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    • 28. 发明授权
    • Semiconductor device output buffer circuit for LSI
    • LSI半导体器件输出缓冲电路
    • US6072354A
    • 2000-06-06
    • US939334
    • 1997-09-29
    • Toshikazu TachibanaTakeshi SakaiYoshinobu Nakagome
    • Toshikazu TachibanaTakeshi SakaiYoshinobu Nakagome
    • H03K19/017H03K17/16
    • H03K19/01714Y10T307/438
    • In a semiconductor device having a plurality of output circuits such as a semiconductor memory device, a drive signal having a boosted voltage level which is produced from a boosting circuit is applied to a gate of a low-level outputting MOS transistor in the output circuit. As a result, even when a potential at the ground wiring line is floated, a substantial decrease of a potential difference between the ground wiring line and the gate of the low-level outputting MOS transistor can be prevented. Also, a signal having a sufficiently high level can be supplied to a gate of a low-level outputting output MOS transistor. As a consequence, delays in the switching operation of the output MOS transistor can be suppressed, and the output circuit can be operated at high speed.
    • 在具有诸如半导体存储器件的多个输出电路的半导体器件中,将由升压电路产生的升压电压电平的驱动信号施加到输出电路中的低电平输出MOS晶体管的栅极。 结果,即使在接地布线的电位浮起时,也可以防止接地布线和低电平输出MOS晶体管的栅极之间的电位差的显着降低。 此外,具有足够高电平的信号可以被提供给低电平输出输出MOS晶体管的栅极。 结果,可以抑制输出MOS晶体管的开关操作的延迟,并且输出电路可以高速运行。
    • 29. 发明授权
    • Information processing apparatus
    • 信息处理装置
    • US5973675A
    • 1999-10-26
    • US858760
    • 1997-05-19
    • Takuma JotoTakeshi Sakai
    • Takuma JotoTakeshi Sakai
    • G06F3/02G06F3/023H03M11/20G09G5/00
    • G06F3/023
    • An information processing apparatus is capable of using more than one type of keyboard with a single keyboard controller without increasing the production cost. In a keyboard matrix, a key scanning line C0 is arranged so that the key scanning line C0 is only connected to any one of key return lines R0 to R7 through a key switch having a key switch number G01. The key switch number G01 is assigned for the key [F1] which is common to keyboards having different key arrangements. When the information processing apparatus is activated, a keyboard initializing program is activated by depressing the [F1] key. As a result, the information processing apparatus identifies the type of the keyboard by detecting a key return line R from which a signal is returned when scanning is made upon the depression of the [F1] key.
    • 一种信息处理设备能够在不增加生产成本的情况下使用具有单个键盘控制器的多于一种类型的键盘。 在键盘矩阵中,键扫描线C0被布置成使得键扫描线C0仅通过具有键开关号G01的键开关连接到键返回线R0至R7中的任一个。 按键开关编号G01分配给具有不同键配置的键盘常用的键[F1]。 当信息处理装置被激活时,通过按下[F1]键来激活键盘初始化程序。 结果,信息处理装置通过检测在按下[F1]键时进行扫描时返回信号的键返回线R来识别键盘的类型。
    • 30. 发明授权
    • Matched delay word line strap
    • 匹配延迟字线条
    • US5841688A
    • 1998-11-24
    • US883738
    • 1997-06-27
    • Shunichi SukegawaHugh P. McAdamsTadashi TachibanaKatsuo KomatsuzakiTakeshi Sakai
    • Shunichi SukegawaHugh P. McAdamsTadashi TachibanaKatsuo KomatsuzakiTakeshi Sakai
    • G11C5/06G11C8/14G11C11/408H01L21/8242H01L27/108G11C5/00
    • H01L27/10891G11C11/408G11C5/063G11C8/14H01L27/10897
    • A circuit is designed with a first lower conductor (500) having two ends. One end of the first lower conductor is coupled to a first signal source (386). A first upper conductor (544) has two ends and is spaced apart from the first lower conductor by a distance less than an allowable spacing between adjacent lower conductors. One end of the first upper conductor is coupled to a second signal source (384). A second upper conductor (508) has two ends. One end of the second upper conductor is coupled to another end of the first lower conductor for receiving a signal from the first signal source. A second lower conductor (552) has two ends and is spaced apart from the second upper conductor by a distance less than the allowable spacing between adjacent lower conductors. One end of the second lower conductor is coupled to another end of the first upper conductor for receiving a signal from the second signal source. Since the upper and lower conductors are spaced apart by a distance less than an allowable spacing between adjacent lower conductors, layout area is conserved. Total resistance of conductors connected to each signal source is the same, so signal delay is the same.
    • 电路设计有具有两端的第一下导体(500)。 第一下导体的一端耦合到第一信号源(386)。 第一上导体(544)具有两个端部,并且与第一下导体间隔一个小于相邻下导体之间允许间隔的距离。 第一上导体的一端耦合到第二信号源(384)。 第二上导体(508)具有两端。 第二上导体的一端耦合到第一下导体的另一端,用于接收来自第一信号源的信号。 第二下导体(552)具有两个端部,并且与第二上导体间隔一个小于相邻下导体之间允许间隔的距离。 第二下导体的一端耦合到第一上导体的另一端,用于从第二信号源接收信号。 由于上导体和下导体间隔距离小于相邻下导体之间的允许间距,所以布局面积是保守的。 连接到每个信号源的导体的总电阻是相同的,因此信号延迟是相同的。