1
Ender Ayanoglu, Kai Yin Eng, Mark John Karol, Pramod Pancha, Clark Woodworth, Malathi Veeraraghavan: Signaling and control architecture for an ad-hoc ATM LAN. Lucent Technologies, October 13, 1998: US05822309 (169 worldwide citation)

The present invention is a signaling and control architecture for establishing a connection between mobile users in a wireless ATM LAN. The ATM LAN includes a plurality of portable base station (PBS) switching nodes coupled together to enable communication between said nodes, wherein the nodes are c ...


2
Mark John Karol, Pramod Pancha: Delay-minimizing system with guaranteed bandwidth delivery for real-time traffic. Lucent Technologies, October 7, 1997: US05675573 (154 worldwide citation)

A bandwidth allocation system allows packets or cells within traffic flows from different sources contending for access to a shared processing fabric to get access to that fabric in an order that is determined primarily on individual guaranteed bandwidth requirements associated with each traffic flo ...


3
Kai Yin Eng, Mark John Karol: Access method for broadband and narrowband networks. Lucent Technologies, May 12, 1998: US05751708 (143 worldwide citation)

An access method allows an end-user device (mobile or stationary) a) to place stand-alone requests for access to a communications network for transmission thereto of one or more information packets arriving at an empty buffer of the end user-device, and b) to piggyback the requests with packet trans ...


4
Kai Yin Eng, Mark John Karol, Malathi Veeraraghavan: Method and apparatus for routing ATM cells in an AD-ATM LAN. Lucent Technologies, May 26, 1998: US05757783 (134 worldwide citation)

A system and method for routing ATM cells in a wireless ATM local area network (LAN) that use portable base station (PBS) switching nodes. Routing of cells to and from mobile users within the network is accomplished utilizing a novel routing scheme which preserves cell sequence. Each user transmitti ...


5
David Lee, S Jamaloddin Golestani, Mark John Karol: Prevention of deadlocks and livelocks in lossless, backpressured packet networks. Lucent Technologies, February 22, 2005: US06859435 (113 worldwide citation)

A packet communication network is arranged so that a backpressure or feedback signal is sent from a receiving node to a node having packets to send to the receiving,node, selectively allowing only certain packets to be considered eligible for transmission. The backpressure is arranged to be lossless ...


6
Ender Ayanoglu, Kai Yin Eng, Mark John Karol, Pramod Pancha: Wireless internet access system. Lucent Technologies, May 2, 2000: US06058422 (88 worldwide citation)

A facility is provided for establishing a relatively low-speed path from a user desiring to access the well-known Internet and establishing a high-speed path from the Internet to the user so that the data speed accommodates both the user's requests and a response from an Internet web/host site. More ...


7
Mark John Karol, Malathi Veeraraghavan: Technique for internetworking traffic on connectionless and connection-oriented networks. Lucent Technologies, Matthew J Hodulik, Barry H Freedman, September 30, 2003: US06628617 (64 worldwide citation)

Traffic on a connectionless (CL) network, such as IP packets, can be routed onto a connection a connection oriented (CO) network, such as an ATM telephony network, when it is advantageous to do so from a user or service provider viewpoint, without affecting the ability of users to continue to use ex ...


8
Mark John Karol, Sanjoy Paul, Clark Woodworth: Real-time processing for virtual circuits in packet switching. Lucent Technologies, September 19, 2000: US06122275 (14 worldwide citation)

Real-time hardware primitives are added to packet switches to provide efficient support for inward multicasting. The lookup table used for routing is extended by adding additional opcode and operand fields into the routing table and by including ALU circuitry to process these fields and correspondin ...


9
Ender Ayanoglu, Kai Yin Eng, Mark John Karol: Method and apparatus for transmitting packetized data over a common communications channel. Lucent Technologies, January 11, 2000: US06014385 (10 worldwide citation)

A telecommunications system capable of transmitting an N byte packet over a common communications channel by: temporally dividing the common communications channel into time slots that have a duration equal to ##EQU1## seconds, where i is a natural number greater than one, C is a constant and R is t ...


10
Mark John Karol, Parameshwaran Krishnan, Juan Jenny Li: Rapid fault detection and recovery for internet protocol telephony. Avaya, Joseph B Ryan, Jason Paul DeMont, Wayne S Breyer, August 24, 2010: US07782787 (3 worldwide citation)

Techniques for performing rapid fault detection and recovery in communication networks are disclosed. For example, in one aspect of the invention, a technique for detecting one or more conditions in a communication network comprises the following steps/operations. One or more keep-alive packets are ...