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    • 1. 发明申请
    • Memory and Operation Method Therefor
    • 记忆及其操作方法
    • US20110085378A1
    • 2011-04-14
    • US12576323
    • 2009-10-09
    • Hsin-Yi HoChun-Hsiung HungYun-Chen Chou
    • Hsin-Yi HoChun-Hsiung HungYun-Chen Chou
    • G11C16/04G11C16/06
    • G11C11/5642G11C16/26G11C16/349
    • In an operation method for a memory including a plurality of memory cells, a first reading is performed on the memory cells by applying a reference voltage; the reference voltage is moved if it is checked that the first reading result is not correct; a second reading is performed on the memory cells by applying the moved reference voltage; a first total number of a first logic state in the first reading is compared with a second total number of the first logic state in the second reading if it is checked that the second reading result is not correct; and the moving of the reference voltage is stopped if the first reading result has the same number of the first logic state as the second reading result, and the moved reference voltage is stored as a target reference voltage.
    • 在包括多个存储单元的存储器的操作方法中,通过施加参考电压对存储器单元执行第一读取; 如果检查到第一读取结果不正确,则移动参考电压; 通过施加移动的参考电压对存储器单元执行第二读取; 如果检查到第二读取结果不正确,则将第一读取中的第一逻辑状态的第一总数与第二读取中的第一逻辑状态的第二总数进行比较; 并且如果第一读取结果具有与第二读取结果相同数量的第一逻辑状态,并且移动的参考电压被存储为目标参考电压,则参考电压的移动停止。
    • 4. 发明授权
    • Apparatus and system for reading non-volatile memory with dual reference cells
    • 用于读取具有双参考单元的非易失性存储器的装置和系统
    • US06665216B1
    • 2003-12-16
    • US10202245
    • 2002-07-23
    • Hsin-Yi HoNai-Ping KuoChun-Hsiung HungGin-Laing ChenWen-Chiao HoHo-Chun Liou
    • Hsin-Yi HoNai-Ping KuoChun-Hsiung HungGin-Laing ChenWen-Chiao HoHo-Chun Liou
    • G11C700
    • G11C16/28G11C7/062
    • A system for reading data in a memory cell includes three comparators, each of which has two inputs. A first reference cell having a low reference voltage is coupled to one input of the first comparator. A second reference cell having a high reference voltage is coupled to one input of the second comparator. A memory cell having a memory cell voltage is coupled to the other input of the first and second comparators. One input of the third comparator is coupled to the first comparator's output signal, which includes a difference voltage between the memory cell voltage and the low reference voltage. The other input of the third comparator is coupled to the second comparator's output signal, which includes a difference voltage between the memory cell voltage and the high reference voltage. A method and apparatus for reading data in a memory cell also are described.
    • 用于读取存储器单元中的数据的系统包括三个比较器,每个比较器具有两个输入。 具有低参考电压的第一参考单元耦合到第一比较器的一个输入端。 具有高参考电压的第二参考单元耦合到第二比较器的一个输入端。 具有存储单元电压的存储单元耦合到第一和第二比较器的另一个输入端。 第三比较器的一个输入耦合到第一比较器的输出信号,其包括存储单元电压和低参考电压之间的差电压。 第三比较器的另一输入端耦合到第二比较器的输出信号,其包括存储单元电压和高参考电压之间的差电压。 还描述了一种用于在存储器单元中读取数据的方法和装置。