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104 条记录 (耗时 0.017 秒)

    CONCURRENT ACCESS TO A MEMORY POOL SHARED BETWEEN A BLOCK ACCESS DEVICE AND A GRAPH ACCESS DEVICE
    1.
    发明公开
    CONCURRENT ACCESS TO A MEMORY POOL SHARED BETWEEN A BLOCK ACCESS DEVICE AND A GRAPH ACCESS DEVICE 审中-公开
    同时触摸一之间的块存取设备和图形存取设备共享内存池

    公开(公告)号：EP2494452A2

    公开(公告)日：2012-09-05

    申请号：EP10828870.5

    申请日：2010-10-26

    申请人： Wearable, Inc.

    发明人： KLAPMAN, Matthew, H. ,  MASTENBROOK, Brian, E.

    IPC分类号： G06F13/16 ,  G06F13/368 ,  G06F13/38

    CPC分类号： G06F3/061 ,  G06F3/0622 ,  G06F3/0655 ,  G06F3/0673 ,  G06F17/30091

    摘要： A graph access device and block access device can simultaneously access a memory pool shared between the devices. The memory pool may include one or more memory arrays accessed as a single logical memory. The block access device accesses the memory pool as a flat array of memory blocks, and the graph access device accesses the memory pool as hierarchical file system. The simultaneous access is accomplished by monitoring one or more memory block access operations performed by the block access device, while it is accessing the memory pool. The block access operations are translated into a graph data structure including a plurality of pointers mapping the memory pool to the hierarchical file system. A processor regulates access to the memory pool, and is configured to permit the graph access device to access the memory pool concurrently with the block access device, in accordance with the graph data structure.

    DEVICE OPERABLE AS BOTH A HOST AND A NON-HOST (I.E. DUAL-MODE DEVICE)
    3.
    发明授权
    DEVICE OPERABLE AS BOTH A HOST AND A NON-HOST (I.E. DUAL-MODE DEVICE) 有权
    设备作为主机和非主机所使用（例如DUAL-MODE SETUP）

    公开(公告)号：EP1550045B1

    公开(公告)日：2009-09-30

    申请号：EP03773723.6

    申请日：2003-09-30

    申请人： Nokia Corporation

    发明人： LAIHO, Kimmo

    IPC分类号： G06F13/368

    CPC分类号： G06F1/266 ,  G06F1/1632 ,  G06F13/4081 ,  H04M1/72527

    摘要： An accessory device (12), such as a DVB-T receiver is operable as a USB host to a mobile telephone (11) to which it is connected via a USB bus (13). When acting as a host, the accessory device (12) provides a 4V supply voltage on VBUS to the mobile telephone, which includes a regulator (18) regulating the voltage to 3.3 Volts. When a host device (PC) is also connected to the USB bus (13), the voltage on VBUS rises, and this is detected by a comparator (21). In response, the accessory device (12) sends a USB reset command sends its USB lines tri-state, and ceases to supply VBUS, thereby relinquishing host status. Loss of the PC (10) is detected by detecting a low voltage on VBUS, following which the accessory device reassumes host status.

    Fast arbitration scheme for a bus
    6.
    发明公开
    Fast arbitration scheme for a bus 有权
    Schnelles Busarbitrierungsschema

    公开(公告)号：EP1195687A2

    公开(公告)日：2002-04-10

    申请号：EP01308531.1

    申请日：2001-10-05

    申请人： Broadcom Corporation

    发明人： Rowlands, Joseph B. ,  Anderson, David L. ,  Desai, Shailendra S.

    IPC分类号： G06F13/368

    CPC分类号： G06F13/1652 ,  G06F13/368

    摘要： A distributed arbitration scheme includes arbiters with each agent. The arbiters receive request signals indicating which agents are arbitrating for the bus. Additionally, the agent currently using the bus broadcasts an agent identifier assigned to that agent. The arbiters receive the agent identifier and use the agent identifier as an indication of the winner of the preceding arbitration. Accordingly, the arbiters determine if the corresponding agent wins the arbitration, but may not attempt to calculate which other agent wins the arbitration. In one embodiment, the arbiter maintains a priority state indicative of which of the other agents are higher priority than the corresponding agent and which of the other agents are lower priority. In one implementation, the bus may be a split transaction bus and thus each requesting agent may include an address arbiter and each responding agent may include a data arbiter.

    摘要翻译： 分布式仲裁方案包括每个代理的仲裁者。 仲裁者接收指示哪些代理正在为总线仲裁的请求信号。 此外，当前使用总线的代理广播分配给该代理的代理标识符。 仲裁者接收代理标识符，并使用代理标识符作为前一仲裁的获胜者的指示。 因此，仲裁人确定相应的代理人是否赢得仲裁，但不得尝试计算哪个其他代理人赢得仲裁。 在一个实施例中，仲裁器保持指示其他代理中的哪一个比相应代理更高优先级的优先级状态，而其他代理中的哪一个优先级较低。 在一个实现中，总线可以是分割事务总线，因此每个请求代理可以包括地址仲裁器，并且每个响应代理可以包括数据仲裁器。

    COMMUNICATION BUS SYSTEM WITH MITIGATION OF SLAVE STATION LOCKING PROBLEM
    7.
    发明授权
    COMMUNICATION BUS SYSTEM WITH MITIGATION OF SLAVE STATION LOCKING PROBLEM 失效
    为了减少后续站闭锁问题的通信总线系统

    公开(公告)号：EP0660956B1

    公开(公告)日：2001-12-19

    申请号：EP94919002.9

    申请日：1994-07-12

    申请人： D2B Systems Co. Ltd.

    发明人： HOEKSTRA, Jelle

    IPC分类号： G06F13/368 ,  H04L12/407

    CPC分类号： H04L12/413 ,  G06F13/368 ,  H04L12/403

    摘要： A multistation communication bus system accommodates master stations and slave stations, and frame based arbitration among masters. The frame is formatted upon winning arbitration transmitting a framewise organised message including locking and unlocking signalizations for locking and unlocking respectively, and addressed slave station for a duration of multiple frames of the message. This blocks a different master station from accessing a locked slave station during this duration. Additionally, the different master station for upon detecting the blocked executes a first sequence of relatively frequent retry undertakings at a combined time length that is substantially less than a standard maximum value of said duration. Next follows, if required, a second sequence of relatively infrequent retry undertakings at a combined time length that is more than a standard maximum value of the duration.