公开(公告)号：US20070024364A1

公开(公告)日：2007-02-01

申请号：US11425753

申请日：2006-06-22

Applicant: Akira Yasuda ,  Toru Ido

Inventor： Akira Yasuda ,  Toru Ido

IPC: H03F3/68

CPC classification number: H03F3/68 ,  H03F1/02 ,  H03F3/211 ,  H03F2200/513

Abstract: An amplifier having an increased the upper limit on the amplitude of an audio signal generated between one common terminal and the output terminals of left and right channels without raising the power supply voltage. The level at common terminal C is changed corresponding to the average of the input audio signals (ViL, ViR) to increase the amplitudes of the output audio signals (VL, VR). In this way, the amplitudes of audio signals (VL, VR) supplied to the headphone can be increased compared with the case when the level at terminal C is kept constant. Also, the upper limit on the amplitudes of audio signals (VL, VR) can be increased without raising the power supply voltage.

Abstract translation: 放大器具有增加在一个公共端子与左右声道的输出端子之间产生的音频信号的振幅的上限而不增加电源电压。 公共端C的电平根据输入音频信号（ViL，ViR）的平均值而变化，以增加输出音频信号（VL，VR）的幅度。 以这种方式，与端子C上的电平保持恒定的情况相比，提供给耳机的音频信号（VL，VR）的幅度可以增加。 此外，可以在不提高电源电压的情况下增加音频信号（VL，VR）的振幅的上限。

公开(公告)号：US09447237B2

公开(公告)日：2016-09-20

申请号：US14123296

申请日：2012-05-21

Applicant: Makoto Kato ,  Toru Ido ,  Shizuka Hachiken

Inventor： Makoto Kato ,  Toru Ido ,  Shizuka Hachiken

IPC: C08G65/12 ,  C08G65/08 ,  C08G65/10 ,  C08G65/26

CPC classification number: C08G65/08 ,  C08G65/10 ,  C08G65/12 ,  C08G65/266 ,  C08G65/269 ,  Y10T428/2982

Abstract: The present invention relates to a production method of polyalkylene oxide particles including a step of forming the polyalkylene oxide particles by polymerization of an alkylene oxide in a polymerization solution containing a polymerization solvent and a catalyst dispersed in the polymerization solvent. The average particle diameter of the catalyst is 25 μm or less.

Abstract translation: 本发明涉及聚环氧烷颗粒的制造方法，其包括通过在聚合溶剂和分散在聚合溶剂中的催化剂的聚合溶液中聚合烯化氧来形成聚环氧烷颗粒的步骤。 催化剂的平均粒径为25μm以下。

公开(公告)号：US07932779B2

公开(公告)日：2011-04-26

申请号：US12102163

申请日：2008-04-14

Applicant: Toru Ido ,  Soichiro Ishizuka

Inventor： Toru Ido ,  Soichiro Ishizuka

IPC: H03F3/217

CPC classification number: H03F3/217

Abstract: A D-class amplifier that can suppress noise generated when a D-class amplification operation is started/stopped. When a D-class amplification operation is started/stopped, the pulse widths and pulse interval of output signals Pout1, Pout2 are gradually changed, so it is possible to prevent a large variation in the signal fed as a differential signal of output signals Pout1, Pout2 to the load, and it is possible to reduce noise. That is, by gradually changing the pulse interval while keeping the pulse widths of output signals Pout1, Pout2 constant, it is possible to suppress variation in the relatively high frequency component corresponding to the component of the pulse signal. Also, by gradually changing the widths of output signals Pout1, Pout2 while keeping the pulse interval constant, it is possible to suppress variation in the relatively low frequency component corresponding to the average value of the pulse signal.

Abstract translation: 可以抑制D级放大动作开始/停止时产生的噪声的D级放大器。 当D级放大操作开始/停止时，输出信号Pout1，Pout2的脉冲宽度和脉冲间隔逐渐变化，因此可以防止作为输出信号Pout1的差分信号馈送的信号的大的变化， Pout2到负载，可以减少噪音。 也就是说，通过在保持输出信号Pout1，Pout2的脉冲宽度保持恒定的同时逐渐改变脉冲间隔，可以抑制与脉冲信号的分量对应的相对高频分量的变化。 此外，通过在保持脉冲间隔恒定的同时逐渐改变输出信号Pout1，Pout2的宽度，可以抑制与脉冲信号的平均值相对应的相对低频分量的变化。

公开(公告)号：US07623055B2

公开(公告)日：2009-11-24

申请号：US11697228

申请日：2007-04-05

Applicant: Toru Ido ,  Soichiro Ishizuka

Inventor： Toru Ido ,  Soichiro Ishizuka

IPC: H03M1/80

CPC classification number: H03M1/0668 ,  H03M1/747 ,  H03M3/502

Abstract: A weight level generator is provided. Weight level generator W has plural weight generators 5-1-5-j. At least one of said plural weight generators is used at at least two different time rates. Also, a digital-to-analog converter (DAC) using said weight generators is equipped with a digital signal source, a weight controller, and a weight generator.

Abstract translation: 提供了一个重量级发生器。 重量发生器W具有多个重量发生器5-1-5-j。 所述多个重量发生器中的至少一个以至少两个不同的时间率使用。 此外，使用所述重量发生器的数模转换器（DAC）配备有数字信号源，重量控制器和重量发生器。

公开(公告)号：US09416226B2

公开(公告)日：2016-08-16

申请号：US14123340

申请日：2012-05-21

Applicant: Makoto Kato ,  Toru Ido ,  Shizuka Hachiken

Inventor： Makoto Kato ,  Toru Ido ,  Shizuka Hachiken

IPC: C08G65/12 ,  C08G65/08 ,  C08G65/10 ,  C08G65/26

CPC classification number: C08G65/08 ,  C08G65/10 ,  C08G65/12 ,  C08G65/266 ,  C08G65/269 ,  Y10T428/2982

Abstract: The present invention relates to a production method of polyalkylene oxide particles including a step of forming the polyalkylene oxide particles by polymerization of an alkylene oxide in a polymerization solution containing a polymerization solvent and a catalyst dispersed in the polymerization solvent. The average particle diameter of the catalyst is more than 25 μm.

Abstract translation: 本发明涉及聚环氧烷颗粒的制造方法，其包括通过在聚合溶剂和分散在聚合溶剂中的催化剂的聚合溶液中聚合烯化氧来形成聚环氧烷颗粒的步骤。 催化剂的平均粒径大于25μm。

公开(公告)号：US20140120349A1

公开(公告)日：2014-05-01

申请号：US14123340

申请日：2012-05-21

Applicant: Makoto Kato ,  Toru Ido ,  Shizuka Hachiken

Inventor： Makoto Kato ,  Toru Ido ,  Shizuka Hachiken

IPC: C08G65/12 ,  C08G65/08

CPC classification number: C08G65/08 ,  C08G65/10 ,  C08G65/12 ,  C08G65/266 ,  C08G65/269 ,  Y10T428/2982

Abstract: The present invention relates to a production method of polyalkylene oxide particles including a step of forming the polyalkylene oxide particles by polymerization of an alkylene oxide in a polymerization solution containing a polymerization solvent and a catalyst dispersed in the polymerization solvent. The average particle diameter of the catalyst is more than 25 μm.

Abstract translation: 本发明涉及聚环氧烷颗粒的制造方法，其包括通过在聚合溶剂和分散在聚合溶剂中的催化剂的聚合溶液中聚合烯化氧来形成聚环氧烷颗粒的步骤。 催化剂的平均粒径大于25μm。

公开(公告)号：US07932711B2

公开(公告)日：2011-04-26

申请号：US11963089

申请日：2007-12-21

Applicant: Soichiro Ishizuka ,  Toru Ido ,  Naoki Furuya ,  Takeshi Anzai

Inventor： Soichiro Ishizuka ,  Toru Ido ,  Naoki Furuya ,  Takeshi Anzai

IPC: G05F3/16

CPC classification number: G05F1/56

Abstract: A voltage supply circuit and a circuit device can reduce the noise in the output of the circuit when the power to the circuit is turned on and off and can shorten the time required to start or stop the operation of the circuit. When the supply of power to signal processing part 10 is started or stopped, reference voltage Vref supplied to signal processing part 10 is varied continuously to reduce the high-frequency noise in the output of signal processing part 10. Also, when the setpoint value of the waveform of reference voltage Vref is generated by digital signal processing in voltage setting part 30, the desired waveform can be generated without being limited by the values of the circuit elements or the circuit configuration. The output noise of signal processing part 10 can be reduced, and the time that reference time Vref varies can be shortened.

Abstract translation: 电压供应电路和电路装置可以在电路的电源接通和断开时减小电路输出的噪声，并且可以缩短启动或停止电路运行所需的时间。 当向信号处理部10的供电开始或停止时，提供给信号处理部10的参考电压Vref连续变化，以降低信号处理部10的输出中的高频噪声。此外，当设定值 参考电压Vref的波形由电压设定部30中的数字信号处理生成，可以不受电路元件的值或电路结构的限制而产生期望的波形。 可以减少信号处理部分10的输出噪声，并且缩短基准时间Vref变化的时间。

公开(公告)号：US07511647B2

公开(公告)日：2009-03-31

申请号：US11697235

申请日：2007-04-05

Applicant: Toru Ido ,  Soichiro Ishizuka

Inventor： Toru Ido ,  Soichiro Ishizuka

IPC: H03M3/00

CPC classification number: H03M1/0668 ,  H03M1/747 ,  H03M3/502

Abstract: The invention provides an improved dynamic element matching (DEM) device. The DEM device performs dynamic element matching processing at a second timing rate different from the first timing rate for the digital input. As an embodiment, the DEM device is composed of encoder 10 and feedback circuit 12. Said encoder 10 has two inputs and one output. Of the two inputs, one receives the digital input as the object for the DEM processing, and the other input receives the output of feedback circuit 12. Then, the digital output of the encoded result is generated. Said feedback circuit 12 has sampling rate converter 120 and loop filter 122 in order to perform DEM processing at a timing rate different from the timing rate for the digital input as the DEM processing object.

Abstract translation: 本发明提供一种改进的动态元件匹配（DEM）装置。 DEM设备以与数字输入的第一定时速率不同的第二定时速率执行动态元素匹配处理。 作为实施例，DEM设备由编码器10和反馈电路12组成。所述编码器10具有两个输入和一个输出。 在两个输入中，一个接收数字输入作为DEM处理的对象，另一个输入接收反馈电路12的输出。然后，生成编码结果的数字输出。 所述反馈电路12具有采样率转换器120和环路滤波器122，以便以与作为DEM处理对象的数字输入的定时速率不同的定时速率执行DEM处理。

公开(公告)号：US20090302942A1

公开(公告)日：2009-12-10

申请号：US12102163

申请日：2008-04-14

Applicant: Toru Ido ,  Soichiro Ishizuka

Inventor： Toru Ido ,  Soichiro Ishizuka

IPC: H03F3/217

CPC classification number: H03F3/217

Abstract: A D-class amplifier that can suppress noise generated when a D-class amplification operation is started/stopped. When a D-class amplification operation is started/stopped, the pulse widths and pulse interval of output signals Pout1, Pout2 are gradually changed, so it is possible to prevent a large variation in the signal fed as a differential signal of output signals Pout1, Pout2 to the load, and it is possible to reduce noise. That is, by gradually changing the pulse interval while keeping the pulse widths of output signals Pout1, Pout2 constant, it is possible to suppress variation in the relatively high frequency component corresponding to the component of the pulse signal. Also, by gradually changing the widths of output signals Pout1, Pout2 while keeping the pulse interval constant, it is possible to suppress variation in the relatively low frequency component corresponding to the average value of the pulse signal.

Abstract translation: 可以抑制D级放大动作开始/停止时产生的噪声的D级放大器。 当D级放大操作开始/停止时，输出信号Pout1，Pout2的脉冲宽度和脉冲间隔逐渐变化，因此可以防止作为输出信号Pout1的差分信号馈送的信号的大的变化， Pout2到负载，可以减少噪音。 也就是说，通过在保持输出信号Pout1，Pout2的脉冲宽度保持恒定的同时逐渐改变脉冲间隔，可以抑制与脉冲信号的分量对应的相对高频分量的变化。 此外，通过在保持脉冲间隔恒定的同时逐渐改变输出信号Pout1，Pout2的宽度，可以抑制与脉冲信号的平均值相对应的相对低频分量的变化。

公开(公告)号：US20070252743A1

公开(公告)日：2007-11-01

申请号：US11697235

申请日：2007-04-05

Applicant: Toru Ido ,  Soichiro Ishizuka

Inventor： Toru Ido ,  Soichiro Ishizuka

IPC: H03M1/12

CPC classification number: H03M1/0668 ,  H03M1/747 ,  H03M3/502

Abstract: The invention provides an improved dynamic element matching (DEM) device. The DEM device performs dynamic element matching processing at a second timing rate different from the first timing rate for the digital input. As an embodiment, the DEM device is composed of encoder 10 and feedback circuit 12. Said encoder 10 has two inputs and one output. Of the two inputs, one receives the digital input as the object for the DEM processing, and the other input receives the output of feedback circuit 12. Then, the digital output of the encoded result is generated. Said feedback circuit 12 has sampling rate converter 120 and loop filter 122 in order to perform DEM processing at a timing rate different from the timing rate for the digital input as the DEM processing object.

Abstract translation: 本发明提供一种改进的动态元件匹配（DEM）装置。 DEM设备以与数字输入的第一定时速率不同的第二定时速率执行动态元素匹配处理。 作为实施例，DEM设备由编码器10和反馈电路12组成。 所述编码器10具有两个输入和一个输出。 在两个输入中，一个接收数字输入作为DEM处理的对象，另一个输入接收反馈电路12的输出。 然后，生成编码结果的数字输出。 所述反馈电路12具有采样率转换器120和环路滤波器122，以便以与作为DEM处理对象的数字输入的定时速率不同的定时速率执行DEM处理。