| Patent Number |
Title Of Patent |
Date Issued |
| 7298834 |
System and method for large capacity conference calls |
November 20, 2007 |
| A system and method for teleconferencing using multiple media mixers is provided. In an exemplary embodiment, a conferencing system may include a conference control server in communication with a central media mixer (CMM) and one or more edge media mixers (EMM). The conference control |
| 7289496 |
Cascade system for network units |
October 30, 2007 |
| Network units such as switches for use in a cascaded stack are organised to provide a cascade connection in the form of a dual unidirectional connection so that, in its ordinary configuration, there is at least one and preferably more than one unidirectional ring for each direction a |
| 7289449 |
Device and method for managing fault detection and fault isolation in voice and data networks |
October 30, 2007 |
| The present invention provides a device and method for managing fault detection and isolation in voice and data networks. Specifically, the present invention is a device and method for fault detection and fault isolation that can be used to validate connectivity of a central site to |
| 7286652 |
Four channel audio recording in a packet based network |
October 23, 2007 |
| An apparatus for and a method of audio recording in packet based telephony systems. Using the present invention, the equivalent of four audio channels are recorded utilizing only two recording channels. Each channel recorded comprises the stream of packets generated and transmitted by |
| 7283555 |
Method and apparatus for determining a polling interval in a network management system |
October 16, 2007 |
| A method and apparatus for determining a time interval for periodically polling a device on a network 1 is described. The method determines the most restrictive link on the path to the network device, the level of restrictiveness of a link being dependent on the nature of the link, such |
| 7283543 |
System and method for operating echo cancellers with networks having insufficient levels of echo |
October 16, 2007 |
| A system and method for providing an apparent echo return loss is provided. A communications network may include a gateway coupled to a local exchange network. The gateway may receive signals from a packet network and output signals to a circuit switched network, which may output ret |
| 7283525 |
Multi-port network communication device with selective MAC address filtering |
October 16, 2007 |
| A multi-port network communication device includes a plurality of ports for the reception and transmission of addressed data packets which include media access control address data, a forwarding mechanism for directing packets received at any of said plurality of ports to at least on |
| 7280621 |
Preamble detector method and device for OFDM systems |
October 9, 2007 |
| The present invention relates to the field of data communication electronics and to a wired or wireless signal transmitter or receiver and methods providing improved signal-to-noise ratio (SNR) performance for the reception of data packets transmitted in the form of symbols modulated |
| 7280554 |
Computer implemented method for assigning a back-off interval to an intermediary network access |
October 9, 2007 |
| In one embodiment, the present invention is a computer implemented method for assigning a back-off interval to an intermediary network access device in a Carrier Sense Multiple Access (CSMA) network. The number of client devices concurrently attempting to access said network via said |
| 7277517 |
Method for achieving symbol alignment to a pre-existing ADSL data exchange |
October 2, 2007 |
| A method for determining symbol boundaries in an ADSL modem, comprising receiving multi-frequency modulated signals in the time domain, wherein the multi-frequency modulated signals include a pilot signal at a pilot frequency. Performing a time-to-frequency transform on the multi-fre |
| 7275113 |
Dynamic network address configuration system and method |
September 25, 2007 |
| A dynamic network address registration system and method. In one embodiment, the present invention is comprised of a first device which is adapted to communicate over a communications network. The present invention is a also comprised of a second device which is adapted to communicat |
| 7275093 |
Methods and device for managing message size transmitted over a network |
September 25, 2007 |
| Methods and a device for changing the message size broadcast over a network and furthermore preventing fragmentation in networks are provided. The device intercepts a message transported across a network, wherein the message is sent from a data source to a data receiver and changes t |
| 7274750 |
Gain and phase imbalance compensation for OFDM systems |
September 25, 2007 |
| The present invention includes methods and devices to compensate for gain and phase imbalance for OFDM and other multi-carrier symbol transmission systems. More particularly, methods and devices for determining compensation parameters are provided. This invention may be applied to a |
| 7274703 |
Stackable network units with resiliency facility |
September 25, 2007 |
| A network unit comprises a multiplicity of ports for transmitting and receiving data packets, a bridging facility and a routing facility. The network unit has a multiplicity of mutually exclusive states which includes an initial state from which said network unit can transition to ei |
| 7263130 |
Method and apparatus for evaluating error control parameters of self-similar constellations |
August 28, 2007 |
| A method and apparatus implementing the method, of selecting a bit load b for a channel in a carrier system. The carrier system encodes data based on a constellation of points. Each point represents a tuple of data. The constellation has a self-similarity property. The bit load for the |
| 7257739 |
Diagnosis of link failures in a network |
August 14, 2007 |
| A method of diagnosing, in a network comprising two devices (A), (B) connectable by a link (20), which link may be a physical link such as a cable or may be a wireless link, the type of failure of the connection between the devices (referred to as "link failure", although the failure |
| 7257088 |
SDMA system using MU-SIMO for the uplink and MU-MISO for the downlink |
August 14, 2007 |
| The present invention relates to multiple antenna wireless access points that multiplex signals by spatial division. In particular, it relates to grouping clients of the access point for spatial division multiplexing. Particular aspects of the present invention are described in the claim |
| 7249183 |
Method to enable continuous mobility across wired and wireless network interfaces |
July 24, 2007 |
| A method for switching between an individual computer's network interface technologies without interrupting any pending data transmissions on the existing network connection. The method include detecting when an existing network connection is no longer connected and if there are any |
| 7248573 |
Interface system for wireless node and network node |
July 24, 2007 |
| An interface between a wireless node and a network node includes an encapsulator for temporarily converting data frames into Ethernet frames for the link between the two nodes and de-encapsulating the Ethernet frames before the data is processed at the network node. |
| 7243354 |
System and method for efficiently processing information in a multithread environment |
July 10, 2007 |
| A buffer ring is utilized to track and control the distribution of information. Index variables that refer to storage locations or slots in the buffer ring are utilized to track the receipt and distribution of information. The variables initially point to the same slot. As informatio |
| 7239639 |
System and method for dynamically constructing packet classification rules |
July 3, 2007 |
| A system and method classifies packets with a programmably fixed network processor program and dynamically updated data structures. The network processor program selects predetermined packet field values of the packets transmitted across the network and classifies the packets by matc |
| 7233601 |
Cascade architecture and operation for packet-based communication systems |
June 19, 2007 |
| A connecting unit for use in a system comprising a `stack` of network communication units having a cascade connection has three ports having lines for forwarding and receiving data packets and for forwarding and receiving control messages. The connecting unit increments a first signal |
| 7225236 |
Load balancing between LNSs using virtual LNS with minimal LAC configuration |
May 29, 2007 |
| A system for load balancing, the system includes a LAC, a contact LNS, and a plurality of load balancing LNSs. The LAC includes a contact LNS address, the contact LNS address specifies the address of a contact LNS. The contact LNS is communicatively coupled to the LAC and the plurality |
| 7222255 |
System and method for network performance testing |
May 22, 2007 |
| A system and method for network performance testing are developed. One system includes a control network device configured to send network test performance settings configure at least one data generator and network switches so that each data generator sends test data via a plurality of |
| 7203245 |
Symbol boundary detector method and device for OFDM systems |
April 10, 2007 |
| The present invention relates to the field of data communication electronics and to a wired or wireless signal transmitter or receiver and methods providing improved signal-to-noise ratio (SNR) performance for the reception of data packets transmitted in the form of symbols modulated |
| 7194534 |
Display of phones on a map of a network |
March 20, 2007 |
| In a computer network, a process of discovery of the network, including discovery of network phones, and means for retrieving an icon relating to the phones and displaying a network map including network phones in the network map. |
| 7194251 |
Intelligent gate distributed use and device network access management on personal area network |
March 20, 2007 |
| The present invention relates to a method for managing access to a wireless personal area network in an intelligent concentrator. The method manages wireless access to a network by providing wireless communication in the network, providing firewall protection between the network and a |
| 7194004 |
Method for managing network access |
March 20, 2007 |
| A method for providing security in a computing network. A device connects to a network and authenticates itself with a server. Next, the server adds the IP address of the device to a list of trusted devices. The server broadcasts the trusted IP address to all devices in the network to |
| 7180895 |
System and method for classifying network packets with packet content |
February 20, 2007 |
| Packets are classified by content across a packet flow by sequencing packets according to packet flows through a content engine. A sequencer tracks packet flows, sending and buffering out-of-order packets to have missing packets resent. A regular expression engine determines matches of |
| 7167441 |
Cascade control system for network units |
January 23, 2007 |
| Cascade control logic for use in a switch or other network unit that can be used in a cascaded stack can maintain normally a point-to-point half-duplex connection for control data with each of the next preceding and next succeeding units in the cascade. Each cascade logic device is o |
| 7155622 |
System and method for the management of power supplied over data lines |
December 26, 2006 |
| A system for providing power over data lines, particularly Ethernet data lines, comprises a network switch including a multiplicity of ports each of which is capable of supplying power in addition to data packets, a controllable power source which is coupled to said ports for supplying |
| 7145887 |
Communication of packet arrival times to cable modem termination system and uses thereof |
December 5, 2006 |
| A cable modem communicates the timing of the arrival of certain packets (such as TCP ACK packets) to a cable modem termination system. This timing feature is useful in methods for increasing the throughput in the downstream direction by eliminating TCP ACKs backing up at a cable modem. |
| 7143299 |
Method for power management of intelligent hardware |
November 28, 2006 |
| A method and device for power management of intelligent hardware (e.g., an intelligent data concentrator) for providing access to voice and data networks. Power use data of the intelligent hardware is obtained, wherein the intelligent hardware is coupled to a power source and communicati |
| 7143159 |
Method for correlating and presenting network management data |
November 28, 2006 |
| NIC collected network statistics are captured by agent devices resident on Host machines of a network. A probe (software or hardware) retrieves the collected statistics from one or more monitored hosts (each host on the network, for example) and places them in RMON MIB and RMON extension |
| 7139250 |
Advanced ethernet auto negotiation |
November 21, 2006 |
| A port on a network device engages in auto-negotiation on a network link during a first operational state to select a transmission mode, either half duplex or full duplex. If half duplex operation is selected, the port commences half duplex operation in a second operational state. Du |
| 7137047 |
Method and apparatus for selection of ARQ parameters and estimation of improved communications |
November 14, 2006 |
| The present invention includes a method for selecting appropriate forward error correction and automatic repeat request parameters for protection of a multicarrier communication channel. The multicarrier communication channel may be wired or wireless. Particular aspects of the present |
| 7133446 |
Performance indicator for wireless digital signal reception |
November 7, 2006 |
| A performance indicator for wireless digital signal reception is disclosed. In particular, a method for indicating the reception quality of a wireless digital signal at an electronic device is disclosed. The method includes a series of steps, starting with a first step of receiving t |
| 7131038 |
Performance evaluation of multicarrier channels |
October 31, 2006 |
| A method and apparatus determines an uncoded bit error rate p.sub.b based on a target symbol error rate .epsilon..sub.s. The uncoded bit error rate p.sub.b is determined based on a weighted series expansion of the target symbol error rate .epsilon..sub.s, comprising weights W that are a |
| 7130625 |
System and method for a universal wireless access gateway |
October 31, 2006 |
| The present embodiments provide a system and method for seamlessly roaming between different wireless access technologies. In an exemplary embodiment, a universal wireless access gateway (UWAG) may include a shared component and a first environment access module (EAM) that communicat |
| 7130421 |
Single piece versatile phone stand |
October 31, 2006 |
| A telephone unit has a housing with a stand pivot mount on a bottom side and with an interaction surface at a top side. A single piece stand is provided with a first end connected to the housing via the pivot mount to allow pivoting relative to the housing about the pivot mount through a |
| 7130354 |
Method and apparatus for improving error control properties for encoding and decoding data |
October 31, 2006 |
| A method, and apparatus implementing the method, encodes bits to be transmitted over a channel. The channel may be a single carrier or a multi-carrier channel. Bits are encoded based on a constellation that has a self-similarity property and also has an improved bit error rate. The c |
| 7127487 |
System and method for sidebar functionality in a regular conference system |
October 24, 2006 |
| A system and method for establishing a conference between a first user and a second user. The first user has an audio stream. The second user has an audio stream. The conference has an audio stream. A temporary conference is created. The audio stream of the conference is directed to the |
| 7123615 |
Stacked network routers |
October 17, 2006 |
| A cascaded stack of routing units each of which routes packets that it receives at its external ports and which conduct an election for a lead router that lends network and media access control addresses to the router interfaces of the other units in the stack. These other subordinat |
| 7120819 |
Method and system for fault diagnosis in a data network |
October 10, 2006 |
| Method and system of fault diagnosis in a data network. Specifically, one embodiment of the present invention discloses a method for automating the process of determining faults in a data network. A network management station (NMS) receives filtered fault data from the various subnetwork |
| 7114070 |
System and method for automatic digital certificate installation on a network device in a data-o |
September 26, 2006 |
| A system and methods for automatic digital certificate installation on network devices in a data-over-cable network are developed. One of the methods includes sending a digital certificate request from a cable modem to a predetermined network server upon determining on the cable modem |
| 7110467 |
Performance evaluation of a G.dmt-compliant digital subscriber line system |
September 19, 2006 |
| A method and apparatus selects forward error correction parameters in a channel having a plurality of subchannels in a multicarrier communications system. A signal-to-noise ratio representing a subset of the subchannels is determined. A number (s) of discrete multi-tone symbols in a |
| 7110393 |
System and method for providing user mobility handling in a network telephony system |
September 19, 2006 |
| A system and method for providing user mobility handling in a network telephony system is provided. In one embodiment, the method includes receiving a register request from a network entity on a first domain and modifying a user identifier in the register request. A registration data |
| 7107326 |
Method and system for integrating IP address reservations with policy provisioning |
September 12, 2006 |
| A method and system for policy provisioning and access managing on a data-over-cable system. One method includes receiving a first message on a first network device such as a CMTS from a second network device and marking the first message with an identifier of a network access device. |
| 7106788 |
Method and system for analytically computing and using an ANSpcm signal |
September 12, 2006 |
| A method and system for analytically and dynamically generating a repeatable digital probing signal representing an answer tone. The probing signal may conveniently be used by a modem to determine whether characteristics of the communication path between the modem and another end are |
| 7103096 |
Performance evaluation of multicarrier channels with forward error correction and automatic retr |
September 5, 2006 |
| In one embodiment, a method and apparatus increases a bit load of a multicarrier system comprising a channel having a plurality of subchannels. A bit load is determined for at least one subchannel based on a target symbol error rate .epsilon..sub.S a maximum number of symbol errors t |
