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    • 32. 发明申请
    • SYSTEM AND METHOD FOR IDENTIFYING COMMUNICATION BETWEEN VIRTUAL SERVERS
    • 用于识别虚拟服务器之间的通信的系统和方法
    • US20120275328A1
    • 2012-11-01
    • US13497781
    • 2010-09-21
    • Atsushi IwataAkio Iijima
    • Atsushi IwataAkio Iijima
    • H04L12/56H04L12/26
    • H04L12/4666G06F9/45558G06F2009/45595H04L12/4633H04L12/4641H04L45/586H04L45/741H04L45/745H04L49/70H04L61/2038H04L61/256H04L61/2592H04L61/6022H04L69/161H04L69/22H04L69/324
    • Under the environment that IP addresses of virtual machines overlap, it makes it possible to carry out a communication between the virtual machines and for a network manager to grasp in a communication flow condition in real time. Specifically, the physical server assigns a virtual machine ID to the virtual server under the management, and assigns a reception-side virtual machine ID and a transmission-side virtual machine ID to a bit space of a transmission packet in the form of TCP/IP packet, when a communicating between the virtual servers through a network. Then, the physical server transmits the transmission packet onto the network. A physical switch is provided on the network connecting between the physical servers, and identifies the transmission packet based on the virtual machine ID contained in a bit space other than data of the transmission packet under the environment that IP addresses of the virtual machines overlap on the network, and collects data showing a network condition.
    • 在虚拟机的IP地址重叠的环境下,可以实现虚拟机之间的通信,网络管理员可以实时掌握通信流程。 具体地说,物理服务器在管理下向虚拟服务器分配虚拟机ID,并将接收方虚拟机ID和发送侧虚拟机ID分配给TCP / IP形式的发送分组的位空间 数据包,当通过网络在虚拟服务器之间进行通信时。 然后,物理服务器将传输分组发送到网络上。 在连接物理服务器之间的网络上提供物理交换机,并且在虚拟机的IP地址重叠的环境下,基于包含在除了传输分组的数据之外的位空间中的虚拟机ID来识别传输分组。 网络,并收集显示网络状况的数据。
    • 34. 发明申请
    • ANALOG-TO-DIGITAL CONVERTER, ANALOG-TO-DIGITAL CONVERSION METHOD, AND OPTICALLY COUPLED INSULATING DEVICE
    • 模拟数字转换器,模拟数字转换方法和光耦合绝缘装置
    • US20100309032A1
    • 2010-12-09
    • US12796157
    • 2010-06-08
    • Toyoaki UoHisami SaitouAtsushi IwataYoshitaka MurasakaToshifumi Imamura
    • Toyoaki UoHisami SaitouAtsushi IwataYoshitaka MurasakaToshifumi Imamura
    • H03M1/00H03M3/00
    • H03M3/34H03M3/43H03M3/454
    • An analog-to-digital converter includes a first switch circuit, a first integrator, a second switch circuit, a second integrator, a quantizer and a digital-to-analog converter. The first switch circuit receives an external analog signal, outputs the analog signal in reverse phase, and outputs the analog signal in positive phase. The first integrator receives and integrates the analog signal with cross-coupling. The second switch circuit outputs an output of the first integrator and a common mode output potential of the first integrator. The second integrator samples and integrates an output of the second switch circuit. The quantizer single-bit-quantizes an output of the second integrator to provide the output as a digital signal output. The digital-to-analog converter receives an output of the quantizer and provides the output as an analog signal output. Each of the first and second integrators receives and integrates an output of the digital-to-analog converter with cross-coupling.
    • 模数转换器包括第一开关电路,第一积分器,第二开关电路,第二积分器,量化器和数模转换器。 第一开关电路接收外部模拟信号,反相输出模拟信号,并以正相输出模拟信号。 第一个积分器接收和积分模拟信号与交叉耦合。 第二开关电路输出第一积分器的输出和第一积分器的共模输出电位。 第二个积分器对第二开关电路的输出进行采样和积分。 量化器对第二积分器的输出进行单比特量化,以将输出提供为数字信号输出。 数模转换器接收量化器的输出,并将输出提供为模拟信号输出。 第一和第二积分器中的每一个接收和积分数模转换器的输出与交叉耦合。
    • 39. 发明授权
    • Connection-oriented network using distributed network resources and
predetermined VPIs for fast VC establishment
    • 面向连接的网络采用分布式网络资源和预定的VPI,用于快速建立VC
    • US6108708A
    • 2000-08-22
    • US859712
    • 1997-05-21
    • Atsushi Iwata
    • Atsushi Iwata
    • H04M3/00H04L12/28H04L12/70H04M7/00G06F15/173
    • H04L12/2854
    • In a connection-oriented network, a normal signaling packet is sent from a source user to the network. A first virtual path identifier (VPI) is determined at a first node of the network according to a destination address in the packet, and the first VPI is inserted into the packet, and forwarded to the second node, where it determines a second VPI according to the packet's destination address, adds the second VPI to the first VPI in the packet to produce a source route, and forwards the normal signaling packet to a destination user. The destination user returns an acknowledgment (ACK) packet to the source user, containing the source route. In response to the ACK, the source user stores the source route contained in the packet into a source route table, and selects an initial VPI and an initial virtual channel identifier (VCI) from a copy of network resource, and sends a fast signaling packet, containing the source route, the initial VPI and VCI. At the first node, a first VCI is selected according to the first VPI in the source route of the fast signaling packet, the initial VPI/IVCI in the packet are mapped to the first VPI/VCI, and the initial VCI in the packet is overwritten with the first VCI, and the packet is forwarded to the second network node, where a second VCI is selected according to the second VPI in the source route of the packet, and the first VPI/VCI in the packet are mapped to the second VPI/VCI, and the first VCI in the packet is overwritten with the second VCI, and the packet is forwarded to the destination user.
    • 在面向连接的网络中,从源用户向网络发送正常的信令分组。 根据分组中的目的地地址在网络的第一节点处确定第一虚拟路径标识符(VPI),并将第一VPI插入到分组中,并将其转发到第二节点,在该第二节点确定第二VPI, 对分组的目的地地址,将第二VPI添加到分组中的第一VPI以产生源路由,并将正常信令分组转发给目的用户。 目标用户向源用户返回包含源路由的确认(ACK)数据包。 响应于ACK,源用户将分组中包含的源路由存储到源路由表中,并从网络资源的副本中选择初始VPI和初始虚拟信道标识符(VCI),并发送快速信令分组 ,包含源路由,初始VPI和VCI。 在第一节点处,根据快速信令分组的源路由中的第一VPI选择第一VCI,分组中的初始VPI / IVCI映射到第一VPI / VCI,分组中的初始VCI为 被第一VCI覆盖,并且该分组被转发到第二网络节点,其中根据分组的源路由中的第二VPI选择第二VCI,并且分组中的第一VPI / VCI被映射到第二VCI VPI / VCI,并且分组中的第一VCI被第二VCI覆盖,并且该分组被转发到目的用户。
    • 40. 发明授权
    • Non-broadcast multi-access network system capable of carrying out
transmission of a Next Hop Resolution Protocol packet without setting
internet protocol addresses
    • 能够在不设置因特网协议地址的情况下进行下一跳解决协议分组的传输的非广播多址网络系统
    • US6047329A
    • 2000-04-04
    • US911335
    • 1997-08-14
    • Koichi HorikawaAtsushi Iwata
    • Koichi HorikawaAtsushi Iwata
    • H04L29/06H04L12/46H04L12/66H04L12/70H04L12/701H04L29/12H04Q11/04H04L12/56
    • H04L29/12018H04L12/4608H04L29/12009H04L61/10H04Q11/0478H04L2012/563H04L2012/5638
    • A non-broadcast multi-access network system comprises a plurality of network servers at least a specific one of which servers employs Next Hop Resolution Protocol for converting a network layer address into a corresponding data link layer address. The specific network server comprises a routing table access section (102) for accessing a routing table to refer to the routing table representative of a routing of a network layer. An NHRP server table (103) stores server address information of at least a particular one of the network servers and network layer address information of the network layer managed by the particular network server as an address set. An NHRP server processing section (101) is supplied with a Next Hop Resolution Protocol packet having a destination network layer address for accessing the NHRP server table to judge whether or not the destination network layer address exists in the address set. The NHRP server processing section transmits the Next Hop Resolution Protocol packet to the particular network server when the destination network layer address exists in the address set. The NHRP server processing section controls the routing table access section to make the routing table access section refer to the routing table when the destination network layer address does not exist in the address set.
    • 非广播多址网络系统包括多个网络服务器,至少其中一个服务器采用下一跳解决协议,用于将网络层地址转换为对应的数据链路层地址。 特定网络服务器包括用于访问路由表以参考表示网络层的路由的路由表的路由表访问部分(102)。 NHRP服务器表(103)存储至少特定的一个网络服务器的服务器地址信息和由特定网络服务器管理的网络层的网络层地址信息作为地址集。 向NHRP服务器处理部(101)提供具有用于访问NHRP服务器表的目的地网络层地址的下一跳解决协议分组,以判断目的地网络层地址是否存在于地址集中。 当地址集中存在目的网络层地址时,NHRP服务器处理部分将下一跳解决协议分组传送到特定网络服务器。 当目的网络层地址不存在于地址集中时,NHRP服务器处理部分控​​制路由表访问部分使路由表访问部分参考路由表。