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40results about How to "Increase the number of ports" patented technology

Network redundancy method and middle switch apparatus

Each of an upper switch apparatus and lower switch apparatuses is connected to ports of a same port number of a pair of middle switch apparatuses by setting link aggregation, the pair of the middle switches are connected to each other via redundancy ports. When failure occurs at a port, connected to the lower switch apparatus, of one middles switch apparatus of the pair, the one middle switch apparatus adds input port information to a frame addressed to the failed port to transfer the frame to another middle switch apparatus of the pair from the redundancy port, and the another middle switch apparatus receives the frame from the redundancy port and transfers the frame in accordance with the input port information added to the frame.
Owner:FUJITSU LTD

Method, system and device router overlapping based on PCIe exchange architecture

The present invention discloses a router stacking method, a system and an apparatus based on fast peripheral equipment interconnecting PCIe exchange architecture. The method comprises the following steps: initializing non-transparent bridge NT port under the PCIe switch of a first router, the PCIe switch of the first router connects with the PCIe switch of a second router by the NT port; and realizing message interaction between the first router and the second router. The router stacking method based on PCIe exchange architecture stacks two or more PCIe exchange architecture routers into a more high-end router system which has more ports and greatly-improved process ability, and is applied to higher-required networking environment.
Owner:NEW H3C TECH CO LTD

Wavelength selection switch device, wavelength switching method for same and communication device

The invention provides a wavelength selection switch device, a communication device and a wavelength switching method. The wavelength selection switch device comprises an incident unit, an emergent unit, a wavelength dispersion and synthesis unit, a light control unit, a liquid crystal light beam deflection unit, a reflection unit and a deflection driving unit, wherein the incident unit comprises a plurality of incident light rays, the emergent unit comprises a plurality of emergent light rays, the wavelength dispersion and synthesis unit is used for dispersing and multiplexing each incident light ray on the first axial direction according to wavelengths, the light control unit is used for enabling different-wavelength light rays dispersed on the first axial direction not to be dispersed in the second axial direction, a plurality of pixels of the liquid crystal light beam deflection unit are divided into sub-areas corresponding to all the wavelengths, deflection is conducted on light rays with different wavelengths by changing phase-shift characteristics of the pixels of the sub-areas, the reflection unit is arranged parallel to the liquid crystal light beam deflection unit, the deflection driving unit drives the electrodes of the pixels of the sub-areas to generate needed phase-shift characteristics, and then light rays entering the sub-areas are deflected. According to the technical scheme, the number of ports of the wavelength selection switch device is greatly increased.
Owner:WUHAN POST & TELECOMM RES INST CO LTD

Method of data delivery across a network fabric in a router or ethernet bridge

The invention provides an Ethernet bridge or router comprising a network fabric adapted to provide interconnectivity to a plurality of Ethernet ports, each of the Ethernet ports being adapted to receive and / or transmit Ethernet frames, and wherein the Ethernet bridge or router further comprises an encapsulator connected to receive Ethernet Protocol Data Units from the Ethernet ports, wherein the encapsulator is operable to generate a Fabric Protocol Data Unit from a received Ethernet Protocol Data Unit, the Fabric Protocol Data Unit comprising a header portion, and a payload portion which comprises the Ethernet Protocol Data Unit concerned, and wherein the encapsulator is operable to transform Ethernet destination address information from the Ethernet Protocol Data Unit into a routing definition for the network fabric, and to include this routing definition in the header portion of the Fabric Protocol Data Unit. Also provided is a method of data delivery across a network.
Owner:CRAY UK

Silicon-photonics-based optical switch with low polarization sensitivity

A polarization-independent optical switching system capable of rerouting light signals is disclosed. The system includes a plurality of switching cells, each including a pair of bus waveguides that are formed in different planes above a substrate. Each bus waveguide supports low-loss propagation of both the TE- and TM-polarization modes and are optically decoupled when the switch is in an unswitched state. In its switched state, a shunt waveguide that also supports low-loss propagation of both polarization modes is moved into proximity with both bus waveguides to form a pair of adiabatic directional couplers that enable the light signal to evanescently couple between each bus waveguide and the shunt waveguide. As a result, the path of a light signal through the switching cell is reconfigured.
Owner:RGT UNIV OF CALIFORNIA

Method and apparatus for transmitting and receiving reference signal and for scheduling

The present application provide a reference signal transmitting method, including: notifying a User Equipment (UE) of a grid index and a reference signal port index of the UE, wherein a coverage area of a base station is divided into grids, the grid index of the UE is an index of a based on the grid index; and transmitting the reference signal on corresponding time-frequency resources based on the grid index and the reference signal port index. The present application further provides a corresponding reference signal transapparatus, and a scheduling method and appartus. According to the technical solution provided by the present application, it is possible to increase the number of ports that the system can support at the same time with low reference resource overhead, and to ensure that the interface of the reference signal is controllable and eliminable, thereby ensuring transmission realiability.
Owner:SAMSUNG ELECTRONICS CO LTD

Wavelength and power scalable waveguiding-based infrared laser system

An infrared laser source system that combines laser emitters through an optical waveguide. Each emitter is coupled to a port of the optical waveguide and the waveguided signal is combined to provide a spatially combined laser source with a single common exit aperture. The materials used for waveguiding allow the propagation of wavelengths in the infrared. The system can be used for combining multiple laser emitters to increase the total output power and / or for combination of multiple emitters with different wavelength for increased spectral coverage out of the laser system.
Owner:THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY

Wavelength and power scalable waveguiding-based infrared laser system

An infrared laser source system that combines laser emitters through an optical waveguide. Each emitter is coupled to a port of the optical waveguide and the waveguided signal is combined to provide a spatially combined laser source with a single common exit aperture. The materials used for waveguiding allow the propagation of wavelengths in the infrared. The system can be used for combining multiple laser emitters to increase the total output power and / or for combination of multiple emitters with different wavelength for increased spectral coverage out of the laser system.
Owner:THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY

Massive MIMO electrical adjusting antenna

A Massive MIMO electrical adjusting antenna comprises a physical phase shift portion and a digital phase shift portion. The physical phase shift portion comprises a radiation unit module, a power division network module, a phase shifter module, a connection structure module, a driving device and an RET control portion which are successively connected from top to bottom. The radiation unit module comprises a plurality of groups of radiation units arranged in parallel. The power division network module comprises a plurality of groups of power division networks arranged in parallel. The phase shift module comprises a plurality of phase shifters arranged in parallel, and the connecting structure module comprises a plurality of connecting structures arranged in parallel. The plurality of radiation units in a single group are connected in parallel and are correspondingly connected with a group of power division networks. The single-group power dividing network is connected to one phase shifter, the phase shifter is correspondingly connected with the connecting structure respectively, the connecting structures are connected to the driving device together, the driving device is electrically connected with the RET control portion, and the connecting structures are connected with the driving device and the phase shifters respectively and drive the phase shifters to move. In the invention, the number of ports of the antenna is prevented from being increased, and a beam scanning function can be covered more widely.
Owner:TONGYU COMM INC

Silicon-photonics-based optical switch with low polarization sensitivity

A polarization-independent optical switching system capable of rerouting light signals is disclosed. The system includes a plurality of switching cells, each including a pair of bus waveguides that are formed in different planes above a substrate. Each bus waveguide supports low-loss propagation of both the TE- and TM-polarization modes and are optically decoupled when the switch is in an unswitched state. In its switched state, a shunt waveguide that also supports low-loss propagation of both polarization modes is moved into proximity with both bus waveguides to form a pair of adiabatic directional couplers that enable the light signal to evanescently couple between each bus waveguide and the shunt waveguide. As a result, the path of a light signal through the switching cell is reconfigured.
Owner:RGT UNIV OF CALIFORNIA

Multi-band multiplexing intra-cavity gas sensing system and method

InactiveUS20140176951A1Extending wavelength scanning rangeImprove scalabilityColor/spectral properties measurementsMulti bandFiber
Disclosed is a multi-band multiplexing intra-cavity gas sensing system and method. The system consists of a laser resonant cavity subsystem, a gas sensing subsystem and a detection-demodulation subsystem. The laser resonant cavity subsystem consists of the first beam splitter, two ways of gain paths composed of a pump light source, a wavelength division multiplexer, a rare earth doped fiber, an optical isolator and a tunable optical attenuator, a beam combiner and an F-P tunable optical filter. The gas sensing subsystem consists of a gas cell and an optical reflective mirror. The detection-demodulation subsystem consists of an optical coupler, the second beam splitter, two optical detectors, a data acquisition module and a computer. In this invention, different rare-earth doped fibers are multiplexing into one system, in order to cover more maser bands of different rare earth, which greatly expands the scanning range of wavelength, and is capable of detecting various gases simultaneously. New gain paths can be added to the system, to further expand the scanning range of wavelength. Hence, the present invention has strong expandability.
Owner:TIANJIN UNIV

Hub devices and methods for initializing hub device

A hub device includes a first chip, a second chip and an external memory device. The first chip includes at least a first upstream port and multiple first downstream ports. The second chip includes at least a second upstream port and multiple second downstream ports. The external memory device stores firmware data corresponding to the first chip and the second chip. One of the first downstream ports of the first chip is coupled to the second upstream port of the second chip to form a tiered hub. The first chip and the second chip are sequentially enabled and the first chip and the second chip sequentially load the corresponding firmware data.
Owner:VIA TECH INC

Two-driving-many transmission device and antenna inclination angle control system

The invention provides a two-driving-many transmission device and an antenna inclination angle control system. The transmission device comprises two driving shafts, that is, a first driving shaft anda second driving shaft; two gear assemblies, that is, a first gear assembly and a second gear assembly; and a driving device and output mechanisms. During use, the driving device drives the first driving shaft and the second driving shaft to rotate; the first gear assembly can engage one or more output mechanisms; the driving device drives the second gear assembly to rotate through the second driving shaft, and the second gear assembly can drive the output mechanisms engaged with the first gear assembly; and the output mechanisms are connected with phase shifters to drive the corresponding phase shifters to adjust the downward inclination angle of an antenna. The two-driving-many transmission device and the antenna inclination angle control system can realize inclination angle control of two or more than two beam antennas, and meanwhile, realize modular installation, maintenance and replacement, reduce size and cost, and improve reliability of the antenna control system.
Owner:εˆ˜ζ–ΉθˆŸ

Efficient implementation of multiple clock domain accesses to diffused memories in structured ASICs

A semiconductor device comprising one or more diffused memories and one or more diffused regions. The one or more diffused regions may be configured to provide one or more ports for the one or more diffused memories.
Owner:AVAGO TECH WIRELESS IP SINGAPORE PTE

Expansion method for maximum antenna port number supported by CSI-RS

The invention proposes an expansion method for a maximum antenna port number supported by CSI-RS in a LTE system, and the method comprises the steps: selecting 8*k ports as antenna ports supported by the CSI-RS besides 8 ports with the number P (equal to 15, 16,...,22); and enabling the 8 ports with the number P (equal to 15, 16,...,22) to serve as an original port group, wherein every eight ports of the 8*k ports serve as a new port group, and the eight ports of each new port group and the eight ports in the original port group are corresponding to each other in a one-to-one manner and employ the same RE resource. All ports of each port group employ the same CSI-RS subframe configuration information, and the CSI-RS subframe configuration information of all port groups is different from each other. The method increases the number of ports, and improves the utilization rate of the RE resource.
Owner:BEIJING XINWEI TELECOM TECH

Optical switch

The embodiment of the invention provides an optical switch. The optical switch comprises an optical fiber array, a collimating lens and a reflector, the optical fiber array comprises a plurality of optical fibers arranged in a matrix; the fiber core diameter of the front end part of the optical fiber is greater than the fiber core diameters of other parts; the surface of the front end part of theoptical fiber is defined as a front end surface, and the front end surface is arranged at the front focal plane of the collimating lens; and the reflecting mirror is rotatably arranged on the rear focal plane of the collimating lens. An optical signal emitted by the optical fiber is focused to the reflector through the collimating lens, and the optical signal is reflected according to a preset deflection angle of the reflector and then is incident to another optical fiber through the collimating lens. The optical fiber array is composed of a plurality of optical fibers, wherein the fiber corediameters of the front ends of the optical fibers are larger than those of other parts. The mode field radius of the light spot of the emergent light is enlarged, the focal length of the collimating lens is increased under the condition that the size of the mirror surface is kept unchanged, the allowable off-axis distance of the optical fiber on the outermost periphery of the optical fiber array is increased, and therefore the number of ports of the optical switch is increased.
Owner:HUAZHONG UNIV OF SCI & TECH +1

Method of data delivery across a network fabric in a router or Ethernet bridge

The invention provides an Ethernet bridge or router comprising a network fabric adapted to provide interconnectivity to a plurality of Ethernet ports, each of the Ethernet ports being adapted to receive and / or transmit Ethernet frames, and wherein the Ethernet bridge or router further comprises an encapsulator connected to receive Ethernet Protocol Data Units from the Ethernet ports, wherein the encapsulator is operable to generate a Fabric Protocol Data Unit from a received Ethernet Protocol Data Unit, the Fabric Protocol Data Unit comprising a header portion, and a payload portion which comprises the Ethernet Protocol Data Unit concerned, and wherein the encapsulator is operable to transform Ethernet destination address information from the Ethernet Protocol Data Unit into a routing definition for the network fabric, and to include this routing definition in the header portion of the Fabric Protocol Data Unit. Also provided is a method of data delivery across a network.
Owner:CRAY UK

Wavelength selective switch device, wavelength switching method therefor, and communication equipment

Provided are a wavelength selective switch device, a communication device, and a wavelength switching method. The wavelength selective switch device includes: an incident unit, including a plurality of incident lights; an exit unit, including a plurality of outgoing lights; a wavelength dispersion synthesis unit, which disperses and multiplexes each incident light in the first axial direction according to the wavelength; a light control unit , used to make the light of each wavelength dispersed on the first axis not to disperse on the second axis; the liquid crystal beam deflection unit, wherein a plurality of pixels are divided into sub-regions respectively corresponding to each wavelength, by changing the sub-region The phase shift characteristics of the pixels in the area are used to deflect the light of each wavelength; the reflection unit is arranged in parallel with the liquid crystal beam deflection unit; the deflection drive unit drives the electrodes of the pixels in each sub-area to generate the required phase shift characteristics, thereby deflecting the light entering the respective sub-regions. In the technical solutions according to the embodiments of the present application, the number of ports of the wavelength selective switch device is greatly increased.
Owner:WUHAN POST & TELECOMM RES INST CO LTD

Multi-band multiplexing intra-cavity gas sensing system and method

Disclosed is a multi-band multiplexing intra-cavity gas sensing system and method. The system consists of a laser resonant cavity subsystem, a gas sensing subsystem and a detection-demodulation subsystem. The laser resonant cavity subsystem consists of the first beam splitter, two ways of gain paths composed of a pump light source, a wavelength division multiplexer, a rare earth doped fiber, an optical isolator and a tunable optical attenuator, a beam combiner and an F-P tunable optical filter. The gas sensing subsystem consists of a gas cell and an optical reflective mirror. The detection-demodulation subsystem consists of an optical coupler, the second beam splitter, two optical detectors, a data acquisition module and a computer. In this invention, different rare-earth doped fibers are multiplexing into one system, in order to cover more maser bands of different rare earth, which greatly expands the scanning range of wavelength, and is capable of detecting various gases simultaneously. New gain paths can be added to the system, to further expand the scanning range of wavelength. Hence, the present invention has strong expandability.
Owner:TIANJIN UNIV

Light splitting device and computer storage medium

The invention relates to a light splitting device and a computer storage medium. The light splitting device comprises a plurality of optical communication ports, one or more optical modules, a light splitter and an adjustable attenuator; each optical module is provided with an optical signal receiving interface and an optical signal sending interface, and the optical signal receiving interface isconnected with the optical input port; the optical signal sending interface is sequentially connected with an optical splitter, an adjustable attenuator and an optical output port in series through anoptical fiber line; a microcontroller is connected with the optical module through a first electrical circuit so as to monitor the optical input port, is in communication connection with the adjustable attenuator through a second electrical circuit, and is used for instructing the adjustable attenuator to correspondingly control the on-off of an optical signal output by the optical output port. The adjustable attenuator is used for controlling signal output of the light splitting device; compared with an existing optical switch, signal on-off is controlled by adjusting output power, fault points are reduced, and the reliability is high; compared with a mechanical optical switch, the number of ports can be increased, light emitting of any port is controllable, and the data security is guaranteed.
Owner:SHANGHAI SINO TELECOM TECH

Method of structuring multiport asynchronous storage module

The invention discloses a method of structuring a multiport asynchronous storage module and relates to buffer storage and interchange of multichannel parallel data in the process of data interchange and processing. The method of structuring the multiport asynchronous storage module aims at solving the problem that in the process of design of a current semi-custom integrated circuit, a used storer of a technological library just has two types of single ports or double ports and can not meet certain situations of high data throughput rates. An addressing manner of address decoding control partitioning reading and writing is adopted by a plurality of double-port type storers in the technological library to structure the multiport asynchronous storage module, so that the aim that a simple port storage module is structured to the multiport storage module is achieved, and the requirement for the high data throughput rates is reached. The method of structuring the multiport asynchronous storage module has the advantages of flexibly expanding capacity and available access ports of the storer according to design requirements, reducing design difficulty, and shortening development time. Relative to a full-custom multiport storer, the method of structuring the multiport asynchronous storage module has the advantages of being good in flexible performance, high in reliability, small in design risk and the like.
Owner:NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP

Communication system and network relay device

A communication system and a network relay device capable of improving failure tolerance are provided. For example, three port switches, fabric switches, and user switches are provided, and two of the port switches configure a multi-chassis link aggregation device. Each of the fabric switches detects the number of the port switches (for example, two switches) connected without failure while logically regarding the port switches configuring the multi-chassis link aggregation device as one switch, and transmits the number of the switches (two switches) from three ports. Each of the port switches sets a link aggregation group for two of the ports which have received the largest number of the switches (two switches).
Owner:APRESIA SYST LTD

Method, device and system for transmitting and receiving service data

The invention discloses a method, a device and a system for transmitting and receiving service data. A transmitting terminal encapsulates service data to be transmitted into GEM frames in a passive optical network encapsulating mode and transmit the encapsulated GEM frames to optical fibers for transmission, wherein the GEM frames comprise service type identifiers which indicate the types of service data; accordingly, a receiving terminal receives the GEM frames and decapsulates the GEM frames to obtain the service data and the service type identifiers of the service data; and the receiving terminal identifies the service types of the service data according to the service type identifiers and carries out service processing corresponding to the service types. The method for encapsulating the service data comprises the steps: allocating the service data to be transmitted into a payload field; adding an internal field carrying port identifiers on the basis of the payload field; and addingexternal GEM frame headers carrying port identifiers on the basis of the internal field, thus the port identifiers carried by the external GEM frame headers and the port identifiers carried by the internal field together identify the port information of the service data.
Owner:HUAWEI TECH CO LTD

Method and apparatus for transmitting and receiving reference signal and for scheduling

The present application provide a reference signal transmitting method, including: notifying a User Equipment (UE) of a grid index and a reference signal port index of the UE, wherein a coverage area of a base station is divided into grids, the grid index of the UE is an index of a grid where the UE is located; generating a reference signal based on the grid index; and transmitting the reference signal on corresponding time-frequency resources based on the grid index and the reference signal port index. The present application further provides a corresponding reference signal transmitting apparatus, and a scheduling method and apparatus. According to the technical solution provided by the present application, it is possible to increase the number of ports that the system can support at the same time with low reference resource overhead, and to ensure that the interference of the reference signal is controllable and eliminable, thereby ensuring transmission reliability.
Owner:SAMSUNG ELECTRONICS CO LTD
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