公开(公告)号：US07769188B2

公开(公告)日：2010-08-03

申请号：US12197611

申请日：2008-08-25

申请人： Tetsuya Wakui

发明人： Tetsuya Wakui

IPC分类号： H04B15/00 ,  G11B27/36

CPC分类号： H04N5/772 ,  H04N5/2351 ,  H04N5/2354 ,  H04N5/782 ,  H04N5/911 ,  H04N9/802

摘要： According to this invention, if noise generated by operation of a component such as a rotary drum of a recording/playback apparatus which operates periodically enters a microphone, noise waveforms can be extracted and reduced. Data obtained from microphones (6, 7) are converted into digital data by A/D converters (11, 12) and are supplied to a control microcomputer (5) and adders (15, 16). The control microcomputer (5) has a memory which stores input data for respective mechanical noise generation cycles. The microcomputer (5) calculates the average of inphase data in each cycle, thereby generating only data of noise components and storing the result in memories (13, 14). The adders (15, 16) output data without noise components by subtracting the inphase data stored in the memories (13, 14) from input current data.

摘要翻译： 根据本发明，如果通过操作周期性的记录/重放装置的旋转鼓的部件的操作产生的噪声进入麦克风，则可以提取和减少噪声波形。 从麦克风（6,7）获得的数据由A / D转换器（11,12）转换成数字数据，并提供给控制微机（5）和加法器（15,16）。 控制微型计算机（5）具有存储各个机械噪声发生周期的输入数据的存储器。 微计算机（5）计算每个周期中的同相数据的平均值，从而仅生成噪声分量的数据并将结果存储在存储器（13,14）中。 加法器（15,16）通过从输入当前数据中减去存储在存储器（13,14）中的同相数据而输出没有噪声分量的数据。

公开(公告)号：US07433475B2

公开(公告)日：2008-10-07

申请号：US10992696

申请日：2004-11-22

申请人： Tetsuya Wakui

发明人： Tetsuya Wakui

IPC分类号： H04B1/02 ,  G11B27/36 ,  H04B10/12

CPC分类号： H04N5/772 ,  H04N5/2351 ,  H04N5/2354 ,  H04N5/782 ,  H04N5/911 ,  H04N9/802

摘要： According to this invention, if noise generated by operation of a component such as a rotary drum of a recording/playback apparatus which operates periodically enters a microphone, noise waveforms can be extracted and reduced. Data obtained from microphones (6, 7) are converted into digital data by A/D converters (11, 12) and are supplied to a control microcomputer (5) and adders (15, 16). The control microcomputer (5) has a memory which stores input data for respective mechanical noise generation cycles. The microcomputer (5) calculates the average of inphase data in each cycle, thereby generating only data of noise components and storing the result in memories (13, 14). The adders (15, 16) output data without noise components by subtracting the inphase data stored in the memories (13, 14) from input current data.

摘要翻译： 根据本发明，如果通过操作周期性的记录/重放装置的旋转磁鼓的部件的操作产生的噪声进入麦克风，则可以提取和减少噪声波形。 从麦克风（6,7）获得的数据由A / D转换器（11,12）转换成数字数据，并提供给控制微机（5）和加法器（15,16）。 控制微型计算机（5）具有存储各个机械噪声发生周期的输入数据的存储器。 微计算机（5）计算每个周期中的同相数据的平均值，从而仅生成噪声分量的数据并将结果存储在存储器（13,14）中。 加法器（15,16）通过从输入当前数据中减去存储在存储器（13,14）中的同相数据而输出没有噪声分量的数据。

公开(公告)号：US20070225924A1

公开(公告)日：2007-09-27

申请号：US11723855

申请日：2007-03-22

申请人： Takumi Hashizume ,  Tetsuya Wakui ,  Jyun-ichi Eino ,  Nobuo Miyaji

发明人： Takumi Hashizume ,  Tetsuya Wakui ,  Jyun-ichi Eino ,  Nobuo Miyaji

IPC分类号： G06F19/00 ,  G06F17/40

CPC分类号： G01L27/007

摘要： A detecting apparatus includes the following units. A pressure detecting unit detects in time series higher and lower static pressures and a differential pressure. Fluctuation calculating units calculate time series data sets of a differential pressure fluctuation, a higher static pressure fluctuation, and a lower static pressure fluctuation. Square sum calculating units calculate the square sum of the time series data sets of the differential pressure fluctuation, the square sum of the time series data sets of the higher static pressure fluctuation, and the square sum of the time series data sets of the lower static pressure fluctuation. A correlation coefficient calculating unit calculates first and second correlation coefficients. An intermediate variable calculating unit calculates an intermediate variable. A blockage rate calculating unit calculates a blockage rate. A determination unit determines a blockage of higher and lower pressure impulse lines with reference to the blockage rate.

摘要翻译： 检测装置包括以下单元。 压力检测单元以时间序列检测较高和较低的静压和压差。 波动计算单位计算差压波动的时间序列数据组，较高的静压波动和较低的静压波动。 平方和计算单位计算差压波动的时间序列数据集的平方和，较高静压波动的时间序列数据集的平方和和下静态的时间序列数据集的平方和 压力波动。 相关系数计算单元计算第一和第二相关系数。 中间变量计算单元计算中间变量。 堵塞率计算单元计算堵塞率。 确定单元参考堵塞率确定较高和较低压力脉冲线的阻塞。

公开(公告)号：US5459622A

公开(公告)日：1995-10-17

申请号：US908444

申请日：1992-06-30

申请人： Koji Tajima ,  Tetsuya Wakui

发明人： Koji Tajima ,  Tetsuya Wakui

IPC分类号： H04N5/783 ,  G11B15/18 ,  G11B15/467 ,  G11B15/473 ,  G11B21/04

CPC分类号： G11B15/1875 ,  G11B15/4671

摘要： A rotation control device including a rotary head drum drive circuit for driving rotation of a rotary head drum, a tape transport mechanism for transporting a tape in a predetermined direction relative to the rotary head drum, and a correction circuit for detecting a change of the speed of transportation of the tape to supply correction information to the rotary head drum drive circuit so that the driving state of the rotary head drum is corrected.

摘要翻译： 一种旋转控制装置，包括用于驱动旋转磁头鼓的旋转的旋转磁头鼓驱动电路，用于相对于旋转磁头鼓在预定方向上传送磁带的磁带传送机构，以及用于检测速度变化的校正电路 传送带子以向旋转磁头鼓驱动电路提供校正信息，从而校正旋转磁头鼓的驱动状态。

公开(公告)号：US5067033A

公开(公告)日：1991-11-19

申请号：US369011

申请日：1989-06-15

申请人： Tetsuya Wakui

发明人： Tetsuya Wakui

IPC分类号： G11B15/473 ,  H02P29/00

CPC分类号： G11B15/4731

摘要： A rotation control device comprises a rotary body arranged to move a head and a recording medium relative to each other in performing recording or reproduction on or from the recording medium; means for performing speed servo-control by detecting any speed deviation of the rotary body; means for performing phase servo-control by detecting any phase deviation of the rotary body; and means for performing the speed servo-control over the rotary body by detecting a phase-locked state of the rotary body and by synchronizing the rotary body with a synchronizing signal reproduced from the recording medium.

摘要翻译： 旋转控制装置包括旋转体，其被布置成在记录介质上或从记录介质上进行记录或再现时相对于彼此移动头部和记录介质; 用于通过检测旋转体的任何速度偏差来执行速度伺服控制的装置; 用于通过检测旋转体的任何相位偏差进行相位伺服控制的装置; 以及用于通过检测旋转体的锁相状态并使旋转体与从记录介质再现的同步信号同步来对旋转体执行速度伺服控制的装置。

公开(公告)号：US20080316338A1

公开(公告)日：2008-12-25

申请号：US12197611

申请日：2008-08-25

申请人： Tetsuya Wakui

发明人： Tetsuya Wakui

IPC分类号： H04N5/76

CPC分类号： H04N5/772 ,  H04N5/2351 ,  H04N5/2354 ,  H04N5/782 ,  H04N5/911 ,  H04N9/802

摘要： According to this invention, if noise generated by operation of a component such as a rotary drum of a recording/playback apparatus which operates periodically enters a microphone, noise waveforms can be extracted and reduced. Data obtained from microphones (6, 7) are converted into digital data by A/D converters (11, 12) and are supplied to a control microcomputer (5) and adders (15, 16). The control microcomputer (5) has a memory which stores input data for respective mechanical noise generation cycles. The microcomputer (5) calculates the average of inphase data in each cycle, thereby generating only data of noise components and storing the result in memories (13, 14). The adders (15, 16) output data without noise components by subtracting the inphase data stored in the memories (13, 14) from input current data.

摘要翻译： 根据本发明，如果通过操作周期性的记录/重放装置的旋转鼓的部件的操作产生的噪声进入麦克风，则可以提取和减少噪声波形。 从麦克风（6,7）获得的数据由A / D转换器（11,12）转换成数字数据，并提供给控制微机（5）和加法器（15,16）。 控制微型计算机（5）具有存储各个机械噪声发生周期的输入数据的存储器。 微计算机（5）计算每个周期中的同相数据的平均值，从而仅生成噪声分量的数据并将结果存储在存储器（13,14）中。 加法器（15,16）通过从输入当前数据中减去存储在存储器（13,14）中的同相数据而输出没有噪声分量的数据。

公开(公告)号：US07260496B2

公开(公告)日：2007-08-21

申请号：US11442573

申请日：2006-05-25

申请人： Takumi Hashizume ,  Tetsuya Wakui ,  Nobuo Miyaji

发明人： Takumi Hashizume ,  Tetsuya Wakui ,  Nobuo Miyaji

IPC分类号： G08B21/00

CPC分类号： G01L13/00 ,  Y10T137/8242 ,  Y10T137/8326

摘要： A pressure detector for detecting a high side pressure from a high pressure side impulse line and a low side pressure from a low pressure side impulse line includes a high side pressure variance calculating section for calculating a high side pressure variance from a high side pressure fluctuation calculated from a high side pressure signal, a low side pressure variance calculating section for calculating a low side pressure variance from a low side pressure fluctuation calculated from a low side pressure signal, a rate calculating section for calculating a variable according to a ratio of the high side pressure variance to the low side pressure variance, and a determining section for determining blockage of the high pressure side impulse line or blockage of the low pressure side impulse line based on a value of the variable.

摘要翻译： 用于从高压侧脉冲线检测高侧压力和低压侧脉冲线路的低侧压力的压力检测器包括：高侧压力方差计算部分，用于从计算出的高侧压力波动计算高侧压力差异 从高侧压力信号，低侧压力方差计算部分，用于根据从低侧压力信号计算的低侧压力波动计算低侧压力变化;速率计算部分，用于根据高压压力信号的比率计算变量 以及确定部，用于基于所述变量的值来确定所述高压侧脉冲线的阻塞或所述低压侧脉冲线的阻塞。

公开(公告)号：US20080208504A1

公开(公告)日：2008-08-28

申请号：US11861215

申请日：2007-09-25

申请人： Takumi HASHIZUME ,  Tetsuya Wakui ,  Jyun-ichi Eino ,  Nobuo Miyaji ,  Yoshitaka Yuki

发明人： Takumi HASHIZUME ,  Tetsuya Wakui ,  Jyun-ichi Eino ,  Nobuo Miyaji ,  Yoshitaka Yuki

IPC分类号： G01F1/50

CPC分类号： G01F1/50

摘要： This impulse line-clogging detecting apparatus is provide with: a differential pressure detecting unit that detects a differential pressure of a fluid, and outputs time series data of the differential pressure; a differential pressure fluctuation calculating unit that calculates a differential pressure fluctuation; a fluctuation variance calculating unit that calculates a variance of the differential pressure fluctuation; a variance ratio calculating unit that calculates a variance ratio of the differential pressure fluctuation variance calculated by the fluctuation variance calculating unit to a differential pressure fluctuation variance obtained in advance in a normal state of the high and low pressure side impulse lines; a variance ratio correcting unit that calculates a correction value for suppressing change of the variance ratio; and a clogging determining unit that determines whether the high and low pressure side impulse lines are clogged, based on the variance ratio corrected by the variance ratio correcting unit.

摘要翻译： 这种脉冲线堵塞检测装置具有：差压检测单元，其检测流体的压差，并输出压差的时间序列数据; 压差波动计算单元，计算压差波动; 波动方差计算单元，计算差压波动的方差; 方差比计算单元，其计算由所述波动方差计算单元计算出的压差波动方差的方差比与在所述高低压侧脉冲线的正常状态中预先获得的压差波动方差; 方差比校正单元，计算用于抑制方差比变化的校正值; 以及堵塞判定单元，其基于由所述方差比校正单元校正的方差比，判定高压侧脉冲和低压侧脉冲线是否堵塞。

公开(公告)号：US20060278006A1

公开(公告)日：2006-12-14

申请号：US11442573

申请日：2006-05-25

申请人： Takumi Hashizume ,  Tetsuya Wakui ,  Nobuo Miyaji

发明人： Takumi Hashizume ,  Tetsuya Wakui ,  Nobuo Miyaji

IPC分类号： G01L13/02

CPC分类号： G01L13/00 ,  Y10T137/8242 ,  Y10T137/8326

摘要： A pressure detector for detecting a high side pressure from a high pressure side impulse line and a low side pressure from a low pressure side impulse line includes a high side pressure variance calculating section for calculating a high side pressure variance from a high side pressure fluctuation calculated from a high side pressure signal, a low side pressure variance calculating section for calculating a low side pressure variance from a low side pressure fluctuation calculated from a low side pressure signal, a rate calculating section for calculating a variable according to a ratio of the high side pressure variance to the low side pressure variance, and a determining section for determining blockage of the high pressure side impulse line or blockage of the low pressure side impulse line based on a value of the variable.

摘要翻译： 用于从高压侧脉冲线检测高侧压力和低压侧脉冲线路的低侧压力的压力检测器包括：高侧压力方差计算部分，用于从计算出的高侧压力波动计算高侧压力差异 从高侧压力信号，低侧压力方差计算部分，用于根据从低侧压力信号计算的低侧压力波动计算低侧压力变化;速率计算部分，用于根据高压压力信号的比率计算变量 以及确定部，用于基于所述变量的值来确定所述高压侧脉冲线的阻塞或所述低压侧脉冲线的阻塞。

公开(公告)号：US5047879A

公开(公告)日：1991-09-10

申请号：US339121

申请日：1989-05-18

申请人： Tsutomu Fukatsu ,  Taizou Hori ,  Toshiyuki Masui ,  Takashi Kobayashi ,  Tetsuya Wakui ,  Koji Takahashi

发明人： Tsutomu Fukatsu ,  Taizou Hori ,  Toshiyuki Masui ,  Takashi Kobayashi ,  Tetsuya Wakui ,  Koji Takahashi

IPC分类号： G11B15/18 ,  G11B15/467 ,  G11B27/10 ,  G11B27/30

CPC分类号： G11B27/107 ,  G11B15/1875 ,  G11B15/467 ,  G11B27/30

摘要： A multi-channel reproducing apparatus which is capable of reproducing a recorded information signal from each of a plurality of areas of a tape shaped record bearing medium extending in the longitudinal direction of the medium is arranged to reproduce the information signal by repetitively allowing the medium to travel at a high speed while changing the information signal reproducing area from one area over to another.