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    • 1. 发明授权
    • Bridge, information processing system, and access control method
    • 桥梁,信息处理系统和访问控制方法
    • US08185683B2
    • 2012-05-22
    • US12282391
    • 2007-01-11
    • Takeshi YamazakiHideyuki SaitoYuji TakahashiHideki Mitsubayashi
    • Takeshi YamazakiHideyuki SaitoYuji TakahashiHideki Mitsubayashi
    • G06F13/36G06F13/00
    • G06F13/4027H04L12/4625H04L29/12009H04L49/25H04L61/00H04L67/1097
    • Transparency of resources is provided and ordering in an access is guaranteed between nodes on a computer network. In an information processing system in which a plurality of processor units are connected to each other by a switch, a global address space is introduced into which effective addresses of the processor units are mapped and which is shared by the plurality of processor units. In response to an access request packet issued by a processor unit and designating an effective address of a target node, a bridge for routing an input and output bus of a processor unit to an input and output bus of the switch converts the effective address of the target node into a global address by appending to the packet a node identification number identifying the target node, and outputs the access request packet designating the global address to the switch. After an access request packet for a write operation is output, the bridge confirms whether the write operation is completed in a target node.
    • 提供资源的透明度,并在计算机网络上的节点之间保证访问中的顺序。 在通过交换机将多个处理器单元彼此连接的信息处理系统中,引入了全局地址空间,其中映射了处理器单元的有效地址,并且由多个处理器单元共享该地址空间。 响应于由处理器单元发出的访问请求分组并指定目标节点的有效地址,用于将处理器单元的输入和输出总线路由到交换机的输入和输出总线的桥接器转换有效地址 通过向分组附加识别目标节点的节点标识号,将目标节点分配成全局地址,并将指定全局地址的接入请求分组输出到交换机。 在输出用于写入操作的访问请求分组之后,桥接器确认目标节点中的写入操作是否完成。
    • 2. 发明授权
    • Bridge, processor unit, information processing apparatus, and access control method
    • 桥梁,处理器单元,信息处理设备和访问控制方法
    • US08006000B2
    • 2011-08-23
    • US11914170
    • 2007-01-11
    • Hideyuki SaitoTakeshi YamazakiYuji TakahashiHideki Mitsubayashi
    • Hideyuki SaitoTakeshi YamazakiYuji TakahashiHideki Mitsubayashi
    • G06F13/28G06F3/00G06F5/00G06F13/00
    • G06F12/1475G06F12/1081
    • There is provided a technique of accessing a memory of a processor from a peripheral device, thereby the security is ensured while efficiency is being pursued. An address converter 14 includes an address conversion table for converting an effective address into a physical address. The address conversion table stores the effective address to which an area in a memory of a processor unit 10 is allocated to each peripheral device 30 and identification information of an access source to which access permission is given, in association with each other. When the peripheral device 30 accesses, the address converter 14 determines to permit access to the effective address under the condition that the device identification information, included in an access request packet, by which the peripheral device 30 can be uniquely identified, matches the identification information of the access source corresponding to the effective address, in the address conversion table, designated by the access request packet.
    • 提供了从外围设备访问处理器的存储器的技术,从而在保持效率的同时确保安全性。 地址转换器14包括用于将有效地址转换为物理地址的地址转换表。 地址转换表将处理器单元10的存储器中的区域被分配给每个外围设备30的有效地址和彼此相关联地给予访问许可的访问源的标识信息。 当外围设备30访问时,地址转换器14在允许外部设备30被唯一标识的访问请求分组中包括的设备识别信息与识别信息匹配的条件下确定允许访问有效地址 的访问源对应于有效地址,在地址转换表中,由访问请求分组指定。
    • 3. 发明申请
    • BRIDGE, INFORMATION PROCESSING DEVICE , AND ACCESS CONTROL METHOD
    • 桥梁,信息处理设备和访问控制方法
    • US20090222610A1
    • 2009-09-03
    • US12282393
    • 2006-11-30
    • Takeshi YamazakiHideyuki SaitoYuji TakahashiHideki Mitsubayashi
    • Takeshi YamazakiHideyuki SaitoYuji TakahashiHideki Mitsubayashi
    • G06F13/28
    • G06F13/4027G06F13/28G06F2213/0024
    • A downstream port 22 of a bridge 20 connecting a processor unit and a peripheral device acknowledges access from the peripheral device via one of a plurality of downstream channels available for access by the peripheral device to a memory of the processor unit, the downstream channels being virtual channels provided for interfacing with the peripheral device. The router 24 routes the access to upstream channels each assigned a memory bandwidth available for access to the memory, the upstream channels being virtual channels supported by the processor unit. In this process, the router refers to a table storing identifiers of the downstream channels and identifiers of the upstream channels in association with each other so as to allocate to the peripheral device the upstream channel corresponding to the downstream channel used by the peripheral device, in response to the access from the peripheral device.
    • 连接处理器单元和外围设备的桥接器20的下游端口22通过可用于由外围设备访问的多个下游信道之一确认来自外围设备的访问到处理器单元的存储器,下游信道是虚拟的 提供用于与外围设备接口的通道。 路由器24将访问路由到每个分配有可用于访问存储器的存储器带宽的上游信道,上行信道是由处理器单元支持的虚拟信道。 在这个过程中,路由器是指相互关联地存储下游信道的标识符和上游信道的标识符的表,以便向外围设备分配与外围设备使用的下游信道对应的上行信道, 响应来自外围设备的访问。
    • 4. 发明授权
    • Bridge, information processor, and access control method
    • 桥梁,信息处理器和访问控制方法
    • US08095718B2
    • 2012-01-10
    • US12282393
    • 2006-11-30
    • Takeshi YamazakiHideyuki SaitoYuji TakahashiHideki Mitsubayashi
    • Takeshi YamazakiHideyuki SaitoYuji TakahashiHideki Mitsubayashi
    • G06F13/00
    • G06F13/4027G06F13/28G06F2213/0024
    • A downstream port 22 of a bridge 20 connecting a processor unit and a peripheral device acknowledges access from the peripheral device via one of a plurality of downstream channels available for access by the peripheral device to a memory of the processor unit, the downstream channels being virtual channels provided for interfacing with the peripheral device. The router 24 routes the access to upstream channels each assigned a memory bandwidth available for access to the memory, the upstream channels being virtual channels supported by the processor unit. In this process, the router refers to a table storing identifiers of the downstream channels and identifiers of the upstream channels in association with each other so as to allocate to the peripheral device the upstream channel corresponding to the downstream channel used by the peripheral device, in response to the access from the peripheral device.
    • 连接处理器单元和外围设备的桥接器20的下游端口22通过可用于由外围设备访问的多个下游信道之一来确认来自外围设备的访问到处理器单元的存储器,下游信道是虚拟的 提供用于与外围设备接口的通道。 路由器24将访问路由到每个分配有可用于访问存储器的存储器带宽的上游信道,上行信道是由处理器单元支持的虚拟信道。 在这个过程中,路由器是指相互关联地存储下游信道的标识符和上游信道的标识符的表,以便向外围设备分配与外围设备使用的下游信道对应的上行信道, 响应来自外围设备的访问。
    • 8. 发明申请
    • BRIDGE, PROCESSOR UNIT, INFORMATION PROCESSING APPARATUS, AND ACCESS CONTROL METHOD
    • 桥梁,处理器单元,信息处理装置和访问控制方法
    • US20090216921A1
    • 2009-08-27
    • US11914170
    • 2007-01-11
    • Hideyuki SaitoTakeshi YamazakiYuji TakahashiHideki Mitsubayashi
    • Hideyuki SaitoTakeshi YamazakiYuji TakahashiHideki Mitsubayashi
    • G06F3/00G06F12/02
    • G06F12/1475G06F12/1081
    • There is provided a technique of accessing a memory of a processor from a peripheral device, thereby the security is ensured while efficiency is being pursued. An address converter 14 includes an address conversion table for converting an effective address into a physical address. The address conversion table stores the effective address to which an area in a memory of a processor unit 10 is allocated to each peripheral device 30 and identification information of an access source to which access permission is given, in association with each other. When the peripheral device 30 accesses, the address converter 14 determines to permit access to the effective address under the condition that the device identification information, included in an access request packet, by which the peripheral device 30 can be uniquely identified, matches the identification information of the access source corresponding to the effective address, in the address conversion table, designated by the access request packet.
    • 提供了从外围设备访问处理器的存储器的技术,从而在保持效率的同时确保安全性。 地址转换器14包括用于将有效地址转换为物理地址的地址转换表。 地址转换表将处理器单元10的存储器中的区域被分配给每个外围设备30的有效地址和彼此相关联地给予访问许可的访问源的标识信息。 当外围设备30访问时,地址转换器14在允许外部设备30被唯一标识的访问请求分组中包括的设备识别信息与识别信息匹配的条件下确定允许访问有效地址 的访问源对应于有效地址,在地址转换表中,由访问请求分组指定。