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    • 14. 发明授权
    • Signal transmission circuit and semiconductor memory using the same
    • 信号传输电路和半导体存储器使用相同
    • US06337581B1
    • 2002-01-08
    • US09599738
    • 2000-06-23
    • Kazuo KanetaniHiroaki NambuKaname YamasakiTakeshi KusunokiFumihiko Arakawa
    • Kazuo KanetaniHiroaki NambuKaname YamasakiTakeshi KusunokiFumihiko Arakawa
    • H03K190185
    • H03K3/356139
    • Disclosed herein is a transmission circuit for transmitting a data signal between circuit units on a semiconductor integrated circuit through a signal wire. The data signal is transmitted by a driver circuit for precharging the signal wire to a high potential during a precharge period and discharging the signal wire to a low potential according to data to be transmitted during an evaluation period or keeping the signal wire at a high potential as floating as it is. Latch type Source-Coupled-Logic configured so that a first node and a second node used as an output terminal to the next stage are respectively charged together to a high potential during the precharge period, the second node is discharged according to a potential at the first node during the evaluation period, and the first node is discharged according to a potential on the signal wire, is used as a receiving circuit, whereby a distinction as to a high or low level of the potential on the signal wire is made with early timing provided to perform the operation of discharging the signal wire by the driver circuit.
    • 这里公开了一种用于通过信号线在半导体集成电路上的电路单元之间传输数据信号的发送电路。 数据信号由驱动电路传输,用于在预充电期间将信号线预充电到高电位,并根据在评估期间要发送的数据将信号线放电到低电位,或者将信号线保持在高电位 像浮动一样。 锁存型源耦合逻辑被配置为使得用作到下一级的输出端的第一节点和第二节点在预充电周期期间分别充电到高电位,第二节点根据在 在评估期间的第一节点和第一节点根据信号线上的电位放电,被用作接收电路,从而对信号线上的电位的高电平或低电平进行区分以提前 提供用于执行由驱动器电路放电信号线的操作的定时。
    • 15. 发明授权
    • Signal transmission circuit and semiconductor memory using the same
    • 信号传输电路和半导体存储器使用相同
    • US06438050B1
    • 2002-08-20
    • US10038914
    • 2002-01-08
    • Kazuo KanetaniHiroaki NambuKaname YamasakiTakeshi KusunokiFumihiko Arakawa
    • Kazuo KanetaniHiroaki NambuKaname YamasakiTakeshi KusunokiFumihiko Arakawa
    • G11C700
    • H03K3/356139
    • A transmission circuit for transmitting a data signal between circuit units through a signal wire. The data signal is transmitted for precharging the signal wire to high potential during a precharge period and discharging it to low potential according to data transmitted during an evaluation period or keeping the signal wire as it is. Latch type Source-Coupled-Logic is configured so that a first node and a second node used as an output terminal to the next stage are respectively charged together to high potential during the precharge period. The second node is discharged according to a potential at the first node during the evaluation period, and the first node is discharged according to a potential on the signal wire. Thus, the operation of discharging the signal wire by the driver circuit can be sped up.
    • 一种用于通过信号线在电路单元之间传输数据信号的传输电路。 发送数据信号,用于在预充电期间将信号线预充电到高电位,并根据在评估期间传输的数据将其放电到低电位,或保持信号线原样。 锁存型源耦合逻辑被配置为使得用作下一级的输出端的第一节点和第二节点在预充电周期期间分别充电到高电位。 第二节点在评估期间根据第一节点的电位放电,第一节点根据信号线上的电位放电。 因此,可以加快由驱动电路对信号线进行放电的动作。
    • 19. 发明授权
    • Signal transmission circuit and semiconductor memory using the same
    • 信号传输电路和半导体存储器使用相同
    • US06356493B1
    • 2002-03-12
    • US09636737
    • 2000-08-11
    • Kazuo KanetaniHiroaki NambuKaname YamasakiTakeshi KusunokiFumihiko Arakawa
    • Kazuo KanetaniHiroaki NambuKaname YamasakiTakeshi KusunokiFumihiko Arakawa
    • G11C700
    • H03K3/356139
    • A transmission circuit for transmitting a data signal between circuit units through a signal wire. The data signal is transmitted for precharging the signal wire to high potential during a precharge period and discharging it to low potential according to data transmitted during an evaluation period or keeping the signal wire as it is. Latch type Source-Coupled-Logic as configured so that a first node and a second node used as an output terminal to the next stage are respectively charged together to high potential during the precharge period. The second node is discharged according to potential at the first node during the evaluation period, and the first node is discharged according to a potential on the signal wire. Thus, the operation of discharging the signal wire by the driver circuit can be sped up.
    • 一种用于通过信号线在电路单元之间传输数据信号的传输电路。 发送数据信号,用于在预充电期间将信号线预充电到高电位,并根据在评估期间传输的数据将其放电到低电位,或保持信号线原样。 锁存型源耦合逻辑被配置为使得用作下一级的输出端的第一节点和第二节点在预充电周期期间分别充电到高电位。 第二节点在评估期间根据第一节点的电位放电,第一节点根据信号线上的电位放电。 因此,可以加快由驱动电路对信号线进行放电的动作。
    • 20. 发明授权
    • Semiconductor memory
    • 半导体存储器
    • US06333881B1
    • 2001-12-25
    • US09604735
    • 2000-06-28
    • Takeshi KusunokiFumihiko ArakawaHiroaki NambuKazuo KanetaniKaname Yamasaki
    • Takeshi KusunokiFumihiko ArakawaHiroaki NambuKazuo KanetaniKaname Yamasaki
    • G11C700
    • G11C11/419G11C7/12
    • One of the factors determining cycle time of an SRAM is recovery time of a bit line after writing. When the size of a precharge PMOS transistor is increased to shorten the recovery time, delay time which is caused by making the precharge PMOS transistors non-conductive at the time of read operation, that is, access time increases. To avoid this, a semiconductor memory is provided with a second precharge circuit in addition to the conventional bit line precharge circuit. The second precharge circuit operates upon detection of completion of writing and stops operation when it detects that the bit line is precharged to a high potential. Consequently, the recovery time after write operation is shortened and the cycle time is reduced without increasing the access time.
    • 确定SRAM周期时间的因素之一是写入后的位线的恢复时间。 当增加预充电PMOS晶体管的尺寸以缩短恢复时间时,由于在读取操作时使预充电PMOS晶体管不导通而导致的延迟时间,即访问时间增加。 为了避免这种情况,除了常规位线预充电电路之外,半导体存储器还设置有第二预充电电路。 第二预充电电路在检测到写入完成时工作,并且当其检测到位线被预充电到高电位时停止操作。 因此,在不增加访问时间的情况下,缩短写入操作之后的恢复时间并缩短周期时间。