Cynthia M Jung

US Patent:

7817599, Oct 19, 2010

Filed:

Sep 26, 2005

Appl. No.:

11/235503

Inventors:

Jheroen P. Dorenbosch - Paradise TX, US
Cynthia M. Jung - Menlo Park CA, US

Assignee:

Motorola-Mobility, Inc. - Libertyville IL

International Classification:

H04Q 7/00

US Classification:

370331, 455436, 4554221, 455432, 4554351, 4551321, 455445, 455433, 370349, 370345, 370401, 370352, 370338, 370313, 370351, 370353, 3703102, 3703283, 709238, 709204

Abstract:

A mobile station () provides seamless mobility across multicast domains for communicating with a multicast group () in a telecommunication system () that includes a home domain () and a visited domain (). The mobile station () includes a local source address () and a home address (). The mobile station () also includes a domain detector () for detecting a current domain of the mobile station (), a comparator () for comparing the current domain of the mobile station with a previous domain of the mobile station () to generate a comparison result; and a multicast mode switch () coupled to the comparator () for switching between the local source address () and the home address () to select a source address for communicating with the multicast group () as a function of the comparison result.

US Patent:

8068409, Nov 29, 2011

Filed:

Dec 18, 2007

Appl. No.:

11/958550

Inventors:

Pramod J. Kumaresan - Santa Clara CA, US
Cynthia M. Jung - Menlo Park CA, US

Assignee:

Motorola Solutions, Inc. - Schaumburg IL

International Classification:

G06F 11/00
H04L 12/26

US Classification:

370216, 370221

Abstract:

A fast OSPF inactive router detection technique is provided that detects the failure of a router and switches routing to an alternate router. The alternate router provides a message to the other routers in the Wide Area Network (LAN) that informs of the router failure.

US Patent:

8184618, May 22, 2012

Filed:

Oct 2, 2006

Appl. No.:

11/537795

Inventors:

Joseph T. Sun - Milpitas CA, US
Cathleen N. Carroll - Cupertino CA, US
Renu Chaudhary - Sunnyvale CA, US
Leland Doon - San Francisco CA, US
Cynthia M. Jung - Menlo Park CA, US
John E. Malek - San Jose CA, US

Assignee:

Motorola Solutions, Inc. - Schaumburg IL

International Classification:

H04L 12/66

US Classification:

370352, 370328, 370329, 370330, 370337, 370338, 370356, 370389, 370394, 4554351, 4554352, 709223, 709227, 709228, 709229

Abstract:

A GGSN receives a request associated with a session creation for a mobile entity. The GGSN begins a process (a four-way handshake) for obtaining network access configuration parameters for the mobile entity and responds to the request prior to the completion of the four-way handshake. The GGSN then completes the four-way handshake. A GGSN creates an association between a first IP address and a first mobile entity and thereafter requests an IP address for a second mobile entity. In response thereto, the GGSN receives the first IP address, which the GGSN declines for the second mobile entity and reserves for the first mobile entity. The GGSN requests an IP address for the second mobile entity a second time and receives a second IP address that is different from the first IP address.

US Patent:

8190897, May 29, 2012

Filed:

Dec 13, 2007

Appl. No.:

11/955832

Inventors:

Renu Chaudhary - San Jose CA, US
Cynthia M. Jung - Menlo Park CA, US
Joseph T. Sun - Milpitas CA, US
Pawan Bhatia - San Jose CA, US
Christopher G. Cormier - Campbell CA, US

Assignee:

Motorola Solutions, Inc. - Schaumburg IL

International Classification:

H04L 9/32

US Classification:

713171, 726 15

Abstract:

A first network device implements a method for the secure exchange of data in a network. The network also includes a second network device and a remote device. The method includes establishing an indirect path to the remote device and pre-negotiating first security parameters with the remote device over the indirect path using a network layer protocol, when the second network device has an active first data link. The method further includes establishing an active second data link with the remote device and exchanging first data with the remote device over the active second data link using the first security parameters, when the first data link becomes inactive.

US Patent:

20050164729, Jul 28, 2005

Filed:

Jan 28, 2004

Appl. No.:

10/767127

Inventors:

Vidya Narayanan - Schaumburg IL, US
Cynthia Jung - Menlo Park CA, US
Adam Lewis - Buffalo Grove IL, US

International Classification:

H04Q007/24
H04Q007/20

US Classification:

455522000, 370338000

Abstract:

A method for providing seamless mobility to a first device () in a system () comprising at least the first device, a second device () and a routing infrastructure () is disclosed herein. The routing infrastructure comprises a plurality of routers used to communicate information between the first device and the second device. In operation, the first device receives an anycast address and injects an updated route to the anycast address into the routing infrastructure each time the first device roams to a different subnet. The first device sends a binding update to the second device informing the second device of the anycast address, after which, the first device receives information from the second device via the anycast address regardless of a location of the first device in the system.

US Patent:

20060072532, Apr 6, 2006

Filed:

Sep 30, 2004

Appl. No.:

10/955472

Inventors:

Jheroen Dorenbosch - Paradise TX, US
Andrew Morrison - Euless TX, US
Cynthia Jung - Menlo Park CA, US

International Classification:

H04B 7/216

US Classification:

370342000

Abstract:

A system and method in a radio access network (RAN) () consisting of wireless access points (APs) and (RR, RR, RR, and RR) mobile stations (MSs) () that proactively sets up a multicast distribution tree (). An indication is detected at a destination AP (RR). The indication is that an MS () operating at an initial AP (RR) is a member of a multicast group. The indication is via a device operating in the RAN (). Responsive to detecting the indicating, a multicast distribution tree () is established for the multicast group that includes the destination AP (RR).

US Patent:

20070183422, Aug 9, 2007

Filed:

Feb 6, 2006

Appl. No.:

11/348206

Inventors:

Cynthia Jung - Menlo Park CA, US
Jheroen Dorenbosch - Paradise TX, US

International Classification:

H04L 12/56

US Classification:

370390000

Abstract:

A process () may be implemented subsequent to facilitating (), for a first end user, a transmission of at least one data packet for a first multicast transmission using an infrastructure-supplied source address. This process can generally comprise using () that infrastructure-supplied source address to facilitate transmission of at least one data packet for a second end user for a second multicast transmission.

US Patent:

6765914, Jul 20, 2004

Filed:

Apr 7, 2000

Appl. No.:

09/544806

Inventors:

Vipin Kumar Jain - Santa Clara CA
Cynthia M. Jung - Menlo Park CA

Assignee:

3Com Corporation - Santa Clara CA

International Classification:

H04L 1256

US Classification:

37039531, 370390

Abstract:

The present invention is drawn to an system and a method for configuring subnets within a switch network that is typically comprised of switches and a router coupled together via a common shared bus. In one embodiment, a VLAN-defined (virtual local area network-defined) subnet is configured by mapping a subnet to a VLAN. All subnet members share a single VLAN ID irrespective of device boundaries of the switch network. In particular, in contrast to the span of a conventional subnet, the span of the VLAN-defined subnet is not required to be confined within a single switchs device boundary. As such, the present invention provides flexibility in configuring subnets. Moreover, an intra-VLAN packet forwarding mechanism is provided for said VLAN-defined subnet such that a packet can be transmitted between any two subnet members. This intra-VLAN packet forwarding mechanism avoids routing even when the VLAN-defined subnet spans more than one switch. Advantageously, packet transmission bottleneck found typically in the router is eliminated.