公开(公告)号：US6041291A

公开(公告)日：2000-03-21

申请号：US118249

申请日：1998-07-17

申请人： Motohiro Yamazaki ,  Shuichi Ando ,  Akira Toyama

发明人： Motohiro Yamazaki ,  Shuichi Ando ,  Akira Toyama

IPC分类号： H03H17/02 ,  G06T9/00 ,  H03M7/38 ,  G06F17/10

CPC分类号： G06T9/004

摘要： A digital data processing circuit has an inverting circuit for inverting a positive/negative sign of the output data of an encoding circuit. A correcting circuit returns the inverted sign of the data to an original sign of data after decoding. Offset is made for truncation noises caused by the respective filtering operations in the encoding circuit and said decoding circuit. Sound quality is suppressed from degrading without increasing the circuit scale.

摘要翻译： 数字数据处理电路具有用于反转编码电路的输出数据的正/负符号的反相电路。 校正电路将解码后的数据的反相符号返回到数据的原始符号。 对由编码电路和解码电路中的各个滤波操作引起的截断噪声进行偏移。 在不增加电路规模的情况下，抑制声音质量下降。

公开(公告)号：US5703515A

公开(公告)日：1997-12-30

申请号：US620776

申请日：1996-03-22

申请人： Akira Toyama ,  Kazuhiro Shimizu

发明人： Akira Toyama ,  Kazuhiro Shimizu

IPC分类号： G01R31/28 ,  G01R31/3183 ,  G01R31/319 ,  H03K3/78 ,  H03K5/13 ,  H03K5/156 ,  H04L7/00 ,  H03K5/04

CPC分类号： H03K5/131 ,  G01R31/31922 ,  G01R31/31928 ,  H03K5/156 ,  G01R31/3191

摘要： A timing generator which receives a rate signal and generates an output signal based on the rate signal, and comprises at least two delay lines for causing delays in the rate signal, a formatter for receiving signals from the delay lines and for determining the rise and fall of an output signal according to such signals from the delay lines, and for generating an output signal, memories for storing delay time data from the delay lines, and a data selector for taking the delay time data from the memories and to switch the delay time data, whereby accurate timing signals are generated utilizing short skew adjustment time.

摘要翻译： 定时发生器，其接收速率信号并基于速率信号产生输出信号，并且包括用于引起速率信号延迟的至少两条延迟线，用于从延迟线接收信号并用于确定上升和下降的格式器 根据来自延迟线的这些信号的输出信号，以及用于产生输出信号的存储器，用于存储来自延迟线的延迟时间数据;以及数据选择器，用于从存储器获取延迟时间数据并切换延迟时间 数据，由此利用短的偏移调整时间产生精确的定时信号。

公开(公告)号：US5679942A

公开(公告)日：1997-10-21

申请号：US296437

申请日：1994-08-26

申请人： Akira Toyama

发明人： Akira Toyama

IPC分类号： G11B5/29 ,  G06K7/08 ,  G11B19/00

CPC分类号： G06K7/084

摘要： A magnetic card reader includes a first multi-channel magnetic head for reading signals from a magnetic card which inserted in a first direction, a second multi-channel magnetic head for reading signals from a magnetic head which is inserted in a second direction, a plurality of switching circuits for delivering signals supplied from the first multi-channel magnetic head and the second multi-channel magnetic head at respective channels thereof after switching each set of common channels of the first and second multi-channel magnetic heads, a plurality of amplifier circuits for amplifying output signals from the plurality of switching circuits, respectively, and a decision circuit for determining the direction of insertion of the magnetic cards on the basis of the output signals from the switching circuits and for selectively operating the switching circuits so as to deliver output signals associated with the direction of insertion of the magnetic cards.

摘要翻译： 磁卡阅读器包括用于读取从第一方向插入的磁卡的信号的第一多通道磁头，用于从沿第二方向插入的磁头读取信号的第二多通道磁头，多个 用于在切换第一和第二多通道磁头的每组公共通道之后，在其各个通道处递送从第一多通道磁头和第二多通道磁头提供的信号的开关电路;多个放大器电路 分别用于放大来自多个开关电路的输出信号，以及判定电路，用于根据来自开关电路的输出信号确定磁卡的插入方向，并选择性地操作开关电路，以便输出输出 与磁卡插入方向相关联的信号。

公开(公告)号：US5659317A

公开(公告)日：1997-08-19

申请号：US399327

申请日：1995-03-06

申请人： Akira Toyama ,  Kazuyuki Fujiwara

发明人： Akira Toyama ,  Kazuyuki Fujiwara

IPC分类号： G11B20/10 ,  H03M1/08 ,  H03M1/66 ,  H03M7/14

CPC分类号： G11B20/10009 ,  G11B20/10527

摘要： In a waveform data reproducing apparatus for a digital audio system, deterioration of sound quality is prevented by a digital audio waveform data reproducing apparatus which includes a digital preemphasis circuit 12 for digitally preemphasis-processing digital audio waveform data a1 to produce digitally preemphasized data c1, a D/A converter 14 for D/A-converting either the waveform data a1, or the digitally preemphasized data c1, a switch circuit 13 for causing the waveform data a1 to be connected to the D/A converter 14 when the waveform data a1 has been emphasis-processed, and for causing the digitally preemphasized waveform data c1 to be connected to the D/A converter 14 when the waveform data a1 is not emphasis-processed, and an analog deemphasis circuit 14 for analogically deemphasis-processing the output signal from the D/A converter 14.

摘要翻译： 在用于数字音频系统的波形数据再现装置中，通过数字音频波形数据再现装置防止声音质量的劣化，数字音频波形数据再现装置包括用于数字预加重处理数字音频波形数据a1的数字预加重电路12以产生数字预加密数据c1， 用于对波形数据a1或数字预加密数据c1进行D / A转换的D / A转换器14，用于当波形数据a1（...）时使波形数据a1连接到D / A转换器14的开关电路13 并且当波形数据a1未被强调处理时，使数字预加重的波形数据c1连接到D / A转换器14，以及用于模拟去加重该输出信号的模拟去加重电路14 来自D / A转换器14。

公开(公告)号：US5528531A

公开(公告)日：1996-06-18

申请号：US282190

申请日：1994-07-28

申请人： Akira Toyama ,  Minoru Takeda

发明人： Akira Toyama ,  Minoru Takeda

IPC分类号： G06F7/527 ,  G06F7/52

CPC分类号： G06F7/5275

摘要： A serial-to-parallel type multiplier capable of performing a highspeed calculation with high precision includes a selection circuit provided in a unit calculation block, an output of this selection circuit being input into an adder, and the selection circuit selectively outputs either a logic product between a multiplier bit to be input into this unit calculation block and a multiplicand bit input into this unit calculation block within one unit time period or a logic product between a multiplier bit to be input into this unit calculation block and a multiplicand bit input into this unit calculation block within a unit time period prior to the above-described one unit time period.

摘要翻译： 能够以高精度执行高速计算的串并行型乘法器包括设置在单位计算块中的选择电路，该选择电路的输出被输入到加法器中，并且选择电路选择性地输出逻辑积 在要输入到该单位计算块的乘法器位和在一个单位时间内输入到该单位计算块中的乘法位或在该单位计算块中输入的乘法器位之间的逻辑乘积以及输入到该单位计算块中的乘法位 在上述一个单位时间段之前的单位时间段内的单位计算块。

公开(公告)号：US5523712A

公开(公告)日：1996-06-04

申请号：US399310

申请日：1995-03-06

申请人： Satoru Miyabe ,  Akira Toyama ,  Minoru Takeda

发明人： Satoru Miyabe ,  Akira Toyama ,  Minoru Takeda

IPC分类号： H03F1/00 ,  H03G1/00 ,  H03G3/00 ,  H03G3/02 ,  H03G3/10 ,  H03G3/12

CPC分类号： H03G1/0088 ,  H03G3/001

摘要： To provide a resistor array circuit device and variable gain device which make possible precise setting of attenuation factors and the like as well as prevention of generation of gridge noise, a resistor array circuit device has resistors R1.sub.1 to R1.sub.n-1, each with a resistance value R, resistors R2.sub.1 to R2.sub.n, each with a resistance value aR, resistor R3 having a resistance value (l+b)R, switches SW.sub.1 to SW.sub.n for switching connection of resistors R2.sub.1 to R2.sub.n to a terminal T3 or a terminal T4, and a control circuit for controlling switches SW.sub.1 to SW.sub.n so that resistors R2.sub.1 to R2.sub.m-1 on a terminal T1 side of an arbitrary resistor R2.sub.m are connected to terminal T4 and resistors R2.sub.m to R2.sub.n on a terminal T2 side of resistor R2.sub.m are connected to terminal T3, the values of the a and b being determined based on b={-1+(1+4a).sup.1/2 }/2 and 1/2

摘要翻译： 为了提供可以精确设定衰减因子等的电阻阵列电路装置和可变增益装置，并且防止产生格栅噪声，电阻阵列电路装置具有电阻器R11至R1n-1，每个电阻值具有电阻值 R，具有电阻值aR的电阻器R21〜R2n，具有电阻值（1 + b）R的电阻器R3，将用于将电阻器R21〜R2n的连接切换到端子T3或端子T4的SW1〜SWn，以及 用于控制开关SW1至SWn的控制电路，使得任意电阻器R2m的端子T1侧上的电阻器R21至R2m-1连接到端子T4，并且电阻器R2m的端子T2侧上的电阻器R2m至R2n连接到端子T3， 基于b = { - 1+（1 + 4a）1/2} / 2和1/2

公开(公告)号：US5365458A

公开(公告)日：1994-11-15

申请号：US856258

申请日：1992-03-25

申请人： Itaru Tamura ,  Akira Toyama

发明人： Itaru Tamura ,  Akira Toyama

IPC分类号： G01B7/312 ,  G01B21/20

CPC分类号： G01B7/312

摘要： A motor eccentricity measuring apparatus is provided comprising a detecting device for detecting a deflection of the rotating shaft of a motor, a first, a second, and a third hold device for holding detected values supplied from the detecting device, and an amplifier device for amplifying a difference between two outputs of the first and the second hold device. In operation, RRO is calculated, during a first measuring period, from the detected values of the first and third hold device and NRRO is calculated, during a second measuring period, from the detected values of the first and second hold device and simultaneously, amplified with the amplifier device.

摘要翻译： 一种电动机偏心测量装置，包括用于检测电动机的旋转轴的偏转的检测装置，用于保持从检测装置提供的检测值的第一，第二和第三保持装置，以及放大装置 第一和第二保持装置的两个输出之间的差异。 在操作中，在第一测量周期期间，从第一和第三保持装置的检测值和在第二测量周期期间根据第一和第二保持装置的检测值计算NRRO，并且同时放大RRO， 与放大器设备。

公开(公告)号：US4864305A

公开(公告)日：1989-09-05

申请号：US167346

申请日：1988-03-14

申请人： Akira Toyama

发明人： Akira Toyama

IPC分类号： H03M1/04 ,  H03M1/00

CPC分类号： H03M1/0639 ,  H03M1/74

摘要： A digital-to-analog converting device, particularly useful in audio device such as compact disc players, including an adder (CA; CA1, CA2) for adding a common random data to a digital data (d) supplied at a constant period and to a sign-reversed data (d), respectively. The signals containing the added random data are converted into analog form by a digital-to-analog converter (DT; DT1, DT2). The difference is taken between the analog signals obtained from the digital data (d) containing the added random data and the sign-reversed data (d) containing the added random data. Such circuit arrangement can provide an analog ouput signal having an amplitude which is twice as large as that obtained by the prior art and yet the resistance thermal noise contained in such analog signal has a reduced relative magnitude, whereby an improvement in signal-to-noise ratio and in tone quality can be achieved.

摘要翻译： 一种数字 - 模拟转换装置，特别适用于诸如光盘播放器的音频装置，包括用于将公共随机数据添加到以恒定周期提供的数字数据（d）的加法器（CA; CA1，CA2）和 一个符号反转的数据（＆upbar＆d）。 包含添加的随机数据的信号通过数模转换器（DT; DT1，DT2）转换为模拟形式。 在从包含添加的随机数据的数字数据（d）获得的模拟信号与包含添加的随机数据的符号反转数据（＆amp; upbar＆d）之间取得差异。 这种电路装置可以提供具有现有技术获得的幅度的两倍的幅度的模拟输出信号，并且包含在这种模拟信号中的电阻热噪声具有减小的相对幅度，从而信号对噪声的改善 比例和音质可以实现。

公开(公告)号：US3992168A

公开(公告)日：1976-11-16

申请号：US461510

申请日：1974-04-17

申请人： Akira Toyama ,  Yukio Nakako ,  Toshio Kanazawa

发明人： Akira Toyama ,  Yukio Nakako ,  Toshio Kanazawa

IPC分类号： B01D5/00 ,  F25J3/00 ,  F28D9/00 ,  F28F13/14 ,  F28F27/02 ,  F25J3/02

CPC分类号： F28F9/0268 ,  B01D5/0015 ,  B01D5/0036 ,  F25J5/007 ,  F28D9/0068 ,  F28F13/14 ,  F25J2210/20 ,  F25J2250/04 ,  F25J2290/32 ,  F28D2021/0033 ,  Y10S62/903

摘要： In a heat exchanger comprising a plurality of first heat-transfer elements (A) for a fluid of higher temperature and second heat-transfer elements (B) for a fluid of lower temperature joined alternately and adjacently and a suitable number of appropriately shaped fins disposed within said elements and wherein the heat exchange is performed between the fluid (a) of higher temperature and the fluid (b) of lower temperature and at least the fluid (a) is changed in phase during the heat exchange, the improvement of providing such a heat exchanger with the ability to rectify the condensate from the fluid (a) and to recover the rectified liquid, wherein the fins in the lower part of the element (A) are so arranged that the fluid (a) entering from a port into the element (A) flows upwards smoothly with contact with the liquid condensed from the fluid (a) at the upper part of the element (A), which flows down through the heat exchanger. The condensed liquid flows down through the fins and is taken out from a port provided at the lowest part of the element (A). Accordingly, condensation of a gaseous fluid and rectification of the resulting condensate are both performed with high efficiency in the same apparatus.

摘要翻译： 在包括用于较高温度的流体的多个第一传热元件（A）和用于低温交替和相邻接合的流体的第二传热元件（B）的热交换器中，并配置适当数量的适当形状的翅片 在所述元件内，并且其中，在热交换期间，在较高温度的流体（a）和较低温度的流体（b）和至少流体（a）之间进行热交换在相位上改变， 具有能够从流体（a）整流冷凝物并回收整流液体的热交换器，其中元件（A）的下部中的翅片被布置成使得流体（a）从端口进入 元件（A）在与从元件（A）的上部流体（a）冷凝的液体接触时平滑地向上流动，该液体向下流过热交换器。 冷凝的液体向下流过翅片，并从设置在元件（A）的最下部的端口取出。 因此，在相同的装置中，气态流体的冷凝和所得冷凝物的精馏都以高效率进行。