Richard J Dynarski, 6531 Round Hill Dr, East Freehold, NJ 07728

6466571, Oct 15, 2002

Jan 19, 1999

09/233401

Richard J. Dynarski - Glen Ellyn IL
Matthew Harper - Arlington Heights IL
Yingchun Xu - Buffalo Grove IL
Andrew Bezaitis - Chicago IL

3Com Corporation - Santa Clara CA

H04L 1266

370352, 370389, 455567

A method of finding a mobile wireless communications device when an Internet Protocol (IP) packet from a remote user is sent to the device over an IP network. The mobile device does not have to register with the IP network in order to receive the IP. The method comprises the steps of receiving the IP packet at a home agent associated with a wireless communications network. The IP packet includes an IP address assigned to the device. If there is no current mobility binding record for the mobile device, instead of dropping the packet the home agent sends an access-request packet, containing the IP address, to an authentication server. The authentication server, e. g. , a RADIUS server, maintains a table mapping the IP address for the device to an identification number uniquely associated with the device, such as the devices International Mobile Subscriber Identity number. The authentication server sends an access-accept packet to the home agent in the event that the device is authorized to receive the IP packet, in which case the access-accept packet includes the identification information. The home agent uses the identification number to locate, page and automatically connect the wireless device to the IP network via an InterWorking Unit (IWU) configured as a IP network access server.

6560217, May 6, 2003

Feb 25, 1999

09/248617

Matthew Harper - Arlington Heights IL
Timothy G. Mortsolf - Lisle IL
Yingchun Xu - Buffalo Grove IL
Richard J. Dynarski - Glen Ellyn IL

3Com Corporation - Santa Clara CA

H04L 1228

370351, 370601, 709229

Multiple home agents for a home agent service provider network are implemented in a single computing platform in software as multiple virtual home agents. Each home agent is assigned or dedicated to a single virtual private network. Any number of home agents can be realized in the computing platform by multiple instantiations of a home agent program or code, and by providing unique IP addresses for each instantiation. Each home agent runs independently, and is independently configured and managed by the subscriber of the virtual private network service, freeing the service provider of having to manage and supervise low level processing tasks and customization features that the subscribers may want. In a representative embodiment, the computing platform comprises a router having a general purpose-computing platform.

6628671, Sep 30, 2003

Jan 19, 1999

09/233382

Richard J. Dynarski - Glen Ellyn IL
Matthew Harper - Arlington Heights IL
Andrew Bezaitis - Chicago IL
Yingchun Xu - Buffalo Grove IL

VTStarcom, Inc. - Alameda CA

H04J 322

370469, 370389

A network access server providing remote access to an IP network for a remote client initiates a PPP connection for a remote client quickly, and without requiring re-negotiation of Link Control Protocols and Network Control Protocols. The network access server has a PPP session with the remote client go dormant, for example when the user is a wireless user and goes out of range of a radio tower and associated base station. The network access server does not get rid of the PPP state for the dormant session, but rather switches that PPP state to a new session, such as when the client moves into range of a different radio tower and associated base station and initiates a new active session on the interface to the wireless network. The switching of PPP states may be within a single network access server, or from one network access server to another. This âcontext switchingâ of the active PPP session allows the mobile user to seamlessly move about the wireless network without having to re-negotiate Link Control Protocols and Network Control Protocols every time they move out of range of one radio tower and into range of another radio tower.

6757276, Jun 29, 2004

Nov 24, 1998

09/198827

Matthew Harper - Arlington Heights IL, 60004
Richard J. Dynarski - Glen Ellyn IL, 60137
Timothy G. Mortsolf - Lisle IL, 60532

3Com Corporation - Santa Clara CA

H04L 1264

370356, 370352, 370353, 370466, 341126, 341144, 341155, 341177, 341181, 375254, 375334, 379339

Tones that are generated by a telephone or PC (such as DTMF tones) and subject to loss or noise during generation or during transmission along a medium are detected and replaced with substantially noise-free and distortionless digital signals. In one embodiment, the replacement of the tones is done in a modem embodied in an Internet telephony Gateway/Terminal, such as in a network access server coupling a time division multiplexed telephone line to a packet-switched network. The replacement of the tones may also be performed in any suitable device that provides an interface between a time division multiplexed transmission medium and a packet switched data network, such as in the modems of a cellular telephone network to Internet network access server.

6765900, Jul 20, 2004

Jan 16, 2003

10/346897

Matthew Harper - Arlington Heights IL
Timothy G. Mortsolf - Lisle IL
Yingchun Xu - Buffalo Grove IL
Richard J. Dynarski - Glen Ellyn IL

UTStarcom, Inc. - Alameda CA

H04L 1228

370351, 709229

Multiple home agents for a home agent service provider network are implemented in a single computing platform in software as multiple virtual home agents. Each home agent is assigned or dedicated to a single virtual private network. Any number of home agents can be realized in the computing platform by multiple instantiations of a home agent program or code, and by providing unique IP addresses for each instantiation. Each home agent runs independently, and is independently configured and managed by the subscriber of the virtual private network service, freeing the service provider of having to manage and supervise low level processing tasks and customization features that the subscribers may want. In a representative embodiment, the computing platform comprises a router having a general purpose-computing platform.

6970443, Nov 29, 2005

May 22, 2001

09/863170

Richard J. Dynarski - Glen Ellyn IL, US
Yingchun Xu - Buffalo Grove IL, US
Andrew Bezaitis - Chicago IL, US
Wayne A. Cichosz - Buffalo Grove IL, US

UTStarcom Inc. - Alameda CA

H04Q007/24

370338, 370352, 370356

A method is described of automatically locating and connecting a mobile wireless communications device to a packet-switched network such as the Internet. An Internet Protocol (IP) packet from a terminal on the network, destined for receipt by the mobile device, is received at a home agent acting as a gateway or router linking the packet switched network to a second network, such as LAN, coupled to a wireless communications network. The home agent transmits an access-request message to an authentication server. The access-request message includes a destination IP address associated with the mobile device found in the IP packet. The authentication server responsively issues an access-accept message to the home agent if the mobile device is authorized to receive the IP packet. The access-accept message comprises (a) information uniquely identifying said device, such as the IMSI/ESN number for the device, and (b) information identifying a network to use to locate said device. The home agent issues a message containing the information uniquely identifying the device to a mobile node location server.

7359326, Apr 15, 2008

Feb 5, 2003

10/358872

Matthew Harper - Tewksbury MA, US
Richard J. Dynarski - Freehold NJ, US
Timothy G. Mortsolf - Ludlow MA, US

3Com Corporation - Marlborough MA

H04L 1/00

370235, 37039542, 370444, 370474, 370522

In a Quality of Service system, segments in a TCP session are assigned a priority level. A segment may contain an acknowledgement and data. The system determines if network congestion is detected or anticipated in the segment's priority band or in a higher priority band. When the TCP segment arrives at a network point, the segment is split into an acknowledgement segment and a data segment. The acknowledgement segment is scheduled at a higher QoS priority than the data segment.

7450560, Nov 11, 2008

May 31, 2000

09/584516

David A. Grabelsky - Skokie IL, US
Michael S. Borella - Naperville IL, US
John Poplett - River Forest IL, US
Richard J. Dynarski - Freehold NJ, US

3Com Corporation - Marlborough MA

H04L 12/66

370352, 370389, 37039552, 37039554, 709227

A method to support the assignment of a globally unique network public address and, optionally, a number of locally unique ports to a first private network subdevice having a private network address on a network access system from a second private network subdevice having a public network address using Realm Specific Internet Protocol, wherein the public network address is used by the first private network device to communicate with network devices on an external network.