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    • 5. 发明授权
    • Memory circuit, a dynamic random access memory, a system comprising a memory and a floating point unit and a method for storing digital data
    • 存储器电路,动态随机存取存储器,包括存储器和浮点单元的系统以及用于存储数字数据的方法
    • US07515456B2
    • 2009-04-07
    • US11530858
    • 2006-09-11
    • Peter MayerWolfgang SpirklMarkus BalbChristoph BilgerMartin BroxThomas HeinMichael Richter
    • Peter MayerWolfgang SpirklMarkus BalbChristoph BilgerMartin BroxThomas HeinMichael Richter
    • G11C11/00
    • G11C7/16G11C7/1006G11C7/1051G11C7/1069G11C7/1078G11C7/1096G11C11/4085G11C11/4096
    • A memory circuit comprises a D/A converter connected with an input/output circuit and with a writing circuit, wherein the D/A converter converts a digital data with at least two digital bits received from the input/output circuit to one analog value and forwards the analog value to the writing circuit, wherein the digital data is at least a part of a floating point number, wherein the writing circuit writes the analog value in at least one selected memory cell, and an A/D converter connected with a reading circuit and with the input/output circuit, wherein the reading circuit reads an analog value from a selected memory cell and forwards the analog value to the A/D converter, wherein the A/D converter converts the analog value to digital data, and wherein the A/D converter forwards the digital data to the input/output circuit. Furthermore, a method is provided for reading data from at least one memory cell of a memory, wherein an analog value is read from the memory cell and the analog value is corrected according to a correction factor representing a storage time the analog value was stored and wherein the corrected analog value is converted to digital data.
    • 存储电路包括与输入/输出电路和写入电路连接的D / A转换器,其中D / A转换器将具有从输入/输出电路接收的至少两个数字位的数字数据转换成一个模拟值, 将模拟值转发到写入电路,其中数字数据是浮点数的至少一部分,其中写入电路将模拟值写入至少一个选择的存储单元,以及与读取器连接的A / D转换器 电路和输入/输出电路,其中读取电路从所选择的存储器单元读取模拟值并将模拟值转发到A / D转换器,其中A / D转换器将模拟值转换为数字数据,其中 A / D转换器将数字数据转发到输入/输出电路。 此外,提供一种用于从存储器的至少一个存储单元读取数据的方法,其中从存储器单元读取模拟值,并且根据表示存储模拟值的存储时间的校正因子来校正模拟值,以及 其中所述经修正的模拟值被转换为数字数据。