Quotables
"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 8005359 | Network element for signals of the optical transport network (OTN) A crossconnect for asynchronous OTN signals operates synchronously internally at an internal clock rate. Received OTN signals are synchronized to an internal frame format by stuffing. The synchronized signals are parallelized and switched with a switching matrix com... | 08/23/2011 |
| 7945162 | Method and apparatus for accommodating different switch matrix granularities in optical networks A method is disclosed for replacing legacy interfaces of add drop ring optical networks using STS-3 granularity with an optical hub using STS-1 granularity. In order to avoid locking up ports on the optical hub with dedicated STS-3 packages, a signal broadcast featu... | 05/17/2011 |
| 7912371 | Optical transmission device, optical transmission method, and computer product An optical transmission device includes an input interface unit, a cross-connecting unit, and an output interface unit, and a bandwidth switching control unit, and switches bandwidths allocated to paths in a transmission channel that connects to an adjoining optical... | 03/22/2011 |
| 7848650 | Device and method of swapping optical labels and reproducing optical payload and optical switching device using the device In a conventional network for transmitting an optical burst signal, it is impossible to effectively swap labels, reproduce a payload signal, and switch and transmit the signals. A device for swapping optical labels and reproducing an optical payload, includes: an en... | 12/07/2010 |
| 7826742 | Optical transmission device, optical transmission method, and computer product An optical transmission device includes an input interface unit, a cross-connecting unit, and an output interface unit, and a bandwidth switching control unit, and switches bandwidths allocated to paths in a transmission channel that connects to an adjoining optical... | 11/02/2010 |
| 7747168 | Multi switching architecture and method in optical burst switching network An optical burst switching network is provided that includes an edge node transmitting burst data including a plurality of packets; and a core node optically switching received burst data or converting the received burst data into an electric signal and electrically... | 06/29/2010 |
| 7394983 | Method and apparatus for detecting optical switch fault by monitoring optical output transitions Provided are a method and an apparatus for detecting the fault of an optical switch. The apparatus includes an optical monitoring signal generator, a coupler, a splitter, a plurality of optical detecting and output power transition sensing units, and a fault determi... | 07/01/2008 |
| 7394824 | System and method of transmitting variable length packet by sequential allocation of permission and monitoring response detection time period In a system including a parent station and a plurality of child stations connected only to the parent station, which is unable to detect a response among the plurality of child stations, the parent station includes a transmission permission sequential allocation mec... | 07/01/2008 |
| 7380993 | Optical transceiver for 100 gigabit/second transmission An optical transmitter for converting and coupling an information-containing electrical signal with an optical fiber having an electrical input for coupling with an external electrical cable or information system device having a plurality of parallel data lines, a m... | 06/03/2008 |
| 7372812 | Proxy FC port, FC network system, and FC transfer method used therefor Proxy FC ports in an FC network are connected between first and second FC (Fibre Channel) devices having reception buffers and first and second FC transfer apparatuses connected to each other through a WAN (Wide Area Network). The proxy FC ports transfer signals to ... | 05/13/2008 |
| 7366413 | Modular cross connect system with 3D-MEMS for optical telecommunication networks A modular cross connect system for optical telecommunication networks has the optical unit divided in at least two main bodies with one section for connection comprising the collimators and a main commutation section with MEMS devices. The first section is a fixed p... | 04/29/2008 |
| 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 |
| 7340167 | Fibre channel transparent switch for mixed switch fabrics A method and a Fibre Channel switch element are provided that allows communication between a host system and a target device attached to a proprietary switch fabric in a network. The Fibre Channel switch element includes a first port that communicates with the targe... | 03/04/2008 |
| 7340172 | Optical WDM-TDM network An optical WDM-TDM network includes a plurality of devices, each of the devices including at least one optical add/drop device adapted to drop optical signals of at least one channel of a plurality of received channels and pass through the remaining channels, at lea... | 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 |
| 7313329 | All optical variable buffer queue useful in optical packet networks A variable optical buffer queue, particularly useful either as an input or an output queue in an optical packet router in a wavelength-division multiplexing (WDM) communication network. An input queue includes plural separately controllable optical delay units dispo... | 12/25/2007 |
| 7313327 | Switching control device for wavelength-division multiplexing optical signal In a WDM optical communication network composed of a transmitter, an optical switching device (an optical cross-connect, an optical router, etc.) and a receiver, when transmitting switching information to the optical switching device, the transmitter suspends the tr... | 12/25/2007 |
| 7301906 | Methods and structures for improved buffer management and dynamic adaption of flow control status in high-speed communication networks Methods and structure for standardized, high-speed serial communication to reduce memory capacity requirements within receiving elements of a high-speed serial communication channel. In an exemplary SPI compliant embodiment of the invention, the semantic meaning of ... | 11/27/2007 |
| 7272310 | Generic multi-protocol label switching (GMPLS)-based label space architecture for optical switched networks An architecture and method for performing coarse-grain reservation of lightpaths within wavelength-division-multiplexed (WDM) based photonic burst switched (PBS) networks with variable time slot provisioning. The method employs a generalized multi-protocol label swi... | 09/18/2007 |
| 7272312 | Optical router An optical router for selecting optical paths for optical signals and outputting the optical signals. The optical router includes an optical delay device to delay the optical signals containing routing information in a header. An optical switch having input ports' a... | 09/18/2007 |
| 7266295 | Modular reconfigurable multi-server system and method for high-speed networking within photonic burst-switched network A modular reconfigurable multi-server system with hybrid optical and electrical switching fabrics for high-speed networking within a wavelength-division-multiplexed based photonic burst-switched (PBS) network with variable time slot provisioning. An optical high-spe... | 09/04/2007 |
| 7262905 | Optical amplifier An optical amplifier includes a first optical path, second optical path, semiconductor optical amplifier, and multi-mode interference 3-dB coupler. The first optical path guides oscillation light. The second optical path guides signal light. The semiconductor optica... | 08/28/2007 |
| 7263476 | High speed information processing and mass storage system and method, particularly for information and application servers A high speed, microcomputer based, Fibre Channel compatible and fault tolerant information processing and mass storage system especially suited for information servers and application servers. A unique and extremely versatile system architecture, including a dual lo... | 08/28/2007 |
| 7263288 | Optical routing using a star switching fabric In one embodiment, a router includes a plurality of line cards each operable to receive at least one packet comprising an identifier associated with a destination element external to the router. Each line card includes a look-up table operable to facilitate routing ... | 08/28/2007 |
| 7263066 | Switch fabric backplane flow management using credit-based flow control A credit-based system and method are provided for managing backplane traffic flow in a packet communications switch fabric. The method comprises: accepting information packets including cells and cell headers with destination information; modifying the destination i... | 08/28/2007 |
| 7260329 | All optical time division multiplexer and packet switch using optical codewords and optically actuated optical switches Optical apparatus that uses optically-actuated optical switches in conjunction with an optical codeword addressing scheme to provide for time division multiplexing and demultiplexing of high data rate optical data. Optical codewords traveling simultaneously with the... | 08/21/2007 |
| 7242867 | Optical cross connect synchronization architecture and method A synchronization architecture for a cross connect switch having an ingress stage, a center stage, and an egress stage utilizes optical interfaces and media to distribute a system clock and frame sync to the I/O modules and switch fabric so that system can reassign ... | 07/10/2007 |
| 7236709 | Multi-input wavelocker for controlling laser wavelengths of multiple lasers Techniques for coupling output laser beams from multiple lasers into multiple fibers and using a collimating lens and a steering mirror to individually couple the laser beams from the fibers to a laser control system. ... | 06/26/2007 |
| 7209658 | Time division multiplex and wavelength division multiplex optical switching node The invention relates to a time division and wavelength division multiplex optical switching node for use in an optical communications network (2), which node combines a set of time division multiplex packets (8-1, 8-2, . . . , 8-i) into ... | 04/24/2007 |
| 7209451 | Apparatus and method for efficient detection and suppression of corrupted fibre channel frames in a protected transmission medium An apparatus and method for detecting and suppressing corrupted data frames transported from a SONET network to a receiver utilizing the SOF frame indicator to manage the buffer-to-buffer credit count. By verifying the integrity of the SOF frame indicator prior to f... | 04/24/2007 |
| 7206509 | Method and apparatus for temporally shifting one or more packets using wavelength selective delays A method and apparatus are disclosed for temporally shifting one or more packets using wavelength selective delays. The header information associated with each packet, together with a routing algorithm, routing topology information and internal OPTR state, is used t... | 04/17/2007 |
| 7177546 | Time division multiplexed optical wireless point-to-multipoint links A system for time-dividing an optical signal is provided. The system time-divides a signal and reflects and/or refracts the signal using a time-dividing device to multiple receivers. By using time-division, the full signal is sent to each receiver designated to rece... | 02/13/2007 |
| 7177309 | Packet switching equipment and switching control method A packet switching equipment and a switch control system employing the same performs operation of the switch core portion independent of content of decision of an arbiter portion and overall equipment can be constructed with simple control structure. The packet swit... | 02/13/2007 |
| 7174101 | Optical switching method and system therefor A method capable of optical packet switching even in a case where physical optical data in an optical packet switch has not the shape of a packet but the shape of continuous data, and a system therefore are provided. The optical switching method includes the steps o... | 02/06/2007 |
| 7164858 | Optical transmission system and optical transmitter used therein An optical transmission system is provided with a broadband optical transmitter including a broadband light source and a broadband optical modulator, an optical filter, an optical modulator, a transmission path, a wavelength router, and an optical receiver. The broa... | 01/16/2007 |
| 7149432 | Method and apparatus for equalization across plural data channels Optical equalization across N (an integer, N>1) channels of a multi-channel link of a communications network, is accomplished by averaging effects of optical performance variations within each of the M (an integer, M>1) parallel data signals. At a transmitting end n... | 12/12/2006 |
| 7149427 | Cooperating array of micromirror devices for wireless optical communication A micromirror array assembly (10, 20) for use in optical modules (5, 17) in a wireless network system is disclosed. The micromirror array assembly (10, 20) includes a plurality of mirrors (29) monolithically formed with a frame (43... | 12/12/2006 |
| 7136587 | System and method for providing simulated hardware-in-the-loop testing of wireless communications networks A system and method for efficiently and effectively simulating hardware-in-the-loop testing of a wireless communications network. The system and method employs an optical matrix-vector multiplier (MVM) for performing optical signal processing to simulate radio frequ... | 11/14/2006 |
| 7136593 | Wavelength-division multiplexed optical transmission system A wavelength-division multiplexed optical transmission system to keep the correlation of data patterns among wavelength channels to the low level, preventing large XPM and XGM from occurring when the correlation is strong, and assuring a stable transmitting quality.... | 11/14/2006 |
| 7133616 | Wavelength-selective routing using an optical add/drop architecture A wavelength-selective routing capability is provided in a single network element by configuring the network element using a combination of add/drop network elements to route individual optical channels of WDM signals among a plurality of optical transmission paths ... | 11/07/2006 |
