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    • 71. 发明授权
    • Semiconductor integrated circuit device and method of testing it
    • 半导体集成电路器件及其测试方法
    • US06779144B2
    • 2004-08-17
    • US09996722
    • 2001-11-30
    • Hideki HayashiKeiichi HigetaShigeru Nakahara
    • Hideki HayashiKeiichi HigetaShigeru Nakahara
    • G01R3128
    • G11C29/36G01R31/319G11C29/14
    • A semiconductor integrated circuit device includes a test circuit including a first latch circuit for holding a test pattern input to an electronic circuit operating in accordance with a clock signal and a second latch circuit for holding the output signal of the electronic circuit corresponding to the test pattern. In the test circuit, the clock signal having a frequency higher than the noise frequency generated in the power line at the time of starting to supply the clock signal to the electronic circuit is continuously supplied to the electronic circuit and the test circuit, while at the same time performing, in accordance with the clock signal in a period longer than the period of the clock signal, the operation of inputting the test pattern to the first latch circuit and the operation of outputting the output signal held in the second latch circuit.
    • 半导体集成电路装置包括测试电路,该测试电路包括用于保持测试图形输入到根据时钟信号工作的电子电路的第一锁存电路和用于保持对应于测试图案的电子电路的输出信号的第二锁存电路 。 在测试电路中,具有高于在开始向电子电路提供时钟信号时在电力线中产生的噪声频率的时钟信号被连续地提供给电子电路和测试电路,而在 同时根据时钟信号在比时钟信号的周期长的时间内执行向第一锁存电路输入测试图案的操作和输出保持在第二锁存电路中的输出信号的操作。
    • 75. 发明授权
    • Optical head device
    • 光头设备
    • US06400671B2
    • 2002-06-04
    • US09897811
    • 2001-07-02
    • Hideki HayashiTatsuo ItoYoshiaki KommaHiroaki YamamotoSeiji Nishino
    • Hideki HayashiTatsuo ItoYoshiaki KommaHiroaki YamamotoSeiji Nishino
    • G11B700
    • G11B7/131G11B7/0912G11B7/0943G11B7/133G11B7/1353G11B2007/0006
    • In a photodetector, the minimum size of the photodetection area for detecting a focus error signal from a light beam on the inner radius side of a hologram is made smaller than the minimum diameter of diffracted light beam spots (30, 31) for recording and reproduction, and when a CD is reproduced, a light beam close to the optical axis is made to significantly contribute to the focus error signal and the minimum size of the photodetection area for detecting the focus error signal from a light beam from the peripheral side of the hologram is made larger than the minimum diameter of diffracted light beam spots (130, 131) for recording and reproduction, whereby the focus error signal is made equal to the normal focus error signal when a DVD is reproduced, so that the focus offset variation caused when the base material thickness varies can be reduced.
    • 在光电检测器中,将用于检测来自全息图的内半径侧上的光束的聚焦误差信号的光检测区域的最小尺寸设定为小于用于记录和再现的衍射光束点(30,31)的最小直径 ,并且当再现CD时,使靠近光轴的光束显着有助于聚焦误差信号和用于从来自所述光轴的外围侧的光束检测聚焦误差信号的光检测区域的最小尺寸 使全息图大于用于记录和再现的衍射光束点(130,131)的最小直径,由此当再现DVD时使聚焦误差信号等于正常聚焦误差信号,使得聚焦偏移变化引起 当基材厚度变化时可以减少。
    • 76. 发明授权
    • Disk playback apparatus disk changer device and disk magazine device
    • 磁盘播放装置磁盘更换装置和磁盘盒装置
    • US06333911B1
    • 2001-12-25
    • US09015714
    • 1998-01-29
    • Nobuhiro SatoHideki Hayashi
    • Nobuhiro SatoHideki Hayashi
    • G11B1708
    • G11B23/0323G11B17/30
    • A disk playback apparatus such as a CD player comprises a case and a lift unit which is supported to be movable in the vertical direction to the case. The lift unit comprises a playback unit, a turntable, a holder drawing member, and the like. A magazine which is adapted to be loaded in the case accommodates therein disk holders, each of which hold one of different-sized disks. A control link having a holder butting pin and a disk control pin is movably mounted on the playback unit which is urged in the direction of departing from the disk by means of a release spring. When the disk holder reaches its accommodation position, the disk holder butts against the holder butting pin and rotates the control link slightly, thereby the disk control pin compulsively corrects the position of the disk. Thus the disk is certainly transported to the normal chucking position on the playback unit irrespective of the disk accommodated state in the disk holder.
    • 诸如CD播放机的盘播放装置包括壳体和提升单元,其被支撑为可在垂直方向上移动到壳体。 提升单元包括播放单元,转盘,保持器绘图构件等。 适于装载在壳体中的盒子容纳有盘保持器,每个盘保持不同大小的盘中的一个。 具有保持器对接销和盘控制销的控制链路可移动地安装在通过释放弹簧沿离开盘的方向被推动的回放单元上。 当盘保持器到达其收容位置时,盘保持器抵靠保持器对接销并稍微旋转控制链,从而盘控制销强制地校正盘的位置。 因此,无论盘保持器中的盘容纳状态如何,盘肯定地被传送到回放单元上的正常夹持位置。
    • 79. 发明授权
    • Ferroelectric memory
    • 铁电存储器
    • US6078516A
    • 2000-06-20
    • US48999
    • 1998-03-27
    • Hideki Hayashi
    • Hideki Hayashi
    • G11C14/00G11C11/22
    • G11C11/22
    • A memory device has a ferroelectric memory cell block, which is connected via an input/output latch buffer to a data input terminal. The memory device also has a writing period forming circuit that forms a predetermined number of writing periods when writing of data is requested. During the thus formed plurality of writing periods, a control circuit controls the input/output latch buffer to write data to the memory cell block. Thus, a single request for writing of data causes writing of data to be repeated a plurality of times automatically.
    • 存储器件具有铁电存储器单元块,其经由输入/输出锁存器缓冲器连接到数据输入端子。 存储装置还具有写入周期形成电路,当写入数据时,形成预定数量的写入周期。 在这样形成的多个写入周期期间,控制电路控制输入/输出锁存缓冲器将数据写入存储单元块。 因此,写入数据的单个请求导致自动重写数据重复多次。