76 results about "Giga-" patented technology

An air filled trench is formed underneath the waveguide to reduce propagation loss, which in turn allowing the waveguide to be in the close proximity of on-chip devices, such as a photodetector. The air filled trench is formed from the back side of the substrate; hence it would not disturb the integration and the formation of components on the front side of the substrate. In another embodiment, for silicon-on-insulator (SOI) based device, with an air filled trench and a metal electrode, a back gate is formed. In yet another embodiment, air filled trench also reduces the substrate loss of RF passive components and passive antenna operating in Giga Hertz range. Air filled trenches can be used for both photonic and electronic circuits in a planar lightwave circuit. Finally, another embodiment is for the trench to effectively guide gases and fluids to pass through the detection area.

The present invention relates to a device for protecting high frequency RF integrated circuits from ESD damage. The device comprises at least one varactor-LC circuit tank stacked to avoid the power gain loss by the parasitic capacitance of ESD circuit. The varactor-LC tank could be designed to resonate at the RF operating frequency to avoid the power gain loss from the parasitic capacitance of ESD circuit. Multiple LC-tanks could be stacked for further reduction in the power gain loss. A reverse-biased diode is used as the varactor for both purposes of impedance matching and effective ESD current discharging. Because the inductor is made of metal, both the inductor and the varactor can discharge ESD current when ESD condition happens. It has a high enough ESD level to prevent ESD discharge.

The present invention relates to a service method for a construction of networks having automatic backup and load-balancing upon failures to networks and systems, and more particularly to a dedicated private network service method having a load-balancing function wherein the network backup is available since a bypass path is made to normally operating IDC centers upon failures to a specific IDC of the IDCs dispersed in plural places in a public IP networks by GLB servers, and load-balancing as to entire servers is available by constructing network equipment changeable into a private IP network in case of connecting to the IDC centers, connecting the network equipment by Giga lines, and using dispersed IDCs as a network constructed in one place. Further, the present invention, in a dedicated private network, comprises steps of (1) performing a bypass connection to an IDC normally operated upon a failure of a specific IDC by connecting a user by IDC center in a public IP network by a GLB server upon a user's connection; (2) changing a public IP address to a private IP address upon a connection to the dedicated private network; (3) load-balancing traffic to plural IDC centers after interactively connecting the respective IDC centers by constructing a ring-shape network with the IDC centers of private IP networks connected by Giga lines; and (4) performing the load balancing of servers by identifying server states at SLB servers in the respective IDC centers.

According to one embodiment of the disclosure, an environmental protection coating comprises a circuit assembly having a first protective dielectric layer and a second dielectric layer. The circuit assembly has an outer surface on which a plurality of discrete electrical components are attached. The first protective dielectric layer overlays the circuit assembly. The second dielectric layer overlays the first protective dielectric layer and is made of a dielectric material having modulus of elasticity less than 3.5 Giga-Pascal (GPa), dielectric constant less than 2.7, dielectric loss less than 0.008, breakdown voltage strength in excess of 2 million volts/centimeter (MV/cm), temperature stability to 3000 Celsius, defect densities less than 0.5/centimeter, pinhole free in films greater than 50 Angstroms, capable of being deposited conformally over and under 3D structures with thickness uniformity less than or equal to 10%.

Well core data descriptions are received as input digital data for computer lithofacies modeling. Digital templates are established for carbonate and clastic core description based on reservoir rock formation analysis. Description criteria of the template for carbonate rock can include texture, mineral composition, grain size, and pore type. For clastic rock, the criteria in the template can include grain size, sedimentary structure, lithology, and visual porosity. The data and observations regarding these criteria are entered into a computer 3D geological modeling system directly. Wireline log data are integrated to calibrate with well core description to derive lithofacies. The lithofacies are exported in digital format to be entered into the 3D geological modeling system. A geologically realistic model of the reservoir can be established.

The invention discloses a parallel computation management-based autonomous navigation simulation and scheduling management system, which consists of a hardware system and a software system, wherein the hardware system consists of a master control computer, a real-time scheduling computer, a simulation computing node, a real-time communication network and a clock card; the real-time communication network consists of a giga Ethernet network and an infiniband high-performance real-time network; and the software system consists of a supporting operating system, master control end software and real-time scheduling control software. The parallel computation management-based autonomous navigation simulation and scheduling management system ensures the real-time property of a simulation system due to the adoption of the infiniband high-performance real-time network and an REDHAWK real-time operating system, ensures the possibility that the system realizes parallel computations in terms of hardware due to the adoption of a computing server and a blade server, realizes the parallel computations among simulation system models based on a data driving asynchronous pipeline parallel real-time scheduling algorithm, and in combination with the hardware, greatly speeds up the computation of the simulation system and ensures the parallelism and the real-time property of the complex simulation system.

The invention discloses a GPON uplink bandwidth management method; a group is established basing on a plurality of same or different T-CONTs of an ONU by setting four basic T-CONTs and the T-CONT group becomes the logical bandwidth management unit; the T-CONT group and T-CONTs in the group are all provided with SLA parameters to execute two-stage DBA scheduling; the T-CONT group logically integrates the service flows born by different T-CONTs to represent the capability of GPON of providing multi-services and all-round services for users; moreover, DBA can participate in the scheduling of different data alignments in the ONU, thus being conducive to keeping down the scheduling function of the internal alignments of the ONU and reducing the complexity of the DBA policy.

The invention discloses a timing device and method for automatically capturing a 10G EPON (10 Giga Ethernet Passive Optical Network) message and relates to the field of communication. The timing method comprises the following steps: after starting the automatic capturing, counting for a preset time by an absolute clock subjected to time correction of a user/OLT (Optical Line Terminal)/ONU (Optical Network Unit) under an absolute timing capturing mode; starting the 10G EPON message capturing and writing into a capturing cache according to screening conditions; under a relative timing capturing mode, detecting a frame content and a frame state captured by specific starting; starting to count by a timing clock till reaching the time preset by the user; and starting a packet grabbing process and writing into the capturing cache according to screening conditions. According to the timing method provided by the invention, the 10G EPON message can be automatically and accurately captured and analyzed; the space for storing the captured message is reduced by designing accurate timing and filtering conditions; the performance and the use efficiency of a remote dispatcher are promoted; and the intercommunication capacity of different equipment factories is enhanced.

A process optically transports digital data over an all-optical long-haul communication path. The process includes transporting digital optical data signals at a selected bit rate and a selected wavelength over a sequence of transmission spans. The sequence includes 70 percent or more of the spans of the long-haul all-optical communication path. Each span of the sequence has a primary local maximum optical power point for the wavelength on a transmission fiber and nearest to an input of the span. The transporting causes a cumulative dispersion of each signal to evolve such that residual dispersions per span are positive over some of the spans and are negative over other of the spans. At the primary local maximum power points, magnitudes of cumulative dispersions of the signals in pico seconds per nanometer remain at less than 32,000 times the inverse of the bit rate in giga bits per second.

The invention discloses a capturing circuit and a writing control method of 10G EPON (10 Giga Ethernet Passive Optical Network) messages. The writing control method comprises the following steps: receiving EPON messages interacting among 10G EPON OLT (Optical Line Terminal) and ONU (Optical Network Unit) through an optical module and a 10G SERDES (Serializer/Deserializer); combining and triggering message capturing according to set conditions after the decoding at a PCS (Physical Coding Sub-layer); writing the captured message into capturing cache, wherein the steps and formats for storing the capturing frames are as follows: writing 128bit frame data at an even number clock period while a frame envelope is valid; and writing the frame head byte number, the frame end byte number, the reaching time, the frame error indication, CRC (Cyclic Redundancy Check) verification error indication and frame boundary symbol of the frame within a clock period at the frame end. With the adoption of the capturing circuit and the writing control method, continuous EPON messages of 10 G can be captured and analyzed rapidly and precisely; the storage space of the captured message is reduced through specific triggering and screening conditions; the performance and the use efficiency of the remote scheduling are improved; and the inter-compatibility of factories of different equipment is enhanced.

The optical network unit thereof has CATV-signal outputting function while realizing the transmission of Ethernet data transmission so as to realizing the transmission of TV signal in EPON, and can be used in realizing EPON-based three-network integration. The invention uses an optical module integrated with three wave lengths and an ONU MAC process chip so as to improve the reliability of ONU and to reduce the cost, and is equipped with mega bytes and giga bytes Ethernet I/O interfaces so as to improve the adaptability of ONU.

This invention relates to a method and a device for forward error correction process to down data in a giga passive optical network GPON, in which, the method includes: a specific byte in the dowm data is set to be a fixed datum, the FEC process module adds said datum to the tail of the down data frame while coding and casts off said fixed datum when decoding, which casts aside the effective data of255 residual part in the GPON down frame and the system can work without adding FEC process modules and performances or altering the system clock frequency.

The relative giga-level NIDS paralleled process method based on NP and BS comprises: receiving all data package from target network by a translator; dividing high-speed network data flow into multiple low-speed data flow, and determining target detector; changing target MAC of data package into detector MAC, and sending to the detector by a exchange board; with two complementary threads, acquiring data, analyzing protocol, and matching feature; and forming a detection result on console. This invention improves process capacity of whole system, and reduces package-missing rate.

The invention can build connection between two GE (Giga Ethernet) ports having different configuration modes. The method comprises: a control process is added, which firstly configures the GE ports into a self-negotiation mode and tries to build connection, if the connection is failure, then configures the ports to Gigabits full duplex at a force mode; before the ports is configured into a force mode, firstly making detection to decide if there is a optical signal, if yes, then configuring the ports to force mode.