| Patent Number |
Title Of Patent |
Date Issued |
| 6356970 |
Interrupt request control module with a DSP interrupt vector generator |
March 12, 2002 |
| In a system having an DSP, an ASIC and a memory, in which the ASIC generates a number of different competing interrupts for the DSP to service, the ASIC has an interrupt request control module which automatically provides the DSP with a vector pointing to the memory location of the i |
| 6353891 |
Control channel security for realm specific internet protocol |
March 5, 2002 |
| Systems and methods for implementing security with RSIP are disclosed. In a first security system and method, authentication is provided with a combination of a userid and HMAC parameters. The userid parameter identifies the sender and the HMAC parameters are used with a shared key t |
| 6353614 |
Method and protocol for distributed network address translation |
March 5, 2002 |
| A method and protocol for Distributed Network Address Translation ("DNAT") is provided. DNAT is used to overcome the limited address 32-bit address space used for versions of the Internet Protocol ("IP"). DNAT is used with small office or home office networks or other legacy local networ |
| 6353414 |
Antenna for a portable information device |
March 5, 2002 |
| An apparatus and method of mounting an antenna in a portable information device (PID) are provided. The PID includes a housing having an elongated slot formed therein. A circuit board is disposed with the housing. An elongated antenna housing including a first end and a second end is |
| 6352441 |
Locking spring for a circuit board ejector |
March 5, 2002 |
| A locking spring for a circuit board ejector includes a body portion, a first end portion and a second end portion. The second end portion includes a manually operable portion. The manually operable portion includes a plurality of ridge portions to allow a user to apply a load to the |
| 6351785 |
Interrupt optimization using varying quantity threshold |
February 26, 2002 |
| A method and system for efficiently servicing a peripheral component event. In one embodiment of the present invention, peripheral component events are coalesced. A peripheral component such as, for example, a network interface card generates a first interrupt when the number of coalesce |
| 6351773 |
Methods for restricting access of network devices to subscription services in a data-over-cable |
February 26, 2002 |
| Methods for providing restricted access for a network device such as a cable modem or customer premise equipment on a data-over-cable system. An unknown or new network device is assigned a restricted network address such as a restricted Internet Protocol address. The restricted network |
| 6351719 |
Shared slot PCI/ISA bus extender |
February 26, 2002 |
| A shared slot PCI/ISA bus extender apparatus includes an ISA Card, a PCI Card, and first, second and third standoffs. The ISA Card includes a digital input/output device. The PCI Card is electronically connected to the ISA Card. The first, second and third standoffs are positioned betwee |
| 6351529 |
Method and system for automatic gain control with adaptive table lookup |
February 26, 2002 |
| 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 |
| 6351524 |
Toll saving method and apparatus for a remote access system |
February 26, 2002 |
| A toll saving method and apparatus for a remote access system is provided. A first communication device receives a connection request from a second communication device. The first communication device then decodes caller identification information from the connection request to determine |
| 6347347 |
Multicast direct memory access storing selected ones of data segments into a first-in-first-out |
February 12, 2002 |
| A data transfer technique employs direct memory access (DMA) logic to transfer data to a memory and simultaneously store the data into a buffer that is closely coupled to a processor, enabling the processor to access the data quicker than if accesses to the memory were required. The |
| 6347073 |
Method and system for controlling data transfer between a logical switch set and outside nodes |
February 12, 2002 |
| A plurality of independent control lines are used by I/O modules to determine which switch of a redundant switch set is the active or primary switch. Each line is driven by a different source. Each of these control lines are driven by one of a plurality of judges an each judge can read |
| 6345988 |
Inter-card connection between adjacently positioned expansion cards |
February 12, 2002 |
| The present invention is an apparatus and method of connecting, combining and extending the functionality of adjacently stacked, modular expansion cards in electronic devices through the use of a novel electrical connection between the expansion cards. Preferred embodiments of the pr |
| 6343078 |
Compression of forwarding decisions in a network device |
January 29, 2002 |
| An apparatus for and a method of compressing the forwarding decision for a frame within a network device. A forwarding decision is compressed yielding a forwarding pointer that occupies far less memory space than the corresponding output port vector. The compressed forwarding pointers ar |
| 6341135 |
Low power buffer system for network communications |
January 22, 2002 |
| NMOS transistor buffers are used to buffer the output of a system. The system can include a network interface card. The NMOS transistor buffers receive the output of the shaped Ethernet data signals and drive a transformer. The NMOS transistor buffers allow for low power consumption |
| 6338656 |
Modular jack for Type III PCMCIA cards |
January 15, 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 |
| 6338077 |
Transfer function implementation using digital impedance synthesis |
January 8, 2002 |
| A system and circuit is provided for digitally synthesizing the impedance of a transfer function. The impedance of the transfer function is digitally synthesized by generating a current that, when combined with an input voltage, results in the impedance of the transfer function. This is |
| 6337862 |
Network switch with truncated trie look-up facility |
January 8, 2002 |
| A network switch including a multiplicity of ports for the reception and forwarding of addressed data packets including network destination data and network source address data, and a forwarding database having a trie search facility organised in blocks of pointers, which are accessed by |
| 6333860 |
Emi shield with connector cover extension |
December 25, 2001 |
| A communications card includes a housing formed by a top cover and a lower cover panel. The top cover is constructed from a generally non-conductive material and the lower cover panel is constructed from a conductive material. A substrate is disposed within the housing and a conductive |
| 6332142 |
Management information base attribute discriminator |
December 18, 2001 |
| A management information base (MIB) attribute discriminator process is employed for organizing MIB attributes for system network management station (NMS) software. The NMS software monitors and configures network devices having a system object identifier. The devices have agents comp |
| 6331987 |
Method and system for bundling data in a data-over-cable system |
December 18, 2001 |
| A method and system for specifying channels for data sent upstream in a data-over-cable system, including data leaving the data-over-cable system is provided. The data sent upstream from an application has a corresponding group-identification parameter, also referred to as a flow-ide |
| 6330229 |
Spanning tree with rapid forwarding database updates |
December 11, 2001 |
| Management of forwarding databases in the case of link failures on bridges according to the all improved spanning tree, limits the propagation of notifications of topology change to only those parts of the network which are affected by the link failures, and trigger partial flushing as o |
| 6330154 |
Cooling equipment |
December 11, 2001 |
| Cooling apparatus is used to cool equipment, for example electrical equipment, using a fan. In an embodiment described, the cooling apparatus comprises a duct for communication with the fan and for transporting air past the equipment. The duct may include a diffuser for improving the air |
| 6329960 |
Antenna assembly |
December 11, 2001 |
| An antenna assembly comprises a printed circuit board having on one face various components and on the other face a ground plane, and a planar F suspended antenna comprising a conductive ground plane element having peripheral parts overlapping the edge of an aperture in the board a c |
| 6329906 |
Power transfer apparatus for concurrently transmitting data and power over data wires |
December 11, 2001 |
| 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 re |
| 6328480 |
Connectors for providing fibre optic connection to Ethernet devices having twisted-pair connecti |
December 11, 2001 |
| 100BASE-FX connectivity for a port on 100BASE-TX Ethernet equipment is obtained by a fiber optic transceiver which is connected to a standard plug for a twisted pair connector and is also connected to signal detect inputs via the plug and thence by way of an isolating coupling to a logic |
| 6327662 |
Security through the use of tokens and automatically downloaded applets |
December 4, 2001 |
| A method and system for providing security during use of an intermediate device which represents clients to a central site. In one embodiment of the invention, an intermediate device includes memory. The memory of the intermediate device is adapted to a store a deliverable security apple |
| 6327625 |
FIFO-based network interface supporting out-of-order processing |
December 4, 2001 |
| Support for priority and IP security packets, and other protocols at the network interface level and in conjunction with FIFO-based packet buffers is provided by allowing out of order processing of certain packets in the FIFO. The optimized character of FIFO for sequential transfer is |
| 6327620 |
Methods and apparatus for collecting, storing, processing and using network traffic data |
December 4, 2001 |
| Methods and apparatus for collecting, storing, processing and using data, such a RMON2 network traffic data, are described. Network traffic probes are identified and attempts are made to configure the identified probes to generate network traffic data sets which are as close to a presele |
| 6325674 |
Card edge connector for a modular jack |
December 4, 2001 |
| A card edge connector allows a modular jack to be electronically connected to a PCMCIA Type III communications card. The card edge connector includes a modular jack with a main body portion having a top surface, a bottom surface, a front surface and a rear surface. A receptacle is dispos |
| 6325346 |
Keyboard mounting apparatus and method for a personal computing appliance |
December 4, 2001 |
| A keyboard mounting apparatus and method for stowing a keyboard on a sub-compact, computer-based information appliance. In particular, the apparatus includes an extending portion located at the rear of the appliance housing and a corresponding interlocking portion located on the keyb |
| 6324652 |
Asynchronous switching circuit for multiple indeterminate bursting clocks |
November 27, 2001 |
| An asynchronous switching circuit for multiple indeterminate bursting clocks. In one embodiment, the present invention recites a clock-switching circuit that provides a single unclipped and glitch-free clock signal at its output from among multiple clock inputs. The clock-switching circu |
| 6324575 |
Intelligent selection of multicast filtering modes for switch ports |
November 27, 2001 |
| A method and system for intelligently selecting the multicast filtering mode of a port in a switch. In one embodiment the present invention determines whether a client is coupled to a port of a switch. In such an embodiment, provided that a client is coupled to the port, the present |
| 6324181 |
Fibre channel switched arbitrated loop |
November 27, 2001 |
| In a fibre channel network environment wherein an arbitrated loop is provided a switchable connection with another arbitrated loop, a technique and corresponding apparatus are provided for controlling signal paths through the hubs stack between any two devices such that routing of a |
| 6324178 |
Method for efficient data transfers between domains of differing data formats |
November 27, 2001 |
| A method for efficient data transfers between domains of differing data formats. In one exemplary implementation, data transfer is performed with respect to an IEEE 1394 communication domain and an Ethernet communication domain. The novel data transfer method advantageously eliminates th |
| 6321264 |
Network-performance statistics using end-node computer systems |
November 20, 2001 |
| A method for quantifying communication performance in a communication network comprising computer systems communicatively coupled to each other with communication equipment. In one embodiment, the present invention measures performance statistics associated with data packets sent and |
| 6320883 |
Method and apparatus for automatic selection of an unknown ISDN reference |
November 20, 2001 |
| A method and apparatus for discerning between unknown but standardized ISDN interfaces, such as the U and S/T reference points, and automatically selecting compatible routing for the respective interface to compatible ISDN equipment. An unknown reference point supported by an ISDN servic |
| 6320867 |
Method and apparatus for hierarchical management of subscriber link traffic on digital networks |
November 20, 2001 |
| The current invention provides apparatus for relieving congestion associated with interfacing voice-band data, and broad-band data, with a network such as the public switched telephone network (PSTN).A hierarchical system for converting digital transmissions on a network between a first |
| 6317455 |
System and method for user information transfer before modem connection |
November 13, 2001 |
| A system and method for user information transfer before modem connection. The invention makes high-speed modems more efficient, particularly for transaction and Internet applications, by providing for transmission of pre-connection user data during modem training. A training sequence fo |
| 6315618 |
Surface mountable electrical connector system |
November 13, 2001 |
| A connector platform includes a base having a first end and opposing second end. A retention wall upwardly projects from the first end of the base and has a plurality of slots longitudinally extending therein. A plurality of resiliently flexible conducting wires each have a first end pro |
| 6314525 |
Means for allowing two or more network interface controller cards to appear as one card to an op |
November 6, 2001 |
| The present invention provides a method and an apparatus for allowing a plurality of network interface controllers (NICs) to appear as a single NIC to an operating system. This method and apparatus is realized externally to the NIC driver software, and thus does not require NIC drive |
| 6311276 |
Secure system for remote management and wake-up commands |
October 30, 2001 |
| A security feature is added to the Wake On LAN packet protocol, and an extensible mechanism is provided allowing for other commands and options to be specified within the Wake On LAN packet. The protocol allows for signaling power management circuits in a host computer in response to |
| 6311218 |
Method and apparatus for providing security in a star network connection using public key crypto |
October 30, 2001 |
| An intermediate system authenticates using cryptography. The authentication routine requires a user to supply a secret known only to the user before allowing data to be transmitted. The secret is never transmitted. The invention may be incorporated into an intermediate system, into i |
| 6310882 |
High speed switch architecture using separate transmit and receive channels with independent for |
October 30, 2001 |
| A switching architecture for very high data rates which is placed between a port connecting to a fiber optic gigabit ethernet link and a two Gbit/sec backplane of a concentrator. A port connects to the link for both receiving and transmitting data packets from and to the link. A first FT |
| 6310877 |
Method of connectionless message transfer in an asynchronous transfer mode network |
October 30, 2001 |
| A method of transferring relatively short messages in an Asynchronous Transfer Mode network utilizing an emulated connectionless oriented technique. The method permits a short burst of data to be transmitted between users, utilizing a modified signaling scheme. The signaling scheme i |
| 6310874 |
Learn pending frame throttle |
October 30, 2001 |
| Flow of data units to an address resolution processor is controlled to inhibit multiple data units from a single multicast flow from being enqueued with the address resolution processor. In a switch having a plurality of Input/Output Application Specific Integrated Circuits ("I/O ASI |
| 6308192 |
Methods and apparatus for adaptive filters |
October 23, 2001 |
| The present invention relates to improved adaptive filtering techniques and architectures. Preferably, this filtering is performed as part of the digital processing that occurs with a digital signal processor. It is a feature of this invention that the adaptive filtering taught herein |
| 6307880 |
Method and system for externally incorporating automatic switching between voice and data commun |
October 23, 2001 |
| A method and apparatus for automatically switching between voice and data communications as directed by a voice and data capable modem via a cable assembly incorporating a switching means for facilitating and inhibiting the routing of voice information to a voice telephone. A voice and d |
| 6307750 |
Interface panel apparatus and method |
October 23, 2001 |
| An interface panel for providing telecommunication signals to a plurality of electronic modules housed within an electronics cabinet is provided. A bracket member includes a plurality of openings. A plurality of connectors for receiving a plurality of input cables is positioned within th |
| 6304877 |
Device description and management language for computer network devices |
October 16, 2001 |
| A computer network management software program in a network management device, with a device description language (DDL) file providing an abstraction of features of a network device in a computer network. The DDL file is a human readable text file. A management application monitors and |
