公开(公告)号：US4500932A

公开(公告)日：1985-02-19

申请号：US384602

申请日：1982-06-03

申请人： Tetsuo Sato ,  Yasuo Kominami

发明人： Tetsuo Sato ,  Yasuo Kominami

IPC分类号： G11B5/035 ,  G11B5/45 ,  G11B5/02

CPC分类号： G11B5/035

摘要： A signal processing circuit which can be used, for example, as a playback equalizer is formed in a semiconductor integrated circuit with a main path and a side path arrayed between the input terminal and the output terminal of the integrated circuit. The signals at the ends of the main and side paths are added together to obtain the output signal for the signal processor. A filter in the main path determines its frequency characteristics. On the other hand, a variable gain control means having substantially flat frequency characteristics is inserted in the side path and its gain can be changed in response to control data to control the output signal of the signal processor.

摘要翻译： 可以用作例如重放均衡器的信号处理电路形成在具有排列在集成电路的输入端子和输出端子之间的主路径和侧向通道的半导体集成电路中。 将主路和侧路径两端的信号相加在一起以获得信号处理器的输出信号。 主路径中的滤波器决定其频率特性。 另一方面，具有基本上平坦的频率特性的可变增益控制装置插入在侧路径中，并且可以响应于控制数据改变其增益，以控制信号处理器的输出信号。

公开(公告)号：US4354209A

公开(公告)日：1982-10-12

申请号：US231369

申请日：1981-02-03

申请人： Tetsuo Sato ,  Yasuo Kominami

发明人： Tetsuo Sato ,  Yasuo Kominami

IPC分类号： G11B20/02 ,  G11B23/00 ,  H03G9/02 ,  G11B15/12 ,  G11B5/02

CPC分类号： H03G9/025 ,  G11B23/0007

摘要： A recording/playing circuit includes a noise reduction circuit, a switching circuit and a control circuit. The noise reduction circuit includes a pre-amplifier, a combining network, an inverter circuit and a side chain. The switching circuit has first, second and third input positions and an output terminal. The first input position is coupled to the output of the pre-amplifier, the second input position is coupled to the output of the inverter circuit, and the output terminal is coupled to the side chain. The third input position is connected to a muting circuit. The control circuit controls the switching circuit so that one of the electric signals applied to the first, second and third input positions of the switching circuit may be selectively transmitted to the output terminal of the switching circuit.

摘要翻译： 记录/播放电路包括噪声降低电路，开关电路和控制电路。 降噪电路包括前置放大器，组合网络，逆变器电路和侧链。 开关电路具有第一，第二和第三输入位置和输出端子。 第一输入位置耦合到前置放大器的输出，第二输入位置耦合到反相器电路的输出，输出端耦合到侧链。 第三输入位置连接到静音电路。 控制电路控制开关电路，使得施加到开关电路的第一，第二和第三输入位置的电信号中的一个可以选择性地发送到开关电路的输出端子。

公开(公告)号：US4313145A

公开(公告)日：1982-01-26

申请号：US83657

申请日：1979-10-11

申请人： Masanori Ienaka ,  Masahiro Yamamura ,  Kazuo Watanabe ,  Yasuo Kominami

发明人： Masanori Ienaka ,  Masahiro Yamamura ,  Kazuo Watanabe ,  Yasuo Kominami

IPC分类号： G01R19/165 ,  H02H3/50 ,  H02H7/20 ,  H03F1/42 ,  H03F1/52

CPC分类号： H03F1/52 ,  G01R19/165 ,  H02H3/50

摘要： An output from an OCL type power output circuit is applied to a loudspeaker load through a switching means such as a relay. A first detector circuit and a second detector circuit detect a first operating status (e.g., output d.c. level) and a second operating status (e.g., output current level of an output transistor) of the OCL type power output circuit, respectively. The detection output signals of the first detector circuit and the second detector circuit are respectively applied to a first detecting transistor and a second detecting transistor. In the normal operation status of the OCL type power output circuit, the first detecting transistor and the second detecting transistor are respectively biased into "on" states by the first detector circuit and the second detector circuit so as to permit predetermined currents to flow. When the first and second detecting transistors are in their "on" states they control a driving transistor into an "on" state. Then, the switching means, such as a relay, is controlled into a closed state. In the abnormal operation status of the OCL type power output circuit, the first detector circuit or the second detector circuit controls the first detecting transistor or the second detecting transistor into an "off" state, so that the switching means, such as a relay, is controlled into an open state.

摘要翻译： OCL型电力输出电路的输出通过诸如继电器的开关装置施加到扬声器负载。 第一检测器电路和第二检测器电路分别检测OCL型功率输出电路的第一操作状态（例如，输出直流电平）和第二操作状态（例如输出晶体管的输出电流电平）。 第一检测器电路和第二检测器电路的检测输出信号分别施加到第一检测晶体管和第二检测晶体管。 在OCL型功率输出电路的正常工作状态下，第一检测电路和第二检测晶体管分别由第一检测电路和第二检测电路偏置成“接通”状态，以允许预定电流流动。 当第一和第二检测晶体管处于“导通”状态时，它们将驱动晶体管控制为“导通”状态。 然后，诸如继电器之类的开关装置被控制成闭合状态。 在OCL型电力输出电路的异常运行状态下，第一检测电路或第二检测电路将第一检测晶体管或第二检测晶体管控制为“关”状态，使得诸如继电器之类的开关装置， 被控制成打开状态。

公开(公告)号：US4292549A

公开(公告)日：1981-09-29

申请号：US3120

申请日：1979-01-12

申请人： Takeshi Wada ,  Masanori Ienaka ,  Yasuo Kominami ,  Yukihiko Miyamoto ,  Tsuneo Yamada

发明人： Takeshi Wada ,  Masanori Ienaka ,  Yasuo Kominami ,  Yukihiko Miyamoto ,  Tsuneo Yamada

IPC分类号： H03K3/013 ,  H03D3/04 ,  H03K3/02 ,  H03K3/023 ,  H03K3/0232 ,  H03K5/04 ,  H03K9/06 ,  H03K5/08 ,  H03K3/033

CPC分类号： H03D3/04 ,  H03K3/023 ,  H03K5/04 ,  H03K9/06

摘要： A monostable multivibrator circuit including a time constant circuit which includes a capacitor, an amplifier circuit which receives an output signal of the time constant circuit, and a positive feedback circuit which is connected between an output end of the amplifier circuit and an input end of the time constant circuit, characterized in that a trigger circuit is incorporated in a part of a circuit loop which is constructed of the time constant circuit, the amplifier circuit and the positive feedback circuit, the trigger circuit comprising an emitter-follower transistor which receives a feedback signal, another emitter-follower transistor which receives a trigger signal and whose emitter is connected to an emitter of the first-mentioned emitter-follower transistor in common, and a constant-current circuit which supplies a constant current to the emitters connected in common. Thus, the monostable multivibrator circuit can provide a predetermined pulse signal without any interference attributable to a trigger input circuit.

摘要翻译： 一种单稳态多谐振荡器电路，包括时间常数电路，其包括电容器，接收时间常数电路的输出信号的放大器电路和连接在放大器电路的输出端和放大器电路的输入端之间的正反馈电路 时间常数电路，其特征在于，触发电路被并入由时间常数电路，放大器电路和正反馈电路构成的电路回路的一部分中，触发电路包括发射极跟随器晶体管，其接收反馈 信号，另一发射极跟随器晶体管，其接收触发信号并且其发射极共同连接到所述射极跟随器晶体管的发射极;以及恒定电流电路，其向共同连接的发射极提供恒定电流。 因此，单稳态多谐振荡器电路可以提供预定的脉冲信号，而不受归因于触发输入电路的任何干扰。

公开(公告)号：US4276442A

公开(公告)日：1981-06-30

申请号：US25039

申请日：1979-03-29

申请人： Masanori Ienaka ,  Masahiro Yamamura ,  Kazuo Watanabe ,  Yasuo Kominami

发明人： Masanori Ienaka ,  Masahiro Yamamura ,  Kazuo Watanabe ,  Yasuo Kominami

IPC分类号： H03F1/52 ,  H04R3/00 ,  H02H3/14 ,  H02H7/20

CPC分类号： H04R3/007 ,  H03F1/52

摘要： The output derived from an electric circuit such as an OCL type power amplifier circuit is delivered to a load such as a speaker, through a switching means such as a relay. When the operation of the electric circuit has come out of a predetermined range of operation, the switching means is operated to break the connection between the electric circuit and the load. A detection circuit for detecting the operation of the electric circuit includes a detecting transistor constructed in a semiconductor integrated circuit. The detecting transistor is connected at its base to the input terminal for external connection of the semiconductor integrated circuit, so as to receive a signal representative of the operation state of the electric circuit. The detecting transistor is so biased as to allow a predetermined electric current to flow therethrough, when the electric circuit is operating within the predetermined range of operation. However, in case of a breakdown of the detecting transistor, or when the operation of the electric circuit has come out of the predetermined range of operation, the current flowing through the detecting transistor is changed from the predetermined level. This change is transmitted to a driving transistor which is adapted to break the switching means such as a relay.

摘要翻译： 从诸如OCL型功率放大器电路的电路得到的输出通过诸如继电器的开关装置传送到诸如扬声器的负载。 当电路的操作已经超出预定的操作范围时，切换装置被操作以断开电路和负载之间的连接。 用于检测电路的操作的检测电路包括构造在半导体集成电路中的检测晶体管。 检测晶体管的基极连接到用于半导体集成电路的外部连接的输入端子，以便接收表示电路的工作状态的信号。 当电路在预定操作范围内运行时，检测晶体管被偏压以允许预定的电流流过。 然而，在检测晶体管的击穿的情况下，或者当电路的操作已经超出预定操作范围时，流过检测晶体管的电流从预定电平变化。 该变化被传送到适于断开诸如继电器的开关装置的驱动晶体管。

公开(公告)号：US4264873A

公开(公告)日：1981-04-28

申请号：US56422

申请日：1979-07-10

申请人： Yasuo Kominami ,  Masahiro Yamamura ,  Katsuji Mizumoto ,  Toshihide Hanada

发明人： Yasuo Kominami ,  Masahiro Yamamura ,  Katsuji Mizumoto ,  Toshihide Hanada

IPC分类号： H03F1/30 ,  H03F3/45 ,  H03F3/04

CPC分类号： H03F3/45085 ,  H03F3/45 ,  H03F2203/45388 ,  H03F2203/45462 ,  H03F2203/45496 ,  H03F2203/45508 ,  H03F2203/45611 ,  H03F2203/45612 ,  H03F2203/45652 ,  H03F2203/45656

摘要： A differential amplification is disclosed which comprises differential paired transistors. The direct bias current flowing in the differential paired transistors is determined by a constant current flowing from a first constant current circuit connected to the emitters of the differential paired transistors. The collector current of one of the differential paired transistors is caused to flow as an input current in a high-precision current mirror circuit. The current value of the constant current flowing in the first constant current circuit is set at 2Io. Since a direct base current Ib flows in the differential paired transistors, the current value of the collector current of one of the differential paired transistors is (Io-Ib). Accordingly, the high-precision current mirror circuit generates an output current of a current value of (Io-Ib) at the output terminal thereof. The differential amplification circuit includes a second constant current circuit having a current value Io corresponding to 1/2 of the current value of the constant current flowing in the first constant current circuit. A bias transistor is connected between the high-precision current mirror circuit and the second constant current circuit, and the direct base current Ib flows in this bias transistor. Accordingly, in the equilibrium state between the differential paired transistors, the output current appearing at the output terminal of the high precision current mirror circuit becomes zero, and the offset output current can be eliminated or moderated.

摘要翻译： 公开了包括差分成对晶体管的差分放大器。 在差分成对晶体管中流动的直流偏置电流由连接到差分成对晶体管的发射极的第一恒定电流电流的恒定电流确定。 导致差分成对晶体管之一的集电极电流作为高精度电流镜电路中的输入电流流动。 在第一恒流电路中流动的恒定电流的电流值设定为2Io。 由于直流基极电流Ib流入差分成对晶体管，因此差分成对晶体管之一的集电极电流的电流值为（Io-Ib）。 因此，高精度电流镜电路在其输出端产生电流值（Io-Ib）的输出电流。 差分放大电路包括具有对应于在第一恒流电路中流动的恒定电流的电流值的1/2的电流值I 1的第二恒流电路。 偏置晶体管连接在高精度电流镜电路和第二恒流电路之间，直流基极电流Ib流入该偏置晶体管。 因此，在差分成对晶体管之间的平衡状态下，出现在高精度电流镜电路的输出端的输出电流变为零，并且可以消除或缓和偏移输出电流。