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    • 34. 发明授权
    • Method, device and system for updating routes after node fails in P2P network
    • P2P网络节点故障后更新路由的方法,设备和系统
    • US08248919B2
    • 2012-08-21
    • US12605931
    • 2009-10-26
    • Guangyu ShiJian ChenHao Gong
    • Guangyu ShiJian ChenHao Gong
    • H04J1/16
    • H04L45/28H04L45/02H04L45/025H04L67/104H04L67/1048
    • A method for updating routing table information after a node fails in a P2P network is disclosed herein. The method includes: the range of the nodes whose route is directed to the failed node is determined according to the distance between the failed node and the neighboring node of the failed node; the failure information of the failed node is sent to the LDN of the failed node within the node range; and the LDN updates the routing table according to the failure information. A network device and a P2P communication network are also disclosed herein. The embodiments of the present invention enhance the capability of the whole P2P network in perceiving node churn and improve the route search efficiency and system stability of the whole P2P network.
    • 这里公开了在P2P网络中节点故障之后更新​​路由表信息的方法。 该方法包括:根据故障节点与故障节点的相邻节点之间的距离确定路由指向故障节点的节点范围; 故障节点的故障信息发送到节点范围内的故障节点的LDN; LDN根据故障信息更新路由表。 本文还公开了网络设备和P2P通信网络。 本发明的实施例提高了整个P2P网络感知节点流失的能力,提高了整个P2P网络的路由搜索效率和系统稳定性。
    • 36. 发明授权
    • User data server system, method and apparatus
    • 用户数据服务器系统,方法和装置
    • US08230063B2
    • 2012-07-24
    • US12829752
    • 2010-07-02
    • Guangyu ShiLingyuan FanJian ChenHao Gong
    • Guangyu ShiLingyuan FanJian ChenHao Gong
    • G06F15/173G06F15/16H04L12/28
    • H04L67/104H04L67/1065
    • 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.
    • 用户数据服务器系统包括:存储用户数据的数据存储节点,通过使用密钥将用户数据注册在分布式散列表(DHT)网络中,并且接收和处理用户数据操作请求; DHT索引节点,其根据DHT算法创建和维护DHT路由信息,并且根据密钥存储用户数据存储的数据存储节点的信息,并根据密钥搜索存储目标用户数据的数据存储节点的信息,根据 钥匙; DHT超维护节点,管理和优化DHT网络; 以及能够进行协议处理和服务处理的前端节点,其通过根据所述DHT网络查询所述DHT索引节点,获得与目标用户相关联的密钥,并获取存储所述目标用户数据的数据存储节点的信息 并对存储在存储目标用户数据的数据存储节点中的用户数据执行操作。 利用本发明提供的技术方案,用户数据服务器不是集中的,并且具有高度可扩展性和高可靠性,而且具有高成本效益。
    • 40. 发明授权
    • Power factor correction power supply unit, and control circuit and control method used in the same
    • 功率因数校正电源单元,以及使用的控制电路和控制方法
    • US08089255B2
    • 2012-01-03
    • US12461979
    • 2009-08-31
    • Jian Chen
    • Jian Chen
    • G05F1/00
    • H02M1/4225Y02B70/126Y02P80/112
    • A power factor correction power supply unit for correcting a power factor includes a switching device, an input voltage detection circuit, an output voltage detection circuit, an error amplifier for outputting an error signal obtained by amplifying a difference between an output voltage detection signal and a reference voltage, an ON width generation circuit for generating an ON time width, an OFF width generation circuit for generating an OFF time width of the switching device, and a switching device driving circuit. The drive circuit conducts an ON/OFF control over the switching device upon receiving a turn-on timing signal for turning on the switching device as soon as the OFF time width is terminated and upon receiving a turn-off timing signal for turning off the switching device as soon as the ON time width is terminated.
    • 用于校正功率因数的功率因数校正电源单元包括开关器件,输入电压检测电路,输出电压检测电路,误差放大器,用于输出通过放大输出电压检测信号和 参考电压,用于产生导通时间宽度的ON宽度产生电路,用于产生开关装置的OFF时间宽度的OFF宽度产生电路和开关装置驱动电路。 一旦OFF时间宽度终止,接收到接通开关装置的接通定时信号,并且当接收到用于关断开关的关断定时信号时,驱动电路对开关装置进行ON / OFF控制 一旦ON时间宽度终止,设备即可。