurality of receiver devices in a plurality of different modes, over a plurality of different channels, the different modes including phantom and differential modes and the different channels including a first set of phantom channels, the transmitter comprising a phantom channel selector 1690 for selecting a second set of one or more phantom channels from the first set, the second set being a proper subset of the first set comprising one or more of the phantom c
    Type: Application
    Filed: February 26, 2016
    Publication date: March 1, 2018
    Inventors: Anas AL RAWI, Leslie HUMPHREY
  • Publication number: 20180034618
    Abstract: Apparatus for communicating data between a transmitter device 16 and a first 51 and a second 52 receiver device, the receiver devices being connected, in use, to the transmitter device via a first 21 and a second 22 pair of wires respectively. Each receiver device is operable to receive signals detected as a change over time in the potential difference across the local ends of each respective pair of wires extending between the respective receiver device and the transmitter device, and the transmitter device is operable to transmit signals onto the wires at the transmitter ends thereof in order to transmit signals via a direct differential mode to each respective receiver via its respective pair of wires.
    Type: Application
    Filed: March 2, 2016
    Publication date: February 1, 2018
    Inventors: Anas AL RAWI, Leslie HUMPHREY, Trevor LINNEY
  • Publication number: 20170279634
    Abstract: This disclosure includes a method, and a device for implementing the method, for creating a channel for transmitting data on a Digital Subscriber Line (DSL) connection, the method comprising: method for creating a channel for transmitting data on a Digital Subscriber Line (DSL) connection, the method comprising: defining a plurality of sets of tones, wherein each set of tones includes one or more tones used by a DSL connection; monitoring the transmission characteristics of each set of tones in the plurality of sets of tones; and creating a first channel for transmitting data on the DSL connection, including allocating a first set of tones of the plurality of sets of tones to the first channel based on the monitored transmission characteristics of the first set of tones and the transmission requirements of the first channel.
    Type: Application
    Filed: August 18, 2015
    Publication date: September 28, 2017
    Applicant: British Telecommunications Public Limited Company
    Inventors: Ian HORSLEY, Leslie HUMPHREY
  • Publication number: 20170244446
    Abstract: A method of transmitting data from a transmitter device to a plurality of receiver devices each of which is connected to the transmitter device via a respective wire connection the method comprising transmitting a common signal onto all or both of the respective wire connections and using a multiple access technique to enable respective virtual data channels to be generated for transmitting data from the transmitter device to each of the receiver devices via its own respective virtual data channel.
    Type: Application
    Filed: September 29, 2015
    Publication date: August 24, 2017
    Applicant: British Telecommunications Public Limited Company
    Inventors: Anas AL RAWI, Leslie HUMPHREY, Trevor LINNEY, Ian HORSLEY
  • Patent number: 7564895
    Abstract: Method and apparatus for retrieving the channel frequency response H(f), the noise N(f), measured at initialization and the signal to noise ratio SNR(f) measured at show time on a per bin basis, in the upstream or downstream direction. Initialization H(f) is used for analyzing the physical copper loop condition between tip and ring. Initialization N(f) is used for analyzing the crosstalk. Showtime SNR(f) is used for analyzing time dependent changes in crosstalk levels and line attenuation. The combination of H(f), N(f) and SNR(f) allows analysis of the line conditions for reaching the maximum data rate of a given loop, scheduling maintenance and plant update.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: July 21, 2009
    Assignee: Nortel Networks Limited
    Inventors: Gin Liu, Andrew Dempster, Mike M. J. Wingrove, Gwendolyn Kate Harris, Michel M. Darveau, Leslie Humphrey, Mohammed Reza Pakravan
  • Patent number: 6526058
    Abstract: A Digital Access Systems (DAS) Customer Premises Equipment (CPE) comprising: a DAS modem connected to an internal packet switched network having a switch and arranged such that the internal network is coupled to an external packet switched network by a DAS link over an access network; a network-telephony interface connected to the internal network and coupled to a customer premises telephony appliance; a network-data interface connected to the internal network and coupled to a customer premises data appliance; a controller to control the switch for establishing packet transfer paths between the modem and the interfaces to complete calls between the appliances and entities on the external network; and transferring of control and information signals between the controller and a computing function to adapt the controller to provide alternative packet transfer paths dependent on predetermined conditions in order to provide one or more additional CPE services.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: February 25, 2003
    Assignee: Nortel Networks Limited
    Inventors: Igor K Czajkowski, Leslie Humphrey, Brian Michael Unitt, Michael F Grant