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    • 3. 发明申请
    • Sampling frequency conversion apparatus
    • 采样变频装置
    • US20050195929A1
    • 2005-09-08
    • US11100128
    • 2005-04-06
    • Nobuyuki YasudaKazunobu Ohkuri
    • Nobuyuki YasudaKazunobu Ohkuri
    • G10L19/00H03H17/00H03H17/06H04B14/02H04B14/04H04H5/00H04H20/89H04L7/02H04L25/05H04B1/38
    • H03H17/0628H03H17/0621H04B14/026H04H20/89H04L25/05
    • A sampling frequency conversion apparatus which easily controls the phase difference (time difference) between the input data and the output data in converting the sampling frequency, and comprises storage means 13 for continuously writing the input data or the data obtained by over-sampling the input data and for continuously reading out the data written maintaining a predetermined address difference relative to the write address, and interpolation processing means 14 for interpolating the data read out from the storage means 13 to obtain data of which the sampling frequency is converted. In converting the sampling frequency, an address difference between a write address and a read address in the storage means 13 is optimized, the address difference being optimized without limitation for a predetermined period of time from the start of supplying the input data and, then, being optimized by imposing a predetermined limitation after the passage of the predetermined period of time.
    • 一种采样频率转换装置,其在转换采样频率时容易地控制输入数据和输出数据之间的相位差(时间差),并且包括用于连续写入输入数据或通过对输入进行过采样而获得的数据的存储装置13 数据,并连续地读出相对于写入地址保持预定地址差的写入数据;以及内插处理装置14,用于内插从存储装置13读出的数据,以获得采样频率被转换的数据。 在转换采样频率时,优化存储装置13中的写入地址和读取地址之间的地址差异,在从提供输入数据开始的预定时间段内对地址差进行优化,而不限于此, 通过在经过预定时间段之后施加预定的限制来优化。
    • 7. 发明授权
    • Connector
    • 连接器
    • US06692287B2
    • 2004-02-17
    • US10169629
    • 2002-10-15
    • Nobuyuki Yasuda
    • Nobuyuki Yasuda
    • H01R13/627H01R24/14
    • H01R13/6275
    • A connection device including a plug unit (P) which has a connector plug (3) provided at an end portion of a signal cable and a receptacle unit (R) in which the plug unit (P) is inserted. The plug unit (P) has an unlocking member (4) supported on an outer circumferential surface of the connector plug (3) so as to be movable in the axial direction of the cable (2) and has a knob portion (12) mounted thereon. The receptacle unit (R), in which the plug unit (P) can be inserted and removed, has a lock member (5) housed in the receptacle unit (R) and adapted for being engaged with the connector plug (3) to lock the plug unit (P) and controlled by movement of the unlocking member (4) in the axial direction of the cable (2) via a cam portion (40) (41) provided on an outer circumferential surface of the unlocking member (4), thus locking and unlocking the connector plug (3) inserted in the receptacle unit (R).
    • 一种连接装置,包括具有设置在信号电缆的端部的连接器插头(3)的插头单元(P)和插入插头单元(P)的插座单元(R)。 插头单元(P)具有支撑在连接器插头(3)的外周面上的解锁构件(4),以便能够在电缆(2)的轴向方向上移动,并且具有安装在该电缆 上。 可插拔插头单元(P)的插座单元(R)具有容纳在插座单元(R)中并适于与连接器插头(3)接合以锁定的锁定构件(5) 所述插头单元(P)通过设置在所述解锁构件(4)的外周面上的凸轮部(40)(41)在所述电缆(2)的轴向上由所述解锁构件(4)的移动而被控制, 从而锁定和解锁插入插座单元(R)中的连接器插头(3)。
    • 9. 发明授权
    • Apparatus for correcting waveform distortion
    • 用于校正波形失真的装置
    • US5311559A
    • 1994-05-10
    • US940102
    • 1992-09-03
    • Nobuyuki Yasuda
    • Nobuyuki Yasuda
    • H03K5/131H03K5/14H04L25/03H04L25/49H04L7/06
    • H04L25/4904
    • An apparatus for correcting wave distortion. An input signal is supplied to a delay circuit, the input signal being so modulated that an accumulated value of a time interval from its leading edge to its trailing edge equals another accumulated value of another time interval from a trailing edge to a leading edge. The delay circuit generates plural successively delayed outputs, each of which has a certain time delay shorter than the time interval. A selector selects a plurality of delayed signals among the plural delayed outputs. A synthesizer synthesizes a plurality of delayed signals so that a synthesized signal can be obtained by correcting at least one of the time interval and the another time interval through the certain time delay. A detector detects a difference between a time interval from a leading edge to a trailing edge and another time interval from a trailing edge to a leading edge of the synthesized signal out of the synthesizer. A generator generates a control signal which controls, based on a detected output by the detector, the selecting operation and the synthesizing operation so as to accumulate a value of a time interval from a leading edge to a trailing edge of the synthesized signal equal to another accumulated value of another time interval from a trailing edge to a leading edge of the synthesized signal.
    • 用于校正波形失真的装置。 输入信号被提供给延迟电路,输入信号被调制成使得从其前沿到其后沿的时间间隔的累积值等于从后沿到前沿的另一个时间间隔的另一累积值。 延迟电路产生多个相继延迟的输出,每个输出的时间延迟比时间间隔短。 选择器选择多个延迟输出中的多个延迟信号。 合成器合成多个延迟信号,从而可以通过在一定的时间延迟中校正时间间隔和另一时间间隔中的至少一个来获得合成信号。 检测器检测从前沿到后沿的时间间隔和从合成器的合成信号的后沿到前沿的另一时间间隔之间的差异。 发生器产生控制信号,该控制信号基于检测器的检测输出来控制选择操作和合成操作,以便累加从合成信号的前沿到后沿等于另一个的时间间隔的值 从合成信号的后沿到前沿的另一个时间间隔的累积值。
    • 10. 发明授权
    • Ophthalmological measuring apparatus
    • 眼科测量仪器
    • US4744649A
    • 1988-05-17
    • US863046
    • 1986-05-14
    • Masao NiinoNobuyuki YasudaKoichiro KakizawaTadashi IchihashiMasunori Kawamura
    • Masao NiinoNobuyuki YasudaKoichiro KakizawaTadashi IchihashiMasunori Kawamura
    • A61B3/117A61B3/12A61B3/135A61B3/10A61B3/14
    • A61B3/135A61B3/10
    • An ophthalmological measuring apparatus having a laser-slit projector unit for projecting a laser beam on a portion in a human eyeball, a microscope unit adapted for receiving and observing the light reflected from the portion in the eyeball and a detector unit adapted for displaying the observing point in the eyeball projected by the laser beam. The microscope unit includes an objective optical system, an imaging optical system, a scattered light pickup prism disposed between the objective optical system and the imaging optical system and having a reflecting surface for diverging and directing a part of the reflected light, a beam splitter for superposing another optical axis parallel to the optical axis diverged by the prism on the optical axis of the imaging optical system, a converging optical system for receiving the diverged optical axis and the other optical axis parallel thereto, and an optical fiber having one end disposed adjacent to the focal plane of the converging optical system and movable up and down and right and left. The detector unit includes a photoelectric device directed to the other end of the optical fiber, a wavelength separating mirror disposed between the other end of the optical fiber and the photoelectric device, a light emitting diode disposed on the reflecting side of the mirror and adapted for emitting light having a wavelength different from that of the laser beam, and a right-to-left inverting optical system disposed between the beam splitter and the converging optical system.
    • 一种眼科测量装置,具有用于将激光束投射在人眼球部分上的激光狭缝投影仪单元,适于接收和观察从眼球部分反射的光的显微镜单元和适于显示观察的检测器单元 指向由激光束投影的眼球。 显微镜单元包括物镜光学系统,成像光学系统,设置在物镜光学系统和成像光学系统之间的散射光拾取棱镜,并具有用于发散和引导部分反射光的反射表面,用于 将与棱镜分离的光轴平行的另一个光轴叠加在成像光学系统的光轴上,会聚光学系统用于接收发散的光轴和与其平行的另一个光轴,以及光纤,其一端设置在相邻 到会聚光学系统的焦平面,上下左右移动。 检测器单元包括指向光纤另一端的光电装置,设置在光纤的另一端和光电装置之间的波长分离镜,设置在反射镜的反射面上的发光二极管, 发射具有与激光束不同的波长的光,以及设置在分束器和会聚光学系统之间的从右到左的反转光学系统。