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| 20090003327 | METHOD AND SYSTEM OF DATA COMMUNICATION, SWITCHING NETWORK BOARD - A method and system of data communication, switching network board are disclosed. The data communication system includes multiple line card chassis, each including multiple line cards, at least one switching chip and at least one relay chip. The line card is respectively connected to the switching chip and the relay chip of the same line card chassis. The switching chip of one line card chassis is connected to the relay chip of at least one of other line card chassis. The relay chip of the one line card chassis is connected to the switching chip of the at least one of other line card chassis. The switching network board includes a switching chip and a relay chip. By implementing the above embodiments, the networking complexity is reduced, the networking cost is saved and the system reliability is enhanced in the case that a few line card chassis are cascaded. | 01-01-2009 |
| 20100118867 | SWITCHING FRAME AND ROUTER CLUSTER - A switching chassis includes more than one cascade unit and more than one switching unit, where: the cascade units have cascade interfaces to connect line processing chassis; the switching units have switching ports to connect the cascade interfaces; and any cascade interface of any cascade unit is connected to one switching port of any switching unit. A router cluster with the above switching chassis includes switching chassis and line processing chassis interconnected via optical fibers, where: any optical interface of any line processing chassis is connected to one cascade interface of any cascade unit; and any cascade interface of any cascade unit is connected to one switching port of any switching unit. With the present invention, the capacity of a router cluster can be expanded without the need to replace any component of the router cluster so that the expansion cost is lower. | 05-13-2010 |
| 20110208844 | CLUSTER SYSTEM, METHOD AND DEVICE FOR EXPANDING CLUSTER SYSTEM - A method for expanding a cluster system is provided. The cluster system includes at least one Cluster Central Chassis (CCC), and a newly-added Cluster Line-card Chassis (CLC) connected with the CCC to form the cluster system. The method includes the following steps. A control plane is established. An equipment management right is switched to the CCC, so that the CCC manages the newly-added CLC. Meanwhile, a cluster line-card device, a cluster central exchange device, and a cluster system are further provided. In implementation, smooth expansion can be achieved without interrupting running equipment services in the CLC current network and without interrupting data services. Moreover, during the expansion process, hardware equipment needs not to be replaced, thus investment of users on the equipment is reduced. | 08-25-2011 |
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| 20080219167 | Method, system and device for processing device overload in communication network - A method for processing device overload in a communication network includes: a device involved in a service connection checking in real time whether processing capability of the device exceeds an overload threshold set in the device, and sending to a neighboring device of the device an overload alarm message containing an address of the device if the processing capability of the device exceeds the overload threshold; the neighboring device restricting traffic passing through the device after receiving the overload alarm message. The method of the present invention enables the device involved in the service connection to automatically lead the establishment of the subsequent service connection reasonably, which improves the operation efficiency of network and shortens the processing delay of service connection. | 09-11-2008 |
| 20080240114 | Data Frame Forwarding Method By Data Relay Entity And Data Relay Entity - The present disclosure discloses a data frame forwarding method for forwarding a data frame via a data relay entity DRE applicable in an Ethernet, including: setting one or more ports of the DRE to be V-Switch enabled, and configuring one or more of the V-Switched DRE ports to operate in the V-Switch function and in an Ethernet function shared mode; configuring decision polices for forwarding a received data frame through the V-Switch function in the shared mode; when the data frame is received though the ports of the DRE configured in the shared mode, if flag information carried in the data frame matches the decision policies, forwarding the data frame through a forwarding process corresponding to the V-Switch function; otherwise forwarding the data frame through a forwarding process corresponding to an Ethernet function. | 10-02-2008 |
| 20090141729 | MULTIPLEX METHOD OF VLAN SWITCHING TUNNEL AND VLAN SWITCHING SYSTEM - A multiplex method of a virtual local area network (VLAN) switching (VS) tunnel includes the following steps. An ingress edge node of the VS tunnel maps a received customer data unit onto one virtual channel (VC) borne by the VS tunnel, and encapsulates the customer data unit into a VS tunnel Ethernet frame including a VS tag, a VC tag, and the customer data unit. The VC tag identifies the different VCs borne by the VS tunnel. An intermediate node of the VS tunnel switches the VS tunnel Ethernet frame according to the VS tag, and transports the customer data unit and the VC tag transparently in the VS tunnel. An egress edge node of the VS tunnel terminates the VS tunnel and the VC, recovers the customer data unit, and forwards the data according to the VC tag. | 06-04-2009 |
| 20100169280 | DISTRIBUTED NETWORK CONSTRUCTION AND STORAGE METHOD, APPARATUS AND SYSTEM - The disclosure relates to distributed network communications, and in particular, to a distributed network construction method and apparatus, a distributed data storage method and apparatus, and a distributed network system. When a node joins a distributed network, the ID of the node is determined according to the geographic location information about the node. Therefore, all the nodes in the same area belong to the same ID range, and the node IDs are allocated according to the area. Because the node IDs are determined according to the area, the local data may be stored in the node in the area according to the geographic information, inter-area data access is reduced. Therefore, the method, the apparatus, and the system provided herein reduce the data load on the backbone network, balance the data traffic and the bandwidth overhead of the entire network, and reduce the network instability. | 07-01-2010 |
| 20100268820 | USER DATA SERVER SYSTEM, METHOD AND APPARATUS - A user data server system includes: a data storage node, which stores user data, registers the user data in a Distributed Hash Table (DHT) network by using a key, and receives and processes user data operation requests; a DHT index node, which creates and maintains DHT routing information according to a DHT algorithm and stores information of data storage nodes where user data is stored according to the key and searches for information of a data storage node where target user data is stored according to the key; a DHT super maintenance node, which manages and optimizes the DHT network; and a front end node capable of protocol processing and service processing, which obtains a key associated with a target user and obtains information of a data storage node where the target user data is stored by querying the DHT index node via the DHT network according to the key, and performs operations on the user data stored in the data storage node where the target user data is stored. With the technical solution provided by the present invention, a user data server is not centralized and is highly scalable and highly reliable with a high cost-effectiveness. | 10-21-2010 |
| 20110305243 | METHOD AND DEVICE FOR IMPLEMENTING VIRTUAL-SWITCH - The present invention provides a method and a device for implementing a V-Switch. Through setting up a V-Switch correlation with respect to at least two VLAN tags, a DRE performs a V-Switch transmission on an Ethernet frame received according to the V-Switch correlation with respect to at least two VLAN tags. The invention can expand the number of V-Switch connections carried on a local link to 4096×4096, or even to 4096×4096×4096 . . . . Therefore, the problem of insufficient VLAN tag resources is solved, and the requirements for the scale of V-Switch technology is met. Moreover, a more effective V-Switch method is provided, the switching capability of V-Switch is improved, and the application scale of V-Switch technology is enlarged. | 12-15-2011 |
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| 20110197942 | THIN-FILM THERMO-ELECTRIC GENERATOR AND FABRICATION METHOD THEREOF - For the thin-film thermo-electric generator and fabrication method of this invention, a P-type thermo-electric thin-film layer, an insulating thin-film layer and a N-type thermo-electric thin-film layer is deposited on a substrate to form a three-layer PN junction, multiple three-layer PN junctions in series are available, an insulating thin-film layer is provided between every to serial three-layer PN junctions, and electrodes are extracted from the substrate and the outermost thin-film layer of the last three-layer thin-film PN junctions. The present invention applies the deposition of P-type thermo-electric thin-film layer, an insulating thin-film layer and a N-type thereto-electric thin-film layer to form a three-layer PN junction, thus a thermo-electric generator is formed, during the deposition of the insulating thin-film layer, intentionally sheltering the substrate and one end of the deposited thin-film layer and depositing the P-type or N-type materials on the substrate and one end of the deposited thin-film layer directly, to form a connection of PN junction or a serial connection between two PN junction, the separate connection of the P-type or N-type materials is not required, simplifying the fabrication processes of the thin-film thermo-electric generator, owning to the function of the thin-film thermo-electric materials and serial connection structure of multiple three-layer PN junctions, the performance of the thin-film thermo-electric generator is greatly improved. | 08-18-2011 |
| 20120064656 | METHOD FOR FABRICATING THERMO-ELECTRIC GENERATOR - For the present invention, a P-type thermo-electric thin-film layer and a N-type thermo-electric thin-film layer are respectively deposited on two sides of an insulating substrate. During the deposition, the P-type thermo-electric thin-film layer and the N-type thermo-electric thin-film layer are deposited and connected on the same exposed side of the insulating substrate, and then a PN junction is formed. This method makes the fabrication simplified without special process for connecting the P-type thermo-electric thin-film layer and the N-type thermo-electric thin-film layer. Due to the features of thin-film thermo-electric material, the performance of thermo-electric generator is improved. During the deposition, the P-type thermo-electric thin-film layer and the N-type thermo-electric thin-film layer are deposited and connected on the exposed side of the insulating substrate, so welding is not required in this heating surface side. The performance of thermo-electric generator fabricated in heating surface working temperature is accordingly greatly improved. | 03-15-2012 |
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| 20100014505 | METHOD AND DEVICE FOR SERVICE TIME DIVISION MULTIPLEXING - A method and device for service time division multiplexing as well as a method and a device for transmitting service are disclosed. The method for service time division multiplexing includes: selecting a part or all of radio frames in one time unit as specific radio frames; and selecting a part or all of subframes in the specific radio frames as specific subframes for sending a specific service. The specific service is a multimedia broadcast multicast service, or a unicast service, or one or more than one kind of service transmitted in broadcast or multicast mode. | 01-21-2010 |
| 20100111024 | METHOD AND APPARATUS FOR FEEDING BACK AND RECEIVING ACKNOWLEDGEMENT INFORMATION OF SEMI-PERSISTENT SCHEDULING DATA PACKETS - The present invention relates to radio communications, and discloses a method and apparatus for feeding back and receiving acknowledgment (ACK) information of semi-persistent scheduling (SPS) data packets. The method for feeding back ACK information of SPS data packets includes: receiving an uplink downlink assignment index (UL DAI) from a base station (BS), where the value of the UL DAI indicates the number of downlink data packets (N); mapping ACKs/NAKs of k SPS data packets of the downlink data packets to positions from the (N−k+1)th ACK/NAK to the N | 05-06-2010 |
| 20100260135 | Method and Apparatus for Feeding Back and Receiving Acknowledgement Information of Semi-Persistent Scheduling Data Packets - The present invention relates to radio communications and discloses a method and apparatus for feeding back and receiving acknowledgment (ACK) information of semi-persistent scheduling (SPS) data packets. The method for feeding back ACK information of SPS data packets includes receiving an uplink downlink assignment index (UL DAI) from a base station (BS), wherein the UL DAI indicates a number (N) of downlink data packets, mapping acknowledgements/negative acknowledgements (ACKs/NAKs) of k SPS data packets of the downlink data packets to positions from the (N−k+1)th ACK/NAK to the N | 10-14-2010 |
| 20110019659 | Method and Device for Service Time Division Multiplexing - A method and device for service time division multiplexing as well as a method and a device for transmitting service are disclosed. The method for service time division multiplexing includes: selecting a part or all of radio frames in one time unit as specific radio frames; and selecting a part or all of subframes in the specific radio frames as specific subframes for sending a specific service. The specific service is a multimedia broadcast multicast service, or a unicast service, or one or more than one kind of service transmitted in broadcast or multicast mode. | 01-27-2011 |
| 20110194521 | Method and Apparatus for Feeding Back and Receiving Acknowledgement Information of Semi-Persistent Scheduling Data Packets - A method and apparatus for feeding back and receiving acknowledgment (ACK) information of semi-persistent scheduling (SPS) data packets are disclosed. The method for feeding back ACK information of SPS data packets includes receiving an uplink downlink assignment index (UL DAI) from a base station (BS), wherein the UL DAI indicates a number (N) of downlink data packets, mapping acknowledgements/negative acknowledgements (ACKs/NAKs) of k SPS data packets of the downlink data packets to positions from the (N−k+1)th ACK/NAK to the Nth ACK/NAK, and feeding back N ACKs/NAKs to the BS. | 08-11-2011 |
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| 20110241424 | VOLTAGE TRANSFORMING DEVICE AND METHOD AND POWER SUPPLY SYSTEM - A voltage transforming device is provided, which includes: a first voltage transforming module, configured to perform a pre-stage voltage transformation on an input DC voltage to output an isolated DC voltage, in which the pre-stage voltage transformation includes a primary transformation that converts the input DC voltage to a to-be-transformed AC voltage; a capacitor filtering module, configured to perform capacitor filtering compensation on the isolated DC voltage in the dead time to output a stable intermediate DC voltage; and a second voltage transforming module, configured to perform at least two separate post-stage voltage transformations on the intermediate DC voltage to output DC voltages required by at least two loads. A voltage transforming method and a power supply system are also provided. Thereby, the decoupling of the pre-stage and post-stage working modes is achieved, and the interference suffered during voltage transformation is reduced. | 10-06-2011 |
| 20110317453 | CONTROL CIRCUIT, CONTROL METHOD, AND POWER SUPPLY DEVICE - A control circuit, a control method, and a power supply device are provided. The control circuit includes an obtaining module, adapted to obtain a voltage signal from a reverse surge current when the reverse surge current appears on a primary side of a switch power circuit of a synchronous rectification circuit; a maintaining module, adapted to continuously output a first control signal in a preset first time period when the voltage signal is greater than a preset first voltage threshold; and a control module, adapted to control and switch off switch tubes of the secondary side of the switch power circuit of the synchronous rectification circuit according to the first control signal. Thus, a reverse current surge of the switch power circuit of the synchronous rectification circuit can be effectively suppressed, and the safety of a switch power supply of the synchronous rectification circuit can be effectively protected. | 12-29-2011 |
| 20120026756 | CONTROL CIRCUIT, CONTROL METHOD, AND POWER SUPPLY DEVICE - A control circuit, a control method, and a power supply device are provided. The control circuit includes an obtaining sub-circuit, adapted to obtain a voltage signal from a reverse surge current when the reverse surge current appears on a primary side of a switch power circuit of a synchronous rectification circuit; a maintaining sub-circuit, adapted to continuously output a first control signal in a preset first time period when the voltage signal is greater than a preset first voltage threshold; and a control sub-circuit, adapted to control and switch off switch tubes of the secondary side of the switch power circuit of the synchronous rectification circuit according to the first control signal. Thus, a reverse current surge of the switch power circuit of the synchronous rectification circuit can be effectively suppressed, and the safety of a switch power supply of the synchronous rectification circuit can be effectively protected. | 02-02-2012 |
| 20120032509 | VOLTAGE TRANSFORMING DEVICE AND METHOD AND POWER SUPPLY SYSTEM - A voltage transforming device is provided, which includes: a first voltage transforming module, configured to perform a pre-stage voltage transformation on an input DC voltage to output an isolated DC voltage, in which the pre-stage voltage transformation includes a primary transformation that converts the input DC voltage to a to-be-transformed AC voltage, a working period of the primary transformation includes a first half period and a second half period, and a dead time exists when a first half period and a second half period are switched between each other; a capacitor filtering module, configured to perform capacitor filtering compensation on the isolated DC voltage in the dead time to output a stable intermediate DC voltage; and a second voltage transforming module, configured to perform at least two separate post-stage voltage transformations on the intermediate DC voltage to output DC voltages required by at least two loads. | 02-09-2012 |
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| 20090249423 | METHOD, DEVICE AND SYSTEM FOR IMPLEMENTING SEEKING PLAY OF STREAM MEDIA - A method, a device and a system for implementing seeking play of stream media are provided. The method for implementing seeking play of stream media includes: sending a seeking play request to a stream media server; receiving preview key frames for seeking play sent from the stream media server according to a predefined buffer capacity range and storing the preview key frames for seeking play; displaying the preview key frames for seeking play; and initiating a stream media play according to preview key frames selected by a seeking of a user. This invention can improve the seeking operation experience of the user, control the downloading time of the extracted program, and reduce requirements of storage capability of the stream media terminal. | 10-01-2009 |
| 20100199321 | METHOD, DEVICE AND SYSTEM FOR STARTING IPTV SERVICE - A method for starting an Internet Protocol Television (IPTV) service is provided, which includes the following steps. Before the terminal accesses an IP network, an Internet Group Management Protocol (IGMP)-based join request message carrying multicast program channel data is sent via a physical link connection. Then, a media stream of a multicast group which the join request message requests to join in is acquired. A device and a system for starting an IPTV service and an IPTV terminal are also provided. The IPTV service startup speed is accelerated, and the time spent on waiting for the startup of the IPTV services is shortened. | 08-05-2010 |
| 20110005828 | METHOD AND TERMINAL DEVICE FOR IMPLEMENTING AUDIO CONNECTOR INTERFACE CONVERSION - A method for implementing audio connector interface conversion is provided in an embodiment of the present invention. The method includes installing a 4-pin jack of an audio connector inside a terminal device, and connecting the power end, signal end, and grounding end of an infrared interface on the terminal service control unit and the serial signal transmitting end, serial signal receiving end, power end, and grounding end on the terminal service control unit directly or through a logical circuit unit to the four connecting ends on the jack of the audio connector. In the technical scheme provided in an embodiment of the present invention, control and switching can be performed on the basis of the working mode, so that the electronic terminal device with an audio interface can use its audio interface to provide an infrared signal interface and a serial communication port. | 01-13-2011 |
