Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 8139938 | Hierarchical routing query method of automatic switched optical network A hierarchical route inquiry method in Automatic Switched Optical Network is applied to the networks having multi-layer route domains. According to the method, after the route controller RC in one child domain receives the Route Request, if it can not calculate the ... | 03/20/2012 |
| 8131149 | Optical routing device and optical network using same The invention pertains to methods, apparatus, and systems optical of networking using tunable receivers, optical blocking elements selectively placed in the network, and optical routing elements comprised of passive elements, such as optical couplers and splitters. ... | 03/06/2012 |
| 8086101 | Multi-city DWDM wavelength link architectures and methods for upgrading A multi-city wavelength link architecture is used to distribute spectral bands received on input optical signals among output optical signals. Such an architecture may include an optical wavelength cross connect having multiple input ports, multiple output ports, an... | 12/27/2011 |
| 8050559 | Multi-chassis router with multiplexed optical interconnects A multi-chassis network device includes a plurality of nodes that operate as a single device within the network and a switch fabric that forwards data plane packets between the plurality of nodes. The switch fabric includes a set of multiplexed optical interconnects... | 11/01/2011 |
| 7764882 | Optical packet tray router An optical packet tray router is disclosed that manipulates a signal wavelength as the fundamental control mechanism. The disclosed optical packet tray router aggregates one or more packets in a packet tray for transmission over a network. The header information ass... | 07/27/2010 |
| 7747167 | Wavelength service providing apparatus in all-optical network An optical signal is transmitted via a transponder 13, an all-optical node 1, and a WDM device 4 including an optical filter 38. A control means which includes a route and wavelength selecting functional part 32, transmits a reques... | 06/29/2010 |
| 7715712 | System and method for implementing dynamic scheduling of data in a non-blocking all-optical switching network A non-blocking optical matrix core switching method that includes maintaining a schedule for routing data through an optical matrix core and receiving and analyzing reports from peripheral devices. The method determines whether the schedule is adequate for the curre... | 05/11/2010 |
| 7672586 | Allocating connections in a communication system Dynamic allocation of connections is performed in a communication network. When a new connection request is received by the network management system this request can be accepted or rejected. In case it is accepted, the connection can be set up by allocating new or ... | 03/02/2010 |
| 7664395 | Optical processing To operate an optical device comprising an SLM with a two-dimensional array of controllable phase-modulating elements groups of individual phase-modulating elements are delineated, and control data selected from a store for each delineated group of phase-modulating ... | 02/16/2010 |
| 7653306 | Multiple port symmetric transmissive wavelength-selective mesh node Transmissive WSS-based mesh nodes of degree N, N≧3, includes N node port apparatuses connected to provide a multiple wavelength channel signal with reciprocal connectivity between the N node ports. Each node port apparatus has an input port and N−1 output ports ... | 01/26/2010 |
| 7630635 | Channel wavelength assignment with transient reduction In an automatically switched optical network operating according to a wavelength plan, the wavelengths are assigned to an optical path based on availability, performance and SRS wavelength coupling reduction. First, the wavelengths are grouped in static bins based o... | 12/08/2009 |
| 7620322 | Load sharing nodes in a network utilising shared optical protection A method of transmitting packet traffic between first and second network nodes in a shared protection optical transmission network, the method comprising defining first and second traffic paths between said nodes, at least one of said paths being a shared protection... | 11/17/2009 |
| 7580636 | Optical switch and method for controlling optical path thereof An optical switch is provided with: an optical matrix switch; and an optical path decision section which divides input light into two branches, supplies the input light of one divided branch to the optical matrix switch, demultiplexes the input light of the other di... | 08/25/2009 |
| 7536103 | Reconfigurable optical switching system The switching system comprises a routing device having selection modules each having one input and a plurality of outputs adapted to switch spectral channels received selectively to respective outputs as a function of a command. The routing device comprises a first ... | 05/19/2009 |
| 7505686 | Highly scalable multi-granular node architecture Highly Scalable Multi-granular Node Architecture based upon strictly non-blocking waveband switch constructed around cyclic arrayed waveguide grating (AWG) routers. In one implementation, the invention includes a first N×N cyclic arrayed waveguide grating (AWG); a ... | 03/17/2009 |
| 7493041 | Optical path re-arrangement method for optical communication network When an optical path arrangement is re-arranged, the packet loss amount is reduced by judging whether to perform the shift in one stage or whether to perform the shift in two stages in accordance with the state of the network. This is implemented by an optical commu... | 02/17/2009 |
| 7428384 | Optical router According the invention, a multiplexed light composed of a signal light of a signal wavelength, and a first route control light of a first route control wavelength different from the signal wavelength or a second route control light of a second route control wavelen... | 09/23/2008 |
| 7428383 | Architecture, method and system of WDM-based photonic burst switched networks An intelligent photonic burst switched (PBS) network includes edge nodes and switching nodes. The PBS edge node includes a flow classifier, flow manager, and ingress/egress PBS MAC layer components. The flow classifier classifies information received from outside th... | 09/23/2008 |
| 7424223 | Reconfigurable wavelength blocking apparatus and optical selector device therefore An optical selector device is disclosed that includes a first arrayed waveguide grating (AWG) demultiplexing an input WDM signal and outputting demultiplexed signals on respective outputs; an array of optical shutters optically coupled to the outputs from the first ... | 09/09/2008 |
| 7421203 | Method for transmitting packet in wireless access network based on wavelength identification code scheme A method for transmitting a packet in a wireless access network based on a wavelength identification code scheme. The method comprises the steps of connecting n number of RNCs (Radio Network Controllers) to one sub-ring where the “n” is a positive integer, and a... | 09/02/2008 |
| 7415208 | Method and system for allocating bandwidth in an optical communication network A method and system for allocating bandwidth in a communication network is disclosed. Processing a request for bandwidth includes evaluating potential paths. Configuration rules and propagation rules may be applied to eliminate non-viable paths. A path quality indic... | 08/19/2008 |
| 7400832 | Resilient switch A switch for the switching of communications system signals, with m input ports and n output ports, comprising two or more parallel switch matrices, each of size m×n, combined so that each switch matrix contributes to the available output power at each output port.... | 07/15/2008 |
| 7394985 | Wavelength access server (WAS) architecture A wavelength access server (WAS) architecture provides aggregation of traffic streams of diverse data communication protocols as well as provision of wavelength resources in an optical transport network. The WAS provides functions such as service traffic adaptation,... | 07/01/2008 |
| 7389046 | Simplified switching interconnect using wavelength division multiplexing A network of spine switches and leaf switches is disclosed wherein the spine switches and leaf switches are coupled using a simplified interconnect made up of multiple signal carrying media (SCM's). In the simplified interconnect, “virtual” links are used rather... | 06/17/2008 |
| 7389018 | Arrangement for low cost path protection for optical communications networks An arrangement provides low cost path protection in an optical communications network. The arrangement has a portion 3 that provides (broadcasts) an outbound optical signal, and at least first and second transmitting portions 202, 206 transmit the outb... | 06/17/2008 |
| 7369766 | Optically boosted router Systems and techniques to optically boost a router. In general, in one implementation, the technique includes: receiving an optical signal defining a packet of data, initiating electronic routing of the optical packet, and initiating optical routing of the optical p... | 05/06/2008 |
| 7369773 | Methods and systems for polarization control and polarization mode dispersion compensation for wideband optical signals An optical processing method includes: receiving an optical signal from an optical system, wherein the optical signal is distorted by frequency-dependent polarization effects in the optical system; spatially dispersing frequency components of the distorted optical s... | 05/06/2008 |
| 7369767 | Method of determining a spectral route in an optical telecommunications network In order to determine a spectral route between a departure node (N1) and an arrival node (N6) in a WDM optical telecommunications network, the method comprises a step of determining a spatial route connecting the departure node to the arrival node, sai... | 05/06/2008 |
| 7366412 | Hybrid fine-coarse carrier switching An optical shell node is provided with an ability to perform time switching on signals received from subtending edge nodes and channel switching on signals received from other shell nodes and destined for the subtending edge nodes. The signals received from the subt... | 04/29/2008 |
| 7359598 | Surface plasmon optic devices and radiating surface plasmon sources for photolithography Disclosed is a surface plasmon optic device that has a periodic array of apertures in a dielectric substrate and a metal film formed on the dielectric substrate and emits light from metal-air interface. The surface plasmon optic device includes a surface plasmon gen... | 04/15/2008 |
| 7359635 | Optically-controlled optical network and switching node therefor The optically-switched optical network comprises information signal channels allocated for optically transmitting one or more information signals; routing signal channels allocated for optically transmitting routing signals in parallel with the information signals; ... | 04/15/2008 |
| 7356259 | Optical bypass upgrade configuration Optical bypass node upgrade configurations are disclosed: (1) a configuration where optical taps are pre-positioned in wavelength division multiplex (WDM) line systems terminating at optical-electrical-optical (OEO) core switching nodes to allow for future upgrade o... | 04/08/2008 |
| 7349157 | Optical splitting device and optical communication terminal comprising such a device An optical splitting device is intended to receive at an input two beams of different wavelengths. The device includes a polarizing beam splitter designed to selectively transmit part of the beam having one of the wavelengths towards a first output or a second outpu... | 03/25/2008 |
| 7349594 | Bidirectional wavelength cross connect architectures using wavelength routing elements Bidirectional wavelength cross connects include a plurality of ports, each configured to receive an input optical signals, each input optical signal having a plurality of spectral bands. At least one of the plurality of ports is disposed to simultaneously transmit a... | 03/25/2008 |
| 7343096 | Method and apparatus for in-service upgrading of OADM to wavelength selective switch of higher degree System and methods for upgrading an optical add-drop multiplexer (OADM) to higher degree wavelength selective router (WSR)/wavelength selective switch (WSS) are disclosed. For example, an OADM of degree-2 may be provisioned for upgrades to degree-3 and higher. The e... | 03/11/2008 |
| 7340174 | Programmable OADM with chromatic dispersion, dispersion slope and amplitude ripple compensation, and method A programmable optical add/drop multiplexer (OADM) implements add/drop function of optical signals from a number of cross-connected optical systems while treating issues of coherent cross-talk, chromatic dispersion, slope of dispersion and amplitude equalization. In... | 03/04/2008 |
| 7340175 | Non-uniform optical waveband aggregator and deaggregator and hierarchical hybrid optical cross-connect system Hierarchical hybrid optical networking is based on balancing cost and performance of optical networks by providing transparent (optical) switching of subsets of wavelengths in addition to opaque (electrical) switching of individual light paths. Effective use of wave... | 03/04/2008 |
| 7340169 | Dynamic route discovery for optical switched networks using peer routing An architecture and method for performing dynamic route discovery and time slot reservation provisioning within optical-switched networks. The method employs extensions to the RSVP-TE signaling protocol, which uses various messages to reserve resources. Under a peer... | 03/04/2008 |
| 7332234 | Optoelectronic device capable of participating in in-band traffic An optoelectronic device that has a network address (e.g., IF address) and participates in in-band traffic for purposes of performing functions (e.g., network diagnostics, network control, network provisioning, fault isolation, etc.) that are traditionally performed... | 02/19/2008 |
| 7330617 | Wavelength selective optical switch, and optical device provided with spectroscopic function A wavelength selective optical switch of the present invention separates a WDM light emitted from an input port of an input and output optical system, according to wavelengths, by a diffraction grating, and thereafter, condenses the lights of respective wavelengths ... | 02/12/2008 |
