81 results about "Fast Ethernet" patented technology

A system for protocol processing in a computer network has a TCP / IP Offload Network Interface Device (TONID) associated with a host computer. The TONID provides a fast-path that avoids protocol processing for most large multi-packet messages, greatly accelerating data communication. The TONID also assists the host for those message packets that are chosen for processing by host software layers. A communication control block for a message is defined that allows DMA controllers of the TONID to move data, free of headers, directly to or from a destination or source in the host. The context is stored in the TONID as a communication control block (CCB) that can be passed back to the host for message processing by the host. The TONID contains specialized hardware circuits that are much faster at their specific tasks than a general purpose CPU. A preferred embodiment includes a trio of pipelined processors with separate processors devoted to transmit, receive and management processing, with full duplex communication for four fast Ethernet nodes.

A system for protocol processing in a computer network has a TCP / IP Offload Network Interface Device (TONID) associated with a host computer. The TONID provides a fast-path that avoids protocol processing for most large multi-packet messages, greatly accelerating data communication. The TONID also assists the host for those message packets that are chosen for processing by host software layers. A communication control block for a message is defined that allows DMA controllers of the TONID to move data, free of headers, directly to or from a destination or source in the host. The context is stored in the TONID as a communication control block (CCB) that can be passed back to the host for message processing by the host. The TONID contains specialized hardware circuits that are much faster at their specific tasks than a general purpose CPU. A preferred embodiment includes a trio of pipelined processors with separate processors devoted to transmit, receive and management processing, with full duplex communication for four fast Ethernet nodes.

Method and apparatus for transporting Ethernet data packets via radio frames in a wireless metropolitan area network. A terminal includes a data packet receiver for receiving data packets for communication over a wireless link wherein not every data packet has a same length; a data packet formatting apparatus for formatting the data packets according to radio frames wherein the radio frames each have a same length and wherein the data packets are formatted into the radio frames such that boundaries for the data packets are not necessarily aligned with boundaries for the radio frames; and a wireless transceiver for communicating the radio frames over the wireless link. The packets can be Fast Ethernet packets. The terminal does not convert the Ethernet data packets into a telephony communication protocol or into an asynchronous transfer mode (ATM) protocol prior to communication of the radio frames over the wireless link. The terminal can include a data packet synchronizer for synchronizing the data packets to a clock signal associated with the radio frames. The data packets can be time-division multiplexed into the radio frames. According to another aspect, a method of transporting Ethernet data packets via radio frames includes steps of receiving Ethernet data packets wherein each data packet includes a preamble and a start-of-frame delimiter, stripping off the preamble and start-of-frame delimiter, formatting the packet data according to radio frames, including appending a synch field to the packet data, and appending a length field to the packet data.

The present invention provides scalable and rapid Ethernet fault detection which eliminates the requirement to contiguously send heartbeat frames at regular intervals to detect connectivity faults for each Ethernet Path. The present invention generates Continuity Check Message (CCM) frames only when a fault occurs, continues generating CCM frames while the fault remains, and discontinues when the fault clears. The present invention can be utilized with Ethernet Protection Switching to rapidly detect faults. Additionally, the present invention can be used in any Ethernet topology including point-to-point, rings, and the like.

A method of communicating a packet sent from a sending processing element to a recipient processing element over a fast Ethernet network is provided, wherein an offload engine is used to process portions of the Ethernet protocol functions. The offload engine is a field-programmable gate array in communication with a switched fabric, and can send “fake” acknowledgements of a received packet to the sending processing element. If acknowledgement of receipt of the packet is not received by the offload engine prior to expiry of a timer, the offload engine will request the sending processing element resend the packet.

The system of the present invention provides data transmission speeds at or in excess of 10 gigabits per second between one or more source devices and one or more destination devices. The system comprises a media access control (MAC) interface to facilitate receipt and transmission of packets over a physical interface. A first field programmable gate array is coupled to the MAC interface and operative to receive packets from the MAC interface and configured to perform initial processing of packets, which are dispatched to a first memory. A second field programmable gate array is operative to retrieve packets from the first memory and configured to compute an appropriate destination, which is used to dispatch packets to a backplane. A third field programmable gate array is provided that is operative to receive packets from the backplane and configured to organize the packets for transmission, which are dispatched to a second memory. A fourth field programmable gate array is coupled to the MAC interface and operative to retrieve packets from the second memory and configured to schedule the transmission of packets to the MAC interface for transmission to one or more destination devices.

The invention relates to a synthesized access system which realizes multi-information, multi-system, multi-traffic fusion based on EPON passive optical network and DVB, IPTV double mode set top box. The system includes synthesized access of loaded traffics of various type such as data network, telecommunication network, television broadcast network. The system communicates with local apparatus OLT of EPON optical network through apparatus such as switch, protocol conversion, and completes uplink and downlink load by three wavelengths of lamda1, lamda3, and lamda2 in one optical fiber applying WDM technique. OLT connects optical network unit ONU at user side through passive optical network structure. Different positions where ONU is located corresponds to positions optical fiber reaches in FTTX. ONU connects to high speed Ethernet switch, various user audio, data equipments and double mode set top box through various interfaces, and final access of two video traffic of DVB and IPTV is completed by double mode set top box, thus a synthesized traffic access system is composed.

An Ethernet Optical Area Network (EOAN) system, and methods for implementing and using such an EOAN system, are disclosed. The EOAN system may be used to improve the speed and reliability of data communications networks for small to medium-sized companies in metropolitan area networks. The EOAN system provides end-to-end Ethernet protocol, enabling professionals to have high-speed data communications in real time. The EOAN system may be generally utilized for improving data communications between branch offices, home offices, campuses, and remote sites for a wide variety of industries. The present invention preferably includes a fiber optic ring, Network Operation Center (NOC), NOC architecture components, existing client equipment, and one or more Free Space Optic (FSO) devices, microwave communication technology, and / or data switching platforms to implement high-speed Ethernet-based connections such as within a specified metropolitan area. The preferred EOAN system preferably integrates a plurality of FSO, microwave, and / or fiber optic technologies with Ethernet protocol (Fast Ethernet, Gigabit Ethernet, 10 Gigabit, etc.) to provide data connection services.

A digital network video and audio monitoring system includes a real time digital video and audio processing unit, a fast Ethernet switching unit and a self-protecting and alarming unit. The real time digital video and audio processing unit has multiple audio and video processing modules each made of an interface card and connected to a video and audio monitor. The fast Ethernet switching unit is connected to the real time digital video and audio processing unit and further connected to TCP / IP network. Therefore, monitoring signals from the video and audio monitor can be sent to the network. Further, the self-protecting and alarming unit is connected between an external AC power source and outputs of the video and audio monitors to detect whether any abnormal signals occur. The present invention can directly connect to one or more video and audio monitors and send the monitoring signals over the network.

The invention provides a method and exchange equipment for realizing a fast Ethernet ring, wherein the method comprises: all nodes of an Ethernet execute the following steps respectively: judging whether a link between the node and an adjacent node is normal, if so, sending election messages carrying election identification (EID) periodically; receiving the election messages from the other nodes, comparing the EID of the node with the EIDs of the other nodes, judging whether the node is a transmission node according to preset election regulation and the comparison result, if so, converting the identity of the node into the transmission node and stopping sending the election messages, and if not, continuing to send the election messages; and when the node receives the election message sent by the node, converting the node into a master node, and configuring the Ethernet into the Ethernet ring, wherein the EID consists of a media access control (MAC) address of the node and a random number (RND) generated randomly. By the invention, all the nodes in the Ethernet ring can elect out the master node automatically without the need of user configuration.

This invention discloses an intelligent Ethernet card with hardware acceleration function. The network card has the embedded high-performance processor, and designs two fiber Gigabit Ethernet interfaces and two copper Fast Ethernet interfaces, the network bandwidth being as high as 2.2Gbps, attached with the large capacity memory and the hardware acceleration module configured by user program. The network card uses 64-Bit / 133MHz PCI-X interface, with PCI-X V1.0A and PCI V2.3 bus specification. The network card can be used in the servers with higher requirement to the network processing capacity, and using the powerful network processing capacity of the network card, it can unload many needs in the server to the network card, processed by network card processor and hardware acceleration module, thus reducing the pressure on the server, increasing the overall system processing power.

The present invention is provided with an optical module and a method of the optical module to support GE optical port and FE optical port. The optical module comprises a serialization and solving serialization Serdes interface and an inner placed physical layer device PHY. The PHY provides the signal between the serial gigabit medium independence interface SGMII and the optical module, and supports the fast ethernet FE optical port or gigabit ethernet FE optical port. The technical scheme provided by the invention makes the optical module output GE optical port or FE optical port according to requirement, and new functions are compatible on the base of the existing development veneer. Outputting FE optical port avoids modifying the chip frequently and reduces the kinds of veneer with same function. Meanwhile, the cost of the GE interface is optimal.

A driver circuit for driving a line in a network comprises first driving means for driving the line, second driving means for driving the line, and switching means for switching between the first and second driving means. A method for providing multi-mode driver capability is also described. The method comprises the steps of providing a line driver circuit including both a current source and a voltage source, selecting a first or second mode of operation, operating the line driver circuit in a first configuration when the first mode of operation is selected, and operating the line driver circuit in a second configuration when the second mode of operation is selected.

The invention is applied in the technical field of interface design, and provides an interface multiplexing device and electronic equipment. The device comprises a multiplex interface and a switching unit, wherein the multiplex interface is used for receiving transmission signals sent by external equipment; and the switching unit is used for identifying that the transmission signals are fast Ethernet signals or differential serial signals and establishing a signal channel between the multiplex interface and a fast Ethernet signal processing unit or a differential serial signal processing unit in a panel of the electronic equipment according to the identification result. According to the device, the type of the transmission signals is automatically identified by using level difference between the fast Ethernet signals and the differential serial signals, and the signal channel between the multiplex interface and the fast Ethernet signal processing unit or the differential serial signal processing unit in the panel of the electronic equipment is established according to the identification result, so that an interface multiplexing function is realized, the problem that the available space of the panel of the conventional electronic equipment is constrained is solved, possibility is provided for miniaturization of a product, and popularization and application of the electronic equipment are facilitated.

A Fast Ethernet and HDMI Ethernet channel (HEC) physical layer circuit. The physical layer circuit comprises a Fast Ethernet physical layer module implementing a physical layer specification of a Fast Ethernet communication standard; a hybrid circuit connected to the fast Ethernet physical layer module using a first twisted-pair wire and a second twisted-pair wire and capable of processing transmit and receive HDMI Ethernet channel (HEC) signals concurrently transported over a third twisted-pair wire; a switch for bypassing the hybrid circuit; and a controller for controlling the operation the hybrid circuit and the switch according to the operating mode of the physical layer circuit, wherein the operation mode of the physical layer circuit is any of a fast Ethernet and a HEC.

An access device includes a Multi-protocol Label Switching (MPLS) connection management functional module for establishing a label connection and using the label connection for service transmission. The present invention also discloses a service transmission method, including establishing, in the access device, an external connection with the network side, and getting the received service mapped by the access device to the external label for transmission. A high bandwidth of the access device is ensured by utilizing a simple label switching principal in the MPLS protocol according to this invention; meanwhile, it is possible for the access device to support the access of multiple services, such as those of a Time Division Multiplexing (TDM), an Asynchronous Transfer Mode (ATM), a Fast Ethernet (FE) and an Asymmetric Digital Subscriber Line (ADSL), by utilizing the good service adaptability of the MPLS protocol to effectively increase the utilization rate of the network.

The present invention provides scalable and rapid Ethernet fault detection which eliminates the requirement to contiguously send heartbeat frames at regular intervals to detect connectivity faults for each Ethernet Path. The present invention generates Continuity Check Message (CCM) frames only when a fault occurs, continues generating CCM frames while the fault remains, and discontinues when the fault clears. The present invention can be utilized with Ethernet Protection Switching to rapidly detect faults. Additionally, the present invention can be used in any Ethernet topology including point-to-point, rings, and the like.

The present invention relates to a POE system realized on MicroTCA and its management method, including simultaneously realizing Ethernet function and Ethernet power supply function on a plug-in board card; utilizing a microprocessor and its serial port to manage POE through another board card ; Or directly use the CPU to manage POE, and manage the management data in the form of IP packets through Gigabit and 100M Ethernet ports for management; through the combination of two PD-side POE controllers, high-power power supply is realized. The POE system has good module scalability and management intelligence, which simplifies system design.

The back-up system based on fast Ethernet bus includes main card, N line cards, kernel Ethernet exchange module, through which the line cards are connected to the main card, and Ethernet bus for interacting information between the main card and the kernel Ethernet exchange module and between one of the line cards and kernel Ethernet exchange module. The present invention is used in the back-up and rearrangement of both hardware and software during inserting and withdrawing line card and in case of failure. The present invnetion is used to replace parallel bus for the information interaction and can simplify back board design, raise the anti-jamming capacity and increase the transmission distance. The present invention adopts spot-to-spot connection mode to ensure the simultaneous data interaction between each of the line cards and the main card.

The invention relates to a safety inspection system with embedded Ethernet transmission based on a SOPC. The input end of a data acquisition / conversion module of the system is connected with the output end of a X-ray detection plate, the output end of the data acquisition / conversion module is connected with the input end of a technical control and information receiving and processing system based on the SOPC, and the output end of the technical control and information receiving and processing system based on the SOPC is connected with an image data receiving and image processing module of a remote upper computer. In the system, various required modules are articulated on an AVALON bus by adopting the SOPC technology, the flexibility of the system is enhanced, the acquisition and transmission acceleration of the safety inspection system is achieved through hardware acceleration, and the stability of the system is improved; communication devices and communication lines do not need to be additionally arranged for realizing PCI or USB remote transmission of large-scale data; the Ethernet transmission is designed into embedded transmission; and rapid Ethernet transmission is realized by clipping the Ethernet communication protocol, thereby achieving high-speed transmission of large-scale data.

The invention discloses a smart power grid distribution type measurement and control synchronizing method. A test terminal with Ethernet networking and a GPS (Global Positioning System) synchronous sequence interface forms a hardware platform together with a server by a known rapid Ethernet exchanger, and the synchronous measurement and control of a distribution type power grid can be realized under the control of a synchronous acquisition and management program, wherein 128 terminals form a distribution type test system and are respectively connected at different parts of transformer substations or factories to complete the local data acquisition, control and processing, and meanwhile, each terminal is managed by a Workstation through a network so as to realize the synchronous control of the local test terminal and other terminals and the data processing by cooperation with the other terminals. According to the smart power grid distribution type measurement and control synchronizing method, the synchronous test between the remote test terminals of the power grid is realized, and the demands on the safety monitoring, grid-tied control and proper scheduling of each station by the distribution type power grid can be met.

The invention provides an embedded single-board multi-processor parallel system in order to solve the technical problems of the background art. The embedded single-board multi-processor parallel system comprises a plurality of processor systems arranged on a circuit board, each processor system is provided with an independent embedded processor, a corresponding RAM (random-access memory) and a corresponding ROM (read-only memory), an independent boot program and an independent operating system are burnt in the corresponding ROM of each embedded processor, a complete algorithm library is configured in each independent operating system to support applications and algorithm service programs, and the independent embedded processors are connected with each other through a fast Ethernet switch chip. The structure of the embedded single-board multi-processor parallel system is simple, a plurality of systems are connected together through a network to carry out concurrent operation, and the embedded single-board multi-processor parallel system does not have complex hardware control logic; the computing capabilities of a plurality of embedded processors are effectively integrated, the processing capability of the whole system is enhanced, and the embedded single-board multi-processor parallel system is not limited by the technical upgrading progress of a manufacturer.

The invention discloses a system for diagnosing and positioning ground grid faults of an electric system, which comprises a host computer working station, a data measuring and acquiring device, a communication server, a network device, a voice alarm device and a display device, wherein the host computer working station comprises data base management for processing data sent by the data measuring and acquiring device and obtaining various required information; the data measuring and acquiring device measures the voltage of a measurable node; the communication server finishes the communications with computer scheduling and other computer systems; the network device is connected into a fast Ethernet through a network switch; the voice alarm device performs voice alarm on electric station faults and accidents; and the display device outputs and displays the required information. As an independently operated working station, the system can be combined with various devices to form a comprehensive automatic system for a transformer substation. The system has the advantages of small workload, high speed, portable devices and the like, and does not influence the normal operation of the electric system.

The invention relates to an IP network-based integrated service switchboard (100), which is characterized by comprising an analogue user unit ASU (101), an analogue trunking unit ATU (102), a digital trunking unit DTU (103), an integrated service unit ISU (104), a main processing unit MPU (105), a service processing unit SPU (106), a voice resource unit VRU (107), a media resource unit MRU (108) and a fast Ethernet interface unit FEI (109), wherein the switchboard (100) realizes the integrated service switching function by operating system programs in the analogue user unit ASU (101), the analogue trunking unit ATU (102), the digital trunking unit DTU (103), the integrated service unit ISU (104), the main processing unit MPU (105), the service processing unit SPU (106), the voice resource unit VRU (107) and the media resource unit MRU (108). The switchboard can construct a multi-service integrated communication platform for enterprises by adopting advanced technology of TDM, VoIP and the like in the field of communication and combining the own Intranet network of the enterprises.

Methods and systems for fast Ethernet controller operation using a virtual CPU are disclosed and may comprise controlling an on-chip Ethernet controller utilizing a virtual CPU comprising a microcode engine that loads a single instruction and executes the instruction prior to loading or executing a subsequent instruction. The instructions may be fetched by the virtual CPU from an external non-volatile memory or on-chip ROM. The virtual CPU may initialize the Ethernet controller and provide patches for supporting hardware workarounds, wake on LAN service, and vital production data such as serial number, product name, manufacturer and related manufacturing data. The virtual CPU may power down the Ethernet controller and may be halted via a particular command and procedure.

The invention provides a wireless dispatching system of an IP-based digital train, which integrates various functions. The system is divided into a business layer, a control layer, a transport layer and an access layer, wherein the transport layer is a railway dispatching IP private network; the access layer comprises a dispatch switchboard connected onto the IP private network through an FE (fast Ethernet) interface, a relay gateway, a plurality of dispatching desks and a plurality of radio stations, and the radio stations are connected with a station control box through FE interfaces and transmit wireless signals to a locomotive radio station and portable stations through Ethernet exchange; the control layer adopts soft switch equipment or VoIP gateway equipment; and the business layer comprises various expansion servers, is hung on the IP network and provides expansion services. With the adoption of the wireless dispatching system of the IP-based digital train, not only is the speech quality improved, but also the systemic reliability is improved greatly; and moreover, the station administering capacity of the dispatch switchboard is improved, and the system can administer no less than 100 stations.

An Ethernet Optical Area Network (EOAN) system, and methods for implementing and using such an EOAN system, are disclosed. The EOAN system may be used to improve the speed and reliability of data communications networks for small to medium-sized companies in metropolitan area networks. The EOAN system provides end-to-end Ethernet protocol, enabling professionals to have high-speed data communications in real time. The EOAN system may be generally utilized for improving data communications between branch offices, home offices, campuses, and remote sites for a wide variety of industries. The present invention preferably includes a fiber optic ring, Network Operation Center (NOC), NOC architecture components, existing client equipment, and one or more Free Space Optic (FSO) devices, microwave communication technology, and / or data switching platforms to implement high-speed Ethernet-based connections such as within a specified metropolitan area. The preferred EOAN system preferably integrates a plurality of FSO, microwave, and / or fiber optic technologies with Ethernet protocol (Fast Ethernet, Gigabit Ethernet, 10 Gigabit, etc.) to provide data connection services.

The present invention relates to computerized managing system for large scale telecom enterprise. It backs up the business analysis by adopting data warehouse technology. The data warehouse is shared in multidimensional database server for business activity analysis and multidimensional database server for client behavior analysis. The computerized management system of the present invention adopts Ethernet as central LAN connected to the main servers of the system, and Internet as WAN interconnected with other remote systems. The computerized management system of the present invention integrates the available business systems and is one computerized management system covering various kinds of business, possessing analysis and decision ability and providing clients with high quality, convenient and efficient service.

A system and method of reducing the input and output pins used to interface a fast serial port Ethernet processing system using multiplexing. Using the system of the present invention, four pins can allow a plurality of Ethernet communication paths to be connected to a single processor on a substrate. These four connections include a clocking input as well as a strobe signal which coordinates the multiplexing and identifies the time period for a predetermined source. The physical layer and the processor are each provided with a multiplexor which is controlled by the strobe to select the network to be coupled at any given time. The multiplexor includes a counter which is incremented by the clocking input and reset by the strobe signal.