215 results about "High-speed link" patented technology

A simple network comprises of: xDSL service equipment located at a distribution center coupled to an Aggregator Separator (AGSEP) System located at a DC; AGSEP system at the DC is coupled, using a high-speed link, to another AGSEP system located at a remote site, which is coupled to subscriber equipment using drop cables. The AGSEP systems aggregate the xDSL signals originating at either DC xDSL equipment or subscriber equipment, are carried over the high-speed link. The AGSEP systems and separate the aggregated signals at either end to distribute the separated signal to the respective equipment.

A distributed collaborative computer system that supports application sharing is provided that comprises a plurality of server computers interconnected via a high-speed link. Client computers can connect to any available server computer and start or join a conference hosted on either the server computer to which the client computer is connected or any other server in the system. As a result, the system and method of the present invention allow application sharing among an arbitrary number of client computers.

A distributed collaborative computer system is provided that comprises a plurality of server computers interconnected via a high-speed link. Client computers can connect to any available server computer and start or join a conference hosted on either the server computer to which the client computer is connected or any other server in the system. As a result, the system and method of the present invention is easily scalable to support an arbitrary number of participants to a conference by merely adding the appropriate number of server computers to the system. In addition, by replicating the conference information on more than one server computer, the single point of failure limitation is eliminated. In fact, if a server hosting or participating in a conference malfunctions, the failure is detected by other server computers and the client computer is able to reconnect to the conference through a new server computer.

A distributed collaborative computer system is provided that comprises a plurality of server computers interconnected via a high-speed link. Client computers can connect to any available server computer and start or join a conference hosted on either the server computer to which the client computer is connected or any other server in the system. As a result, the system and method of the present invention is easily scalable to support an arbitrary number of participants to a conference by merely adding the appropriate number of server computers to the system. In addition, by replicating the conference information on more than one server computer, the single point of failure limitation is eliminated. In fact, if a server hosting or participating in a conference malfunctions, the failure is detected by other server computers and the client computer is able to reconnect to the conference through a new server computer.

A fault-tolerant distributed collaborative computer system is provided that comprises a plurality of server computers interconnected via a high-speed link. By replicating the conference information on more than one server computer, the single point of failure limitation is eliminated. In fact, if a server hosting or participating in a conference malfunctions, the failure is detected by other server computers and the client computer is able to reconnect to the conference through a new server computer. In addition, the state of processes executed by the server computers is periodically replicated, so that when failure of a process is detected a new processes can be spawned and the replicated state information loaded onto the new process, allowing the on-line conference to continue.

A computer system that employs Peripheral Component Interconnect Express (PCIe) links includes devices that generate a PCIe packet having a header portion that is smaller than the header portion for a conventional PCI packet. The devices may be an endpoint device, such as a graphics processor, and a chipset, such as a root-complex. The reduced size header improves the bus throughput efficiency of the computer system and reduces power requirements for the computer system.

A distributed collaborative computer system that supports document sharing is provided that comprises a plurality of server computers interconnected via a high-speed link. Client computers can connect to any available server computer and start or join a conference hosted on either the server computer to which the client computer is connected or any other server in the system. As a result, the system and method of the present invention allow document sharing among an arbitrary number of client computers.

Certain aspects of a method and system for a hardware-based implementation of USB 1.1 over a high-speed link may comprise translating at a client side of a client server communication system, USB protocol messages comprising a first USB standard to corresponding encapsulated USB protocol messages, wherein the USB protocol messages comprising the first USB standard are received from a client device at the client side of the client server communication system. The translated corresponding encapsulated USB protocol messages may be communicated from the client side to a server at a server side of the client server communication system.

The invention discloses a synchronization and time delay compensation method between base band unit and radio system, wherein a high-speed chain between a base band unit BBU and a radio unit RRU realizes synchronization of BBU and RRU via ascending and descending time marks, at descending direction, via two stages of time delay of BBU and RRU, adjusting the compensation of chain time delay, at ascending direction, using data driving to generate base band receiving interruption to compensate chain time delay. The inventive method can realize the synchronization between base band and radio system, and realize the accurate compensation of time delay. The invention can apply the signals of GSM/EDGE between base band and radio for different transmission protocols, while the invention can be used for data transmission with fixed frame.

A method and apparatus to reduce the idle link power in a platform. In one embodiment of the invention, the host and its coupled endpoint(s) in the platform each has a low power idle link state that allows disabling of the high speed link circuitry in both the host and its coupled endpoint(s). This allows the platform to reduce its idle power as both the host and its coupled endpoint(s) are able to turn off their high speed link circuitry in one embodiment of the invention.

The present invention provides improved methods and systems to build an integrated IP network in which high-quality services such as voice and best-effort data services can be provided with higher reliability and lower cost. A new type of router, called a PACS router, is disclosed in which the user terminals, computer servers, access routers and other service terminals are connected to the integrated router. A PACS router includes a packet-switching fabric and a circuit-switching fabric interconnected by channelized high-speed links. The PACS router creates and uses two types of channels within channelized high-speed links, which in turn are transported from one router to another via SONET network links. The channels are labeled as either packet-channel or circuit-channel according to the usage of these channels. High-quality services are mapped into a circuit-channel at the service originating router and routed through the circuit-switching fabrics in the routers. The best-effort services, on the other hand, are mapped into a packet-channel, which is terminated in each PACS router where packets from packet-channels are extracted and routed hop-by-hop according to the packet destination header address. A network built with PACS routers uses signaling and routing protocols to segregate traffic into different classes and route them using circuit-channels and packet-channels depending on quality of service requirements. Routing high-quality service over circuit-channels eliminates routing delay typically incurred in packet-switching fabrics, enhances reliability from software malfunction in the router since existing connection at circuit-switching fabric does not depend on software control and enhances network scalability by not having to terminate all traffic into packet-switching fabrics in every PACS router. The circuit-switching fabrics in the PACS routers also provide further immunity by fast rerouting of failed circuits via alternate routes when a network fault is detected.

Multiple video streams can be transmitted over a high speed link. A connection with a receiver can be detected by a transmitter. The transmitter can then establish a link with the receiver. Multiple streams of video data can be packed into a transfer unit. The transmitter can then transmit the transfer unit with the multiple stream video data over one or more lanes of the link to the receiver. A high speed communications link between a receiver and a transmitter can transmit data for multiple video streams over a single lane within a data link. The high speed communication link is scalable in bandwidth and video/audio streams transmitted, and backward compatible with other types of video data communication connections. The high speed link may support up to eight video/audio streams simultaneously, thereby enabling full use of data link bandwidth.

A method and system for transmitting data between at least one receiver operatively connected to at least one transmitter, and more particularly to a method and a system for permissible transmission via at least one high-speed link having a plurality of virtual channels. The method includes the receiver sending a virtual channel credit packet for a particular virtual channel to the transmitter, the credit packet being indicative that the receiver is available to receive data and having a unique virtual channel number assigned to said particular virtual channel thereto. The transmitter responds to the virtual channel credit packet, which includes transmitting data to the receiver if data is available. The receiver receives the data transmitted from the transmitter.

A bus bridge on a primary RAID controller receives user write data from a host and writes the data to its write cache and also broadcasts the data over a high speed link (e.g., PCI-Express) to a secondary RAID controller's bus bridge, which writes the data to its mirroring write cache. However, before writing the data, the second bus bridge automatically invalidates the cache buffers to which the data is to be written, which alleviates the primary controller's CPU from sending a message to the secondary controller's CPU to instruct it to invalidate the cache buffers. The secondary controller CPU programs its bus bridge at boot time with the base address of its mirrored write cache to enable it to detect that the cache buffer needs invalidating in response to the broadcast write, and with the base address of its directory that includes the cache buffer valid bits.

This invention broadly comprises a novel segment protection scheme (survivability framework) for a network, which we refer to as PROMISE (Protection using MultIple SEgments). It combines the best of existing link and path protection schemes (e.g., bandwidth efficiency and fast recovery). The PROMISE approach divides an active path or AP (along which a survivable connection is established) into several, possibly overlapping active segments or ASs, and then protects each AS with a detour called backup segment or BS (instead of protecting the AP as a whole as in path protection schemes). This facilitates the bandwidth sharing not only among the BSs for different APs, but also among those for the same AP. In addition, recovery time can be shortened due to the limited length of each AS and BS. This technology can be applied to MPLS, ATM, SONET, WDM and other high-speed link layers under the evolving G-MPLS framework.

Methods, apparatus, and systems for preventing false packet acceptance in high-speed links. Under one aspect, correctable symbol errors are detected, and determination is made to whether a symbol error rate or ratio (SER) exceeds an SER threshold. In response to detection of such a condition, the link is disconnected or temporarily paused. The value for the SER threshold is determined using a statistical analysis of various link parameters to meet desired performance levels, such as a mean time to false packet acceptance (MTTFPA) of >approximately 15 billion years while providing a mean time to disconnect of >100 years.

A method and apparatus for providing link aggregation and 10.2 gigabit per second throughput in a Fibre Channel fabric. One aspect of the present invention provides a port module for receiving a 10.2 gigabit link on a fiber interface and providing trunking of a plurality links on the backplane, wherein the backplane is coupled to a switching element. In addition, another aspect of the present invention provides a first port module coupled to a switching element for receiving a 10.2 gigabit link from a fabric on a fiber interface and thereafter transmitting fiber channel frames to a second port module coupled to the switching element that interfaces to the fabric at 10.2 gigabits, thereby providing 10.2 gigabit to 10.2 gigabit throughput from the first port module to the second port module.

The described embodiments include a system that modulates the width of a high-speed link. The system includes a transmitter circuit coupled to a high-speed link that includes N serial lanes. During operation, while using a first number of lanes to transmit frames on the high-speed link, the transmitter circuit determines a second number of lanes to be used to transmit frames on the high-speed link based on a bandwidth demand on the high-speed link. The transmitter circuit then sends an indicator of the second number of lanes to a receiver on the high-speed link. Upon receiving an error-free acknowledgment of the indicator from the receiver, starting from a predetermined frame, the transmitter circuit transmits subsequent frames on the high-speed link using the second number of lanes.

Time-based grooming and degrooming methods and systems of data units that utilize a common time reference is disclosed. Time is divided into a plurality of contiguous periodic time frames with a plurality of time frame durations. The system and method enable the grooming and switching of data units from a plurality of low speed links into one or more high-speed links. The system and method further enable the grooming and switching of data units from one or more high-speed links into a plurality of low speed links. The plurality of data units that are contained in each of the time frames are forwarded in a pipelined manner through the network switches. The system operates with high-speed wavelength division multiplexing (WDM) links, i.e., with multiple lambdas. The outcome of this method is called fractional lambda grooming.