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11. 发明授权

US4233669A Redundant bubble memory control system 失效
标题翻译：冗余气泡存储控制系统
公开(公告)号：US4233669A
公开(公告)日：1980-11-11
申请号：US897692
申请日：1978-04-19
申请人： Kazuo Furukawa , Sumio Furukawa
发明人： Kazuo Furukawa , Sumio Furukawa
IPC分类号： G11C19/08 , G11C19/28 , G11C29/00
CPC分类号： G11C29/86 , G11C19/0875 , G11C19/287
摘要： A memory control system comprises a memory unit including a plurality of chips each having a shift register type memory having a plurality of information loops, the number of chips being larger than a predetermined number, the predetermined number of bits out of those bits which are read from or written into the information loops of the respective chips at the same timing constituting a unit information; and an additional memory which stores information indicative of normal loop condition or defective loop condition for each of the information loops in each of the chips and information indicative of whether the number of normal loops in each information loop group corresponding to the bits which are read or written at the same timing is larger than said predetermined number or not. Based on the information stored in said additional memory, only the predetermined number of normal loops are selected from the information loops corresponding to the bits which are read or written at the same timing, and when the number of normal loops does not reach the predetermined number, the information loops at that timing are not used.
摘要翻译：存储器控制系统包括存储器单元，其包括多个芯片，每个芯片具有多个信息循环的移位寄存器类型存储器，所述芯片数量大于预定数量，读出的位中的预定位数在构成单位信息的相同定时从各个芯片的信息循环中写入或写入信息循环; 以及附加存储器，其存储指示每个芯片中的每个信息循环的正常环路条件或缺陷环路条件的信息，以及指示每个信息循环组中正常循环的数量是否与读取的位相对应的信息在同一时刻写入的数字大于所述预定数量。基于存储在所述附加存储器中的信息，从与在相同定时读取或写入的比特相对应的信息循环仅选择预定数量的正常循环，并且当正常循环的数量未达到预定数量时在该时间点的信息循环不被使用。

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