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公开(公告)号：US4420725A
公开(公告)日：1983-12-13
申请号：US189276
申请日：1980-09-22
申请人： Susumu Sueyoshi , Kikuo Ishikawa
发明人： Susumu Sueyoshi , Kikuo Ishikawa
摘要： A low-noise wide-band bipolar transistor amplifier in which distortion caused by non-linear transistor operating characteristics is substantially eliminated. An input signal is coupled to the base of a first transistor connected in an emitter follower configuration with the signal formed at the emitter of the first transistor coupled to the base of a second transistor. Currents are supplied to the first and second transistors by a current mirror circuit in such a manner that a ratio of the current supplied to the first transistor to the current supplied to the second transistor is made constant. An output signal is produced in response to current variations in a transistor of the current mirror circuit which supplies current to the second transistor.
摘要翻译： 基本上消除了由非线性晶体管工作特性引起的失真的低噪声宽带双极晶体管放大器。 输入信号耦合到以射极跟随器配置连接的第一晶体管的基极，其中形成在第一晶体管的发射极处的信号耦合到第二晶体管的基极。 通过电流镜电路将电流提供给第一和第二晶体管，使得提供给第一晶体管的电流与提供给第二晶体管的电流的比率保持恒定。 响应于向第二晶体管提供电流的电流镜电路的晶体管中的电流变化而产生输出信号。
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公开(公告)号：US4356454A
公开(公告)日：1982-10-26
申请号：US187892
申请日：1980-09-17
申请人： Susumu Sueyoshi , Kikuo Ishikawa
发明人： Susumu Sueyoshi , Kikuo Ishikawa
摘要： An equalizer amplifier in which non-linear distortion is substantially eliminated. An input signal is applied to the base of a first transistor the output of which is applied to the base of a second transistor of the opposite conductivity type to the first transistor. Currents are supplied to the first and second transistors in a constant ration. The output from the circuit is provided in response to current flowing in one of the first and second transistors. At least one of the amplifier gain determining elements has a reactance component which varies depending on frequency.
摘要翻译： 基本上消除了非线性失真的均衡器放大器。 输入信号被施加到第一晶体管的基极，其第一晶体管的基极施加到与第一晶体管相反的导电类型的第二晶体管的基极。 电流以恒定的比例提供给第一和第二晶体管。 响应于在第一和第二晶体管之一流动的电流来提供来自电路的输出。 放大器增益确定元件中的至少一个具有根据频率而变化的电抗分量。
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3.发明授权Sleep timer for audio/visual apparatus and method of sleep timer operation 失效音频/视频设备的睡眠定时器和睡眠定时器操作的方法
公开(公告)号：US5170159A
公开(公告)日：1992-12-08
申请号：US636473
申请日：1990-12-31
申请人： Yoshihiro Kawabata , Takehiko Kuroiwa , Kazuya Tsukada , Shinji Sugiyama , Naoyuki Arai , Kikuo Ishikawa
发明人： Yoshihiro Kawabata , Takehiko Kuroiwa , Kazuya Tsukada , Shinji Sugiyama , Naoyuki Arai , Kikuo Ishikawa
CPC分类号： G04G15/00 , G04G13/02 , G04G15/003
摘要： A sleeper timer for the source equipment of audio/visual apparatuses such as a cassette tape deck, CD player, AM/FM tuner, and video disk play incorporates an auto sleep mode where the source equipment are turned off as soon as the source equipment completes its operation, and a conventional sleep timer mode where the source equipment are turned off when a predetermined length of time of a timer expires.
摘要翻译： 诸如盒式磁带机，CD播放机，AM / FM调谐器和视频盘播放器的音频/视频设备的源设备的睡眠定时器包括自动睡眠模式，其中源设备一旦源设备完成就关闭 其操作以及常规的休眠定时器模式，其中当定时器的预定时间长度期满时，源设备被关闭。
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公开(公告)号：US4540951A
公开(公告)日：1985-09-10
申请号：US523258
申请日：1983-10-27
申请人： Akio Ozawa , Susumu Sueyoshi , Keishi Sato , Kikuo Ishikawa , Kiyomi Yatsuhashi , Satoshi Ishii , Masamichi Yumino
发明人： Akio Ozawa , Susumu Sueyoshi , Keishi Sato , Kikuo Ishikawa , Kiyomi Yatsuhashi , Satoshi Ishii , Masamichi Yumino
CPC分类号： H03F3/26 , H03F1/32 , H03F1/3217 , H03F1/34 , H03F3/30 , H03F3/3076
摘要： A push-pull amplifer circuit using bipolar transistors in which non-linear distortion caused by the base-emitter voltages of the amplifying transistors of the circuit is eliminated without the use of negative AC feedback and in which variations in a DC output level at the output terminal of the amplifier are detected and fed back to the input side of the amplifier whereby the stability of the circuit at very low frequencies is remarkably improved. A first amplifier stage includes a first transistor having a base to which an input signal is applied and a second transistor the base of which is coupled to an output of the first transistor with the second transistor being of the opposite conductivity type of the first transistor. A current mirror circuit supplies currents to the first and second transistors with the currents thus supplied having a constant ratio. A second amplifying stage is provided having the same construction. A load is coupled to be driven by the current flowing through the first transistor in the first amplifying stage and by the corresponding transistor in the second amplifying stage. Variations in the output of the circuit are detected to provide a DC feedback voltage which is coupled back to emitter circuits in the input stages of the amplifier.
摘要翻译： 使用双极晶体管的推挽放大电路，其中消除了由电路的放大晶体管的基极 - 发射极电压引起的非线性失真，而不使用负的AC反馈，并且其中输出端的DC输出电平的变化 检测放大器的端子并将其反馈到放大器的输入侧，从而显着提高电路在非常低频率下的稳定性。 第一放大器级包括第一晶体管，其具有施加输入信号的基极和第二晶体管，第二晶体管的基极耦合到第一晶体管的输出，第二晶体管具有与第一晶体管相反的导电类型。 电流镜电路以这样提供的具有恒定比例的电流向第一和第二晶体管提供电流。 提供具有相同结构的第二放大级。 负载被耦合以由流过第一放大级中的第一晶体管的电流和第二放大级中的相应晶体管驱动。 检测电路输出的变化以提供DC反馈电压，该反馈电压被耦合回到放大器的输入级中的发射极电路。
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公开(公告)号：US4433305A
公开(公告)日：1984-02-21
申请号：US188792
申请日：1980-09-19
申请人： Akio Ozawa , Susumu Sueyoshi , Keishi Sato , Kikuo Ishikawa , Kiyomi Yatsuhashi , Satoshi Ishii , Masamichi Yumino
发明人： Akio Ozawa , Susumu Sueyoshi , Keishi Sato , Kikuo Ishikawa , Kiyomi Yatsuhashi , Satoshi Ishii , Masamichi Yumino
CPC分类号： H03F3/26 , H03F1/32 , H03F1/3217 , H03F1/34 , H03F3/30 , H03F3/3076
摘要： A push-pull amplifier circuit using bipolar transistors in which non-linear distortion caused by the base-emitter voltages of the amplifying transistors of the circuit is eliminated without the use of negative AC feedback and in which variations in a DC output level at the output terminal of the amplifier are detected and fed back to the input side of the amplifier whereby the stability of the circuit at very low frequencies is remarkably improved. A first amplifier stage includes a first transistor having a base to which an input signal is applied and a second transistor the base of which is coupled to an output of the first transistor with the second transistor being of the opposite conductivity type to the first transistor. A current mirror circuit supplies currents to the first and second transistors with the currents thus supplied having a constant ratio. A second amplifying stage is provided having the same construction. A load is coupled to be driven by the current flowing through the first transistor in the first amplifying stage and by the corresponding transistor in the second amplifying stage. Variations in the output of the circuit are detected to provide a DC feedback voltage which is coupled back to emitter circuits in the input stages of the amplifier.
摘要翻译： 使用双极晶体管的推挽放大器电路，其中消除由电路的放大晶体管的基极 - 发射极电压引起的非线性失真，而不使用负的AC反馈，并且其中输出端的DC输出电平的变化 检测放大器的端子并将其反馈到放大器的输入侧，从而显着提高电路在非常低频率下的稳定性。 第一放大器级包括第一晶体管，其具有施加输入信号的基极和第二晶体管，第二晶体管的基极耦合到第一晶体管的输出，第二晶体管具有与第一晶体管相反的导电类型。 电流镜电路以这样提供的具有恒定比例的电流向第一和第二晶体管提供电流。 提供具有相同结构的第二放大级。 负载被耦合以由流过第一放大级中的第一晶体管的电流和第二放大级中的相应晶体管驱动。 检测电路输出的变化以提供DC反馈电压，该反馈电压被耦合回到放大器的输入级中的发射极电路。
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公开(公告)号：US4691447A
公开(公告)日：1987-09-08
申请号：US760836
申请日：1985-07-31
申请人： Masayuki Nakai , Kikuo Ishikawa , Shiro Okada
发明人： Masayuki Nakai , Kikuo Ishikawa , Shiro Okada
CPC分类号： A23N12/10
摘要： A coffee roasting apparatus is disclosed. The apparatus includes a coffee roasting drum which is operatively connected to a driving mechanism to cause the drum to rotate. The drum comprises a cylindrical element having an upper opening, a bottom opening and a bottom plate placed below the bottom opening to control the opening and closing of the bottom opening. An infrared heater is placed above the upper opening of the drum and an electrical heating element is placed below the drum at a position slightly above the lowermost portion of the drum. Coffee beans which are roasted by the radiation hearing of the infrared heater and the air which passes through the electrical heat element are discharged into a box through a gap defined between the bottom opening of the cylindrical element and the bottom plate.
摘要翻译： 公开了一种咖啡焙烧装置。 该设备包括可操作地连接到驱动机构以使滚筒旋转的咖啡焙烧滚筒。 滚筒包括具有上开口的圆柱形元件，底部开口和放置在底部开口下方的底板，以控制底部开口的打开和关闭。 将红外加热器放置在滚筒的上部开口上方，并且将电加热元件放置在滚筒下方稍微高于滚筒的最下部分的位置。 通过红外加热器的辐射听觉和通过电加热元件的空气烘烤的咖啡豆通过限定在圆柱形元件的底部开口和底板之间的间隙排出到盒中。
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公开(公告)号：US4356455A
公开(公告)日：1982-10-26
申请号：US187891
申请日：1980-09-17
申请人： Akio Ozawa , Susumu Sueyoshi , Keishi Saito , Kikuo Ishikawa , Kiyomi Yatsuhashi , Satoshi Ishii , Masamichi Yumino
发明人： Akio Ozawa , Susumu Sueyoshi , Keishi Saito , Kikuo Ishikawa , Kiyomi Yatsuhashi , Satoshi Ishii , Masamichi Yumino
摘要： An amplifier circuit in which the non-linear distortion of the amplifier transistors caused by non-linear base-emitter input and output characteristics is eliminated without the use of negative feedback. A first transistor and a second transistor of opposite conductivity type are coupled with the output of the first transistor connected to the base of the second transistor and with an input signal applied to the base of the first transistor. Currents are applied to the first and second transistors, such as with the current mirror circuit, in such a manner that the ratio of the currents is a predetermined constant value. Bias voltages are applied to the circuit such that the ratio of the collector-emitter voltage of the first transistor to the collector-emitter voltage of the second transistor is the reciprocal of the predetermined constant value.
摘要翻译： 在不使用负反馈的情况下消除由非线性基极 - 发射极输入和输出特性引起的放大器晶体管的非线性失真的放大器电路。 具有相反导电类型的第一晶体管和第二晶体管与连接到第二晶体管的基极的第一晶体管的输出和施加到第一晶体管的基极的输入信号耦合。 电流通过电流镜电路施加到第一和第二晶体管，使得电流的比例是预定的常数值。 将偏置电压施加到电路，使得第一晶体管的集电极 - 发射极电压与第二晶体管的集电极 - 发射极电压之比为预定常数值的倒数。
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