| Patent Number |
Title Of Patent |
Date Issued |
| 7002932 |
Method and system for providing network connectivity and mobility while roaming |
February 21, 2006 |
| A method and system for providing network connectivity and mobility for a roaming client. Specifically, in one embodiment of the present invention, an access point (AP) is enabled with a smart agent and associated protocol. The smart agent is capable of monitoring the AP link status to |
| 6999453 |
Distributed switch fabric arbitration |
February 14, 2006 |
| The scalability and throughput for high-capacity communication switches is improved by providing a distributed arbitration algorithm which addresses the arbitration inefficiency of prior art systems. Distributed arbitration logic units in each satellite unit in a communication switch |
| 6999452 |
Ethernet units adapted for loop configuration and method of operating same |
February 14, 2006 |
| A packet-switched network system comprises a multiplicity of multi-port network units each of which has first and second ports and other ports and transmission links coupling the first and second ports of said unit in a closed ring. The first and second ports and transmission links s |
| 6996621 |
Method for supporting secondary address delivery on remote access servers |
February 7, 2006 |
| The present invention provides a method to support the delivery of the IP address of a secondary address server to a dial-up remote access client. The secondary address server may be an RSIP server, with which the client may perform an RSIP negotiation resulting in the client being assig |
| 6996110 |
Distributed MPLS architecture |
February 7, 2006 |
| A system and method for processing packets of information includes an ingress module. The ingress module receives a plurality of packets of information from a first network. The ingress module determines the type of each of the plurality of packets. A route server module is coupled to |
| 6996062 |
Policy-based weighted random early detection method for avoiding congestion in internet traffic |
February 7, 2006 |
| A method and apparatus for avoiding network congestion. An exemplary packet forwarding device may apply policy rules to incoming packets to assign relative drop probabilities to the packets based on the priority of the packets. In times of network congestion, packets may be selective |
| 6992974 |
System and method for providing fault tolerance in a network telephony system |
January 31, 2006 |
| A system and method for providing fault tolerance in a network telephony system. Signaling messages according to a signaling protocol, such as the SIP protocol, are modified to include a path attribute with a network address corresponding to a backup proxy server. When a primary proxy |
| 6990535 |
Device and method for multi-ported, single bus-mastering data buffer management |
January 24, 2006 |
| An architecture, method, and apparatus for managing a data buffer (Data Buffer Management DBM). A data buffer within the DBM is an unified linear memory space, and is divided into numbered physical pages with a predetermined page size. A memory map translates logical address spaces f |
| 6990116 |
Method and system for improving throughput over wireless local area networks with mode switching |
January 24, 2006 |
| A method and system for increasing the overall network throughput over a wireless local area network (WLAN). Specifically, in one embodiment of the present invention, the dynamic switching between the Distributed Coordination Function (DCF) and Point Coordination Function IEEE 802.11 |
| 6989735 |
Power transfer apparatus for concurrently transmitting data and power over data wires |
January 24, 2006 |
| Power supply current, sufficient to power a remote network device, is transmitted concurrently with a network data signal over a transmission line. A power-sourcing network device that can include a coupling circuit provides power and data to the remote network device. The coupling c |
| 6986157 |
Method and system for dynamic service registration in a data-over-cable system |
January 10, 2006 |
| A method and system for dynamic service registration, activation and deactivation on a data-over-cable system. A first network device, such as a cable modem with associated service devices (e.g., Voice over Internet Protocol telephones) sends a first message to another network device, |
| 6985437 |
Method for dynamic performance optimization in a data-over-cable system |
January 10, 2006 |
| A method and system for optimizing performance in a data-over-cable system. The method includes determining parameters for data transmission on an upstream channel of the data-over-cable system, and negotiating use of the parameters. A measurement is made of a signal-to-noise ratio ( |
| 6982962 |
System and method for selecting a network access provider using a portable information device |
January 3, 2006 |
| A system and method for selecting a network access provider using a portable information device (PID) includes considering the user's pre-stated preferences. The pre-stated preferences may include, but are not limited to, reliability, security, signal strength, cost or appropriatenes |
| 6978302 |
Network management apparatus and method for identifying causal events on a network |
December 20, 2005 |
| A network management apparatus and method for identifying an event which is indicative of the underlying cause of more than one of a plurality of events detected by a network management station on a network is described in which the management station has knowledge of the topology of the |
| 6977821 |
Backplane apparatus and board for use therewith |
December 20, 2005 |
| A backplane has a plurality of interface slots that each couple to a number of buses. Depending upon the embodiment, these buses include a power distribution bus, a digital ground bus, an earth ground bus, a system timing bus, a time division multiplexed bus, a system control bus, a |
| 6975652 |
Clock synchronization of HFC telephone equipment |
December 13, 2005 |
| A method and system for synchronizing two clocks of a first and second device. Successive synchronization messages are sent from the first device to the second device. Each synchronization message has a timestamp. Each message is received at the second device and the period between succe |
| 6973513 |
Method for efficient use of a transmit engine |
December 6, 2005 |
| A method for providing efficient use of a transmit engine in transmitting packet directing information. In one embodiment, two linked lists are used to submit packets and packet directing information to a transmit engine. When there is no packet to send, both lists are marked as free. Wh |
| 6973077 |
Method and apparatus for auto-detection of LAN, Modem, or ISDN utilizing a common connection to |
December 6, 2005 |
| A method and apparatus for allowing multiple types of connections to be made to a peripheral component. In one embodiment, the present invention provides a peripheral component with a receptacle having a number of electrical connecting lines. At least one of the electrical lines is used |
| 6970940 |
System and method for distributing a single multicast multi-program audio stream over a network |
November 29, 2005 |
| A system and method for distributing multi-program audio over a network includes the use of a Local Area Network, Wide Area Network, an Intranet and the Internet. The system includes a network audio source, a network distribution system and end devices. The method, for distributing m |
| 6970921 |
Network interface supporting virtual paths for quality of service |
November 29, 2005 |
| A plurality of virtual paths in a network interface between a host port and a network port are managed according to respective priorities. Thus, multiple levels of quality of service are supported through a single physical network port. Variant processes are applied for handling packets |
| 6967963 |
Telecommunication method for ensuring on-time delivery of packets containing time-sensitive data |
November 22, 2005 |
| A telecommunication method for providing packets to at least one of a first and a second network are described. A telephone set connects the first network to the second network. The telephone set forwards packets received from one network to the other network, generates packets from sign |
| 6966003 |
System and method for switching security associations |
November 15, 2005 |
| A system and method for switching security associations between network devices. The system and method includes a first, a second, and a third network device, with a first secure communication being established between the first and second network devices, and a second secure communi |
| 6965992 |
Method and system for network security capable of doing stronger encryption with authorized devi |
November 15, 2005 |
| A method and system for network security includes a first network device having a first set of key material with a base key and a key extension, and a second network device also having the first set of key material and a second set of key material with a second base key. The second netwo |
| 6965942 |
Method and system for improving throughput over wireless local area networks with a dynamic cont |
November 15, 2005 |
| A method and system for increasing the overall network throughput over a wireless local area network (WLAN). Specifically, in one embodiment of the present invention, the dynamic selection of an initial value for a contention window in the Distributed Coordinated Function (DCF) mode is |
| 6965932 |
Method and architecture for a dynamically extensible web-based management solution |
November 15, 2005 |
| A framework for extending a network management platform, including an object manager that retrieves an entire class hierarchy including any code or other functionality needed to retrieve data about a server or other network device (e.g., code needed to retrieve actual instances of an |
| 6965577 |
Identifying an edge switch and port to which a network user is attached |
November 15, 2005 |
| An edge switch of a packet-based communication network, the edge switch having a port to which a specified user is connected is identified. A unicast request packet is sent from a policy server to the specified user, the unicast request packet including destination address data and a |
| 6965565 |
System and method for communicating an event status across a data channel |
November 15, 2005 |
| A system for communicating an event status across a data channel is provided. The system includes a data path to provide connectivity for a plurality of communication channels using data transport protocols. An originating device is coupled to a first location on the data path, and is |
| 6963921 |
Method and apparatus for hardware assisted TCP packet re-assembly |
November 8, 2005 |
| A hardware packet accelerator parses incoming packets to retrieve header data for building a frame status and for verifying the incoming packets are part of an established connection with a host. The accelerator includes a connection database that allows retrieval of connection infor |
| 6963829 |
Method and apparatus for interfacing a spectrum digital incorporated TMS470 evaluation board wit |
November 8, 2005 |
| A bridge board connects a TMS470 processor evaluation module and a TMS320C54XX processor evaluation module. The bridge board performs translation of signal formats on both of the boards and also synchronizes the signal formats on both boards so that both boards are able to operate to |
| 6963541 |
Upstream transmission profiles for a DOCSIS or DOCSIS-like system |
November 8, 2005 |
| A message structure is provided for assigning transmission profiles to individual modems for modem transmissions in an upstream direction, on a modem by modem basis. The profiles define a set of transmission parameters, e.g., forward error correction information, symbol rate, frequen |
| 6961596 |
Modular RF antenna and filter system for dual radio WLAN access points |
November 1, 2005 |
| The present invention relates to low-cost improvement of performance of multiple radio wireless access points. It relates to combinations of an antenna and one or more of a filter or an active components such as a power amplifier, low noise amplifier, switching diode or RF phase shifter |
| 6959082 |
Method and system for automatic gain control with adaptive table lookup |
October 25, 2005 |
| A method and system for automatic gain control is provided. The automatic gain control may be used, for example, with a microphone and voice codec of a speakerphone telephone. In an exemplary embodiment, an amplification gain lookup table stores the gain values. The power of the input si |
| 6956853 |
Receive processing with network protocol bypass |
October 18, 2005 |
| An adapter is provided with intelligence that allows it to separate the header parts of a packet being received from the payload it carries, and in most cases move the payload directly into a destination buffer at the application layer or file system layer. Copies by the intermediate lay |
| 6954786 |
Method and architecture for a high performance cache for distributed, web-based management solut |
October 11, 2005 |
| An architecture for a management information system includes a backend that services information requests from a front end. The backend retrieves data from management information base(s) (MIBs) and prepares a response to the information requests. The backend maintains a cache of data rec |
| 6954785 |
System for identifying servers on network by determining devices that have the highest total vol |
October 11, 2005 |
| A method and apparatus for identifying a device acting as a server on a network is disclosed which uses network data representing communications on the network. The network data contains source device, destination device, data transfer protocol and data volume information for each co |
| 6954492 |
Method of differential encoding a precoded multiple modulus encoder |
October 11, 2005 |
| A differential encoder is designed to correct for any phase invariance. Without differential encoding defined for the V.92 upstream, undetectable errors are possible in a modem due to an inversion in the upstream channel. Immunity to channel inversions is provided by differentially e |
| 6954438 |
Wireless callback access control for a LAN network access point |
October 11, 2005 |
| A master-slave switch method for reversing roles between nodes in a network environment when the traditional role reversal functionality as defined by the network specification is not implemented within the node is presented. A data terminal which does not support the traditional master- |
| 6952428 |
System and method for a specialized dynamic host configuration protocol proxy in a data-over-cab |
October 4, 2005 |
| A system and method for proxying Dynamic Host Configuration Protocol ("DHCP") network services for a network device, such as, a customer premise equipment entity, on a network device, such as, a cable modem, include creating a specialized proxy task for the customer premise equipment |
| 6950862 |
System and method for offloading a computational service on a point-to-point communication link |
September 27, 2005 |
| A system and method are shown for offloading a computational service on a point-to-point connection. When a tunnel initiator network device, such as a Level 2 Tunneling Protocol Access Concentrator (LAC), detects a tunnel client network device, the LAC sets up a tunnel connection with a |
| 6948184 |
System and method for calibrating power level during initial ranging of a network client device |
September 20, 2005 |
| A system and method for calibrating power level during initial ranging of a network client device, such as cable modem facilitates communications between a network client device and a network device such as a cable modem termination system. The method includes dividing the dynamic range |
| 6948074 |
Method and system for distributed generation of unique random numbers for digital tokens |
September 20, 2005 |
| A method and system for distributed generation of unique random numbers. The unique random number can be used to create digital cookies or digital tokens. A first network device (e.g., a computer) on a computer network receives an x-bit bit mask template from a second network device on t |
| 6947418 |
Logical multicast packet handling |
September 20, 2005 |
| A switching system connectable to a communications network and configured to handle logical multicast data without degrading the flow of other data through the system. The switching system includes a plurality of input ports, a plurality of output ports, and a plurality of queues for |
| 6945461 |
Compact multifunction card for electronic devices |
September 20, 2005 |
| An apparatus and method for enhancement of the functionality of electronic devices. In one embodiment, the present invention is comprised of an intermediary apparatus. The intermediary apparatus is adapted to be communicatively coupled with an electronic device. In the present embodi |
| 6944881 |
Method for using an initial maintenance opportunity for non-contention ranging |
September 13, 2005 |
| A method of preventing collisions when a cable modem re-registers with a cable modem termination system on a cable television network following failure of a primary communications channel between the cable modem and the cable modem termination system. The method provides a service id |
| 6940874 |
Method for reducing interference from initializing network devices in a data-over-cable system |
September 6, 2005 |
| Methods for reducing interference from initializing network devices in a data-over-cable system. The method includes aligning Initial Maintenance intervals for multiple upstream channels of the data-over-cable system. A cable modem termination system determines if usage intervals for the |
| 6940836 |
Method and apparatus for indicating quality of service to a radio access network |
September 6, 2005 |
| Level of service information for a given user of a radio access network (10) is determined at a Packet Data Serving Node (18) and provided to the radio access network for use in determining a particular level of service to provide to the given user. The level of service can comprise an |
| 6940818 |
Selectable bandwidth facility for a network port |
September 6, 2005 |
| Traffic through a port of a network switch is monitored and controlled by a token bucket system having a duplex mode in which the bandwidths available for incoming and outgoing packets are controlled by a single token bucket and a half-duplex mode in which the bandwidths for incoming and |
| 6938079 |
System and method for automatically configuring a client device |
August 30, 2005 |
| A user of a client device selects a service provider from a plurality of available service providers. The client device then queries the user for the user's information and formats the user's information into a predetermined data structure and format. The client device connects to the |
| 6937699 |
System and method for advertising using data network telephone connections |
August 30, 2005 |
| A system and method for providing advertising and advertising services using a telephone system. A data network telephony system includes a commercial message server that communicates with a telephony connection server to communicate commercial messages to display devices on data net |
| 6937624 |
System for manintaining inter-packet gaps in cascade transmission system for packet-based data |
August 30, 2005 |
| A unit for receiving and re-transmitting data signals comprising multi-byte packets separated by multi-byte inter-packet gaps includes a FIFO store, a first, write, state machine for controlling the writing of packets into the FIFO and a second, read, state machine for controlling read-o |
