Dynamic semiconductor memory device and method for controllig the
precharge/refresh and access modes thereof
    2.
    发明授权
    Dynamic semiconductor memory device and method for controllig the precharge/refresh and access modes thereof 失效
    动态半导体存储器件和用于控制其预充电/刷新和存取模式的方法

    公开(公告)号:US4907199A

    公开(公告)日:1990-03-06

    申请号:US271489

    申请日:1988-11-15

    CPC分类号: G11C11/4094 G11C11/406

    摘要: A dynamic semiconductor memory device is divided into a plurality of blocks. An operation of the semiconductor memory device is in either of a normal mode and a refresh mode, depending on the level of a refresh signal. In the normal mode, at an off time period, a potential on a bit line pair is equalized and a precharge potential is applied to the bit line pair. At the access time, equalizing of the potential on the bit line pair and supply of the precharge potential are stopped in a selected block and then, a word line driving signal is raised. On the other hand, in the refresh mode, at the off time period, the potential on the bit line pair is held at "H" and "L" levels by a sense amplifier, so that the potential on the bit line pair is not equalized and the precharge potential is not supplied. On this occasion, a precharge potential generating circuit is electrically disconnected from a power supply. At the time of refresh operation, the sense amplifier is rendered inactive in the selected block, so that the potential on the bit line pair is equalized and then, the word line driving signal is raised.

    摘要翻译: 动态半导体存储器件被分成多个块。 根据刷新信号的电平,半导体存储器件的操作是正常模式和刷新模式。 在正常模式下,在关闭时间段,位线对上的电位被均衡,并且预充电电位被施加到位线对。 在访问时间,在所选择的块中停止位线对上的电位的均衡和预充电电势的供给,然后提高字线驱动信号。 另一方面,在刷新模式下,在关闭时间段,位线对上的电位由读出放大器保持在“H”和“L”电平,使得位线对上的电位不是 均衡,不提供预充电电位。 在这种情况下,预充电电位产生电路与电源电气断开。 在刷新操作时,读出放大器在所选择的块中变为无效,使位线对上的电位相等,然后提高字线驱动信号。

    Semiconductor memory device with address transition detection and timing
control
    4.
    发明授权
    Semiconductor memory device with address transition detection and timing control 失效
    具有地址转换检测和定时控制的半导体存储器件

    公开(公告)号:US4843596A

    公开(公告)日:1989-06-27

    申请号:US124554

    申请日:1987-11-24

    IPC分类号: G11C11/401 G11C7/22 G11C8/18

    CPC分类号: G11C8/18 G11C7/22

    摘要: A novel semiconductor memory device includes an address detection circuit that produces a short-width pulse in response to the detection of an address change. A column decoder-activating signal generator detects the start of the short-width pulse and in response generates a column decoder-activating signal. A second detection circuit detects the conclusion of the short-width pulse and generates a second pulse that triggers a preamplifier-activating signal that activates a preamplifier and latches the data that is present on the input/output line. A reset signal generator produces a reset signal to deactivate the column decoder-activating signal and to delay the preamplifier-activating signal. The preamplifier-activating signal generator and the reset signal generator are reset while the first pulse is output.

    摘要翻译: 一种新颖的半导体存储器件包括响应于地址变化的检测而产生短宽度脉冲的地址检测电路。 列解码器激活信号发生器检测短宽度脉冲的开始,并且响应于产生列解码器激活信号。 第二检测电路检测短宽度脉冲的结论,并产生触发前置放大器激活信号的第二脉冲,其激活前置放大器并锁存输入/输出线上存在的数据。 复位信号发生器产生复位信号以停用列解码器激活信号并延迟前置放大器激活信号。 当输出第一个脉冲时,前置放大器激活信号发生器和复位信号发生器被复位。

    Random access memory with reduced access time in reading operation and
operating method thereof
    8.
    发明授权
    Random access memory with reduced access time in reading operation and operating method thereof 失效
    随机存取存储器,其读取操作的访问时间减少及其操作方法

    公开(公告)号:US4984206A

    公开(公告)日:1991-01-08

    申请号:US372441

    申请日:1989-06-27

    摘要: A dynamic random access memory comprises a pair of write-in data transferring lines (IL, IL), a pair of read-out data transferring lines (OL, OL) and a current-mirror type sense amplifier comprising (30) CMOS transistors. The current-mirror type amplifier (30) is connected between a plurality of bit line pairs (BL, BL) and the pair of read-out data transferring lines (OL, OL). At the time of data reading, the pair of write-in data transferring lines (IL, IL) is connected to the corresponding bit line pair (BL, BL) in response to a write-in column decoded signal (YW) obtained by ANDing a column decoded signal (CA) with a write-in instruction signal (W).

    摘要翻译: 动态随机存取存储器包括一对写入数据传输线(IL,& Upbar&I),一对读出数据传输线(OL,& upbar&O)和电流镜型读出放大器,包括(30)CMOS 晶体管。 电流镜式放大器(30)连接在多个位线对(BL,& B和B)与一对读出数据传输线(OL,& upbar&O)之间。 在数据读取时,响应于获得的写入列解码信号(YW),一对写入数据传输线(IL,& upbar&I)被连接到对应的位线对(BL,& B和B) 通过将列解码信号(CA)与写入指令信号(W)进行AND运算。

    Diagnostic imaging support equipment
    10.
    发明授权
    Diagnostic imaging support equipment 有权
    诊断成像支持设备

    公开(公告)号:US08731263B2

    公开(公告)日:2014-05-20

    申请号:US12032266

    申请日:2008-02-15

    IPC分类号: G06K9/00

    CPC分类号: G06F19/321 G06F19/00

    摘要: The present invention comprises: a data storage unit for storing series image data obtained by medical image acquisition equipment and object data containing image acquisition conditions for the series image data and the specific information for specifying other series image data related to the series image data; an information management unit for generating a thumbnail image that represents combination information of the presently obtained series image data and the past related series image data by referring to the object data; and a display unit for displaying the thumbnail image.

    摘要翻译: 本发明包括:数据存储单元,用于存储由医学图像获取设备获得的系列图像数据和包含用于串行图像数据的图像获取条件的对象数据和用于指定与该系列图像数据相关的其他系列图像数据的特定信息; 信息管理单元,用于通过参照对象数据生成表示当前获得的串联图像数据和过去相关串联图像数据的组合信息的缩略图图像; 以及用于显示缩略图图像的显示单元。