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    • 3. 发明授权
    • Optical pickup device and apparatus for reading data from optical storage medium
    • 用于从光学存储介质读取数据的光学拾取装置和装置
    • US07522482B2
    • 2009-04-21
    • US10921836
    • 2004-08-20
    • Kiyoshi TateishiKazuo TakahashiMitsuru SatoIchiro Sugai
    • Kiyoshi TateishiKazuo TakahashiMitsuru SatoIchiro Sugai
    • G11B7/00
    • G11B7/08511G11B7/0945G11B2007/0013
    • An optical pickup is provided for preventing an objective lens from colliding with an optical recording medium at the stage of initial adjustments. The optical pickup device comprises a servo circuit, and a lens driver for driving an objective lens. In the servo circuit, a drive signal generator supplies the lens driver with one of a first focus drive signal for moving the objective lens in a direction closer to an information recording layer, and a second focus drive signal for moving the objective lens in a direction away from the information recording layer. A controller in a timing generator switches a signal supplied to the lens driver from the first focus drive signal to the second focus drive signal when the level changes by a predetermined range or more in a servo signal which is generated during a period in which the first focus drive signal is being supplied to the lens driver.
    • 提供了一种用于在初始调整阶段防止物镜与光记录介质碰撞的光拾取器。 光学拾取装置包括伺服电路和用于驱动物镜的透镜驱动器。 在伺服电路中,驱动信号发生器向透镜驱动器提供用于使物镜沿更靠近信息记录层的方向移动的第一聚焦驱动信号和用于使物镜沿方向移动的第二聚焦驱动信号 远离信息记录层。 定时发生器中的控制器在第一聚焦驱动信号中提供给镜头驱动器的信号切换到第二聚焦驱动信号,当电平在伺服信号中改变预定范围或更大时,该伺服信号是在第一 聚焦驱动信号被提供给镜头驱动器。
    • 5. 发明授权
    • Optical pickup transfer apparatus
    • 光学传送装置
    • US07489603B2
    • 2009-02-10
    • US10594621
    • 2005-03-22
    • Kazuo TakahashiIchiro Sugai
    • Kazuo TakahashiIchiro Sugai
    • G11B7/00
    • G11B7/08582
    • An apparatus including a first engaging portion for holding an optical pickup, a second engaging portion to be engaged with the first engaging portion, a transfer portion for driving the second engaging portion to transfer the first engaging portion in a radial direction, a calculating portion for calculating a backlash value between the first and second engaging portions in a transfer direction of the first engaging portion, and a driving control unit. The driving control unit controls a driving portion to transfer the optical pickup based on a calculated backlash value.
    • 一种装置,包括用于保持光学拾取器的第一接合部分,与第一接合部分接合的第二接合部分,用于驱动第二接合部分以沿径向传递第一接合部分的传送部分,用于 计算第一和第二接合部分之间在第一接合部分的传送方向上的间隙值和驱动控制单元。 驱动控制单元基于计算出的间隙值来控制驱动部分以传送光学拾取器。
    • 6. 发明授权
    • Control device for optical disk player that corrects rotational frequency data based on input data
    • 基于输入数据校正旋转频率数据的光盘播放机的控制装置
    • US06958966B2
    • 2005-10-25
    • US10379678
    • 2003-03-06
    • Kiyoshi TateishiIchiro Sugai
    • Kiyoshi TateishiIchiro Sugai
    • G11B7/0037G11B7/00G11B7/095G11B19/247H02P5/00H02P29/00
    • G11B19/247G11B7/095
    • An optical disc player having an optical pickup records and retrieves information on an optical disc while the optical disc is rotating. A rotation pulse is generated each time the optical disc rotates through a prescribed angle. A rotation frequency data representing a frequency of the rotation pulse is also generated. A servo processor performs servo processing for rotation control on the optical disc in accordance with the rotation frequency data. A sampling pulse generator performs computational processing on an input data signal to generate a sampling pulse. The sampling pulse generator also corrects the rotation frequency data based on a phase error between the sampling pulse and the rotation pulse to use a corrected rotation frequency data as the input data signal. Another servo processor performs servo processing for repetitive control on the optical pickup using the sampling pulse.
    • 具有光学拾取器的光盘播放器在光盘旋转的同时在光盘上记录和检索信息。 每当光盘旋转规定角度时产生旋转脉冲。 也产生表示旋转脉冲的频率的旋转频率数据。 伺服处理器根据旋转频率数据执行用于光盘上的旋转控制的伺服处理。 采样脉冲发生器对输入数据信号执行计算处理以产生采样脉冲。 采样脉冲发生器还基于采样脉冲和旋转脉冲之间的相位误差校正旋转频率数据,以使用校正的旋转频率数据作为输入数据信号。 另一个伺服处理器使用采样脉冲对光拾取器进行重复控制的伺服处理。
    • 9. 发明申请
    • TONE EMPHASIZING DEVICE, TONE EMPHASIZING METHOD, TONE EMPHASIZING PROGRAM, AND RECORDING MEDIUM
    • 音调音乐设备,音色演化方法,音调演绎程序和录音媒体
    • US20100189283A1
    • 2010-07-29
    • US12667138
    • 2007-07-03
    • Ichiro Sugai
    • Ichiro Sugai
    • H03G9/00
    • H04S3/00
    • A tone emphasizing device includes a tone emphasizing unit that includes a level detecting unit that detects a fundamental tone level of a tone of a given pitch included in an original tone reproduced by a data player; an extracting unit that extracts frequency components of a fundamental tone and overtones from the original tone; a frequency correcting unit that eliminates, from the extracted frequency components, frequency components equal to or lower than the fundamental tone and frequency components equal to or higher than an overtone included in the tone of the given pitch; and a level adjusting unit that adjusts, according to results obtained by the level detecting unit, a level of the corrected tone. The tone emphasizing device further includes an amplifying unit that amplifies to a desired level, the tone having an adjusted level; and an adding unit that adds to the original tone, the amplified tone.
    • 音调强调装置包括:音调强调单元,其包括电平检测单元,其检测由数据播放器再现的原始音调中包括的给定音调的音调的基本音调电平; 提取单元,从原音调提取基本色调的频率分量和泛音; 频率校正单元,从所提取的频率分量中消除等于或低于包括在给定音调的音调中的泛音的基本乐音和频率分量的频率分量; 以及电平调整单元,其根据电平检测单元获得的结果调整校正音的电平。 音调强调装置还包括放大单元,其放大到期望的电平,音调具有调整的电平; 以及添加单元,其增加原始音调,放大的音调。