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    • 4. 发明授权
    • Logical equivalence verifying device, method, and computer-readable medium thereof
    • 逻辑等价验证装置,方法及其计算机可读介质
    • US07337414B2
    • 2008-02-26
    • US11398609
    • 2006-04-06
    • Terunobu MaruyamaHiroji TakeyamaTakeo NakamuraMitsuru SatouYuki KumonMiki Takagi
    • Terunobu MaruyamaHiroji TakeyamaTakeo NakamuraMitsuru SatouYuki KumonMiki Takagi
    • G06F17/50
    • G06F17/5022
    • The time and trouble of a mismatch cause analysis after logical equivalence verification can be reduced, and design and verification TAT can be shortened. A logical equivalence verifying device performs logical equivalence verification between two circuits, and displays the result of the logical equivalence verification. A preprocessing section 7 performs structural matching so as to determine whether there are portions corresponding in circuit structure to each other in corresponding logic cones of the two circuits. An internal DB 5 records the results of the structural matching as an identifier for each element. A subcone extracting section 8 extracts, as a subcone, a collection of elements, which are mutually to one another and have the same identifier, from each logic cone. A verifying section 9 performs logical equivalence verification between the two circuits for each of the extracted subcones. A display control section 10 displays only those subcones for which the logical equivalence verification has resulted in mismatch.
    • 可以减少逻辑等价验证后不匹配原因分析的时间和麻烦,可以缩短设计和验证TAT。 逻辑等价验证装置在两个电路之间执行逻辑等价验证,并显示逻辑等效验证的结果。 预处理部7执行结构匹配,以便确定在两个电路的相应逻辑锥中是否存在与电路结构相对应的部分。 内部DB 5将结构匹配的结果记录为每个元素的标识符。 子提取部分8从每个逻辑锥体中提取彼此相互并且具有相同标识符的元素集合作为子单元。 验证部分9对于每个提取的子晶体执行两个电路之间的逻辑等价性验证。 显示控制部10仅显示逻辑等同性验证导致不匹配的那些子会话。
    • 5. 发明授权
    • Logical equivalence verifying device, method and computer readable medium thereof
    • 逻辑等效验证装置,方法和计算机可读介质
    • US07143375B2
    • 2006-11-28
    • US10705787
    • 2003-11-12
    • Terunobu MaruyamaHiroji TakeyamaTakeo NakamuraMitsuru SatouYuki KumonMiki Takagi
    • Terunobu MaruyamaHiroji TakeyamaTakeo NakamuraMitsuru SatouYuki KumonMiki Takagi
    • G06F17/50
    • G06F17/5022
    • The time and trouble of a mismatch cause analysis after logical equivalence verification can be reduced, and design and verification TAT can be shortened. A logical equivalence verifying device performs logical equivalence verification between two circuits, and displays the result of the logical equivalence verification. A preprocessing section 7 performs structural matching so as to determine whether there are portions corresponding in circuit structure to each other in corresponding logic cones of the two circuits. An internal DB 5 records the results of the structural matching as an identifier for each element. A subcone extracting section 8 extracts, as a subcone, a collection of elements, which are mutually to one another and have the same identifier, from each logic cone. A verifying section 9 performs logical equivalence verification between the two circuits for each of the extracted subcones. A display control section 10 displays only those subcones for which the logical equivalence verification has resulted in mismatch.
    • 可以减少逻辑等价验证后不匹配原因分析的时间和麻烦,可以缩短设计和验证TAT。 逻辑等价验证装置在两个电路之间执行逻辑等价验证,并显示逻辑等效验证的结果。 预处理部7执行结构匹配,以便确定在两个电路的相应逻辑锥中是否存在与电路结构相对应的部分。 内部DB 5将结构匹配的结果记录为每个元素的标识符。 子提取部分8从每个逻辑锥体中提取彼此相互并且具有相同标识符的元素集合作为子单元。 验证部分9对于每个提取的子晶体执行两个电路之间的逻辑等价性验证。 显示控制部10仅显示逻辑等同性验证导致不匹配的那些子会话。
    • 6. 发明申请
    • Logical equivalence verifying device, logical equivalence verifying method, and logical equivalence verifying program
    • 逻辑等价验证装置,逻辑等效验证方法和逻辑等价验证程序
    • US20060184903A1
    • 2006-08-17
    • US11398609
    • 2006-04-06
    • Terunobu MaruyamaHiroji TakeyamaTakeo NakamuraMitsuru SatouYuki KumonMiki Takagi
    • Terunobu MaruyamaHiroji TakeyamaTakeo NakamuraMitsuru SatouYuki KumonMiki Takagi
    • G06F17/50
    • G06F17/5022
    • The time and trouble of a mismatch cause analysis after logical equivalence verification can be reduced, and design and verification TAT can be shortened. A logical equivalence verifying device performs logical equivalence verification between two circuits, and displays the result of the logical equivalence verification. A preprocessing section 7 performs structural matching so as to determine whether there are portions corresponding in circuit structure to each other in corresponding logic cones of the two circuits. An internal DB 5 records the results of the structural matching as an identifier for each element. A subcone extracting section 8 extracts, as a subcone, a collection of elements, which are mutually to one another and have the same identifier, from each logic cone. A verifying section 9 performs logical equivalence verification between the two circuits for each of the extracted subcones. A display control section 10 displays only those subcones for which the logical equivalence verification has resulted in mismatch.
    • 可以减少逻辑等价验证后不匹配原因分析的时间和麻烦,可以缩短设计和验证TAT。 逻辑等价验证装置在两个电路之间执行逻辑等价验证,并显示逻辑等效验证的结果。 预处理部7执行结构匹配,以便确定在两个电路的相应逻辑锥中是否存在与电路结构相对应的部分。 内部DB 5将结构匹配的结果记录为每个元素的标识符。 子提取部分8从每个逻辑锥体中提取彼此相互并且具有相同标识符的元素集合作为子单元。 验证部分9对于每个提取的子晶体执行两个电路之间的逻辑等价性验证。 显示控制部10仅显示逻辑等同性验证导致不匹配的那些子会话。