Class / Patent application number | Description | Number of patent applications / Date published |
398046000 | Hybrid | 26 |
20100086300 | METHOD AND DEVICE FOR MAPPING ETHERNET CODE BLOCKS TO OTN FOR TRANSMISSION - A method and a device for mapping Ethernet code blocks to an optical transport network (OTN) for transmission are provided. According to a preset mapping manner, 40 Gigabit (40 G) Ethernet code blocks are mapped to a payload area of a general frame provision (GFP) frame, or a plurality of 40 G Ethernet code blocks is interleaved into a payload area of an OTN frame, or 40 G Ethernet code blocks are mapped to an OTN frame according to an asynchronous bit-stream mapping manner. Thus, specific solutions for mapping 40G Ethernet code blocks having an encoding rate lower than a minimum payload bandwidth of the OPU3 to the OTN for transmission is provided. | 04-08-2010 |
20100329676 | METHOD, AND SYSTEM FOR A RE-CONFIGURABLE OPTICAL MULTIPLEXER, DEMULTIPLEXER AND OPTICAL ADD-DROP MULTIPLEXER - A system for a re-configurable optical de-multiplexer, multiplexer or add/drop multiplexer is provided. A re-configurable de-multiplexer system comprises a wavelength selective switch having an input port, an output port and an internal port; a wavelength division de-multiplexer (WDM) optically coupled to the internal port and a plurality of dropped-channel ports optically coupled to the WDM. The wavelength selective switch receives a plurality of input wavelength-division multiplexed channels from the input port and routes a first subset of the channels to the output port and a second subset of channels to the internal port and then to the WDM. The WDM separates each of the dropped channels to a different respective one of the channel ports. | 12-30-2010 |
20120039604 | PRIORITY DATA TRANSMISSION USING FIBRE CHANNEL OVER ETHERNET - An apparatus, system, and method are disclosed for handling data being communicated over lossless Ethernet that is sensitive to delays. Fibre Channel over Ethernet (FCoE) is one example of an environment where data may be subject to unacceptable delays. The method involves designating certain data as low latency data that is sensitive to delays in transmission. The low latency data is then transmitted in such a manner that the receiving devices are aware that they are receiving low latency data. If a delay in the transmission of low latency is detected, commands are issued that pause or slow standard data in order to free up bandwidth for the low latency data. The commands may be, for example, backward congestion notifications and priority flow control. Low latency data is exempted from backward congestion notifications and priority flow control. Priority | 02-16-2012 |
20120219291 | CROSS-CONNECT SYSTEM AND CROSS-CONNECT METHOD - A cross-connect system includes a mapping unit that maps second signal frames on which cross-connection is performed with a space switch, into third signal frames on which cross-connection is performed with the space switch and a time switch; a selection unit that selects either first signal frames on which cross-connection is performed with the space switch and the time switch and corresponding clock signals, or the third signal frames and corresponding clock signals; a cross-connection unit that receives either the first signal frames and corresponding clock signals or the third signal frames and corresponding clock signals selected by the selection unit and performs cross-connection for either the first signal frames or the third signal frames; and a demapping unit that demaps the third signal frames output from the cross-connection unit into the second signal frames and output the second signal frames. | 08-30-2012 |
20120243868 | HIGH CAPACITY SWITCHING SYSTEM - The present invention provides a high capacity switching system for use in a transport network, which contains a number of input/output subsystems and a central interconnection means configurably interconnecting the input/output subsystems. The subsystems have input/output line modules for receiving and transmitting data signals to and from transmission lines of the network, one or more link modules connecting the subsystems to the interconnection means, and local switching means switching data signals in time and space domain between the input/output modules and the one or more link modules within one subsystems. The link modules are adapted to aggregate data signals from different input/output line modules of the same input/output subsystems and destined to input/output line modules of another one of said input/output subsystems into signal bursts and add a payload gap to each signal burst. The switching system further has a scheduler which configures the interconnection means during the payload gaps to switch the signal bursts to their destination subsystems. | 09-27-2012 |
20130183034 | Method and Apparatus of Using Digital Equalizer for Cascaded Wavelength Selective Switch Compensation - An apparatus comprising a frequency-domain equalizer that has been iteratively generated to compensate for filtering effects of a wavelength selective switch, wherein the FDEQ is configured to process in a frequency domain digital samples of a polarization multiplexed phase-shift-keying signal that has been transported over an optical channel. | 07-18-2013 |
20140178068 | SPACE SWITCH DEVICE - Disclosed is a spatial switching apparatus having a plurality of input terminals, an input optical signal of a single wavelength being input to each of the plurality of the input terminals, and a plurality of output terminals an output optical signal of a single wavelength being output from each of the plurality of the output terminals. The apparatus includes a signal wavelength converting portion having an electric signal converting element converting the input optical signal into an electric signal and a variable wavelength laser, the signal wavelength converting portion using the variable wavelength laser to convert an electric signal converted by the electric signal converting element into an optical signal of an arbitrary wavelength; and a spatial switching portion having a plurality of first cyclic AWGs performing output from a plurality of output ports corresponding to wavelengths of a plurality of input signals input from the variable wavelength laser. | 06-26-2014 |
20140270764 | CONTROL PLANE FOR INTEGRATED SWITCH WAVELENGTH DIVISION MULTIPLEXING - A method of controlling optical data flow in a network is provided. The method includes: receiving, by a switch controller, a data flow including a plurality of data packets used for network management and control, the network switch including at least one wavelength tunable optical data transmission interface to a wavelength division multiplexed optical network; transmitting a control signal indicating which wavelengths are in use and which wavelengths are not in use to the network switch over a control link; receiving a return signal generated by an optical filter in the switch, the return signal indicative of an available wavelength for transmission of the data flow to the switch; allocating a data traffic flow to the available wavelength, and communicating the allocation decision to the network switch; and transmitting the data flow to the switch via an optical carrier signal having the available wavelength indicated by the return signal. | 09-18-2014 |
20150037028 | ADAPTIVE DISTRIBUTED ANTENNA SYSTEM CAPABLE OF LOAD BALANCING - An adaptive distributed antenna system comprises a control module coupled between multiple base stations, and multiple antenna groups, each of which includes multiple antenna devices each coupled to the control module via a transmission line, and operable to convert an external wireless signal and a transmitting signal from the transmission line respectively into a receiving signal and a signal to be radiated. The control module converts a downlink signal from any base station and the receiving signal from any transmission line respectively into the transmitting signal and an uplink signal. The control module is configured to establish a transmission link between one base station and one antenna device of the antenna groups. | 02-05-2015 |
20150358698 | WAVELENGTH SELECTIVE SWITCH - A wavelength selective switch includes an input/output unit that has a first port group including a first input port and a first output port and a second port group including a second input port and a second output port; a wavelength dispersion element that disperses wavelength multiplexing light in wavelength components; a deflection element that deflects a direction of an incident beam; and an optical system that optically couples the input/output unit, the wavelength dispersion element, and the deflection element along a predetermined axis. The optical system includes an optical component, a first input beam input from the first input port is inclined at a first angle to the predetermined axis and is incident on the optical component, and a second input beam input from the second input port is inclined at a second angle to the predetermined axis and is incident on the optical component. | 12-10-2015 |
398047000 | Time and wavelength | 16 |
20090129775 | OPTICAL PACKET SWITCHING APPARATUS AND METHODS - An optical packet switch switches optical packets according to bit-rates at which the optical packets are provided. For example, optical packets that are received at similar bit-rates may be routed to a destination at separate time slots over a single channel wavelength, and optical packets that are received at different bit-rates may be routed to the destination over separate channel wavelengths. When optical packets are provided at different bit-rates on a plurality of input paths, optical packets provided at low bit-rates may be compacted before switching to the destination. Alternatively or additionally, the bit-rates of the optical packets may be balanced before switching to the destination. Bandwidth contention among optical packets may be resolved by polarizing optical packets originating from separate input paths in different polarization directions, and merging optical packets having different polarization directions onto a single switched channel wavelength. Compaction of optical packets may alternatively be employed for resolution of bandwidth contention. Related apparatus and methods are also described. | 05-21-2009 |
20120033968 | OPTICAL COMMUNICATIONS NETWORK NODE AND METHOD OF CONTROLLING DATA TRANSMISSION BETWEEN OPTICAL COMMUNICATIONS NETWORK NODES - An optical communications network node ( | 02-09-2012 |
20120063777 | OPTICAL PATH SWITCHING SIGNAL TRANSMISSION/RECEPTION APPARATUS AND CORRESPONDING METHOD - An optical path switching type optical signal transmission/reception apparatus includes a one-to-seven compatible optically controlled optical path switching apparatus | 03-15-2012 |
20130039656 | MIGRATABLE WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK - A hybrid passive optical network (“PON”) includes a time-division multiplexing (“TDM”) optical line terminal (“OLT”) and a wavelength-division multiplexing (“WDM”) OLT. The TDM OLT communicates with a first group of customer premises (“CPs”) via TDM signals while the WDM OLT communicates with a second group of CPs via WDM signals. A remote node power splitter is coupled to receive the TDM and WDM signals and broadcast both the TDM signals and the WDM signals on all of its ports facing towards the CPs. Optical filters are disposed between the remote node power splitter and the second group of CPs. Each optical filter is configured to pass a sub-group of the WDM signals while blocking other WDM signals such that each of the second group of CPs receives its own allocation of WDM signals but does not receive WDM signals allocated to other CPs of the second group of CPs. | 02-14-2013 |
20130243429 | PHOTONICALLY-ENABLED IN-FLIGHT DATA REORGANIZATION - Data locality constraints are alleviated by a data processing system and method of reorganizing data. Multiple electronic components are configured to modulate a light beam on a shared photonic interconnect and to detect the data according to a global schedule to reorganize data across the multiple electronic components. By constructing data transfer patterns in a shared photonic interconnect, rather than in dedicated reorganization hardware, data is reorganized while in transit, greatly accelerating the reorganization of data, and reducing the amount of power-consuming hardware necessary to achieve the task. | 09-19-2013 |
20130330076 | Methods and Devices for Space-Time Multi-Plane Optical Networks - Scalability and energy efficiency are key issues in data centers imposing tight constraints on the networking infrastructure connecting the servers. Optical interconnection mitigates electronic limitations but the additional flexibility offered by WDM and datarate across a data center interconnection network requires architectural design, photonic technologies, and operating strategies be selected and optimized to meet power consumption requirements. Multi-plane architectures based upon space-wavelength domain architectures have been proposed to overcome scalability limitations. It would be beneficial to extend space and time switching domains with the wavelength domain for additional capacity to increase throughput as well as providing same electro-optic interface. Accordingly, the inventors have established space-time domain interconnection network architectures with wavelength domain overlay overcoming power consumption issues, especially at low utilization, by exploiting all-optical implementations with active elements which act simultaneously as a switch and an amplifier, and the possibility to remain in an idle state when unused. | 12-12-2013 |
20140308037 | Optical Network Switching Using N:N Transponder Through Time-Domain Multiplexing and Burst Mode Access - A network switch is disclosed with each port having the function of: electrical processing and optical modulation; electrical processing has the ability to identify packet or frame destination; burst mode transmission and receiving capability; uses its pre-assigned time slot to send to the corresponding destination, or receive from the expected source. | 10-16-2014 |
20150131991 | OPTICAL NETWORK SYSTEM, OPTICAL SWITCH NODE, MASTER NODE, AND NODE - An optical network system includes a master node and a plurality of optical switch nodes, allowing the number of nodes without depending on the number of wavelengths. The master node is configured to: divide a wavelength path having an arbitrary wavelength into time slots each having a predetermined time period; and allocate the time slots to each of the optical switch nodes. Each of the optical switch nodes is configured to: synchronize the time slots based on information delivered from the master node; and thereby transmit or receive a data or performs route switching. | 05-14-2015 |
20150372781 | HIGH CAPACITY FIBER-OPTIC INTEGRATED TRANSMISSION SYSTEMS - A high capacity node includes a plurality of transceivers each with a transmitter configured to support a wavelength within a full transparent window of one or more optical fibers; and one or more optical amplifiers covering the full transparent window, wherein the one or more optical amplifiers comprise one of (i) a single ultra-wideband amplifier covering the full transparent window and (ii) a plurality of amplifiers each supporting a different band of the full transparent window. | 12-24-2015 |
20150372931 | Time Slot Allocation for Burst Switched Network - Anode for burst switching of traffic flows in an optical network switches bursts of traffic flows in different time slots. Time slots are allocated ( | 12-24-2015 |
20150373432 | Spectral-Temporal Connector for Full-Mesh Networking - A spectral-temporal connector interconnects a large number of nodes in a full-mesh structure. Each node connects to the spectral-temporal connector through a dual link. Signals occupying multiple spectral bands carried by a link from a node are de-multiplexed into separate spectral bands individually directed to different connector modules. Each connector module has a set temporal rotators and a set of spectral multiplexers. A temporal rotator cyclically distributes segments of each signal at each inlet of the rotator to each outlet of the rotator. Each spectral multiplexer combines signals occupying different spectral bands at outlets of the set of temporal rotators onto a respective output link. Several arrangements for time-aligning all the nodes to the connector modules are disclosed. | 12-24-2015 |
20150382089 | DYNAMIC INTELLIGENT BIDIRECTIONAL OPTICAL ACCESS COMMUNICATION SYSTEM WITH OBJECT/INTELLIGENT APPLIANCE-TO-OBJECT/INTELLIGENT APPLIANCE INTERACTION - Reduced Rayleigh backscattering effect enables a longer-reach optical access communication network-thus it eliminates significant costs. Furthermore, a wavelength to an intelligent subscriber subsystem can be dynamically varied for bandwidth on-Demand and service on-Demand. A software module renders intelligence (and context awareness) to a subscriber subsystem and an appliance. An object can sense/measure/collect/aggregate/compare/map and connect/couple/interact (via one or more or all electrical/optical/radio/electro-magnetic/sensor/bio-sensor communication network(s) within and/or to and/or from an object) with another object, an intelligent subscriber subsystem and an intelligent appliance utilizing an Internet protocol version 6 (IPv6) and its subsequent versions. | 12-31-2015 |
20160094469 | STATION-SIDE TERMINAL APPARATUS, AND PATH SWITCHING METHOD - A station-side terminal apparatus comprises terminal devices and a terminal device sorting unit. The terminal devices includes: a buffer unit; a subscriber-side terminal apparatus sorting unit configured to transmit a unicast packet addressed to a switch-target subscriber-side terminal apparatus to the switch queues, and transmit a packet addressed to a plurality of subscriber-side terminal apparatuses to the broadcast queue, and transmit a unicast packet addressed to a non-switch-target subscriber-side terminal apparatus to the through queue; and a scheduler unit configured to read a packet from the switch queues, the broadcast queue, and the through queue. The terminal device sorting unit is configured to transmit a received unicast packet to the terminal device, and transmit a received packet addressed to a plurality of subscriber-side terminal apparatuses, to each of the terminal devices. | 03-31-2016 |
20160182983 | Method and Device for Bandwidth Assignment of Optical Burst Ring | 06-23-2016 |
20160197699 | Bandwidth Map Update Method and Device | 07-07-2016 |
20220141559 | Intelligent subsystem - An intelligent subsystem coupled with a system-on-chip (comprising a microprocessor/graphic processor), a radio transceiver, a voice processing module/voice processing algorithm, a foldable display, a near-field communication device, a biometric sensor and an intelligent learning algorithm is disclosed. The intelligent subsystem can respond to a user's interests and/or preferences. Furthermore, the intelligent subsystem is sensor-aware or context-aware. | 05-05-2022 |