| Patent Number |
Title Of Patent |
Date Issued |
| 6839239 |
Electronic device packaging |
January 4, 2005 |
| The present invention discloses a large form factor media enclosure structure configured to removably retain a smaller form factor device therein. The large form factor media enclosure structure includes a first flexible retainer, and a second retainer oppositely disposed from said f |
| 6836862 |
Method of indicating wireless connection integrity |
December 28, 2004 |
| A method and system thereof for monitoring the data transfer integrity of a wireless connection between two devices, in particular two Bluetooth-enabled transceivers. A number of data packets are transmitted from one of the two devices to the other in a first-occurring transmission. |
| 6834326 |
RAID method and device with network protocol between controller and storage devices |
December 21, 2004 |
| The present invention relates to transparent access to a redundant array of inexpensive devices. In particular, it provides a method and device for connecting redundant disk drives to a controller, preferably an intelligent switch, via a network. The disks are controlled by commands |
| 6834079 |
Efficient implementation for equalization of multicarrier channels |
December 21, 2004 |
| A system and method for minimizing the effective channel impulse response in multitone communication systems, is provided. A time domain equalizer is utilized to shorten the channel impulse response to a length equal to or less than the time duration of the cyclic prefix. The time domain |
| 6833712 |
Differentiating between board-insertion power-on and chassis power-on |
December 21, 2004 |
| A system for detecting a board-insertion power-on versus a chassis power-on is disclosed. By using recessed circuit board sense contacts, recessed chassis sense contacts, or equivalent, a circuit can detect when power reaches a circuit board's power contacts before the circuit board sens |
| 6829314 |
Adapter for near end crosstalk and echo canceller for bi-directional digital communications |
December 7, 2004 |
| The invention is embodied in an adapter for use with a near end crosstalk (NEXT) canceller which reduces crosstalk, from a locally transmitted signal, in a locally received digital signal by superimposing, on the received signal, a correction signal comprising a sum of m largest time |
| 6829309 |
Phase detector for baud rate-sampled multi-state signal receiver |
December 7, 2004 |
| The invention is related to analog to digital conversion of a multi-level analog signal at a very low sampling rate. The analog signal is sampled by a recovered clock to produce a succession of samples of the analog signal. The low sampling rate may be within an order of magnitude of the |
| 6829252 |
Digital subscriber line access multiplexer for use with ethernet over VDSL transport facility |
December 7, 2004 |
| A digital subscriber line access multiplexer (DSLAM) adapted for use with an Ethernet over Very High Speed Digital Subscriber Line (VDSL) transport facility. The DSLAM connects to a plurality of CPE devices on one end and to a high speed Ethernet link on the other. The DSLAM is adapted t |
| 6829239 |
Apparatus and methods for determining the correct workstation within a LAN for a LAN modem to ro |
December 7, 2004 |
| A LAN modem permits unambiguous routing for multiple workstations located on a LAN to each gain access through the LAN modem to any one of a number of different remote servers located on a number of different remote networks using a combination of public port number and public address of |
| 6826613 |
Virtually addressing storage devices through a switch |
November 30, 2004 |
| The present invention relates to transparent access to network attached storage devices, configured to any of several protocols, such as SCSI over IP, NAS or NASD. In particular, the present invention provides for using a switch to transparently aggregate storage devices. The switch appe |
| 6826283 |
Method and system for allowing multiple nodes in a small environment to play audio signals indep |
November 30, 2004 |
| A method and system capable of playing different audio signals in different nodes of a small environment. The system is comprised of a number of nodes, which may be rooms of a house or hotel, or offices of a business. Each node has at least one audio speaker. The system further comprises |
| 6826279 |
Base band echo cancellation using laguerre echo estimation |
November 30, 2004 |
| A base band echo cancellation method and apparatus utilizing Laguerre echo estimation. The method begins with a series of transmitted symbols that are stored in a buffer. The buffer is segmented into a head portion and a tail portion. The symbols in the tail portion are passed through a |
| 6826174 |
Voice-over-IP interface for standard household telephone |
November 30, 2004 |
| The present invention enables a traditional analog telephone to be used with VoIP applications. For example, the user could connect their standard 900 MHz telephone to this invention, establish a VoIP call and enjoy the freedom of movement their cordless telephone provides. The preferred |
| 6826160 |
Dynamic bandwidth allocation through multi-channel time slot assignment and migration for broadb |
November 30, 2004 |
| A method to dynamically allocate time slots in multiple channels of a bandwidth over which a device can communicate on the network. In one embodiment, the present invention recites a method comprising several steps. First, a request to log onto a network is received from a device. Th |
| 6826154 |
Method and apparatus for seamless mobility between different access technologies |
November 30, 2004 |
| The present invention includes a method and device to support hand off of a session between a mobile terminal and a server, while continuing the session. One aspect of the invention is a method involving a first entity having an IP stack and a second entity having an IP stack. These enti |
| 6822957 |
Distributed network address translation for a network telephony system |
November 23, 2004 |
| System and method for distributed network address translation in a network telephony system. A first network phone with a first protocol, requests at least one locally unique port from a first network device. The first network phone and the first network device are located on a first net |
| 6821555 |
Edge connectors for printed circuit boards comprising conductive ink |
November 23, 2004 |
| Disclosed are edge contacts for printed circuit boards comprising a copper lead coated with conductive ink comprising a binder and graphite powder, carbon black, and silver flakes. Also disclosed are printed circuit boards containing the contacts and methods for manufacturing the contact |
| 6819680 |
Link aggregation control for network devices |
November 16, 2004 |
| A link aggregator control which produces for a system in which the aggregator is located data units identifying the system and a partner identity for a partner system, and in response to a change from an old system identity to a new system identity produces data units identifying the |
| 6816500 |
Apparatus, method and system for multimedia access network channel management |
November 9, 2004 |
| An apparatus, method and system are provided for multimedia access network channel management, such as channel management in a hybrid fiber-coaxial cable network, for voice (telephony), video, fax and data transmission. The preferred system embodiment includes a plurality of cable teleph |
| 6816018 |
System and method for partitioning a system timing reference among multiple circuit boards |
November 9, 2004 |
| In a phase-locked loop, multiple input clock references can each connect to a different interface card. Each interface card can include a phase comparator portion of a phase-locked loop. The phase comparators can produce a phase error signal for a phase-locked loop. One or more of the |
| 6810420 |
Allocation of IP address by proxy to device in a local area network |
October 26, 2004 |
| A device is discovered on a network by means of a discovery protocol operated by a proxy and a protocol address for the device is obtained if required by the proxy, which requests a protocol address in accordance with a dynamic host communication protocol, then in the absence of resp |
| 6807437 |
Wireless communication apparatus for portable electronic devices |
October 19, 2004 |
| An apparatus and system for providing wireless communication for a portable computer system. In one embodiment, the present invention is a wireless communication apparatus. The wireless communication apparatus is adapted to be communicatively coupled to a portable computer system. In the |
| 6807266 |
Method and apparatus for provisioning a soft switch |
October 19, 2004 |
| A provisioning server (11) having various operating modes serves to provide a unified logical view of a soft switch (10) to a user via a display (14) and in response to receiving new service information from the user, provisioning corresponding configuration parameters to various of the |
| 6807193 |
Cable modem with dribble grant access system and method |
October 19, 2004 |
| A modem, communications system and method are provided with a transmitter and a receiver connected to a modem termination system (CMTS) by a medium. The modem has a memory forming a transmit queue including voice and video. The modem has a controller for sending data units from the recei |
| 6807182 |
Stacked network devices including a protocol engine and distributed trunk ports and method of op |
October 19, 2004 |
| A trunk connection to a stack of network switches is coupled to physical ports distributed among the switches. A switch has an internal logical port for a protocol engine. A packet received by way of the trunk at a port on a switch which does not host the protocol engine is sent over a |
| 6807175 |
Distributed multicast routing in packet-based communication network devices |
October 19, 2004 |
| A network router has a distributed processing scheme for multicast packets. The router has a look-up and forwarding engine operative in response to the reception of an internet protocol multicast packet to direct the packet to a multiplicity of transmit ports which may or may not be |
| 6804804 |
Calculation and transmission of error check codes |
October 12, 2004 |
| A method of transmitting data (1) generated in an upper layer protocol such as iSCSI in a transport protocol such as TCP or SCTP, without requiring separate reads for check code generation and transmission. The upper layer protocol data is read into a transmission engine (5) that calcula |
| 6804721 |
Multi-point link aggregation spoofing |
October 12, 2004 |
| A system with at least one, and preferably at least two, end devices that operates according to a point-to-point protocol such as the IEEE standard 802.3ad. The two end devices communicate with each other through a trunk cluster formed from a plurality of cluster devices. Each of the clu |
| 6804262 |
Method and apparatus for channel determination through power measurements |
October 12, 2004 |
| In a data-over-cable system, a cable head-end transmits a signal that includes a plurality of analog television signal components an at least one quadrature amplitude modulated (QAM) digital signal component, the signal components being defined by frequency channels. A cable modem has a |
| 6804230 |
Communication device with forwarding database having a trie search facility |
October 12, 2004 |
| A communication device which includes a hardware trie search facility. At least part of a memory is divided into memory blocks, each of said blocks consisting of a multiplicity of locations, at least some of said locations each providing when accessed a pointer to another block and an in |
| 6804224 |
System and method for providing telephone service having private branch exchange features in a v |
October 12, 2004 |
| A system and method for providing telephone service to a user of a telecommunications device using a data network service provider. The data network service provider has a local service host that is accessible by a local access identifier. A caller uses a telecommunications device to dia |
| 6801953 |
Trunking in stacked communication devices |
October 5, 2004 |
| Trunking or other relationship is defined between ports on different devices in a cascade-connected stack of network devices. When network communications are passed via the cascade connection an indication is included of whether it originated from a port that is part of a trunk and t |
| 6801950 |
Stackable network unit including register for identifying trunk connection status of stacked uni |
October 5, 2004 |
| In a stack of network units each includes a multiplicity of ports for receiving and forwarding addressed data packets and a forwarding engine which in response to address data selects at least one port for the forwarding of a data packet. A cascade connects the units and allows the t |
| 6801605 |
Telephone network signal conversion system |
October 5, 2004 |
| An integrated circuit is provided to convert an analog telephone signal into a digital format. The integrated circuit includes an analog-digital converter coupled to an averager. Sampled analog values are averaged at intervals and compared to a threshold level to determine a digital valu |
| 6801527 |
Stackable network unit including registers for identifying stack members and trunk ports |
October 5, 2004 |
| A network switch comprises a multiplicity of ports for receiving and forwarding addressed data packets, a forwarding engine for directing packets received at the ports to at least one other port, a register for storing unit identifications of a set of units including the network unit, |
| 6795946 |
Fast frame error checker for multiple byte digital data frames |
September 21, 2004 |
| Apparatus for performing a cyclic redundancy code check on a binary digital signal consisting of a variable multiplicity (M) of data bytes comprises a buffer register for temporarily storing in succession segments each consisting of an integral number (N) of bytes. Each successive segmen |
| 6795869 |
Video signal processing method and apparatus for internet appliances or embedded systems |
September 21, 2004 |
| A communication system embodying the invention has a communication channel with at least two ends, one end of the channel being connected to a transmission device with relatively limited computational capacity and an other end of the channel being connected to a computer having relativel |
| 6795717 |
Communications device having retractable display means |
September 21, 2004 |
| A communications device and method of operating the communications device are provided. The communications device includes a housing having a first edge portion. A display device is attached to a display device support member. The display support member is slidably attached to the housin |
| 6795688 |
Method and system for personal area network (PAN) degrees of mobility-based configuration |
September 21, 2004 |
| A method and system thereof for dynamically configuring a device, adapted to be communicatively coupled in a wireless personal area network, with an attribute corresponding to a characteristic of the device. In one embodiment, the method involves receiving an attribute setting corres |
| 6795429 |
System and method for associating notes with a portable information device on a network telephon |
September 21, 2004 |
| A system and method for associating notes to a call with a portable information device, such as a personal digital assistant. In one embodiment, notes taken during a call are associated with information about the call, such as parties to the call, the date and time, and the subject m |
| 6792105 |
Current-mode differential active hybrid circuit |
September 14, 2004 |
| In at least one embodiment, a current mode differential active hybrid circuit having an H-bridge output driver with a first output resistor coupled across a transmission medium output. Drive circuitry is coupled to the output H-bridge and constructed to supply data modulated signals to |
| 6788782 |
Method and apparatus for switching between multiple communication lines |
September 7, 2004 |
| Disclosed is an apparatus and method for switching between two network lines, such as telephone subscriber lines. Households and offices are increasingly equipped with multiple network lines for voice and data communications. The line switching unit of the present invention has a fir |
| 6788682 |
Mapping of packets between links of trunk groups using Mux/Demux devices |
September 7, 2004 |
| A method and apparatus for mapping packets received over a first trunk group comprising n links to a second trunk group comprising m links. A first Mux/Demux device receives packets over the n communication links at n corresponding input ports. The first Mux/Demux device inserts within |
| 6785349 |
Correlation based method of determining frame boundaries of data frames that are periodically ex |
August 31, 2004 |
| A correlator for use in a timing recovery apparatus of a receiver in a multicarrier transmission system. The correlator locates the beginning of a data frame and initializes a pointer register with an address to a location within the receive signal buffer. Data is transferred to a signal |
| 6785347 |
Nonlinear-least squares based method and apparatus for FSK signal decoding |
August 31, 2004 |
| Disclosed is a method and apparatus for receiving FSK signals using estimation theory. A received signal is filtered to obtain energy estimates for a first frequency corresponding to a binary "0" and a second frequency corresponding to a binary "1". The energy estimates are subtracte |
| 6785299 |
Optimized high-level data link control encoding/decoding |
August 31, 2004 |
| A system and method are provided for encoding and decoding a bitstream according to the High level Data Link Control protocol (HDLC) without having to analyze the bitstream bit by bit. An optimized encoder and an optimized decoder are provided. Both encoder and decoder analyze their |
| 6785292 |
Method for detecting radio frequency impairments in a data-over-cable system |
August 31, 2004 |
| A method and system for determining a source radio frequency impairment in a data-over-cable system. The method includes ascertaining reference signal-to-noise ratios and comparing them to signal-to-noise ratios that are measured when the system is in operation. The signal-to-noise ratio |
| 6785286 |
Port mirroring across a trunked stack of multi-port communication devices |
August 31, 2004 |
| A stackable multi-port communication device for a packet-based data communication system, having a multiplicity of physical ports for the reception and dispatch of data in the form of packets, includes switch logic for selecting for a packet at least one destination selected from a m |
| 6785261 |
Method and system for forward error correction with different frame sizes |
August 31, 2004 |
| A mechanism for recovering data associated with lost packets, suitable for use in a VoIP network. The telecommunications network is preferably a packet switched network having IP telephony gateways serving as interfaces between a telephone device and the IP network. The IP telephony gate |
| 6782428 |
Allocation of asymmetric priority to traffic flow in network switches |
August 24, 2004 |
| Controlling the allocation of priority for data packets within a multi-port switch includes detecting the commencement of an HTTP message; enabling the storage of an identification of the source port on which that message was received by the switch; finding correspondence between destina |
