| Patent Number |
Title Of Patent |
Date Issued |
| 6538997 |
Layer-2 trace method and node |
March 25, 2003 |
| Method of troubleshooting a path that includes a source node, a set of destination nodes, and a set of at least an intermediate node in a computer network. The source node sends a packet to an intermediate node in the set of at least an intermediate node. At least a layer-2 intermedi |
| 6538985 |
Channel reservation media access control protocol using orthogonal frequency division multiplexi |
March 25, 2003 |
| A contention resolution media access control protocol for a local area network (LAN) using orthogonal frequency division multiplexing (OFDM). The protocol takes advantage of OFDM frames available on the channel physical layer. Each LAN node is assigned a LAN-unique node identifier that i |
| 6535983 |
System and method for signaling and detecting request for power over ethernet |
March 18, 2003 |
| According to the invention, an Ethernet system and method of using an Ethernet system is provided including a network side device (a hub/switch/concentrator), and a plurality of end devices (either a standard end device powered locally or a system powered device), connected to the hu |
| 6535831 |
Method for sourcing three level data from a two level tester pin faster than the maximum rate of |
March 18, 2003 |
| In one embodiment, a method is provided for testing using a programmable tester to generate a driven three state signal having a data rate faster than a maximum selectable rate of test vectors. The test vector has vector characters, each controlling a test state of a pin of a device unde |
| 6535521 |
Distributed speech coder pool system with front-end idle mode processing for voice-over-IP commu |
March 18, 2003 |
| A system and method for managing resources in a distributed Voice-over-IP (VoIP) speech coder pool arrangement including multiple speech coders each comprised of a first number of front-end modules and a second number of back-end modules. Each call session has assigned thereto a front-en |
| 6535490 |
High availability spanning tree with rapid reconfiguration with alternate port selection |
March 18, 2003 |
| An improvement to the spanning tree protocol provides for identifying a port on the bridge in the alternate port role which qualifies as a candidate root port. Upon an event causing a topology change resulting in a particular port changing from the candidate root port role to the root |
| 6535486 |
Method and apparatus for adaptive prioritization of multiple information types in highly congest |
March 18, 2003 |
| A method and apparatus are used in a gateway to discard selected frames received with a selected encoded-information-type from a communication link with a larger bandwidth to avoid overflowing an internal delay variance removing queue used for protocol translation to a communication |
| 6532503 |
Method and apparatus to detect lost buffers with a descriptor based queue |
March 11, 2003 |
| A main data memory is provided in a network device and includes a plurality of buffers for storing data packets. A plurality of descriptors, or pointers, point to the individual buffers. A status of the descriptors is stored in a descriptor reference memory. The status information includ |
| 6532237 |
Apparatus for and method of testing a hierarchical PNNI based ATM network |
March 11, 2003 |
| An apparatus for and method of enabling the debugging and testing of complex multilevel PNNI based ATM networks. The invention has applications in networks wherein one or more nodes implement only the Minimum Function PNNI implementation and wherein these modes must operate correctly in |
| 6531985 |
Integrated laptop antenna using two or more antennas |
March 11, 2003 |
| An integrated diversity antenna solution is presented that positions multiple antennas within the digital device case. The integrated diversity antenna solution works equally well with diversity radios, such as 802.11, and non-diversity radios, such as Bluetooth. The non-diversity radios |
| 6530057 |
High speed generation and checking of cyclic redundancy check values |
March 4, 2003 |
| A parallel, recursive system for generating and checking a CRC value is disclosed, in which the feedback and forward terms are separated, and the forward terms are reduced. Forward logic, which implements the forward terms, is responsive to a number of bits received from the unit of data |
| 6529986 |
Interrupt optimization using storage time for peripheral component events |
March 4, 2003 |
| A method and system for efficiently servicing a peripheral component event. In one embodiment of the present invention, peripheral component events are coalesced. The time that a peripheral component event has been stored is determined. This time interval is then compared to a storage ti |
| 6529965 |
Method of detecting TCP/IP bindings of installed network interface cards present in a computer s |
March 4, 2003 |
| A method for detecting TCP/IP (Transmission Control Protocol/Internet Protocol) bindings for Network Interface Cards (NICs) installed on Windows 95.RTM. and Windows 98.RTM. operating systems with a VPN (Virtual Private Network) client present. The present invention provides a method for |
| 6529743 |
Universal wireless telephone to modem adapter |
March 4, 2003 |
| A wireless communication system configured to transceive information through use of a wireless telephone, the wireless communication system comprising a host that is configured to transmit and receive a signal. In communication with the host is an analog-only capable modem. The modem is |
| 6529589 |
Method and system for monitoring and controlling automation equipment by modem |
March 4, 2003 |
| Methods, systems, and computer program products for monitoring and controlling automation equipment. The present invention uses a modem's processing and memory resources to interpret and translate data and commands associated with automation equipment. When receiving data from the au |
| 6529501 |
Method and apparatus for internet telephony |
March 4, 2003 |
| A telephony method and apparatus for communicating over a network. The apparatus has a device for receiving a signal representing a telephone number from a digital network. In addition, the apparatus includes a database containing a plurality of telephone numbers and a corresponding |
| 6526446 |
Hardware only transmission control protocol segmentation for a high performance network interfac |
February 25, 2003 |
| Hardware only transmission control protocol segmentation for a high performance network interface card. Specifically, one embodiment of the present invention includes a circuit for implementing transmission control protocol (TCP) segmentation. The circuit includes a segmentation circuit |
| 6525928 |
Case with communication module having a latching connector for a handheld computer system |
February 25, 2003 |
| A case for a handheld computer system is described. In an embodiment, the handheld computer system comprises a personal digital assistant. The case has multi-functional capability. The case provides a protective housing for the personal digital assistant and includes a communication modu |
| 6524122 |
Retractable connector for use with electronic devices |
February 25, 2003 |
| A communication card includes a retractable connector that is smoothly extendable and retractable. A torsion spring is positioned within a slot that receives the retractable connector and the torsion spring assists the extension of the retractable platform and counter forces that may |
| 6523070 |
Communication device with circuitry to promote cascade series connection including identificatio |
February 18, 2003 |
| A communications apparatus comprising a plurality of communication devices each having a plurality of ports and a data bus interconnecting the plurality of units, wherein each device is provided with means enabling the device to detect automatically its position on the data bus. |
| 6523068 |
Method for encapsulating and transmitting a message includes private and forwarding network addr |
February 18, 2003 |
| Methods for processing a media flow at an end of a tunneling association in a data network. One method includes receiving a data packet on a public network, such as the Internet, and recognizing that it encapsulates another data packet for a virtual connection to an application. The |
| 6522880 |
Method and apparatus for handoff of a connection between network devices |
February 18, 2003 |
| A method and system are shown for handing off a communication stream between a mobile node and a communication endpoint from a first connection initiator to a second connection initiator while maintaining call state for the communication stream. The first connection initiator establishes |
| 6522656 |
Distributed processing ethernet switch with adaptive cut-through switching |
February 18, 2003 |
| A packet switching system includes at least two network cards each receiving data packets via a plurality of associated ports, a system card, and an interconnect for connecting the system card to the network cards. Each one of the network cards comprises a plurality of port controllers |
| 6516952 |
Dual mode serializer-deserializer for data networks |
February 11, 2003 |
| A method to switch a dual-mode serializer-deserializer for data networks. In one embodiment, the present invention recites a method for configuring the communication mode of a device having a Media Access Control-Physical Layer (MAC-PHY) interface for communicating with another device. O |
| 6513128 |
Network interface card accessible during low power consumption mode |
January 28, 2003 |
| The present invention allows NIC resources to be accessed through auxiliary power and an ASIC clock while the PC is powered down and while PCI power and the PCI clock are not available. The present invention also provides an alternate path for accessing the NIC registers, downloading kee |
| 6512774 |
Fail over with multiple network interface cards |
January 28, 2003 |
| A method and system for detecting a non-functioning network interface card (NIC) in a server computer system adapted to have a plurality of network interface cards coupled thereto and communicatively coupled to client computer systems in a network. A directed packet is sent from a first |
| 6512761 |
System for adjusting billing for real-time media transmissions based on delay |
January 28, 2003 |
| A system for adjusting or establishing transmission fees based on delay and/or jitter. A network element may evaluate transmission delay and/or jitter over a given transmission system, which may be or is in effect for a particular real-time media transmission. A determination may then be |
| 6510162 |
System and method for managing channel usage in a data over cable system |
January 21, 2003 |
| A system and method for managing the data channel usage in a data over cable system having more than one data channel. The system includes network devices, which are cable modems connected in at least a downstream connection to one of the data channels in a cable network. The upstream |
| 6509876 |
Antenna for wireless communication system |
January 21, 2003 |
| An antenna system for a communication card provides wireless or radio frequency (RF) communication with other networks or communication systems. The antenna system includes an antenna attached to a retractable platform that is selectably movable between an extended position and a retract |
| 6507585 |
Multi-carrier LAN adapter device using frequency domain equalizer |
January 14, 2003 |
| A LAN Adapter device having a frequency domain equalizer. The LAN adapter device allows LAN computing devices to connect to the LAN medium. The adapter devices are internal or external to the LAN devices and provide a transceiver and protocol stacks for the LAN devices to communicate wit |
| 6501802 |
Digital silence for a PCM data communication system |
December 31, 2002 |
| A method of transmitting a quite, or zero, signal in a PCM communication system. The zero signal is specified universally in ordered set terms for either .mu.-Law or A-Law PCM systems, which has minimal energy in the A-Law system, and contains no energy within the .mu.-Law system. The |
| 6501732 |
System and method for controlling data flow in a wireless network connection |
December 31, 2002 |
| A system and method for controlling the flow of data from a data network to a mobile user over a wireless link. A data flow controller is provided in an inter-working gateway between the mobile switch center of the wireless network and the data network. The data flow controller determine |
| 6498820 |
Low complexity frequency estimator and interference cancellation method and device |
December 24, 2002 |
| A method and apparatus for estimating the frequency of a periodic signal and for canceling the interference in a modem signal. Power line noise may interfere with electronic signals. Since power lines may be either 50 Hz or 60 Hz, depending on the country, frequency estimation of the per |
| 6496867 |
System and method to negotiate private network addresses for initiating tunneling associations t |
December 17, 2002 |
| A method for initiating a tunneling association in a data network. The method includes negotiating private addresses, such as private Internet Protocol addresses, for the ends of the tunneling association. The negotiation is performed on a public network, such as the Internet, throug |
| 6496511 |
Method for preserving preassigned IP addresses in a remote access server |
December 17, 2002 |
| A method is shown for splitting a static pool of Internet Protocol (IP) addresses in a Remote Access Server (RAS) of a network server device into a dynamically assignable pool and a fixed assignment pool. The IP addresses of the dynamically assignable pool are available to any remote |
| 6496478 |
Method and apparatus for controlling traffic queues in network switches |
December 17, 2002 |
| A network switch includes a transmit queue of packets along with indication (e.g. in respective status words) of the type of each packet and its size. An arbitrator includes a counter which is incremented by the size (e.g. in bytes) of each packet of a first type (e.g. `low-loss`) and de |
| 6496105 |
Power transfer apparatus for concurrently transmitting data and power over data wires |
December 17, 2002 |
| Electrical supply current, sufficient to power a wireless access point, is transmitted concurrently with a network data signal across a transmission line. A power and data coupler couples the network data signal and the power signal, received through a data input and a power input, r |
| 6493751 |
Network configuration method and system for a window-based operating system environment |
December 10, 2002 |
| A mobile configuration manager application is provided for managing network configuration parameters essential for the configuration of a computer for operable interaction in a local area network (LAN) or wide area network (WAN) environment. The network configuration parameters are parti |
| 6493436 |
System for correcting failures of music on transfer |
December 10, 2002 |
| A plurality of audio sources are provided in a Private Branch Exchange (PBX) and monitored to determine if audio is available from any of the sources. Once an audio source with an audio presence has been found, that audio source is connected to the PBX and the PBX uses the audio from tha |
| 6493345 |
Single sender private multicast server for use with LAN emulation in asynchronous transfer mode |
December 10, 2002 |
| A system comprising a single sender SMS for forwarding multicast traffic is collocated in the same device as the LEC thus creating an optimal distribution path for multicast traffic. This reduces the latency of transmission of multicast traffic from sender to receivers by eliminating |
| 6491127 |
Powered caster wheel module for use on omnidirectional drive systems |
December 10, 2002 |
| A drive system base or platform, such as for a mobile robot, is disclosed having multiple caster wheels, each wheel having its own first motor for independent driving and its own second motor for independent steering. Each wheel is rotably and pivotably mounted in a separate wheel module |
| 6490632 |
High performance load balancing and fail over support of internet protocol exchange traffic over |
December 3, 2002 |
| A method for selecting a network interface card (NIC) to be used to send and receive data packets in an Internetwork Protocol Exchange (IPX) environment using a server computer system having a plurality of NICs coupled thereto. An outgoing data packet is addressed using an IPX address |
| 6490439 |
Lighted antenna for transceiver device |
December 3, 2002 |
| A transceiver device and method thereof for sending signals to and receiving signals from another device via a wireless connection and for providing information about the wireless connection to a user. An antenna coupled to the transceiver is visible to the user. The antenna is a lig |
| 6490295 |
High-speed MODEM operating over two or more telephone lines |
December 3, 2002 |
| A communication system configured to transceive a signal along multiple communication media of the communication system thereby increasing the rate at which the signal is transceived. The communication system comprising a source configured to transceive a signal. A communication appa |
| 6489937 |
LED matrix control system with Field Programmable Gate Arrays |
December 3, 2002 |
| An LED matrix control system using a plurality of FPGAs (Field Programmable Gate Array) in between a CPU and a LED matrix. One FPGA controls a first set of LED's and a second FPGA controls a second set of LED's. The first FPGA controls all of the column lines of an LED matrix, and contro |
| 6488543 |
Modular jack for type III PCMCIA cards |
December 3, 2002 |
| The modular jack allows a RJ series connector plug to be attached to a communications card that conforms to the PCMCIA requirements for a Type III card. The modular jack includes a main body portion including a top surface, a bottom outer surface and a front surface. The receptacle is |
| 6487690 |
Forward error correction system for packet based real time media |
November 26, 2002 |
| A computationally simple yet powerful forward error correction code scheme for transmission of real-time media signals, such as digitized voice, video or audio, in a packet switched network such as the Internet. An encoder at the sending end derives p redundancy blocks from each group of |
| 6487603 |
Method and apparatus for real time communication over switched networks |
November 26, 2002 |
| A method and apparatus for communicating a real time media input over a network. The apparatus encodes the input into data packets having a number of frames ordered according to a first variable. A receiving device unpacks and buffers the unpacked data packets for playout according to a |
| 6487206 |
Method and apparatus for adjusting the local service policy within an ATM switch based on non-AT |
November 26, 2002 |
| A method for adjusting an ATM switch local service policy based on a non-ATM protocol service parameter, the method including the steps of inspecting the payload of an ATM PDU received at a switch along at least one VCC to identify a non-ATM PDU protocol identifier included in the pa |
| 6487196 |
System and method for simulating telephone use in a network telephone system |
November 26, 2002 |
| A system and method in a network-based telephone system for simulating a typical plain old telephone system (POTS) connection by generating sounds in response to conditions in the telephone connection that simulate POTS sounds that occur during the typical POTS connection. Telephones in |
