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    • 4. 发明公开
    • Logic circuit and data processing system including the same
    • Logikschaltung和Datenverarbeitungssystem damit
    • EP2575257A1
    • 2013-04-03
    • EP12186396.3
    • 2012-09-27
    • Elpida Memory, Inc.
    • Nakamura, YukiDono, ChiakiSchneider, Ronny
    • H03K19/21
    • H03K19/215H03K19/21
    • Disclosed herein is a logic circuit that includes a transistor T1 coupled between VPERI and a node n1, a transistor T2 coupled between VPERI and a node n2, a transistor T3 coupled between VSS and a node n3, a transistor T4 coupled between VSS and a node n4, transistors T5 and T7 coupled in series between the nodes n1 and n3, transistors T9 and T11 coupled in series between the nodes n1 and n3, transistors T6 and T8 coupled in series between the nodes n2 and n4, and transistors T10 and T12 coupled in series between the nodes n2 and n4. An output signal Y is output from a connection point of the transistors T5 and T7 and a connection point of the transistors T6 and T8.
    • 这里公开了一种逻辑电路,其包括耦合在VPERI和节点n1之间的晶体管T1,耦合在VPERI和节点n2之间的晶体管T2,耦合在VSS和节点n3之间的晶体管T3,耦合在VSS和节点之间的晶体管T4 n4,在节点n1和n3之间串联耦合的晶体管T5和T7,串联耦合在节点n1和n3之间的晶体管T9和T11,串联耦合在节点n2和n4之间的晶体管T6和T8以及晶体管T10和T12耦合 在节点n2和n4之间串联。 输出信号Y从晶体管T5和T7的连接点和晶体管T6和T8的连接点输出。
    • 6. 发明授权
    • DISPOSITIF DE COMPARAISON DE DEUX MOTS DE N BITS CHACUN
    • 装置用于比较两个每个N位字
    • EP1642388B1
    • 2006-12-13
    • EP04767593.9
    • 2004-07-06
    • ATMEL NANTES SA
    • COLOMA, Bernard
    • H03K19/21
    • G06F7/026H03K19/215
    • The invention relates to a device for comparing two words, N and P, of n bits each. The inventive device consists of at least one comparator block comprising n basic comparator blocks which can each be used to compare bits Ni and Pi of digit place i of words N and P, whereby 0 = i = n-1. Moreover, each basic comparator block comprises: a first sub-block which can be used to generate a first signal indicating whether or not bits Ni and Pi are equal, said signal being generated at the output of the sub-block forming a first output (OUT_XORi) of the basic comparator block; a second sub-block which can be used to generate a second signal indicating which of bits Ni and Pi is greater, said signal being generated at the output of the second sub-block; and a third sub-block which enables the second signal to pass to a second output (SOUTi) of the basic comparator block if the first signal indicates that bits Ni and Pi are not equal and which, in the opposite case, enables the second signal to be blocked. The comparator block also comprises: means for generating a third signal at a first output (OUT_XOR4_b) of the comparator block, indicating that numbers N and P are equal if the n first signals indicate same; and first selective passage means which can be used selectively to connect the second output (SOUTi) of a basic comparator block to a second output (OUT_COMP4) of the comparator block, whereby said basic comparator block, from among the basic comparator blocks having a second signal at the output thereof, processes the most significant bits. According to the invention, the signal present at the second output of the comparator block indicates which of the numbers, N or P, is greater.
    • 8. 发明公开
    • Arithmetic circuit
    • Arithmetischer Schaltkreis
    • EP1475697A1
    • 2004-11-10
    • EP04017604.2
    • 1997-02-05
    • FUJITSU LIMITED
    • Goto, Gensuke
    • G06F7/50G06F7/52H03K19/21
    • G06F7/5318G06F7/509G06F7/5338H03K19/215
    • A multiplier circuit has an encoder (205; 12) and a partial product bit generating circuit (14). The encoder (205; 12) receives a multiplier bit signal (bj) and is used to output a plurality of encode signals. The partial product bit generating circuit (14) receives the encoded signals along with a multiplicand bit signal (ai, /ai) from each digit place and is used to generate a partial product bit for each digit place. The partial product bit generating circuit (14) has a first selection circuit (201, 203) which is used to select a logically true signal from among the encode signals in accordance with a value of the multiplicand bit signal. Therefore, the circuit can be reduced in size by reducing the number of necessary elements without sacrificing its high speed capability.
    • 乘法器电路具有编码器(205; 12)和部分乘积位产生电路(14)。 编码器(205; 12)接收乘法器位信号(bj)并用于输出多个编码信号。 部分积位产生电路(14)从每个数字位置接收编码信号以及被乘数位信号(ai,/ ai),并用于为每个数字位置产生部分乘积位。 部分乘积位产生电路(14)具有第一选择电路(201,203),其用于根据被乘数位信号的值从编码信号中选择逻辑真实信号。 因此,可以通过减少必要元件的数量而不牺牲其高速能力来减小电路的尺寸。