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公开(公告)号:US4451796A
公开(公告)日:1984-05-29
申请号:US300458
申请日:1981-09-08
申请人: Satoshi Yasumura
发明人: Satoshi Yasumura
CPC分类号: H03G3/3005 , H03G3/04
摘要: A volume control apparatus for use in an acoustic apparatus with a sound signal source and an amplifier which is usable as an alarm or warning apparatus. The volume control apparatus is provided with a motor for operating a volume control variable resistor, a manually operatable presetting variable resistor and first, second and third selectively operable manual switching means. Upon each power supply, the volume control variable resistor is always automatically set by the motor to a position corresponding to a preset position of the presetting variable resistor regardless of its position prior to the power supply.By selectively operating the first and second switching means at a desired moment after the power supply, the volume control variable resistor is set by the motor from the position corresponding to the preset position of the presetting variable resistor to a desired position regardless of its previous position.By operating the third switching means at a desired moment after the power supply, the presetting variable resistor can be adjusted while listening to a sound produced by a speaker.
摘要翻译: 一种用于具有声音信号源和可用作报警或警告装置的放大器的声学装置中的音量控制装置。 音量控制装置设置有用于操作音量控制可变电阻器的电动机,可手动操作的预设可变电阻器和第一,第二和第三选择性操作的手动开关装置。 在每个电源上,音量控制可变电阻器始终由电动机自动设置到与预置可变电阻器的预设位置相对应的位置,而不管其在电源之前的位置如何。 通过在电源之后的期望时刻选择性地操作第一和第二开关装置,音量控制可变电阻器由电动机从与预设可变电阻器的预设位置相对应的位置设定到期望位置,而不管其前一位置 。 通过在电源之后的期望时刻操作第三开关装置,可以在收听由扬声器产生的声音的同时调节预置可变电阻器。
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公开(公告)号:US4854145A
公开(公告)日:1989-08-08
申请号:US159279
申请日:1988-02-23
CPC分类号: E05B47/023 , B60R11/02 , E05B47/0002 , B60R11/0205 , B60R11/0211 , B60R2011/0043 , B60R2011/0098 , E05B2047/0073 , E05B43/00 , E05B47/0004 , Y10T70/5009 , Y10T70/5947
摘要: A lock device for locking an on-vehicle apparatus in a case built in a vehicle frame comprises an electrical actuator for releasing a locked state upon application of electric power thereto, and a unit for regulating an electric power application time period to drive the electrical actuator for a predetermined time period after an engine switch is turned off.
摘要翻译: 一种用于将车载设备锁定在车架内的壳体中的锁定装置,包括用于在施加电力时释放锁定状态的电致动器,以及用于调节电力施加时间段以驱动电致动器的单元 在发动机切换关闭之后的预定时间段内。
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