Information readout apparatus
    3.
    发明授权
    Information readout apparatus 失效
    信息读出装置

    公开(公告)号:US4494157A

    公开(公告)日:1985-01-15

    申请号:US405568

    申请日:1982-08-05

    申请人: Kenzo Ina Teruya Hara

    发明人: Kenzo Ina Teruya Hara

    摘要: An information readout apparatus reduces an effective wait time and shortens access time when information recorded on a magnetic disc is read out by effectively utilizing a wait time of a disc rotation. When a sector on the magnetic disc on which a magnetic head is currently positioned is between a start address and an end address, information behind the current sector is buffered and the sequence of the buffered information is rearranged as required and read out so that overlapped readout of the previously read information from the magnetic disc is prevented to shorten the access time. The current sector address is compared with the start address and the end address to process the information.

    摘要翻译: 信息读取装置通过有效地利用盘旋转的等待时间来读出记录在磁盘上的信息,从而缩短了有效的等待时间并缩短了访问时间。 当磁头当前位于磁盘上的扇区位于起始地址和结束地址之间时,缓冲当前扇区后面的信息,并根据需要重新排列缓冲信息的顺序并读出,以便重叠读出 从磁盘预先读取的信息被阻止以缩短访问时间。 将当前扇区地址与起始地址和结束地址进行比较以处理信息。

    Information processing system
    4.
    发明授权
    Information processing system 失效
    信息处理系统

    公开(公告)号:US4480277A

    公开(公告)日:1984-10-30

    申请号:US406314

    申请日:1982-08-09

    申请人: Teruya Hara Kenzo Ina

    发明人: Teruya Hara Kenzo Ina

    摘要: An information processing system processes identification of a track address and a sector address, control of timing, control of reading and writing of data and error checking with reduced intervention of a CPU to a magnetic disc unit so that the throughput of the CPU is increased and performance for data processing is improved. A predetermined number of sectors are processed in sequence, and a greater number of sectors than the number of sectors in one track can be processed by hardware implementation. This system can also control magnetic disc units having different formats.

    摘要翻译: 信息处理系统通过减少CPU对磁盘单元的干预来处理轨道地址和扇区地址的识别,定时控制,数据的读取和写入的控制以及错误检查,使得CPU的吞吐量增加,并且 数据处理性能得到提高。 依次处理预定数量的扇区,并且可以通过硬件实现来处理比一个轨道中的扇区数更多的扇区数。 该系统还可以控制具有不同格式的磁盘单元。