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1. 发明授权

US4424574A Function presetting circuit for an audio/video recording and reproducing system 失效
标题翻译：用于音频/视频记录和再现系统的功能预设电路
公开(公告)号：US4424574A
公开(公告)日：1984-01-03
申请号：US247264
申请日：1981-03-25
申请人： Takashi Enoki , Hiroaki Nakamura , Fujio Nakashima
发明人： Takashi Enoki , Hiroaki Nakamura , Fujio Nakashima
IPC分类号： G06F1/00 , G06F3/02 , H03J1/06 , H04B1/20 , H04H1/00 , H04H20/47 , H04H40/36 , H04S7/00 , G11B27/36
CPC分类号： H04B1/20 , H03J1/06 , H04H20/47 , H04H40/36
摘要： A function presetting circuit for an audio/video stereophonic playback system for presetting a function and controlling operations by a microcomputer comprises a reset circuit for providing a reset signal to the microcomputer at a time of power-on, a delay circuit for receiving the reset signal and delaying the reset signal a predetermined time period, and a presettable function presetting switch connected between the delay circuit and a key input terminal of the microcomputer.
摘要翻译：一种用于预设功能和由微型计算机控制操作的音频/视频立体声回放系统的功能预置电路，包括一个复位电路，用于在上电时向微型计算机提供复位信号;一个延迟电路，用于接收复位信号并且将复位信号延迟预定时间段，以及连接在延迟电路和微型计算机的键输入端子之间的可预置功能预置开关。

2. 发明授权

US4525820A Function selecting method and system for an audio/video recording and reproducing system 失效
标题翻译：功能选择方法和系统，用于音频/视频记录和再现系统
公开(公告)号：US4525820A
公开(公告)日：1985-06-25
申请号：US245512
申请日：1981-03-19
申请人： Takashi Enoki , Hiroaki Nakamura , Fujio Nakashima
发明人： Takashi Enoki , Hiroaki Nakamura , Fujio Nakashima
IPC分类号： G11B5/027 , G11B20/00 , G11B31/00 , H04B1/20 , H04Q9/00 , H04N5/76
CPC分类号： H04B1/202 , G11B31/00
摘要： An audio/video recording and reproducing system having a discrete function unit such as tape deck, record player or tuner connected thereto includes a function selection circuit and a function specifying switch disposed in a main unit, such as a pre/main amplifier, and a control line, such as remote control line, for connecting the main unit and the discrete unit. By virtue of the function selection circuit, the selection of a desired discrete function unit can be carried out at the main unit. However, in addition to this, the system includes an arrangement for permitting selection of a desired discrete function unit at the discrete function unit itself, and, when this is done, for controlling the function selection at the main unit to select the output of the discrete function unit.
摘要翻译：具有诸如磁带机，记录播放器或调谐器的离散功能单元的音频/视频记录和再现系统包括功能选择电路和设置在诸如前/主放大器的主单元中的功能选择电路和功能指定开关，控制线，如遥控线，用于连接主机和离散机组。凭借功能选择电路，可以在主单元处执行期望的离散功能单元的选择。然而，除此之外，该系统包括用于允许在离散功能单元本身选择期望的离散功能单元的装置，并且当完成时，用于控制主单元处的功能选择以选择离散功能单元。

3. 发明授权

US4496947A Function switching system for an audio/video apparatus 失效
标题翻译：用于音频/视频设备的功能切换系统
公开(公告)号：US4496947A
公开(公告)日：1985-01-29
申请号：US368045
申请日：1982-04-14
申请人： Fujio Nakashima , Takashi Enoki , Kazuto Nakashima
发明人： Fujio Nakashima , Takashi Enoki , Kazuto Nakashima
IPC分类号： G11B20/00 , G11B31/00 , H04B1/20 , H04Q3/00
CPC分类号： G11B31/00 , H04B1/20
摘要： In an audio recording and reproducing system comprising a combination of audio units including a record player, a tuner and a tape deck and an amplifier unit including a preamplifier, a function switching system comprises a control unit arranged in the amplifier unit including a signal selection circuit for selecting out one of outputs of the audio units to a speaker, a control circuit for controlling the signal selection circuit and function switches for supplying function selection signals to the control circuit, and control signal lines for coupling the control circuit of the control unit to the audio units. The signal selection circuit responds to the actuation of a start switch of the audio unit to assume the selected function mode through the control signal line and the control circuit and responds to the actuation of a function switch of the control unit to assume the selected function mode. One of the audio units is activated (to start play) and the other units are deactivated (to stop play) through the control signal lines. The functions of the audio units and the control unit can be switched from either one of the units.
摘要翻译：一种音频记录和再现系统，包括包括记录播放器，调谐器和磁带机的音频单元和包括前置放大器的放大器单元的组合，功能切换系统包括布置在放大器单元中的控制单元，包括信号选择电路用于向扬声器选择音频单元的输出中的一个，用于控制信号选择电路的控制电路和用于向控制电路提供功能选择信号的功能开关，以及控制信号线，用于将控制单元的控制电路耦合到音频单元。信号选择电路响应音频单元的启动开关的启动，以通过控制信号线和控制电路采取选定的功能模式，并响应控制单元的功能开关的启动以采取选定的功能模式。一个音频单元被激活（开始播放），其他单元通过控制信号线被去激活（停止播放）。音频单元和控制单元的功能可以从任何一个单元切换。

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