专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP0060522A2 Tape recorder 失效
标题翻译： Bandrecorder。
公开(公告)号：EP0060522A2
公开(公告)日：1982-09-22
申请号：EP82101959.3
申请日：1982-03-11
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Ishigo, Hideyasu , Nishizono, Minoru
IPC分类号： G11B15/26 , G11B15/46 , H02K29/02
CPC分类号： G11B15/26 , G11B15/54
摘要： A tape recorder which comprises; a capstan (39) for driving a magnetic recording tape at a normal constant speed; a first motor (43) for rotating the capstan (39), including a first rotor magnet (31), a first rotating shaft (311) mounted to the first rotor magnet (31) and the capstan (39) coaxially, and a first stator coil (41) for applying a rotating magnetic field to the first rotor magnet (31); a first reel (40) for taking up the tape; a second motor (44) for rotating the first reel (40), including a second motor magnet (32), a second rotating shaft (321) mounted to the second rotor magnet (32) and the first reel (40) coaxially, and a second stator coil (42) for applying a rotating magnetic field to the second rotor magnet (32); a second reel (55) for supplying the tape; a third motor (56) for rotating the second reel (55), including a third rotor magnet (54), a third rotating shaft (541) mounted to the third rotor magnet (54) and the second reel (55) coaxially, and a third stator coil (49) for applying a rotating magnetic field to the third rotor magnet (54); an FG pattern (51) for producing a signal which has a frequency in accordance with a rotational frequency of the first rotor magnet (31); an output mechanism (65, 66, 67) for producing a signal which has a reference frequency; and a comparator (68) for comparing outputs from the FG pattern (51) and the output mechanism (65, 66, 67) and for controlling to drive the first motor (43) at a predetermined rotational frequency.
摘要翻译：一种录音机，包括：用于以正常恒定速度驱动磁记录带的主导轴; 用于使绞盘旋转的第一电动机，包括第一转子磁体，同轴安装到第一转子磁体和主导轴的第一旋转轴和用于向第一转子磁体施加旋转磁场的第一定子线圈; 用于卷起磁带的第一卷轴; 用于旋转第一卷轴的第二电动机，包括第二转子磁体，同轴安装到第二转子磁体和第一卷盘的第二旋转轴以及用于向第二转子磁体施加旋转磁场的第二定子线圈; 用于提供带的第二卷轴; 用于旋转第二卷轴的第三电动机，包括第三转子磁体，同轴安装到第三转子磁体和第二卷轴的第三旋转轴和用于向第三转子磁体施加旋转磁场的第三定子线圈; 用于产生具有根据第一转子磁体的转动频率的频率的信号的FG模式; 用于产生具有参考频率的信号的输出机构; 以及用于比较来自FG图案和输出机构的输出并用于控制以预定旋转频率驱动第一电动机的比较器。

IPRDB

热门服务

关于我们

友情链接

联系方式