Keith M Allen

US Patent:

6907047, Jun 14, 2005

Filed:

Jul 18, 2001

Appl. No.:

09/906741

Inventors:

Weijing Chen - Austin TX, US
Keith Joseph Allen - Austin TX, US

Assignee:

SBC Technology Resources, Inc. - Austin TX

International Classification:

H04L012/28
H04J003/16

US Classification:

370467, 370401, 370400

Abstract:

Method and apparatus to establish a communication link over a high speed communications network. A unique E. 164 predetermined address assigned to a switching and access node of each network node of the high speed communications network is examined. In addition, a service address associated with a request to establish a communication link is examined. The service address indicates at least one of a type of service being requested, a network service detail, and a name of a desired service provider. Thereafter, an end-to-end communication link is established between the calling party and a destination party by routing a connection request through plural switching nodes in accordance with the calling party E. 164 address, an E. 164 address associated with the destination party, and the service address.

US Patent:

7065092, Jun 20, 2006

Filed:

Jul 31, 2002

Appl. No.:

10/207880

Inventors:

Weijing Chen - Austin TX, US
Keith Joseph Allen - Austin TX, US

Assignee:

SBC Properties, L.P. - Reno NV

International Classification:

H04L 12/28
H04L 12/56

US Classification:

37039552, 3703955, 37039521, 370352, 370401

Abstract:

A system and method establish an Internet protocol (IP) connection between an originating end-system and a limited access destination end-system through a switched transport network. An originating interworking function (IWF) device inserts its switched transport network address into a data field of an RSVP path message, which is forwarded through routers in an IP network by default routing, without modifying the data field. A destination IWF device retrieves the switched transport network address from the path message, which is forwarded to the destination end-system. The destination IWF device receives a new IP address assigned to the originating end-system by the destination end-system. The destination IWF device forwards a setup message to the originating IWF device, through switches in the switched transport network, based on the switched transport network address from the path message and the newly assigned IP address. The IP connection is established in response to the setup message.

US Patent:

7136386, Nov 14, 2006

Filed:

Jul 19, 2001

Appl. No.:

09/907606

Inventors:

Keith Joseph Allen - Austin TX, US
Weijing Chen - Austin TX, US
Anna Salguero - Austin TX, US

Assignee:

SBC Technology Resources, Inc. - Austin TX

International Classification:

H04L 12/28

US Classification:

3703955, 37039552, 370401

Abstract:

A communications network and method enable broadband service subscribers to dynamically select broadband service destinations they wish to access from subscriber customer premises equipment. The communications network is an ATM network including a plurality of ATM switches. The network also includes at least one directory server connected to the ATM network, at least one fiber terminating device connected to the at least one directory server, and at least one broadband destination connected to the ATM network. Furthermore, the subscribers' customer premise equipment is connected to the at least one fiber terminating device. The method includes receiving a session request, which identifies a destination, in the at least one service gateway, wherein the session request is transmitted over a broadband connection using an Internet protocol. Next, using the at least one service gateway, an ATM network address of the destination from the at least one directory server is retrieved. Then an SVC is launched over the ATM network from the at least one service gateway to connect the subscriber to the ATM network address.

US Patent:

7272145, Sep 18, 2007

Filed:

Jul 31, 2002

Appl. No.:

10/207906

Inventors:

Weijing Chen - Austin TX, US
Paul F. Van Vleck - Austin TX, US
Keith Joseph Allen - Austin TX, US

Assignee:

AT&T Knowledge Ventures, L.P. - Reno NV

International Classification:

H04L 12/28
H04L 12/56
H04L 12/66
G06F 15/16

US Classification:

3703955, 37039552, 370401, 370410, 709203, 709249

Abstract:

A system and method establish an Internet protocol (IP) connection between an originating end-system and a destination end-system, incapable of resource reservation protocol (RSVP) signaling, through a switched transport network. A first interworking function (IWF) device inserts its switched transport network address into a first data field of an RSVP path message, received from an RSVP capable proxy signaling device that interfaces with the destination end-system. The first IWF device forwards the path message, through routers in an IP network, which is passed without modification to the first data field. A second IWF device receives the path message and forwards a setup message to the first IWF device through switching devices in the switched transport network, based on the first IWF device's address retrieved from the first data field of the path message. The IP connection is established through the proxy signaling device in response to the setup message.

US Patent:

7298750, Nov 20, 2007

Filed:

Jul 31, 2002

Appl. No.:

10/207905

Inventors:

Weijing Chen - Austin TX, US
Keith Joseph Allen - Austin TX, US

Assignee:

AT&T Knowledge Ventures, L.P. - Reno NV

International Classification:

H04L 12/28

US Classification:

370401, 37039521, 3703955, 370466, 370469, 370471

Abstract:

A method and system provide an Internet protocol (IP) session between an originating end-system and a destination end-system through a switched virtual circuit (SVC) short-cut across an asynchronous transfer mode (ATM) network. A first interworking function (IWF) device inserts its ATM address into a transport network hop (THOP) extension object of a resource reservation protocol (RSVP) path message, which may also contain quality of service (QoS) and reverse charging extension objects. IP routers forward the path message through an IP network, without modifying the objects, to a second IWF device, which retrieves the ATM address of the first IWF device. The second IWF device initiates an ATM setup message, including a responsive RSVP reservation request message. The setup message is sent through the ATM network to the first IWF device, which establishes the SVC with the second IWF device, according to the QoS parameter.

US Patent:

7301951, Nov 27, 2007

Filed:

Jul 31, 2002

Appl. No.:

10/207886

Inventors:

Weijing Chen - Austin TX, US
Keith Joseph Allen - Austin TX, US

Assignee:

AT&T Knowledge Ventures, L.P. - Reno NV

International Classification:

H04L 12/28
H04L 12/56

US Classification:

37039552, 3703955, 37039521, 370352, 370401

Abstract:

A method and system for establishing a guaranteed quality of service (QoS) Internet protocol (IP) connection between an first bridging device and a second bridging device through a switched transport network. The second bridging device receives a first signaling message from the first bridging device through an IP network, the first signaling message containing at least one parameter defining a predefined quality of service. In response, the second bridging device associates the first bridging device's switched transport network address and IP address, without communicating with an address server. The second bridging device directs a second signaling message to the switched transport network of address of the first bridging device, which establishes the IP connection between the first bridging device and the second bridging device through the switched transport network. The IP connection is in accordance with the at least one quality of service parameter contained in the second signaling message.

US Patent:

7447203, Nov 4, 2008

Filed:

Jul 29, 2003

Appl. No.:

10/628238

Inventors:

Weijing Chen - Austin TX, US
Keith Joseph Allen - Austin TX, US

Assignee:

AT&T Intellectual Property I, L.P. - Reno NV

International Classification:

H04L 12/56

US Classification:

370389, 370390, 370432

Abstract:

Broadband access is provided to a virtual private network (VPN), including multiple local area networks (LANs) configured to interface with an IPv6 service provider network. Data to be routed from an originating device in an originating LAN to a destination device in a destination LAN is received by an ingress line interface and encapsulated in an IPv6 packet. A unique identification number assigned to the VPN is added to the IPv6 packet. When the destination device's address is not mapped to a corresponding egress line interface, the IPv6 packet is broadcast to a multicast address associated with the VPN. When the destination device's address is mapped to the egress line interface, the IPv6 packet is unicast to the egress line interface. The data is ultimately received and decapsulated by the egress line interface. After the VPN identification number is verified, the data is transmitted to the destination device.

US Patent:

7577238, Aug 18, 2009

Filed:

Mar 31, 2005

Appl. No.:

11/095940

Inventors:

David Benjamin Small - Dublin CA, US
Steven M. Wollmershauser - San Antonio TX, US
Yolius Diroo - San Antonio TX, US
Keith Joseph Allen - Austin TX, US

Assignee:

AT&T Intellectual Property I, L.P. - Reno NV

International Classification:

H04M 1/24
H04M 3/08
H04M 3/22

US Classification:

379 21, 379 24, 455 6711, 455 677, 4551154

Abstract:

A simplified field testing tool integrates signal-strength and error-rate testing for a variety of networking technologies prevalent for home networking, including but not limited to Multimedia over Coax (or applicable coax standard), HomePNA 2, VDSL, 100BaseT Ethernet, 802. 11 Wi-Fi, and analog/coaxial RF signals.