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公开(公告)号：US06429687B1
公开(公告)日：2002-08-06
申请号：US09489889
申请日：2000-01-24
IPC分类号： H03K1900
CPC分类号： H03K5/15026 , G06F1/10 , H03K5/088 , H03K5/13 , H03K19/00323 , H03K2005/00234
摘要： A semiconductor integrated circuit device comprises: a clock driver for outputting a clock signal; a clock wiring which is driven by the clock driver for transmitting the clock signal; a plurality of logic circuits which are connected to the clock wiring to be synchronously operated in response to the clock signal; and a plurality of delay circuits, each of which is provided between a corresponding one of the logic circuits and the clock wiring for delaying the clock signal, wherein a delay amount of each of the delay circuits is designed so that the delay amounts of the clock signal from the output of the clock driver to the inputs of the logic circuits are equal to each other. Thus, it is possible to reduce clock skew and to evade an increase in layout area.
摘要翻译： 一种半导体集成电路器件，包括：用于输出时钟信号的时钟驱动器; 由时钟驱动器驱动的用于发送时钟信号的时钟布线; 连接到所述时钟布线的多个逻辑电路，以响应于所述时钟信号同步操作; 以及多个延迟电路，每个延迟电路设置在对应的一个逻辑电路和用于延迟时钟信号的时钟布线之间，其中每个延迟电路的延迟量被设计成使得时钟的延迟量 从时钟驱动器的输出到逻辑电路的输入的信号彼此相等。 因此，可以减少时钟偏移并避免布局区域的增加。
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公开(公告)号：US4007433A
公开(公告)日：1977-02-08
申请号：US594523
申请日：1975-07-09
申请人： Kouji Houkawa , Fujio Ishihara
发明人： Kouji Houkawa , Fujio Ishihara
CPC分类号： H03H9/6489 , H03H9/14547 , H03H9/6426 , H03H9/14517
摘要： An elastic surface wave filter is disclosed which is composed of a substrate for the propagation thereon of elastic surface waves and transmitting and receiving transducers, each having at least an electrode deposited on the major surface of the substrate and in which the transmitting and receiving transducers are disposed line connectin the major surface of the substrate a predetermined distance apart from each other; the electrode of one or both of the transmitting and receiving transducers is formed with first and second comb-shaped electrodes; and the first and second electrodes are disposed with each electrode element of the latter extending between adjacent ones of the electrode elements of the former. The electrode elements of the first and/or second comb-shaped electrodes are weighted in terms of length and the extent of the region of overlapping of the first and second comb-shaped electrodes in a first direction, i.e. parallel to a line connecting the transmitting and receiving transducers, is the same at any point in a second direction perpendicular to the first direction.
摘要翻译： 公开了一种弹性表面波滤波器，其由用于在其上传播弹性表面波的基板和透射和接收换能器组成，每个转换器至少具有沉积在基板的主表面上的电极，并且其中发射和接收换能器 布置线在衬底的主表面上彼此预定距离连接; 发射和接收换能器中的一个或两个的电极形成有第一和第二梳状电极; 并且第一和第二电极被布置成其中的每个电极元件在前者的相邻电极元件之间延伸。 第一和/或第二梳状电极的电极元件根据长度和第一和第二梳状电极在第一方向上重叠的区域的范围被加权，即平行于连接发射 和接收换能器在垂直于第一方向的第二方向上的任何点处是相同的。
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公开(公告)号：US3987377A
公开(公告)日：1976-10-19
申请号：US547210
申请日：1975-02-05
申请人： Kenichi Kuroda , Fujio Ishihara
发明人： Kenichi Kuroda , Fujio Ishihara
IPC分类号： H03H9/25 , H03H3/08 , H03H9/00 , H03H9/02 , H03H9/30 , H03H9/42 , H04R17/00 , H03H9/26 , H01L41/18 , H03H9/32
CPC分类号： H03H9/02551 , H03H9/02818 , H03H9/42
摘要： An elastic surface wave propagation device is disclosed which is composed of a substrate for elastic surface wave propagation and at least one transducer disposed on the major surface of the substrate for converting an electric signal into an elastic surface wave or vice versa. The substrate is formed of quartz crystal and the major surface of the substrate is 43.degree. rotated Y cut plane of the quartz crystal. The angle between the direction of propagation of the elastic surface wave and the X-axis direction of the quartz crystal is selected to be in the range of 8.degree. to 12.degree. so that spurious components are sufficiently suppressed or negligible.
摘要翻译： 公开了一种弹性表面波传播装置，其由用于弹性表面波传播的基板和设置在基板的主表面上的至少一个换能器将电信号转换成弹性表面波，或反之亦然。 基板由石英晶体形成，基板的主表面为石英晶体的43°旋转Y切割面。 弹性表面波的传播方向与石英晶体的X轴方向之间的角度选择在8°至12°的范围内，使得杂散成分被充分抑制或可忽略。
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公开(公告)号：US07102406B2
公开(公告)日：2006-09-05
申请号：US10816808
申请日：2004-04-05
申请人： Fujio Ishihara
发明人： Fujio Ishihara
IPC分类号： H03K3/356
CPC分类号： H03D13/003 , G06F1/12
摘要： A phase detector includes a first selection circuit configured to select a first clock from a first group of clocks supplied to the first selection circuit and to transmit the first clock, and at least one phase comparator configured to detect a difference in phases between the first clock and a second clock supplied to the phase comparator and to transmit the difference as a scan signal.
摘要翻译： 相位检测器包括：第一选择电路，被配置为从提供给第一选择电路的第一组时钟中选择第一时钟并发送第一时钟;以及至少一个相位比较器，被配置为检测第一时钟之间的相位差 以及提供给相位比较器的第二时钟并将差作为扫描信号发送。
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公开(公告)号：US5880613A
公开(公告)日：1999-03-09
申请号：US925046
申请日：1997-09-08
申请人： Fujio Ishihara
发明人： Fujio Ishihara
CPC分类号： H03K3/012 , H03K3/0372
摘要： A master portion may introduce input data thereinto in a low level period of a clock and then hold and output the input data therefrom in a high level period of the clock. A slave portion may introduce input data thereinto in the high level period of the clock and then hold and output the input data therefrom in the low level period of the clock. Two exclusive NOR circuits may compare present logic values of the input data with logic values in a preceding half period of the clock to determine coincidences therebetween respectively, and then control output states of the input data held in the master portion and the slave portion based on results of their comparisons.
摘要翻译： 主机部分可以在时钟的低电平时段中将输入数据引入其中，然后在时钟的高电平时段内保持和输出其输入数据。 从机部分可以在时钟的高电平时段内引入输入数据，然后在时钟的低电平时段保持并输出其输入数据。 两个异或电路可以将输入数据的当前逻辑值与时钟的前半周期中的逻辑值进行比较，以分别确定它们之间的一致性，然后基于保持在主部分和从部分中的输入数据的输出状态 结果比较。
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6.发明授权Semiconductor integrated circuit device having clock buffers and method for arranging the clock buffers on the device 有权具有时钟缓冲器的半导体集成电路器件和用于在器件上布置时钟缓冲器的方法公开(公告)号：US07685552B2
公开(公告)日：2010-03-23
申请号：US11690985
申请日：2007-03-26
申请人： Fujio Ishihara , Ryubi Okuda , Toshihiko Himeno , Hiroshige Fujii
发明人： Fujio Ishihara , Ryubi Okuda , Toshihiko Himeno , Hiroshige Fujii
IPC分类号： G06F17/50
CPC分类号： G06F17/5045 , G06F2217/62 , G06F2217/84
摘要： This invention concerns a semiconductor integrated circuit device comprising a plurality of circuit elements arranged in a chip and operating in response to a same clock signal; clock buffers arranged at intersecting points decided based on positions of the plurality of circuit elements, the intersecting points being included in intersecting points of a pseudo mesh virtually assumed to cover up a region in the chip including the plurality of circuit elements; and a main wiring transmitting the clock signal to the clock buffers.
摘要翻译： 本发明涉及一种半导体集成电路器件，其包括布置在芯片中并响应于相同时钟信号而工作的多个电路元件; 布置在基于多个电路元件的位置确定的相交点处的时钟缓冲器，所述交点包括在虚拟网格的相交点中，虚拟地假定为覆盖包括多个电路元件的芯片中的区域; 以及将时钟信号发送到时钟缓冲器的主线。
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公开(公告)号：US20050099208A1
公开(公告)日：2005-05-12
申请号：US10816808
申请日：2004-04-05
申请人： Fujio Ishihara
发明人： Fujio Ishihara
CPC分类号： H03D13/003 , G06F1/12
摘要： A phase detector includes a first selection circuit configured to select a first clock from a first group of clocks supplied to the first selection circuit and to transmit the first clock, and at least one phase comparator configured to detect a difference in phases between the first clock and a second clock supplied to the phase comparator and to transmit the difference as a scan signal.
摘要翻译： 相位检测器包括：第一选择电路，被配置为从提供给第一选择电路的第一组时钟中选择第一时钟并发送第一时钟;以及至少一个相位比较器，被配置为检测第一时钟之间的相位差 以及提供给相位比较器的第二时钟并将差作为扫描信号发送。
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公开(公告)号：US4126837A
公开(公告)日：1978-11-21
申请号：US723502
申请日：1976-09-15
申请人： Yahei Koyamada , Fujio Ishihara
发明人： Yahei Koyamada , Fujio Ishihara
CPC分类号： H03H9/6433 , H03H9/0028 , H03H9/25 , H03H9/6409
摘要： An impedance element is disclosed which is formed with an electro-elastic surface wave transducing device composed of a substrate for the propagation of an elastic surface wave and an electro-elastic surface wave transducer disposed on the substrate for converting an electrical signal into an elastic surface wave or vice versa. The impedance element has a frequency-impedance characteristic that it exhibits a sufficiently high impedance in a predetermined frequency band but a sufficiently low impedance in the other frequency bands.Further, a band-rejection filter is disclosed which includes the abovesaid impedance element and has a band-rejection filter characteristic dependent upon the frequency-impedance characteristic of the impedance element.
摘要翻译： 公开了一种阻抗元件，其形成有由用于传播弹性表面波的基板和设置在基板上的电子弹性表面波换能器构成的电 - 弹性表面波换能装置，用于将电信号转换成弹性表面 波，反之亦然。 阻抗元件具有频率阻抗特性，其在预定频带中呈现足够高的阻抗，但在其它频带中具有足够低的阻抗。
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