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公开(公告)号：US4145750A
公开(公告)日：1979-03-20
申请号：US816928
申请日：1977-07-19
申请人： Shigeru Yoshizawa , Yutaka Sugita , Nobuo Saito , Yuji Arai , Nakahiko Yamaguchi
发明人： Shigeru Yoshizawa , Yutaka Sugita , Nobuo Saito , Yuji Arai , Nakahiko Yamaguchi
CPC分类号： G11C19/085
摘要： A field access magnetic bubble memory device including a memory chip applied with an in-plane magnetic field at need is disclosed. At a transient stop operation of the device before its interrupted state, an in-plane field is removed after it has been held for a predetermined period following the cessation of rotation thereof. The in-plane field may be increased upon the cessation of rotation thereof. At a transient start operation of the device after the interrupted state, an in-plane field having no rotation and the same direction as at the transient stop operation is applied for a predetermined period before the initiation of rotation thereof. The applied in-plane field may be increased upon the initiation of rotation thereof.
摘要翻译： 公开了一种包括在需要时应用平面内磁场的存储芯片的磁场存取磁气泡存储装置。 在设备在其中断状态之前的瞬时停止操作中，在停止旋转之后的预定时间内，移除平面内场。 平面内场可以在其旋转停止时增加。 在中断状态之后的装置的瞬时启动操作中，在其开始转动之前的预定时间内施加不具有旋转和与瞬时停止操作相同方向的平面内场。 所施加的面内场可以在其旋转开始时增加。
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公开(公告)号：US4233668A
公开(公告)日：1980-11-11
申请号：US946864
申请日：1978-09-29
CPC分类号： G11C29/003 , G11C19/0875
摘要： Method and apparatus for testing a magnetic bubble memory are disclosed wherein a most severe magnetic bubble domain arrangement which fully causes the ununiformity of magnetic interaction between magnetic bubble domains is experimentally determined, and a basic pattern [P] and a test information pattern determining an arrangement of the basic patterns [P] and complementary patterns [P] thereof for realizing that magnetic bubble domain arrangement are stored in memory units, respectively, and the basic patterns [P] and the complementary patterns [P] are sequentially read out in accordance with the test information pattern to generate magnetic bubble domain trains in a storage area of the magnetic bubble memory. The magnetic bubble domain trains are then read out by a magnetic bubble detector and the read-out signals are converted to logical signals by a sense amplifier unit and the logical signals are synchronized with logical signals corresponding to the test information pattern and compared therewith to produce an identity or non-identity signal and thus the disclosed method and apparatus for testing the magnetic bubble memory can exactly evaluate a memory characteristic of the magnetic bubble memory.
摘要翻译： 公开了用于测试磁性气泡存储器的方法和装置，其中完全导致磁性气泡区域之间的磁性相互作用的不均匀性的最严重的磁性气泡区域布置被实验地确定，并且确定基本图案[P]和确定布置的测试信息图案 基本图案[P]和互补图案[P]分别用于实现磁性气泡结构排列存储在存储单元中，基本图案[P]和互补图案[P]按照 在气泡存储器的存储区域中产生磁泡畴列的测试信息模式。 然后通过磁性气泡检测器读出磁性气泡畴列，并且通过读出放大器单元将读出的信号转换成逻辑信号，并且逻辑信号与对应于测试信息图案的逻辑信号同步并与之进行比较以产生 身份或非身份信号，因此所公开的用于测试磁性气泡存储器的方法和装置可以精确地评估磁性气泡存储器的存储特性。
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公开(公告)号：US4101971A
公开(公告)日：1978-07-18
申请号：US717377
申请日：1976-08-24
CPC分类号： H01F10/06 , G11C19/0858
摘要： A magnetic bubble information writing device in which a conductor loop is disposed on the magnetic bubble propagation circuit and in which magnetic bubbles are generated by sending pulse current through the conductor loop, the device having a means which after having sent the bubble generating pulse current through the conductor loop, sends pulse current for annihilating stray bubbles through the same, the stray bubble annihilating pulse current having a polarity opposite to that of the bubble generating pulse current.
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公开(公告)号：US4101970A
公开(公告)日：1978-07-18
申请号：US703604
申请日：1976-07-08
申请人： Nobuo Saito , Shigeru Yoshizawa , Takashi Toyooka
发明人： Nobuo Saito , Shigeru Yoshizawa , Takashi Toyooka
CPC分类号： G11C19/085
摘要： In a magnetic bubble module comprising magnetic bubble chips disposed on substrates and driving coils surrounding the magnetic bubble chips, at least one of the substrates extends from the inside to the outside of the coils and serves as a heat transfer plate. The heat transfer plate includes at least one metal foil having a thickness smaller than a skin depth of the metal.
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5.发明授权Shift register type memory device consisting of a plurality of memory chips 失效由多个存储器芯片组成的移位寄存器型存储器件
公开(公告)号：US4168534A
公开(公告)日：1979-09-18
申请号：US786503
申请日：1977-04-11
申请人： Shigeru Yoshizawa , Nobuo Saito
发明人： Shigeru Yoshizawa , Nobuo Saito
CPC分类号： G11C29/86 , G11C19/0875 , G11C19/287
摘要： In a shift register type memory device wherein a plurality of chips are connected to a single sense amplifier and wherein data to be stored is cyclically written into the chips, then when a predetermined loop within a chip for stored designated data is defective, the data is not stored in a loop within the chip adjacent to the defective loop, but is stored in a loop to be subsequently read out in a chip to be read out subsequently to the chip having the defective loop.
摘要翻译： 在移位寄存器型存储器件中，其中多个芯片连接到单个读出放大器，并且其中要存储的数据被循环地写入到芯片中，则当用于存储的指定数据的芯片内的预定回路有缺陷时，数据是 不存储在与缺陷回路相邻的芯片内的循环中，而是存储在循环中以随后在芯片中读出，以便随后读取具有缺陷回路的芯片。
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公开(公告)号：US4290117A
公开(公告)日：1981-09-15
申请号：US13066
申请日：1979-02-21
申请人： Mamoru Sugie , Noboru Yamaguchi , Koichi Mayama , Yuzo Kita , Shigeru Yoshizawa , Nobuo Saito , Atsushi Asano
发明人： Mamoru Sugie , Noboru Yamaguchi , Koichi Mayama , Yuzo Kita , Shigeru Yoshizawa , Nobuo Saito , Atsushi Asano
CPC分类号： G11C29/86 , G11C19/0875
摘要： In a memory device which has a plurality of recirculating type storage loops and in which information of the same addresses of the respective storage loops can be read and written in parallel, a memory device wherein information representing whether or not the corresponding storage loop is a bad or defective loop is written in a specified address of each of the storage loops.
摘要翻译： 在具有多个再循环型存储环路并且可以并行地读取和写入相应存储环路的相同地址的信息的存储装置中，存储装置，其中表示对应的存储环路是否为坏的信息 或故障循环写入每个存储循环的指定地址。
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公开(公告)号：US3943497A
公开(公告)日：1976-03-09
申请号：US268185
申请日：1972-06-27
CPC分类号： G11C19/085
摘要： A bubble domain driving apparatus is provided in which a large memory device with a storage capacity of 256 megabits, for example, is divided into 64 smaller memory elements, each thereof comprising one or plurality of thin magnetic film strips for bubble domain, and each of the 4-megabit smaller memory elements is provided with its own coils for applying in the plane thereof bubble domain driving rotating fields with the coils adapted to be selectively energized.
摘要翻译： 提供了一种气泡域驱动装置，其中具有例如256兆位存储容量的大存储器件被分成64个较小的存储元件，每个存储器元件包括一个或多个用于气泡域的薄磁片条， 4兆位较小的存储元件设置有其自己的线圈，用于在其平面中施加气泡域驱动旋转场，其中线圈适于被选择性地通电。
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公开(公告)号：US4247911A
公开(公告)日：1981-01-27
申请号：US29056
申请日：1979-04-11
申请人： Shigeru Yoshizawa , Hirokazu Aoki , Shinsaku Chiba , Koichi Mayama , Takashi Toyooka , Nobuo Saito
发明人： Shigeru Yoshizawa , Hirokazu Aoki , Shinsaku Chiba , Koichi Mayama , Takashi Toyooka , Nobuo Saito
IPC分类号： G11C19/08
CPC分类号： G11C19/085
摘要： The present invention provides an improved method and apparatus for driving a magnetic bubble device, in which a d-c voltage supply and drive coils are connected to a bridge circuit consisting of four bi-directional switches, and alternating currents with steps (such as currents consisting of triangular waves or trapezoidal waves) are produced in the drive coils by suitably controlling the turn on or off of the bi-directional switches. As a result, the d-c level in the alternating current is not shifted by the variation in width of pulses which control the opening and closing of the bi-directional switches, and the magnetic bubble device is provided with a greatly improved operation margin.
摘要翻译： 本发明提供了一种用于驱动磁性气泡装置的改进方法和装置，其中直流电压源和驱动线圈连接到由四个双向开关组成的桥接电路，并且具有步进的交流电（例如由 三角波或梯形波）通过适当地控制双向开关的导通或关断而在驱动线圈中产生。 结果，交流电流中的d-c电平不会由于控制双向开关的打开和关闭的脉冲宽度的变化而偏移，并且提供了大大改善的操作余量的磁性气泡装置。
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公开(公告)号：US4133043A
公开(公告)日：1979-01-02
申请号：US853276
申请日：1977-11-21
申请人： Minoru Hiroshima , Shigeru Yoshizawa , Nobuo Saito , Atsushi Asano , Hiroshi Suehiro , Minoru Saitoh , Keisuke Mise
发明人： Minoru Hiroshima , Shigeru Yoshizawa , Nobuo Saito , Atsushi Asano , Hiroshi Suehiro , Minoru Saitoh , Keisuke Mise
CPC分类号： G11C19/0875
摘要： A shift register type memory having major and minor loops, wherein the number of bits of the major loop is large enough to permit data of at least two blocks to simultaneously exist in the major loop when one block is constituted of data of bits the number of which is equal to the number of the minor loops, and wherein before a particular block having been transferred out from the minor loops to the major loop is again transferred in to the minor loops after travelling round the major loop, the next block is transferred out from the minor loops to the major loop.
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公开(公告)号：US4120042A
公开(公告)日：1978-10-10
申请号：US731317
申请日：1976-10-12
申请人： Masuo Kasai , Shigeru Yoshizawa , Minoru Hiroshima
发明人： Masuo Kasai , Shigeru Yoshizawa , Minoru Hiroshima
CPC分类号： G11C19/0858
摘要： A magnetic bubble information writing device capable of carrying out writing without erasing old information representing either "0" or "1" at a location, where new information is to be written, by means of only a single hairpin-like conductor loop is disclosed, in which the single hairpin-like conductor loop is disposed at a projecting portion of permalloy patterns, enclosing the portion.
摘要翻译： 公开了一种磁气泡信息写入装置，其能够仅通过仅一个发夹状导体环路在不消除表示“0”或“1”的旧信息的情况下进行写入，其中新信息将要被写入的位置， 其中单个发夹状导体环设置在坡莫合金图案的突出部分，包围该部分。
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