Two store data storage apparatus having a prefetch system for the second
store
    6.
    发明授权
    Two store data storage apparatus having a prefetch system for the second store 失效
    具有用于第二商店的预取系统的两个店铺数据存储装置

    公开(公告)号:US4729092A

    公开(公告)日:1988-03-01

    申请号:US735257

    申请日:1985-05-17

    申请人: John Lupton

    发明人: John Lupton

    CPC分类号: G06F9/262

    摘要: Data storage apparatus comprises a main store, for example a microprogram store, with an associated address generating circuit. In order to extend the capacity of the store, an additional store is provided, but because of physical limitations this is remote from the main store. To reduce delays in accessing data items from the additional store, a prediction circuit predicts the address of the next item to be required from the additional store and prefetches it. A control circuit checks whether the prefetched item is the correct one and, if it is not, causes a temporary hold-up in the operation of the address generation circuit to allow the correct data item to be fetched.

    摘要翻译: 数据存储装置包括具有相关联的地址产生电路的主存储器,例如微程序存储器。 为了扩展商店的容量,还提供了一个额外的商店,但由于物理限制,这远离主商店。 为了减少从附加存储器访问数据项的延迟,预测电路从附加存储器预测要求的下一个项目的地址并预取它。 控制电路检查预取项目是否是正确的,如果不是,则在地址产生电路的操作中暂时停止以允许正确的数据项被取出。

    Dendrimers
    8.
    发明申请
    Dendrimers 有权
    树枝状

    公开(公告)号:US20060252963A1

    公开(公告)日:2006-11-09

    申请号:US11438570

    申请日:2006-05-22

    摘要: A compound of formula (I), where x is 3, 2 or 1, y is 0 or 1, n1 and n2, which may be the same or different, are 0 or 1 to 3, X represents a divalent mono- or poly-aromatic and/or heteroaromatic moiety, the or each Y, which may be the same or different if x is 1, represents hydrogen or an optionally substituted hydrocarbon group, Z represents an aromatic group, or an inherently at least partly conjugated dendritic molecular structure comprising one or more aromatic and/or heteroaromatic groups and, optionally, alkenylene groups, connected to each other either directly or via a carbon atom of an alkenylene group, if present, to a ring carbon atom of an (hetero) aromatic group to which more than one at least partly conjugated dendritic chain is attached, said molecular structure being connected to the remainder of the molecule via a ring carbon atom, one or more of the (hetero) aromatic rings of the dendrimers optionally being substituted, Z and/or the remainder of the molecule, excluding any groups Y, being luminescent, with the proviso that when Z represents an aromatic group y must be 1.

    摘要翻译: 式(I)的化合物,其中x为3或2或1,y为0或1,n≥1和n≥2,其可以相同或不同 是0或1至3,X表示二价单芳族或多芳族和/或杂芳族部分,如果x为1,则每个Y可以相同或不同,表示氢或任选取代的烃基, Z表示芳族基团,或固有地至少部分共轭的树枝状分子结构,其包含一个或多个芳族和/或杂芳族基团和任选的亚烯基,可以直接或经由亚链烯基的碳原子相互连接,如果 存在于与多于一个至少部分共轭的枝状链连接的(杂)芳族基团的环碳原子上,所述分子结构通过环碳原子连接到分子的其余部分,一个或多个 任选被取代的树枝状大分子的(杂)芳环,Z和/或其余部分 不包括任何基团Y的分子是发光的,条件是当Z表示芳族基团时,y必须为1。