Thomas La

US Patent:

6434134, Aug 13, 2002

Filed:

Dec 11, 1998

Appl. No.:

09/210341

Inventors:

Thomas F. La Porta - Thornwood NY
Ramachandran Ramjee - Matawan NJ

Assignee:

Lucent Technologies, Inc. - Murray Hill NJ

International Classification:

H04J 324

US Classification:

370338, 370475, 709245

Abstract:

The number of packet routing addresses utilized within a wired subnet offering wireless services via subnet base stations is reduced by assigning a packet routing address to a wireless device accessing a wired subnet upon power up of the wireless device. A Dynamic Host Configuration Protocol (DHCP) server is utilized to assign the packet routing addresses, and supplies addresses either directly or indirectly via a node acting as a DHCP relay for a DHCP server. If the assigned packet routing address is a care-of address for a foreign domain, the address is released upon wireless device power down or upon handoff of the wireless device to a new domain. If the assigned packet routing address is an address for the wireless device within a home domain, the address is released upon wireless device power down.

US Patent:

6496505, Dec 17, 2002

Filed:

Dec 11, 1998

Appl. No.:

09/210487

Inventors:

Thomas F. La Porta - Thornwood NY
Ramachandran Ramjee - Matawan NJ
Kannan Varadhan - Woodbridge NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04L 1228

US Classification:

370392, 370313, 370352

Abstract:

A tunneling optimization is described in which packets are forwarded from a home agent to a mobile device by co-locating a foreign agent corresponding to a mobile device at the mobile device. When a mobile device acquires a new foreign agent, the mobile device notifies the home agent as to the corresponding foreign agent address. A packet received at the home agent having the mobile device as a packet header destination address is parsed and the foreign agent address is substituted for the mobile device address, and the packet is forwarded to the foreign agent. The foreign agent, upon receiving the packet, removes the foreign agent address and replaces the mobile device address as the packet header destination address. The packet is then forwarded to the mobile device.

US Patent:

6654359, Nov 25, 2003

Filed:

Dec 11, 1998

Appl. No.:

09/210072

Inventors:

Thomas F. La Porta - Thornwood NY
Kazutaka Murakami - Freehold NJ
Ramachandran Ramjee - Matawan NJ
Sandra R. Thuel - Middletown NJ
Kannan Varadhan - Woodbridge NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04J 1228

US Classification:

370328, 370329, 370331, 370465, 709220

Abstract:

Domains are defined to incorporate a subnet including a plurality of base stations and routers. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a correspondent node. Local mobility between domain base stations is provided by including and updating routing table entries at domain routers and base stations for forwarding packets having a mobile devices address as a destination address to the mobile device. Packets are delivered to the mobile device regardless of the domain base station to which the mobile device is attached. When a mobile device is attached to a base station included within a foreign domain, a care-of address is assigned, and packets are tunneled for delivery of packets to the mobile device. Only one care-of address is required per mobile device per foreign domain. Routing table entries used for packet delivery are updated on a purely local subnet basis within domains, whether home domain or foreign domain, making handoffs between base stations substantially transparent to the home agent and the correspondent node.

US Patent:

6763007, Jul 13, 2004

Filed:

Dec 11, 1998

Appl. No.:

09/209705

Inventors:

Thomas F. La Porta - Thornwood NY
Kazutaka Murakami - Freehold NJ
Ramachandran Ramjee - Matawan NJ
Sandra R. Thuel - Middletown NJ
Kannan Varadhan - Woodbridge NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04Q 700

US Classification:

370331, 370351, 370352

Abstract:

Local mobility within a subnet is supported by classifying wireless base stations, and the routers used to forward packets to those base stations, within defined domains. Domains are defined to incorporate a subnet having a plurality of base stations. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a correspondent node. Packets sent from the correspondent node to the mobile device have a packet destination address corresponding to the mobile device. The mobile device retains this address for the duration of time it is powered up and attached to the Internet via any base station within a given domain. Host-based routing is utilized to update routing table entries corresponding to the mobile device at routers incorporated within a single domain. The routing table entries are established and updated via path setup schemes to convey packets destined for the mobile device along the proper established path through the domain routers and base stations, regardless of the domain base station through which the mobile device is attached.

US Patent:

7239618, Jul 3, 2007

Filed:

Dec 11, 1998

Appl. No.:

09/210213

Inventors:

Thomas F. La Porta - Thornwood NY, US
Kazutaka Murakami - Freehold NJ, US
Ramachandran Ramjee - Matawan NJ, US
Sandra R. Thuel - Middletown NJ, US
Kannan Varadhan - Woodbridge NJ, US

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04Q 7/00

US Classification:

370331, 455436

Abstract:

Local mobility within a subnet is supported by classifying wireless base stations, and the routers used to forward packets to those base stations, within defined domains. Domains are defined to incorporate a subnet having a plurality of base stations. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a correspondent node. Packets sent from the correspondent node to the mobile device have a packet destination address corresponding to the mobile device. The mobile device retains this address for the duration of time it is powered up and attached to the Internet via any base station within a given domain. Host-based routing is utilized to update routing table entries corresponding to the mobile device at routers incorporated within a single domain. The routing table entries are established and updated via path setup schemes to convey packets destined for the mobile device along the proper established path through the domain routers and base stations, regardless of the domain base station through which the mobile device is attached.

US Patent:

60411031, Mar 21, 2000

Filed:

Apr 16, 1996

Appl. No.:

8/632860

Inventors:

Thomas F. La Porta - New York NY
Arun N. Netravali - Westfield NJ

Assignee:

Lucent Technologies, Inc. - Murray Hill NJ

International Classification:

H04M 164
H04M 1100
H04M 342

US Classification:

379 671

Abstract:

A method and apparatus for interactive call identification of a call to a called party. Identifying messages, either text and voice, can be entered on a call-by call basis by the calling party to provide information regarding the call to enable the called party to screen the incoming call. Such identifying messages can include descriptive information about the identity of the caller, the subject matter of the call or any other user-user information. The identifying message is transmitted in the form of a real-time message sent by the caller and received by the party being called in advance of their accepting the call. The identifying message is created on a call-by-call basis by the calling party. The called party receives the identifying message and, after receiving the message, the called party can accept, forward or reject the incoming call based on the information provided in the identifying message. The calling party has the option of using either real-time or pre-recorded message functions.

US Patent:

42688973, May 19, 1981

Filed:

Jul 23, 1979

Appl. No.:

6/059688

Inventors:

Alfred W. Schierwagen - Richmond Hill NY
Thomas D. La Mountain - Syosset NY

Assignee:

Templet Industries, Inc. - Plainview NY

International Classification:

F21V 1702

US Classification:

362325

Abstract:

An easy-to-assemble, self-locking, low brightness louver for a fluorescent lamp lighting fixture is comprised of a plurality of longitudinally-extending light baffles which are aligned at right angles to a corresponding plurality of transversely-extending light baffles. The baffles are assembled and locked with snap-type action in a criss-crossed grid-type lattice arrangement to form a unitary structure.

US Patent:

55639399, Oct 8, 1996

Filed:

Dec 9, 1993

Appl. No.:

8/164521

Inventors:

Thomas F. La Porta - Thornwood NY
Malathi Veeraraghavan - Atlantic Highlands NJ

Assignee:

AT&T - Holmdel NJ

International Classification:

H04M 342

US Classification:

379220

Abstract:

A signaling provider network which receives and transmits at least a subset of all signaling information associated with a particular call or communication service, allows the received/transmitted signaling information to be processed independently of the originating or terminating communication carrier network which originates and/or completes the call, or provides the communication service.