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| Number | Title | Issue Date |
| 7592894 | Reconfigurable switch having an overlapping Clos Architecture A data-communications switch having at least two modes of operation is provided. The data communications switch includes a first Clos switch having a first mode of operation and a second Clos switch, which is combined with the first Clos switch, for providing a seco... | 09/22/2009 |
| 7424011 | Rearrangeably nonblocking multicast multi-stage networks A rearrangeably nonblocking multicast network includes an input stage having r1 switches and n1 inlet links for each of r1 switches, an output stage having r2 switches and n2 outlet links for each of r2 | 09/09/2008 |
| 7424010 | Strictly nonblocking multicast multi-split linear-time multi-stage networks In one embodiment, a controller is configured to establish a new multicast connection within a network without changing a path of an existing multicast connection within the network. The network can have an input stage having a total of at least n1*r... | 09/09/2008 |
| 7378938 | Strictly nonblocking multicast multi-stage networks A three-stage network is operated in strictly nonblocking manner and includes an input stage having r1 switches and n1 inlet links for each of r1 switches, an output stage having r2 switches and n2 outlet links ... | 05/27/2008 |
| 7362769 | Fibre channel arbitrated loop bufferless switch circuitry to increase bandwidth without significant increase in cost A switch, switched architecture and process for transferring data through an FCAL switch is disclosed. The switch uses multiple switch control circuits each coupled to one FCAL network and all connected to a crossbar switch. The switch control circuits are coupled t... | 04/22/2008 |
| 7356025 | Switching apparatus for switching data between bitstreams An apparatus for switching data between a first set of bitstreams and a second set of bitstreams, each of said bitstreams being divided into recurring frames and each of said recurring frames being divided into time slots, is disclosed. The switch comprises a first ... | 04/08/2008 |
| 7342922 | Multi-stage switching for networks Techniques for multi-stage switching in network elements are provided. The switching fabric can include three stages and as connections are being made through the stages, the connections are selected to minimize the difference in the number of signals between differ... | 03/11/2008 |
| 7293127 | Method and device for transmitting data using a PCI express port A data port operates to support symmetric PCI Express-type data transfers when in a first mode of operation. When in a second mode of operation, at least a portion of the data port connections are used to support an asymmetric PCI Express-type data transfer. The asy... | 11/06/2007 |
| 7274689 | Packet switch with one-stop buffer in memory with massive parallel access A broadband packet switch that handles all packets that arrive within the same frame time by simultaneously bit-pipelining the packets into different sections of the one-stop packet buffer through an input switch. Each packet remains in is selected section until its... | 09/25/2007 |
| 7248760 | Optical switch fabric with redundancy An optical switch fabric with an input stage, an output stage, and a center stage coupled in a cascaded manner. The center stage includes (1) a minimum number of center switches greater than one that cause the optical switch fabric to be strict-sense nonblocking and... | 07/24/2007 |
| 7206283 | High-performance network switch The present invention provides a high-performance network switch. A digital switch has a plurality of blades coupled to a switching fabric via serial pipes. Serial link technology is used in the switching fabric. Each blade outputs serial data streams with in-band c... | 04/17/2007 |
| 7203194 | Method and system for encoding wide striped cells A system and method for encoding wide striped cells that carry packets of data across stripes. The method encodes an initial block of a first wide striped cell is encoded with initial cell encoding information, and distributes initial bytes of packet data into avail... | 04/10/2007 |
| 7187687 | Pipeline method and system for switching packets A switching device comprising one or more processors coupled to a media access control (MAC) interface and a memory structure for switching packets rapidly between one or more source devices and one or more destination devices. Packets are pipelined through a series... | 03/06/2007 |
| 7177301 | Signal permuting A method of constructing a permuting network. A configuration for layers of a permuting network is selected based on a set of integer factors of N, the number of signals to be permuted, and on pre-selected types of switches. The permuting network is constructed in l... | 02/13/2007 |
| 7177284 | Inverse multiplexer device The inverse multiplexer device for inverse multiplexing of a broadband data stream received via a broadband data line (7) comprising measuring means (3a–6a) for measuring connection parameters of data transmission lines (3–6... | 02/13/2007 |
| 7154887 | Non-blocking grooming switch A grooming switch comprises plural input ports for receiving multi-time-slot input signals and plural output ports for forwarding multi-time-slot output signals. At least five switching stages alternate between time switching and space switching. The first stage is ... | 12/26/2006 |
| 7120328 | Scalable, modular, strictly non-blocking electro-optical cross connect core An OXC core uses electronic and/or optical switch elements as building blocks and a three stage interconnection architecture according to Clos theorem (Clos configuration), to achieve the strictly non-blocking condition. The hardware architecture of the OXC core is ... | 10/10/2006 |
| 7111073 | Apparatus for estimating delay and jitter between network routers A delay measurement technique according to an embodiment according to the present invention is based on the precept, ascertained by the inventors, that a link between network nodes will often contribute to the delay encountered between several different pairs of net... | 09/19/2006 |
| 7106728 | Switching by multistage interconnection of concentrators A method and apparatus for performing switching by multistage interconnection of switching elements with improved performance and low layout complexity is disclosed. The techniques of line grouping, concentrators, self-route control through sorting are applied to re... | 09/12/2006 |
| 7103764 | Parallel port with direct memory access capabilities The parallel or printer port in a personal computer can receive data from the memory under the control of the direct memory access (DMA) controller, releasing processor resources. The processor enables the parallel port, which then indicates to the DMA controller th... | 09/05/2006 |
| 7103059 | Scalable 2-stage interconnections Modifications to the 2-stage interconnection to allow flexible scalability. Different switching fabrics having a range of different sizes can be constructed out of the same set of I/O switching nodes through this modified 2-statge interconnection, which can further ... | 09/05/2006 |
| 7099314 | General self-routing control mechanism over bit-permuting switching networks A self-routing switching network composed of sorting cells interconnected as a bit-permuting network and, in particular, as a banyan-type network, and the concomitant general self-routing control mechanism for routing packets over such networks. The self-routing mec... | 08/29/2006 |
| 7072334 | Physical implementation of switching fabrics constructed from recursive 2-stage interconnection Physical implementation of the switching fabric of a massive broadband switching network constructed from recursive 2-stage interconnection. The recursive 2-stage construction is realized through a hierarchical levels of implementation, including inside-chip impleme... | 07/04/2006 |
| 7065074 | Generalized divide-and-conquer networks A generalized divide-and-conquer network and concomitant methodology for recursively constructing large-scaled switching fabrics to meet the need for present-day broadband switching. Such a network achieves optimal layout complexity among the class of banyan-type ne... | 06/20/2006 |
| 7065076 | Modular scalable switching networks An embodiment of the present invention is disclosed to include a three stage scalable switching network that can be built from a common module. Further disclosed are methods for building switching network v(k, n, m) from a common module comprising a (n×k) input swi... | 06/20/2006 |
| 7039065 | Telecommunications rack including shelves with nonredundant backplanes used redundantly A telecommunications rack has one or more shelves connected to a narrowband network and to a broadband network for serving a plurality of subscribers. Line termination and network termination equipment are interconnected by a bus internal to the shelf for providing ... | 05/02/2006 |
| 7035204 | Method and apparatus for rerouting telecommunications signals The present invention discloses a method and apparatus for rerouting high-speed telecommunications signals within a network element (NE). Data circuits are defined as the interface cards within the NE that receive a particular data stream. In the event that one or m... | 04/25/2006 |
| 7031303 | Conditionally nonblocking switch of the upturned decompressor type Broadband switching including the implementation of and control over a massive sub-microsecond switching fabric. To effect the attributes of the switching fabric, conditionally nonblocking components are used a building-blocks in an interconnection network which is ... | 04/18/2006 |
| 7023841 | Three-stage switch fabric with buffered crossbar devices A switch fabric for routing data has a switching stage configured between an input stage and an output stage. The input stage forwards the received data to the switching stage, which routes the data to the output stage, which transmits the data towards destinations.... | 04/04/2006 |
| 7020135 | Rearrangeable switch having a non-power of two number of physical center stages A switch is provided that includes three stages. The first stages has a plurality of switch circuits. The second stage has a plurality of switch circuits equal to N, where N is any integer other than a power of 2 and where the switch circuits can be logically config... | 03/28/2006 |
| 7013361 | Routing switcher with variable input/output architecture Conventional routing switchers have employed a fixed architecture, i.e. the input and output connectors of the switching matrix are fixed in function. Prior art routing switchers use fixed matrix sizes. This invention uses a variable input/output architecture to ena... | 03/14/2006 |
| 6999466 | Switching concentrator An m-to-n concentrator constructed from smaller concentrator/sorters wherein m is not necessarily equal to 2n. For instance, the m-to-n concentrator can be implemented from an └m/2┘-to-n concentrator/sorter, an ┌m12┐-to-n concentrator/sorter, and n sorting c... | 02/14/2006 |
| 6993017 | Switch apparatus The present invention refers to an apparatus for time and space switching data from a first and a second input signal to a first and a second output signal, said apparatus comprising at least four switch elements, each having a first and second input port and an out... | 01/31/2006 |
| 6965299 | High-speed, low-power crossbar switch In a crosspoint switch, both input buses and output buses are driven at low swing. Self-timed, differential, push-pull, low swing driver circuits drive the input buses and are provided in the crosspoints to drive the output buses. Clocked, regenerative sense amplifi... | 11/15/2005 |
| 6914902 | Distributed semi-rearrangeable non-blocking algorithm for clos networks A marching algorithm for the selection of middle stage switch elements in a network uses an arbitrary but settled sequence in which middle stage switch elements are sampled. The sequence is applied in the forward direction to find an appropriate middle stage switch ... | 07/05/2005 |
| 6868084 | Strictly nonblocking multicast multi-stage networks A three-stage network is operated in strictly nonblocking manner in accordance with the invention includes an input stage having r1 switches and n1 inlet links for each of r1 switches, an output stage having r2 switches an... | 03/15/2005 |
| 6838977 | Apparatus for manufacturing management using a wireless device A method of inventory management is described. Upon activation of a button on a wireless device, the wireless device having a light source and a transceiver with a unique media address corresponding to a unique product, the device broadcasts a first signal including... | 01/04/2005 |
| 6696917 | Folded Clos architecture switching A novel folded Clos switch apparatus and method therefore for reducing the number of unemployed I/O terminals of a multistage Clos switching network by partitioning a crossbar switch to provide both the first (yth) and last (x-y+1th) stage of a multistage... | 02/24/2004 |
| 6614904 | Apparatus and method for effecting a communication arrangement between switch arrays An apparatus is disclosed for effecting a communication arrangement of a plurality of communication circuits between first connection loci of a first switch array and second connection loci of a second switch array. The apparatus comprises: (a) a first co... | 09/02/2003 |
| 6393019 | Matrix switch A matrix switch comprises a matrix switch main body (2), a preprocessing block (1) provided on an input side of the matrix switch main body (2), and a postprocessing block (3) provided on an output side of the matrix switch main body (2), wherein each of ... | 05/21/2002 |
