公开(公告)号：US4890170A

公开(公告)日：1989-12-26

申请号：US234863

申请日：1988-08-22

申请人： Haruyuki Inohana ,  Saburo Takaoka ,  Hideaki Takada

发明人： Haruyuki Inohana ,  Saburo Takaoka ,  Hideaki Takada

IPC分类号： H03H11/04 ,  G11B5/035 ,  G11B20/10 ,  H04B3/04

CPC分类号： G11B5/035 ,  G11B20/10009

摘要： In a waveform equalization circuit, a digital signal is applied through a first network having a transfer function defined by four angular frequencies to one of the inversion and non-inversion input terminals of an amplifier and through a second network having a transfer function made up of a constant to the other input terminal, so that the digital signal subjected to waveform equalization is provided at the output terminal, whereby according to the transfer characteristic of the recording or reproducing system, the most suitable waveform equalization characteristic can be obtained with ease.

摘要翻译： 在波形均衡电路中，数字信号通过具有由四个角频率定义的传递函数的第一网络施加到放大器的反相和非反相输入端之一，并通过具有由 使得在输出端提供经受波形均衡的数字信号，由此根据记录或再现系统的传送特性，可以容易地获得最合适的波形均衡特性。

公开(公告)号：US06201718B1

公开(公告)日：2001-03-13

申请号：US09450739

申请日：1999-11-30

申请人： Norio Yoshizumi ,  Haruyuki Inohana ,  Akio Ozawa

发明人： Norio Yoshizumi ,  Haruyuki Inohana ,  Akio Ozawa

IPC分类号： H02M318

CPC分类号： H02M3/07

摘要： A step-up power supply circuit is provided with a rectifying diode D1 to which a predetermined voltage Vcc is applied from a power supply 16, a capacitor CD1 connected in series with the rectifying diode D1, a rectifying diode D2 connected to a joint point between the rectifying diode D1 and the capacitor CD1,a capacitor CD2 connected in series with the rectifying diode D2. A trapezoidal wave signal SD produced by a triangular wave generating circuit 7, an amplifier 8, and a drive unit 9 is applied to the capacitor CD1 so as to turn ON/OFF the rectifying diodes D1 and D2. As a result, a voltage substantially equal to a voltage Vcc is produced across the capacitor CD1,and a step-up voltage HVcc approximately two times higher than the voltage Vcc is produced across the capacitor CD2. Since the rectifying diodes D1 and D2 are turned ON/OFF in response to the trapezoidal signal SD having the small RF component, the occurrence of the switching noise from the rectifying diodes D1 and D2 can be suppressed.

摘要翻译： 升压电源电路设置有从电源16施加了预定电压Vcc的整流二极管D1，与整流二极管D1串联连接的电容器CD1，与二极管D1连接的整流二极管D2， 整流二极管D1和电容器CD1，与整流二极管D2串联连接的电容器CD2。 由三角波发生电路7，放大器8和驱动单元9产生的梯形波信号SD被施加到电容器CD1，以使整流二极管D1和D2导通/截止。 结果，在电容器CD1两端产生基本上等于电压Vcc的电压，并且跨越电容器CD2产生大于电压Vcc的两倍的升压电压HVcc。 由于整流二极管D1和D2响应于具有小RF分量的梯形信号SD而导通/截止，可以抑制来自整流二极管D1和D2的开关噪声的发生。

公开(公告)号：US07092533B1

公开(公告)日：2006-08-15

申请号：US09453525

申请日：1999-12-03

申请人： Tatsuzo Hasegawa ,  Haruyuki Inohana ,  Akio Ozawa

发明人： Tatsuzo Hasegawa ,  Haruyuki Inohana ,  Akio Ozawa

IPC分类号： H04B15/00

CPC分类号： H03F1/52 ,  H03G3/301 ,  H04R3/007

摘要： A BTL amplifying apparatus has two power amplifiers in an BTL configuration for amplifying a speaker. It includes detection means for detecting a differential voltage between outputs from the two power amplifiers while an input signal to be supplied to the power amplifiers is muted, and decision means for deciding whether or not the differential voltage is larger than a prescribed voltage. Such a configuration prevent the speaker from being damaged.

摘要翻译： BTL放大装置具有用于放大扬声器的BTL配置中的两个功率放大器。 它包括用于检测来自两个功率放大器的输出之间的差分电压的检测装置，同时提供给功率放大器的输入信号被静音，以及用于判定差分电压是否大于规定电压的判定装置。 这样的结构防止扬声器被损坏。

公开(公告)号：US06424210B1

公开(公告)日：2002-07-23

申请号：US09985438

申请日：2001-11-02

申请人： Yukiya Iigai ,  Haruyuki Inohana ,  Akio Ozawa ,  Kazuyuki Kudo

发明人： Yukiya Iigai ,  Haruyuki Inohana ,  Akio Ozawa ,  Kazuyuki Kudo

IPC分类号： G06G712

CPC分类号： H03F3/456 ,  H03F3/45085 ,  H03F3/45089 ,  H03F2203/45308 ,  H03F2203/45361 ,  H03F2203/45392 ,  H03F2203/45574 ,  H03F2203/45682 ,  H03F2203/45702

摘要： In an isolator circuit, a first differential pair circuit compares voltages of two input signals with each other, and, in accordance with the ratio of the voltages, currents flow through two resistors respectively connected to two output terminals of the first differential pair circuit. A current comparison circuit compares the currents respectively flowing through the two resistors, and outputs a voltage corresponding to a result of the comparison. A second differential pair circuit compares the voltage output from the current comparison circuit with a reference voltage, and a negative feedback is conducted so that the currents flowing through the two resistors are equal to each other. Unlike the conventional art, an isolator circuit can be configured without disposing buffer circuits.

摘要翻译： 在隔离器电路中，第一差分对电路将两个输入信号的电压相互比较，并且根据电压的比率，流过分别连接到第一差分对电路的两个输出端的两个电阻器的电流。 电流比较电路比较分别流过两个电阻器的电流，并输出与比较结果相对应的电压。 第二差分对电路将来自电流比较电路的电压与参考电压进行比较，并且进行负反馈，使得流过两个电阻器的电流彼此相等。 与传统技术不同，可以配置隔离电路而不设置缓冲器电路。

公开(公告)号：US06191962B1

公开(公告)日：2001-02-20

申请号：US09453472

申请日：1999-12-02

申请人： Norio Yoshizumi ,  Haruyuki Inohana ,  Akio Ozawa

发明人： Norio Yoshizumi ,  Haruyuki Inohana ,  Akio Ozawa

IPC分类号： H02M318

CPC分类号： H02M3/07 ,  H02M2001/0045

摘要： A step-up power supply circuit is provided with a diode D1 to which a predetermined voltage Vcc is applied from a power supply 16, a capacitor CD1 connected to the diode D1, a diode D2 connected to a joint point between the diode D1 and the capacitor CD1,and also a capacitor CD2 connected to the diode D2. A trapezoidal wave signal SD produced by a triangular wave generating circuit 7, an amplifier 8, and a drive unit 9 is applied to the capacitor CD1 so as to turn ON/OFF the diodes D1 and D2. As a result, a step-up voltage HVcc approximately two times higher than the voltage Vcc is produced across the capacitor CD2. Amplifiers AM0 to AMn are operated under the step-up voltage HVcc produced from the step-up power supply circuit with employment of this arrangement, and the step-up voltage HVcc is judged by a judging circuit 17. As a result of this judgement, amplification factors of amplifiers AM0 to AMn are automatically and variably adjusted.

摘要翻译： 升压电源电路设置有从电源16施加预定电压Vcc的二极管D1，连接到二极管D1的电容器CD1，连接到二极管D1和二极管D1之间的接合点的二极管D2 电容器CD1，以及连接到二极管D2的电容器CD2。 由三角波产生电路7，放大器8和驱动单元9产生的梯形波信号SD被施加到电容器CD1，以使二极管D1和D2导通/截止。 结果，在电容器CD2两端产生比电压Vcc高大约两倍的升压电压HVcc。 放大器AM0至AMn在采用这种配置的升压电源电路产生的升压电压HVcc下工作，并且由判断电路17判断升压电压HVcc。作为该判断的结果， 放大器AM0至AMn的放大系数自动和可变地调整。

公开(公告)号：US6005785A

公开(公告)日：1999-12-21

申请号：US65610

申请日：1998-04-24

申请人： Kazuyuki Kudou ,  Tatsuzou Hasegawa ,  Haruyuki Inohana

发明人： Kazuyuki Kudou ,  Tatsuzou Hasegawa ,  Haruyuki Inohana

IPC分类号： H04R3/00 ,  H02H7/12 ,  H02M1/00 ,  H02M1/08 ,  H02M3/28 ,  H02H3/08 ,  G05F5/00

CPC分类号： H02M1/32 ,  H02H7/1213

摘要： A power supply circuit has: a power supply filter including a coil which is inserted in series into an input line; a DC--DC converter which is connected to an output of the power supply filter and which converts an input voltage into an arbitrary output voltage; a detecting section which detects a potential difference between ends of the coil; and a control section which controls the output voltage of the DC--DC converter based on the detected potential difference.

摘要翻译： 电源电路具有：电源滤波器，包括串联插入输入线的线圈; DC-DC转换器，连接到电源滤波器的输出端，并将输入电压转换为任意的输出电压; 检测部，其检测线圈的端部之间的电位差; 以及控制部，其基于检测到的电位差来控制DC-DC转换器的输出电压。

公开(公告)号：US06587566B2

公开(公告)日：2003-07-01

申请号：US09984556

申请日：2001-10-30

申请人： Yukiya Iigai ,  Haruyuki Inohana ,  Akio Ozawa ,  Kazuyuki Kudo

发明人： Yukiya Iigai ,  Haruyuki Inohana ,  Akio Ozawa ,  Kazuyuki Kudo

IPC分类号： H03G500

CPC分类号： H04S7/308 ,  H04R2499/13 ,  H04S7/307

摘要： A sound field forming circuit includes a first switch portion which switchingly supplies one of an audio signals from a sound source and a second tone control circuit which variably adjusts a characteristic of a second predetermined frequency band, to a first tone control circuit which variably adjusts a characteristic of a first predetermined frequency band; a second switch portion which switchingly supplies one of the audio signals from the sound source and the first tone control circuit, to the second tone control circuit; a third switch portion which switchingly supplies one of the audio signals from the first tone control circuit and the second tone control circuit, to a front channel; and a fourth switch portion which switchingly supplies one of the audio signals from the first tone control circuit and the second tone control circuit, to a rear channel.

公开(公告)号：US5184086A

公开(公告)日：1993-02-02

申请号：US789888

申请日：1991-11-12

申请人： Haruyuki Inohana ,  Shintaro Gomi

发明人： Haruyuki Inohana ,  Shintaro Gomi

IPC分类号： H03F1/32 ,  H03F3/45

CPC分类号： H03F3/45197 ,  H03F1/3211 ,  H03F3/45103 ,  H03F2203/45251 ,  H03F2203/45471

摘要： A differential amplifier comprises: first and second transistors the emitters of which are connected to each other through a resistance element; a third transistor to the emitter of which a current equal to the collector current of the first transistor is applied; and a fourth transistor to the emitter of which a current equal to the collector current of the second transistor is applied. Signals provided at the emitters of the third and fourth transistors, after being level-shifted, are supplied to the bases of the second and first transistors, respectively. Thereby, a differential amplifier which is linear in transfer characteristic and large in input dynamic range is obtained.

摘要翻译： 差分放大器包括：第一和第二晶体管，其发射极通过电阻元件相互连接; 施加与等于第一晶体管的集电极电流的电流的发射极的第三晶体管; 并且向发射极施加与第二晶体管的集电极电流相等的电流的第四晶体管。 在第三和第四晶体管的发射极上提供的电平被移位后的信号分别被提供给第二晶体管和第一晶体管的基极。 由此，获得传递特性线性且输入动态范围大的差分放大器。

公开(公告)号：US5179352A

公开(公告)日：1993-01-12

申请号：US791167

申请日：1991-11-13

申请人： Haruyuki Inohana

发明人： Haruyuki Inohana

IPC分类号： H03F1/32 ,  H03F3/18 ,  H03F3/30

CPC分类号： H03F1/3217

摘要： An amplifier device comprises an amplifier circuit, a differential amplifier for amplifying the difference between an input and an output of the amplifier circuit with an amplification degree which is substantially equal to one, and an addition circuit for adding an input signal to an output signal of the differential amplifier circuit and applying the result of addition to the input terminal of the amplifier circuit. Thereby, the distortion of the amplifier circuit is eliminated, and the input signal and the output signal coincide with each other. Hence, by applying the technical concept of the invention to an amplifier with a feedback loop, the distortion factor can be reduced without the increasing of the amount of feedback.

摘要翻译： 一种放大器装置，包括：放大器电路;差分放大器，用于以基本上等于1的放大度放大放大器电路的输入和输出之间的差;以及加法电路，用于将输入信号与 差分放大器电路，并将加法结果应用于放大器电路的输入端。 由此，消除了放大器电路的失真，并且输入信号和输出信号彼此一致。 因此，通过将本发明的技术概念应用于具有反馈回路的放大器，可以减少失真因子而不增加反馈量。