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    • 3. 发明公开
    • DATA HOLDING APPARATUS AND DATA READ OUT METHOD
    • DATENHALTEVORRICHTUNG UND DATENAUSLESEVERFAHREN
    • EP1447909A4
    • 2006-05-24
    • EP02803509
    • 2002-11-15
    • ROHM CO LTD
    • FUJIMORI YOSHIKAZU
    • G11C8/02G11C14/00H03K3/037
    • G11C14/0072G11C14/00H03K3/0375
    • A data holding apparatus capable of holding data even when power supply is cut off and having a high reliability of data holding. A data holding apparatus (1) includes a data latch circuit (3) and a ferroelectric storage unit (5). In ferroelectric capacitors (17, 19), it is possible to store data in non-volatile manner. The ferroelectric capacitor (17) has one end connected via a transfer gate (11) to an input node (7a) of an inverter circuit (7). When data is passing, the transfer gate (11) is disconnected. Accordingly, even when the input data D changes during data passing, the change is rapidly transferred to the input node (7a). Consequently, the reliability of the latch operation is not lowered even when operated at normal operation speed.
    • 提供一种能够保持数据的数据保持装置,即使关闭电源并且保持数据的可靠性高。 数据保持装置1设置有数据锁存电路3和铁电存储部5.铁电电容器17和19能够以非易失性的方式存储数据。 铁电电容器17的一端通过传输门11与逆变器电路7的输入节点7a连接。当数据通过时,传输门11处于断开状态。 因此,即使在数据通过时输入数据D发生变化,也能够将变化快速地传送到输入节点7a,所以即使以通常的速度进行操作,闭锁动作的可靠性也不会降低。
    • 6. 发明公开
    • Two stage decoder circuit
    • Zweistufige Decodierschaltung。
    • EP0166538A2
    • 1986-01-02
    • EP85303790.1
    • 1985-05-30
    • FUJITSU LIMITED
    • Okajima, Yoshinori
    • G11C11/40H03M7/22G11C8/02
    • G11C8/10H03M7/22
    • A two-state decoder circuit including a first-stage decoder circuit (7-1 to 8-2, 9, 10, 11), for decoding upper bits (Ao to A3) of an input signal, and a second-stage decoder circuit (4, 5, 6), which is activated by receiving a selected output signal of the first-stage decoder circuit and which decodes lower bits (A4 to A 7 ) of the input signal. The first-stage decoder circuit is formed by a threshold-operation type logic circuit (11) which carries out selection or non-selection by comparing the input signal (9a, 1 Oa) with a predetermined threshold level (VR), and the second-stage decoder circuit is formed by a diode-matrix circuit (D 5 to D 8 ).
    • 包括用于解码输入信号的高位(A0至A3)的第一级解码器电路(7-1至8-2,9,10,11)的双状态解码器电路和第二级解码器电路 (4,5,6),其通过接收第一级解码器电路的选择的输出信号并且解码输入信号的低位(A4至A7)而被激活。 第一级解码器电路由阈值操作型逻辑电路(11)构成,其通过将输入信号(9a,10a)与预定阈值电平(VR)进行比较来执行选择或不选择, 级解码器电路由二极管矩阵电路(D5至D8)形成。