Patents by Inventor Charles Robert Kalmanek, Jr.
Charles Robert Kalmanek, Jr. 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).
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Patent number: 6982951Abstract: A method of selecting a restoration path in a mesh telecommunication network is disclosed that advantageously is practical and flexible and may be pre-computed along with a service connection path during the setup of the connection. The information used to select the restoration path can be advantageously distributed among nodes in the network.Type: GrantFiled: July 19, 2001Date of Patent: January 3, 2006Assignee: AT&T Corp.Inventors: Robert Duncan Doverspike, Charles Robert Kalmanek Jr., Guangzhi Li
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Patent number: 6983040Abstract: A call is forwarded by connecting the call between an originating location and a forwarding location without connecting the call through a terminating location. The originating location is associated with a calling party. The terminating location is associated with a dialed number. The terminating location and the forwarding location is associated with the called party. A bill for the call is apportioned between the calling party and the called party. The bill portion for the calling party is a function of the originating location and the terminating location. The bill portion for the called party is a function of the terminating location and the forwarding location.Type: GrantFiled: February 20, 2003Date of Patent: January 3, 2006Assignee: AT & T Corp.Inventors: Charles Robert Kalmanek Jr., William Todd Marshall, Partho Pratim Mishra, Douglas M Nortz, Kadangode K. Ramakrishnan
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Patent number: 6954456Abstract: The present invention is directed to mechanisms for content-aware redirection and content exchange/content discovery that permit a request for content to be redirected to a particular advantageous server that can serve the content.Type: GrantFiled: December 14, 2001Date of Patent: October 11, 2005Assignee: AT & T Corp.Inventors: Charles D. Cranor, Raman Gopalakrishnan, Matthew D. Green, Charles Robert Kalmanek, Jr., David Hilton Shur, Sandeep Sibal, Jacobus E. van der Merwe
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Patent number: 6915421Abstract: State information for a call between a calling party and a called party is established without maintaining the state information at a gate controller. A setup request for the call is received at an originating gate controller. The originating gate controller is connected to a trusted network. The calling party is associated with an originating interface unit coupled to an untrusted network. The setup request for the call is authorized. The authorized setup request is sent to the called party. State information for the call is formatted based on a setup acknowledgment message received from the calling party. The state information for the call is sent from the originating gate controller to the originating interface unit without maintaining the state information at the originating gate controller.Type: GrantFiled: November 14, 2003Date of Patent: July 5, 2005Assignee: AT&T Corp.Inventors: Charles Robert Kalmanek Jr., William Todd Marshall, Partho Pratim Mishra, Douglas M Nortz, Kadangode K. Ramakrishnan
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Patent number: 6870845Abstract: A call between a first network associated with a calling party and a second network associated with a called party is connected. The source address for packets associated with the call arc translated. The packets are sent from the calling party to the called party without the called party receiving the source address that indicates at least one from the group of a logical identity of the calling party and a geographical identity of the calling party.Type: GrantFiled: August 4, 1999Date of Patent: March 22, 2005Assignee: AT&T Corp.Inventors: Steven Michael Bellovin, Charles Robert Kalmanek, Jr., William Todd Marshall, Partho Pratim Mishra, Douglas M Nortz, Kadangode K. Ramakrishnan
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Patent number: 6823059Abstract: Network resources for a call between a calling party and a called party are allocated. The network resources for the call are reserved based on a reservation request. The network resources are reserved before any one network resource from the reserved network resources is committed. The reserved network resources for the call are committed when a called party indicates acceptance for the call.Type: GrantFiled: June 24, 2002Date of Patent: November 23, 2004Assignee: AT&T Corp.Inventors: Charles Robert Kalmanek, Jr., William Todd Marshall, Partho Pratim Mishra, Douglas M. Nortz, Kadangode K. Ramakrishnan
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Patent number: 6757290Abstract: Gates for a call between a calling party and a called party are coordinated. A timer associated with a first gate opened at an originating network edge device is initiated. A first gate open message is sent from the originating network edge device to the terminating network edge device. The first gate at the originating network edge device is released if the timer expires before at least one from the group of: (1) an acknowledgment based on the sent first gate open message is received from the terminating network edge device, and (2) a second gate open message is received at the originating network edge device from the terminating network edge device after the terminating network edge device has opened a second gate associated with the called party.Type: GrantFiled: August 4, 1999Date of Patent: June 29, 2004Assignee: AT&T Corp.Inventors: Charles Robert Kalmanek, Jr., William Todd Marshall, Partho Pratim Mishra, Douglas M Nortz, Kadangode K. Ramakrishnan
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Patent number: 6753887Abstract: Client software may be used in conjunction with services offered by several entities such as network service providers. A user interface of the client software presents brand indicia relating to the network service provider that is currently being used by the software. The software is configured by selecting entities with which the software will be used. Once the entities are selected, an instruction server is queried to determine the location of branding data to be presented to the user, and a branding data server is queried to retrieve the branding data. The brand indicia are presented to the user according to the branding data each time the corresponding entity is accessed.Type: GrantFiled: March 20, 2001Date of Patent: June 22, 2004Assignee: AT&T Corp.Inventors: Sean E. Carolan, John W. Garrett, Charles Robert Kalmanek, Jr., Han Q. Nguyen, Kadangode K. Ramakrishnan
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Patent number: 6748070Abstract: Network resources for a call between a calling party and a called party are allocated. The network resources for the call are reserved based on a reservation request. The network resources are reserved before any one network resource from the reserved network resources is committed. The reserved network resources for the call are committed when a called party indicates acceptance for the call.Type: GrantFiled: June 24, 2002Date of Patent: June 8, 2004Assignee: AT&T Corp.Inventors: Charles Robert Kalmanek, Jr., William Todd Marshall, Partho Pratim Mishra, Douglas M Nortz, Kadangode K Ramakrishnan
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Patent number: 6711152Abstract: The present invention discloses an efficient architecture for routing in a very large autonomous system where many of the layer 3 routers are attached to a common connection-oriented layer 2 subnetwork, such as an ATM network. In a preferred embodiment of the invention, a permanent topology of routers coupled to the subnetwork is connected by permanent virtual circuits. The routers can further take advantage of both intra-area and inter-area shortcuts through the layer 2 network to improve network performance. The routers pre-calculate shortcuts using information from link state packets broadcast by other routers and store the shortcuts to a given destination in a forwarding table, along with corresponding entries for a next hop along the permanent topology. The present invention allows the network to continue to operate correctly if layer 2 resource limitations preclude the setup of additional shortcuts.Type: GrantFiled: July 6, 1999Date of Patent: March 23, 2004Assignee: AT&T Corp.Inventors: Charles Robert Kalmanek, Jr., Anthony G Lauck, Kadangode K. Ramakrishnan
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Patent number: 6694429Abstract: State information for a call between a calling party and a called party is established without maintaining the state information at a gate controller. A setup request for the call is received at an originating gate controller. The originating gate controller is connected to a trusted network. The calling party is associated with an originating interface unit coupled to an untrusted network. The setup request for the call is authorized. The authorized setup request is sent to the called party. State information for the call is formatted based on a setup acknowledgment message received from the calling party. The state information for the call is sent from the originating gate controller to the originating interface unit without maintaining the state information at the originating gate controller.Type: GrantFiled: August 4, 1999Date of Patent: February 17, 2004Assignee: AT&T Corp.Inventors: Charles Robert Kalmanek, Jr., William Todd Marshall, Partho Pratim Mishra, Douglas M Nortz, Kadangode K. Ramakrishnan
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Patent number: 6665299Abstract: A system and method for providing telephony and high speed data access over a broadband access network, comprising a network interface unit (NIU) coupled to a backup local exchange carrier (LEC) line, the broadband access network coupled to the NIU, an intermediate point-of-presence (IPOP) coupled to the broadband access network, and at least one external access network coupled to the IPOP. The system also provides for a fail-safe mode in which the NIU supports the LEC line for lifeline services.Type: GrantFiled: January 14, 1999Date of Patent: December 16, 2003Assignee: AT&T Corp.Inventors: Steven Michael Bellovin, Joseph Henry Condon, Richard Vandervoort Cox, Alexander Gibson Fraser, Charles Robert Kalmanek, Jr., Alan Edward Kaplan, Thomas Joseph Killian, William Todd Marshall, Peter Z. Onufryk, Kadangode K. Ramakrishnan, Norman Loren Schryer
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Patent number: 6577718Abstract: A call is forwarded by connecting the call between an originating location and a forwarding location without connecting the call through a terminating location. The originating location is associated with a calling party. The terminating location is associated with a dialed number. The terminating location and the forwarding location is associated with the called party. A bill for the call is apportioned between the calling party and the called party. The bill portion for the calling party is a function of the originating location and the terminating location. The bill portion for the called party is a function of the terminating location and the forwarding location.Type: GrantFiled: December 22, 1999Date of Patent: June 10, 2003Assignee: AT&T Corp.Inventors: Charles Robert Kalmanek, Jr., William Todd Marshall, Partho Pratim Mishra, Douglas M Nortz, Kadangode K. Ramakrishnan
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Patent number: 6574335Abstract: A ring back signal for a call between a calling party and a called party can be simulated. A ring back message associated with the call is received. The calling party is associated with a first network. The called party is associated with a second network. A prestored ring back signal is selected from a set of prestored ring back signals based on the ring back message and/or a called number for the call. The selected prestored ring back signal is associated with the second network and is different from a second prestored ring back signal associated with the first network. The prestored ring back signal is sent to the calling party.Type: GrantFiled: December 22, 1999Date of Patent: June 3, 2003Assignee: AT&T Corp.Inventors: Charles Robert Kalmanek, Jr., William Todd Marshall, Partho Pratim Mishra, Douglas M Nortz, Kadangode K. Ramakrishnan
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Patent number: 6498797Abstract: A method for performing communications over a network comprises receiving a user record for a first user, receiving a query from a second user with regard to the first user, and sending, to the second user, as a response to the query, a call-handling profile.Type: GrantFiled: November 12, 1998Date of Patent: December 24, 2002Assignee: AT&T Corp.Inventors: Nikolaos Anerousis, Raman Gopalakrishnan, Charles Robert Kalmanek, Jr., Alan Edward Kaplan, William Todd Marshall, Partho Pratim Mishra, Peter Z Onufryk, Kadangode K. Ramakrishnan, Cormac John Sreenan
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Patent number: 6483912Abstract: Network resources for a call between a calling party and a called party are allocated. The network resources for the call are reserved based on a reservation request. The network resources are reserved before any one network resource from the reserved network resources is committed. The reserved network resources for the call are committed when a called party indicates acceptance for the call.Type: GrantFiled: August 4, 1999Date of Patent: November 19, 2002Assignee: AT&T Corp.Inventors: Charles Robert Kalmanek, Jr., William Todd Marshall, Partho Pratim Mishra, Douglas M Nortz, Kadangode K. Ramakrishnan
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Patent number: 6456410Abstract: A system and method that overcomes the deficiencies of prior optical data communication systems for local area networks by employing a centralized controller in conjunction with a robust protocol and contention scheme. This combination facilitates the transport of data between a number of optical nodes without collision. The invention is particularly suited to transmissions between several mobile optical nodes and one or more stationary network infrared collector/transmitters, allowing communication with the network as the mobile nodes roam from the vicinity of one network infrared collector/transmitter to the next.Type: GrantFiled: December 21, 1994Date of Patent: September 24, 2002Assignee: Lucent Technologies Inc.Inventors: Joseph Henry Condon, Thomas Douglas Selkirk Duff, Milan F. Jukl, Charles Robert Kalmanek, Jr., Bart Nicholas Locanthi, III, Joseph Peter Savicki
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Patent number: 6324279Abstract: Signaling messages are exchanged for a call between a calling party to a called party. A setup message for the call is exchanged through at least one gate controller. Network resources are reserved for the call based on the exchanged setup messages. An end-to-end message for the call is exchanged without the end-to-end message being routed through the at least one gate controller.Type: GrantFiled: August 4, 1999Date of Patent: November 27, 2001Assignee: AT&T Corp.Inventors: Charles Robert Kalmanek, Jr., William Todd Marshall, Partho Pratim Mishra, Douglas M Nortz, Kadangode K. Ramakrishnan
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Patent number: 6098188Abstract: A packet of information is encapsulated into a frame and the frame is segmented into one or more cells for transmission over a communications network. One of the cells contains a sequence-identifier. When a cell is received with a non-consecutive sequence-identifier, it is determined whether or not the entire packet is contained within one cell. If the packet is not contained within one cell, the receiver discards the frame associated with the received cells. If the packet is contained within one cell, the receiver attempts to recover the packet notwithstanding the non-consecutive sequence-identifier.Type: GrantFiled: June 30, 1995Date of Patent: August 1, 2000Assignee: Lucent Technologies Inc.Inventors: Charles Robert Kalmanek, Jr., William Todd Marshall