Data output circuit with reduced output noise
    42.
    发明申请
    Data output circuit with reduced output noise 审中-公开
    数据输出电路具有降低的输出噪声

    公开(公告)号:US20070132488A1

    公开(公告)日:2007-06-14

    申请号:US11704916

    申请日:2007-02-12

    IPC分类号: H03B1/00

    CPC分类号: H03K19/00361

    摘要: A data output drive transistor is rendered conductive when the potential of an internal node attains an H level, whereby an output node is discharged to the level of ground potential. When the drive transistor is turned on, the output node is discharged to the level of ground potential at high speed. This drive transistor is turned on for a predetermined time period when output of a high level data is completed, whereby the output node is discharged to the level of the ground potential for a predetermined time period. As a result, the potential of the output node is lowered from a high level to an intermediate level, so that the amplitude of a subsequent output signal is reduced. An output circuit that can effectively prevent generation of ringing with no increase in the access time is provided. A countermeasure is provided to suppress a ringing at output node which drives the output node at high speed when the output node potential attains a potential at which no ringing is caused. A stable output signal is provided at high speed.

    摘要翻译: 当内部节点的电位达到H电平时,数据输出驱动晶体管导通,从而将输出节点放电到地电位。 当驱动晶体管导通时,输出节点以高速放电到地电位。 当高电平数据的输出完成时,该驱动晶体管导通预定时间段,由此输出节点在预定时间段内被放电到地电位的电平。 结果,输出节点的电位从高电平降低到中间电平,使得后续输出信号的幅度减小。 提供了可以有效地防止产生振铃而不增加访问时间的输出电路。 提供了一种对策,用于当输出节点电位达到不产生振铃的电位时,抑制在输出节点处高速驱动输出节点的振铃。 高速提供稳定的输出信号。

    Data output circuit with reduced output noise
    43.
    发明授权
    Data output circuit with reduced output noise 失效
    数据输出电路具有降低的输出噪声

    公开(公告)号:US06777986B2

    公开(公告)日:2004-08-17

    申请号:US10217391

    申请日:2002-08-14

    IPC分类号: H03K300

    CPC分类号: H03K19/00361

    摘要: A data output drive transistor is rendered conductive when the potential of an internal node attains an H level, whereby an output node is discharged to the level of ground potential. When the drive transistor is turned on, the output node is discharged to the level of ground potential at high speed. This drive transistor is turned on for a predetermined time period when output of a high level data is completed, whereby the output node is discharged to the level of the ground potential for a predetermined time period. As a result, the potential of the output node is lowered from a high level to an intermediate level, so that the amplitude of a subsequent output signal is reduced. An output circuit that can effectively prevent generation of ringing with no increase in the access time is provided. A countermeasure is provided to suppress a ringing at output node which drives the output node at high speed when the output node potential attains a potential at which no ringing is caused. A stable output signal is provided at high speed.

    摘要翻译: 当内部节点的电位达到H电平时,数据输出驱动晶体管导通,从而将输出节点放电到地电位。 当驱动晶体管导通时,输出节点以高速放电到地电位。 当高电平数据的输出完成时,该驱动晶体管导通预定时间段,由此输出节点在预定时间段内被放电到地电位的电平。 结果,输出节点的电位从高电平降低到中间电平,使得后续输出信号的幅度减小。 提供了可以有效地防止产生振铃而不增加访问时间的输出电路。 提供了一种对策,用于当输出节点电位达到不产生振铃的电位时,抑制在输出节点处高速驱动输出节点的振铃。 高速提供稳定的输出信号。

    Piezoelectric ceramic material
    44.
    发明授权
    Piezoelectric ceramic material 有权
    压电陶瓷材料

    公开(公告)号:US06685850B2

    公开(公告)日:2004-02-03

    申请号:US09915347

    申请日:2001-07-27

    IPC分类号: C04B3501

    CPC分类号: H01L41/187 C04B35/475

    摘要: The invention provides a piezoelectric ceramic material comprising a Bi3TiNbO9 crystal and/or an MBi2Nb2O9 crystal which are each a bismuth layer compound, where M represents at least one element selected from Sr, Ba and Ca. The ceramic material contains Bi, Ti, M and Nb as main component elements. The molar ratio as oxides of the main component elements is given by (Bi3−xMx)z (Nb1+yTi1−y)O9 provided that 0

    摘要翻译: 本发明提供一种包含Bi3TiNbO9晶体和/或MBi2Nb2O9晶体的压电陶瓷材料,它们各自是铋层化合物,其中M表示选自Sr,Ba和Ca中的至少一种元素。 陶瓷材料含有Bi,Ti,M和Nb作为主要成分。 如果0

    Data output circuit with reduced output noise

    公开(公告)号:US5933048A

    公开(公告)日:1999-08-03

    申请号:US891212

    申请日:1997-07-10

    IPC分类号: H03K19/003 H03K17/16

    CPC分类号: H03K19/00361

    摘要: A data output drive transistor is rendered conductive when the potential of an internal node attains an H level, whereby an output node is discharged to the level of ground potential. When the drive transistor is turned on, the output node is discharged to the level of ground potential at high speed. This drive transistor is turned on for a predetermined time period when output of a high level data is completed, whereby the output node is discharged to the level of the ground potential for a predetermined time period. As a result, the potential of the output node is lowered from a high level to an intermediate level, so that the amplitude of a subsequent output signal is reduced. An output circuit that can effectively prevent generation of ringing with no increase in the access time is provided. A countermeasure is provided to suppress a ringing at output node which drives the output node at high speed when the output node potential attains a potential at which no ringing is caused. A stable output signal is provided at high speed.

    Simple transmittance-measuring instrument
    48.
    发明授权
    Simple transmittance-measuring instrument 失效
    简单的透光率测量仪器

    公开(公告)号:US5568267A

    公开(公告)日:1996-10-22

    申请号:US455914

    申请日:1995-05-31

    CPC分类号: G01N21/8483 G01N21/255

    摘要: A simple instrument for measuring the transmittance of a film impregnated with a pyridylazo-2-naphthol or dimethylphenylazo-2-naphthol dye having a continuous absorption spectrum having a plurality of absorption peaks in the wavelength range of from 350 to 800 nm, which comprises a light-emitting diode having a peak of relative emission intensity in the vicinity of a wavelength of 450 nm; a means for allowing the diode to emit a light and adjusting the quantity of the light; a band-pass filter which consists essentially of a resin film or glass plate coated with a coating composition composed essentially of at least one pigment selected from the group consisting of a Phthalocyanine Blue pigment and an organic violet pigment finely dispersed in a binder resin, and which has a peak of transmittance in the range of from 330 to 480 nm, the transmittance at the peak being 40% or more the transmittances at 260 nm or less and 520 nm or more being 1% or less, said band-pass filter being placed in such a position that the light emitted by the above light-emitting diode passes directly through the band-pass filter; a photodiode sensitive to the wavelength of the light which has passed through the band-pass filter which photodiode is placed so as to face the band-pass filter at such a space that a test sample can be inserted into between the band-pass filter and the photodiode.

    摘要翻译: 用于测量浸渍有吡啶偶氮-2-萘酚或二甲基苯偶氮-2-萘酚染料的膜的透射率的简单仪器,其具有在350至800nm的波长范围内具有多个吸收峰的连续吸收光谱,其包含 在波长450nm附近具有相对发光强度峰值的发光二极管; 用于允许二极管发光并调节光量的装置; 带通滤光器,其基本上由涂覆有基本上由至少一种选自由酞菁蓝颜料和分散在粘合剂树脂中的有机紫色颜料组成的组中的颜料组成的涂料组合物的树脂膜或玻璃板组成,以及 其透射率峰值在330〜480nm的范围内,峰值的透射率在260nm以下且520nm以上的透射率为40%以上为1%以下,所述带通滤光器为 放置在由上述发光二极管发出的光直接通过带通滤光器的位置; 对通过带通滤波器的光的波长敏感的光电二极管被放置成面对带通滤波器的空间,使得测试样本能够被插入到带通滤波器和 光电二极管。