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    • 55. 发明授权
    • Cordless telephone
    • 无绳电话
    • US5915227A
    • 1999-06-22
    • US119648
    • 1998-07-21
    • Hideo HikumaKunihiro TakahashiKatsuhiko OtsujiHiroyuki IshidaMasayasu FujinoYuzo Ishida
    • Hideo HikumaKunihiro TakahashiKatsuhiko OtsujiHiroyuki IshidaMasayasu FujinoYuzo Ishida
    • H04M1/00H04B7/26H04M1/725H04Q7/38H04Q7/26
    • H04M1/72508H04M1/72505
    • A cordless telephone consisting of base and handset units is disclosed wherein a control circuit incorporated in the base unit comprises first and second D/A converters, first and second A/D converters, and first and second sync. signal generation circuits. The first and second D/A converters respectively convert digital signals from the handset unit and a PBX. The first and second A/D converters convert the analog signals provided from the first and second D/A converters to transmit them to the PBX and handset unit, respectively. The first sync. signal generation circuit regenerates a first clock signal synchronously with a sync. signal provided from the PBX to render the first A/D and second D/A converters to operate in synchronism with the sync. signal from the PBX. The second sync. signal generation circuit generates a second clock signal which is independent of the sync. signal from the PBX to render the first D/A and second A/D converters to operate in synchronism with the second clock signal. Accordingly, the synchronization between the base and handset units is effected independently of the synchronization signal from the PBX.
    • 公开了一种由基座和手机单元组成的无绳电话,其中并入基地单元中的控制电路包括第一和第二D / A转换器,第一和第二A / D转换器以及第一和第二同步。 信号发生电路。 第一和第二D / A转换器分别转换来自手机单元和集团电话的数字信号。 第一和第二A / D转换器将从第一和第二D / A转换器提供的模拟信号转换成分别将它们发送到PBX和手机单元。 第一次同步 信号发生电路与同步同步地再生第一时钟信号。 信号从PBX提供,以使第一A / D和第二D / A转换器与同步同步操作。 来自集团电话的信号。 第二次同步 信号发生电路产生独立于同步的第二时钟信号。 来自PBX的信号,以使第一D / A和第二A / D转换器与第二时钟信号同步地工作。 因此,基站和手持机单元之间的同步独立于来自PBX的同步信号来实现。
    • 57. 发明授权
    • Tuning fork
    • 音叉
    • US4498025A
    • 1985-02-05
    • US323488
    • 1981-11-20
    • Kunihiro Takahashi
    • Kunihiro Takahashi
    • H03H3/04H03H9/215H01L41/08
    • H03H9/215H03H3/04H03H2003/0492
    • A tuning fork utilizing elastic coupling between the flexural mode and the torsional mode in which the frequency of the flexural mode is adjusted by adding or reducing masses deposited near the center of the arms in the lengthwise direction and the frequency of the torsional mode is adjusted by adding or reducing masses deposited on the other portions such as the tops of the arms. The positions near the center of the arms in the lengthwise direction are suitably selected so that adding or reducing the masses thereto or therefrom changes only the frequency of the flexural mode changes only and the frequency of the torsional mode is scarcely changed.
    • 在弯曲模式和扭转模式之间使用弹性耦合的音叉,其中弯曲模式的频率通过在纵向方向和扭转模式的频率附近放置或缩小沉积在臂的中心附近的质量来调整, 添加或减少沉积在诸如臂的顶部的其它部分上的质量。 适当地选择沿长度方向的臂的中心附近的位置,使得添加或减少其上的质量或仅改变弯曲模式的频率,并且扭转模式的频率几乎不变化。
    • 58. 发明授权
    • Numerical structural analysis system based on the load-transfer-path method
    • 基于负载传递路径法的数值结构分析系统
    • US08239180B2
    • 2012-08-07
    • US12092571
    • 2006-11-06
    • Kunihiro TakahashiToshiaki Sakurai
    • Kunihiro TakahashiToshiaki Sakurai
    • G06G7/48
    • G06F17/5018G06F17/5095Y02T10/82
    • The purpose of this invention is to reduce the calculation time in the numerical structure analysis system based on load-transfer-path method.The parameters are set in the condition that the supporting point B in the objective structure is fixed and the load is applied to the specific loading point A. The FEM calculation means 2 calculates the deformation of the objective structure according to the structural stiffness matrix in the stiffness matrix holding means 1 to find the basic data such as the displacement of each point and so on. The FEM calculation means calculates each deformation to find the displacement under the condition that the specific loading point A and the supporting point B are fixed and three inspection loadings are applied to the variable loading point C. The partial stiffness matrix calculation means 3 solves the multidimensional simultaneous linear equation based upon the internal stiffness matrix of the objective structure, the load value and the displacement to find the partial stiffness matrix KAC. The stiffness parameter calculation means 8 calculates the value of the stiffness parameter U* according to the partial stiffness matrix KAC and the displacement in the basic data and so on. The value of U* of each point is calculated with changing the variable loading point C as to follow sequentially all the necessary points in the objective structure.
    • 本发明的目的是减少基于负荷传递路径法的数值结构分析系统的计算时间。 在目标结构中的支撑点B固定并且将负载施加到特定装载点A的条件下设定参数。FEM计算装置2根据结构刚度矩阵计算目标结构的变形 刚度矩阵保持装置1,以查找诸如每个点的位移等基本数据。 有限元计算装置计算每个变形以在特定装载点A和支撑点B固定的条件下找到位移,并且将三个检查载荷施加到可变载荷点C.部分刚度矩阵计算装置3解决多维 基于目标结构的内部刚度矩阵,负载值和位移以找到部分刚度矩阵KAC的同时线性方程。 刚度参数计算装置8根据部分刚度矩阵KAC和基本数据中的位移等来计算刚度参数U *的值。 通过改变可变加载点C来计算每个点的U *的值,以便顺序地跟随目标结构中的所有必要点。