Memory system
    1.
    发明授权
    Memory system 失效
    内存系统

    公开(公告)号:US4558446A

    公开(公告)日:1985-12-10

    申请号:US491590

    申请日:1983-05-04

    CPC分类号: G11B20/1883 G11B2220/20

    摘要: In prior art memory systems, if a defective area of the recording medium is accessed for reading, an alternative area for compensating the defective area is read out. According to this invention, information recorded in the alternative area is stored in advance in a separate high-speed memory device and it is read out when the alternative area is requested to be read out.

    摘要翻译: 在现有技术的存储器系统中,如果访问记录介质的缺陷区域以进行读取,则读出用于补偿缺陷区域的替代区域。 根据本发明,记录在替代区域中的信息被预先存储在单独的高速存储设备中,并且当请求读出替代区域时,它被读出。

    System for retrieving distributed information in a data base
    2.
    发明授权
    System for retrieving distributed information in a data base 失效
    用于在数据库中检索分布式信息的系统

    公开(公告)号:US4803614A

    公开(公告)日:1989-02-07

    申请号:US828342

    申请日:1986-02-11

    摘要: A distributed information retrieval system in which the central computer is connected to a plurality of terminal devices and the management information includes a set of retrieval keys kept on the central computer side where the primary retrieval is achieved. The secondary retrieval thereafter is executed on the terminal side to reduce the load imposed on the central computer and to improve the response time for forwarding an answer to the user of the retrieval system.

    摘要翻译: 一种分布式信息检索系统,其中中央计算机连接到多个终端设备,并且管理信息包括保存在中央计算机侧的一组检索键,其中主要检索被实现。 之后的次要检索在终端侧执行,以减轻施加在中央计算机上的负担,并且改善用于将答复转发给检索系统的用户的响应时间。