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    • 2. 发明授权
    • Synchronizing circuit for dubbing apparatus
    • 配音设备同步电路
    • US4792867A
    • 1988-12-20
    • US907968
    • 1986-09-16
    • Yuji Komori
    • Yuji Komori
    • G11B15/02G11B5/86G11B15/00G11B27/024G11B27/10
    • G11B27/10G11B15/00G11B5/86G11B2220/90G11B27/024
    • A synchronizing circuit for a dubbing apparatus which is capable of a dubbing a signal played back from a playback unit to a recording unit in accordance with the operation of a dubbing command key. The synchronizing circuit essentially includes a power source for supplying a driving current, a potential source associated with the dubbing command key for supplying a prescribed potential, first and second devices for setting the playback unit and the recording unit in a playback mode and a recording mode, respectively, first and second circuits for activating the first and second setting device by applying the driving current in response to the reception of the prescribed potential, respectively, and a circuit for delaying the supply of the prescribed potential to one of the first and second activating circuits when the prescribed potential is first applied to the other activating circuit.
    • 一种用于转录装置的同步电路,其能够根据复制命令键的操作将从播放单元播放的信号转录到记录单元。 同步电路基本上包括用于提供驱动电流的电源,与用于提供预定电位的复制命令键相关联的电位源,用于将重放单元和记录单元设置在重放模式和记录模式中的第一和第二装置 分别用于分别响应于接收到规定电位而施加驱动电流来激活第一和第二设定装置的第一和第二电路,以及用于延迟将规定电位提供给第一和第二设备中的一个的电路 当规定的电位首先被施加到另一激活电路时启动电路。
    • 6. 发明授权
    • Recording bias oscillating circuit
    • 记录偏置振荡电路
    • US4590525A
    • 1986-05-20
    • US465632
    • 1983-02-10
    • Yuji Komori
    • Yuji Komori
    • G11B5/03G11B5/02
    • G11B5/03
    • A recording bias oscillating circuit for use in apparatus of the type having at least two independent tape recorder sections. The circuit is provided with at least two recording heads respectively corresponding to the tape recorder sections for recording signals on tapes. The recording heads are supplied with bias signals from independent bias oscillators. The bias oscillators are connected to each other through a coupling device for synchronizing the frequencies of the bias oscillators thereby preventing beat noises caused by a frequency difference between recording bias oscillating signals.
    • 一种用于具有至少两个独立磁带记录器部分的类型的装置中的记录偏置振荡电路。 该电路设置有分别对应于磁带记录器部分的至少两个记录头,用于在磁带上记录信号。 记录头被提供有来自独立偏置振荡器的偏置信号。 偏置振荡器通过耦合装置彼此连接,用于使偏置振荡器的频率同步,从而防止由记录偏置振荡信号之间的频率差引起的节拍噪声。
    • 8. 发明授权
    • Temperature-compensated amplifier circuit
    • 温度补偿放大电路
    • US4238738A
    • 1980-12-09
    • US914293
    • 1978-06-09
    • Yuji Komori
    • Yuji Komori
    • H03F1/30H03F3/45
    • H03F1/302H03F3/45502H03F2203/45456H03F2203/45476H03F2203/45496H03F2203/45508H03F2203/45594H03F2203/45702
    • A temperature-compensated amplifier circuit including an amplifier section having first and second transistors which are connected at their collectors to a power source terminal through first and second resistors, and having d.c. biased bases coupled to signal source terminals; a current source including a third transistor having a collector coupled with the emitters of the first and second transistors and a grounded emitter; a fourth transistor having an emitter coupled with the power source terminal through a third resistor; a fifth transistor connected at the emitter to the power source terminal and at the base to the base of the fourth transistor; a sixth transistor having both base and collector commonly coupled to the collector of the fourth transistor and grounded at the emitter; and a seventh transistor connected at the collector to the base and the collector of the fifth transistor, at the base to the bases of the third and sixth transistors and grounded at the emitter. The emitters of the sixth and seventh transistors are formed so as to have a predetermined area ratio thereby controlling the current in the forth and fifth transistors. The first to third resistors are formed to have substantially equal temperature characteristics.
    • 一种温度补偿放大器电路,包括具有第一和第二晶体管的放大器部分,第一和第二晶体管通过第一和第二电阻器在其集电极处连接到电源端子,并具有直流电。 耦合到信号源端子的偏置基极; 电流源,包括具有与第一和第二晶体管的发射极耦合的集电极的第三晶体管和接地发射极; 具有通过第三电阻器与所述电源端子耦合的发射极的第四晶体管; 第五晶体管,其在发射极处连接到电源端子,并且在基极连接到第四晶体管的基极; 第六晶体管具有共同耦合到第四晶体管的集电极的基极和集电极,并在发射极处接地; 以及在集电极处连接到第五晶体管的基极和集电极的第七晶体管,在第三和第六晶体管的基极的基极处,并在发射极处接地。 第六晶体管和第七晶体管的发射极形成为具有预定面积比,从而控制第四和第五晶体管中的电流。 第一至第三电阻器形成为具有基本相等的温度特性。