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| Number | Title | Issue Date |
| 6895429 | Technique for enabling multiple virtual filers on a single filer to participate in multiple address spaces with overlapping network addresses A technique enables a server, such as a filer, configured with a plurality of virtual servers, such as virtual filers (vfilers), to participate in a plurality of private network address spaces having potentially overlapping network addresses. The technique also enab... | 05/17/2005 |
| 6871317 | Technique for efficiently organizing and distributing parity blocks among storage devices of a storage array A distributed parity technique organizes and distributes parity blocks among storage devices of an array coupled to a storage system. The array illustratively comprises a plurality of disks, each of which is divided into blocks of fixed size. The blocks are then org... | 03/22/2005 |
| 6853623 | Remote monitoring of switch network A technique for use in gathering network activity-related information from cascaded network switches is provided. Using this technique, the information can be gathered without substantially reducing performance of the cascaded switches. In one embodiment, a single r... | 02/08/2005 |
| 6851082 | Concentrated parity technique for handling double failures and enabling storage of more than one parity block per stripe on a storage device of a storage array A concentrated parity technique allows construction of an extended array that is tolerant of any one or two storage device failures and that enables storage of more than one parity block on a single storage device of the array. The concentrated parity technique uses... | 02/01/2005 |
| 6851070 | System and method for managing time-limited long-running operations in a data storage system A system and method for managing a time-limited long-running process that acts upon disks of a disk array is based upon a general rule of acting upon each disk in an order based upon the length of time from when it was last acted-upon. Disks having the greatest last... | 02/01/2005 |
| 6851028 | System and method for processing memory requests The present invention incorporates a technique that enables the processing of memory requests without requiring memory devices that support a request identifier (ID). The present invention maintains an association between a request identifier and a first memory requ... | 02/01/2005 |
| 6850999 | Coherency coverage of data across multiple packets varying in sizes A coherency resolution technique enables efficient resolution of data coherency for packet data associated with a service queue of an intermediate network node. The packet data is enqueued on a write buffer prior to being stored on an external packet memory of a pac... | 02/01/2005 |
| 6850518 | DLSw RIF passthru technique for providing end-to-end source route information to end stations of a data link switching network A data link switching (DLSw) routing information field (RIF) passthru technique provides end-to-end source route information to source and destination endstations coupled to respective local and remote source-route bridge (SRB) subnetworks of a DLSw network. The loc... | 02/01/2005 |
| 6842453 | Method and apparatus for implementing forwarding decision shortcuts at a network switch A shortcut technique implements forwarding decision shortcuts at a switch for frames routed between subnetworks of a computer network. The switch monitors the flow of a first frame of a particular type to and from the router, which renders a forwarding decision for ... | 01/11/2005 |
| 6839348 | System and method for distributing multicasts in virtual local area networks The invention relates to a system and method for efficiently distributing multicast messages within computer networks configured to have one or more virtual local area network (VLAN) domains. A multicast network device (MND), having a plurality of interfaces, includ... | 01/04/2005 |
| 6836838 | Architecture for a processor complex of an arrayed pipelined processing engine A processor complex architecture facilitates accurate passing of transient data among processor complex stages of a pipelined processing engine. The processor complex comprises a central processing unit (CPU) coupled to an instruction memory and a pair of context da... | 12/28/2004 |
| 6381221 | System and method for monitoring line performance in a digital communication network System for monitoring the performance of at least one line at a node of a digital communication network, such a system including a set of hardware registers associated with the line for registering line performance information associated therewith, a set ... | 04/30/2002 |
| 6381630 | Computer system and method for characterizing and distributing information A system enables a consumer to generate a filtering program based on criteria set forth by a system operator during run time. During system operation, the operator selects appropriate filtering criteria from a display screen associated with a respective c... | 04/30/2002 |
| 6249818 | Network transport driver interfacing Application programs can dynamically link to multiple transports by attaching and detaching vectors (jump addresses, i.e., entry points to the functions provided by third party transport stack/drivers) of third party transport stack/drivers in a dynamic m... | 06/19/2001 |
| 6246669 | Method and system for optimizing connection set-up operations in a high speed digital network In a high speed digital network including access nodes and network nodes each having topology data bases, a method for optimizing the connection set-up operations required for connecting a calling end-user attached to a local access node to a destination ... | 06/12/2001 |
| 6243275 | Dc to dc power converter using synchronously switched switches A full bridge and half bridge dc-dc converter including a primary side having switching devices connected to a transformer, and a primary side controller, a secondary side including switching devices connected to a secondary side of the transformer, an in... | 06/05/2001 |
| 6219416 | Method and apparatus for processing FISU frames according to the Signalling System 7 protocol A FISU frame handler which is connected between an adapter and a SS7 low speed network. For each FISU frames transmitted or received in the adapter, an interrupt is generated to a processor located in the adapter. In order to diminish the number of proces... | 04/17/2001 |
| 6097882 | Method and apparatus of improving network performance and network availability in a client-server network by transparently replicating a network service A client-server network including a number of client computer systems, each of the client computer systems having a network interface, a number of server computer systems, each of the server computer systems having a network interface, and a replicator sy... | 08/01/2000 |
| 5745697 | Network flow control having intermediate node scalability to a large numbers of virtual circuits A computational method and apparatus allocates transmission rate to source end nodes, and both reduces the computational complexity, and reduces the state information which must be retained concerning each VC, without significantly degrading convergence p... | 04/28/1998 |
| 5491752 | System for increasing the difficulty of password guessing attacks in a distributed authentication scheme employing authentication tokens An improved security system inhibits eavesdropping, dictionary attacks, and intrusion into stored password lists. In one implementation, the user provides a workstation with a "password", and a "token" obtained from a passive authentication token generato... | 02/13/1996 |
| 5428615 | Many to few group address translation through a network bridge A connection apparatus for connecting a first communication system with a second communication system and a third communication system. A first frame is received from the first communication system, where the first frame has a multicast address as a desti... | 06/27/1995 |
| 5412703 | Reduced partial volume artifacts in image reconstruction, with application to X-ray computed tomography An apparatus for correcting an X-ray tomographic image is presented, where the tomographic image is created by measuring an X-ray transmission coefficient at each of a plurality of X-ray beam paths through an object to enable reconstructing a tomographic ... | 05/02/1995 |
| 5408650 | Memory analysis system for dynamically displaying memory allocation and de-allocation events associated with an application program A memory analysis system analyzes memory "events," i.e., the allocation or deallocation of memory locations, associated with the execution of an application program and produces a graphic display associating dynamically allocated memory segments with vari... | 04/18/1995 |
| 4876468 | Thyristor driver turn-off circuit A gate drive circuit for a thyristor has a power supply and an amplifier for supplying current to a gate electrode of the thyristor. A timing signal is generated to initiate conduction of the thyristor. A voltage level signal is generated in response to a... | 10/24/1989 |
| 4870863 | Modular switch device A modular switch device includes a housing enclosing an interconnected control module, a display module and a power module. A sensor module supplying analog data signals from one of a temperature or pressure sensing element connects to the control module ... | 10/03/1989 |
| 4864287 | Apparatus and method for calibrating a motor monitor by reading and storing a desired value of the power factor A monitor for an electric motor, the monitor capable of connection to a supply of electrical energy for the motor, has a microcomputer for measuring the power factor of a voltage applied to the motor and a current flowing to the motor, for storing a desir... | 09/05/1989 |
| 4847453 | Limit switch with actuator A limit switch includes a housing which encloses a snap switch having first and second pairs of spaced fixed contacts and first and second movable contacts supported on a carrier and operated by first and second reciprocating plungers that are biased to a... | 07/11/1989 |
| 4843533 | Transient ride-through AC inverter A transient protection circuit for an inverter has a rectifier capable of supplying direct current from an alternating current power source, where protection is provided against a voltage transient in the AC power source. A DC bus is fed by the rectifier.... | 06/27/1989 |
| 4839477 | Controller having interchangeable vacuum or air break contactors and having easily serviced parts The inventions solves the problem of convenient mounting of parts of controllers, and solves the problem of interchangeability of vacuum and air break contactors within a controller. A controller has a housing, an isolation switch mounted within the housi... | 06/13/1989 |
| 4834680 | Terminal structure for a coil The invention provides a terminal for a coil. One embodiment of the invention is a housing made of molded insulating material; a projection molded into the housing; a lug made of electrically conductive material and having a recess therein for accepting t... | 05/30/1989 |
| 4831347 | Air break contactor Warping and twisting of the armature of a polyphase alternating current air break contactor is reduced by mounting the operating coil near the middle of the armature. A polyphase alternating current air break contactor has a frame, an armature having two ... | 05/16/1989 |
| 4823226 | Phase loss detection circuit including transient protection A phase loss detection circuit for a three phase electrical system providing three phase power as to a motor, the three phase electrical being subject to a phase loss condition and a transient condition is disclosed. The transient condition includes start... | 04/18/1989 |
| 4820205 | Terminal structure for a coil The invention provides a terminal for a coil. One embodiment of the invention is a housing made of molded insulating material; a projection molded into the housing; a lug made of electrically conductive material and having a recess therein for accepting t... | 04/11/1989 |
| 4812674 | Safety gate limit switch using Hall effect transducer A proximity switch has at least three Hall effect magnetic field sensitive transducers mounted in a transducer housing and has at least two magnets mounted in a magnet housing. The transucers produce logic signals, and a logic circuit responsive to these ... | 03/14/1989 |
| 4802053 | Control circuitry including phase failure relay A system for sensing the phase of a three-phase AC system and detecting phase reversal and undervoltage and phase unbalance and for providing a switching function when the system is not functioning properly.... | 01/31/1989 |
| 4797516 | Moldings for isolation switch and fuse clips An electric switch has a first molding for supporting an isolation switch and at least one line side power fuse clip, where the line fuse clip is capable of retaining a first end of a power fuse fed by the isolation switch. A second molding for supporting... | 01/10/1989 |
| 4796142 | Overload protection apparatus for emulating the response of a thermal overload A thermal overload detector and interrupter has a current transformer for monitoring load current and providing a current value signal, a microprocessor for calculating values related to load current and the thermal characteristics of a load, and an inter... | 01/03/1989 |
| 4788493 | Apparatus for detecting direction of electric power flow An apparatus for measuring the direction of power flow through conductors connecting a load to a source of alternating electric current, the load being capable of generating electric current, and the source of alternating electric current being capable of... | 11/29/1988 |
| 4785240 | Proximity switch A proximity switch including a base assembly rotatably carries a sensing head formed of a support part rotatable about one axis extending through a base assembly for positioning a sensing face on a complementary sensing part in any one of four planes para... | 11/15/1988 |
| 4755798 | Circuit for controlling a display panel A circuit for controlling a display panel identifying malfunctions in an engine generator receives a plurality of electrical signals from the engine generator, each of which identifies a particular trouble. The electrical signal may be produced by closing... | 07/05/1988 |
