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1. 发明授权

US4011588A Rotary head type magnetic tape video recording-reproducing device 失效
标题翻译：旋转头型磁带录像再现装置
公开(公告)号：US4011588A
公开(公告)日：1977-03-08
申请号：US579859
申请日：1975-05-22
申请人： Fujio Yasuda , Teruo Saito , Mamoru Hiroyasu
发明人： Fujio Yasuda , Teruo Saito , Mamoru Hiroyasu
IPC分类号： G11B15/00 , G11B15/24 , G11B15/42 , G11B15/43 , G11B15/48 , G11B15/61
CPC分类号： G11B15/61 , G11B15/42 , G11B15/43 , G11B15/48
摘要： In a rotary head type magnetic tape video recording-reproducing device of the type in which a magnetic tape from a supply reel is wrapped around a rotary drum carrying magnetic heads along the path of revolution thereof at an angle other than 0.degree. relative to the axis of rotation of said rotary drum, and is taken up by a take-up reel for recording or reproducing, when a stop button is depressed or the power supply to a take-up reel driving motor is interrupted, the motor is stopped and then immediately reversed in direction for a predetermined time, thereby loosening the tension of the magnetic tape. This arrangement prevents the adhesion of the magnetic tape to the surfaces of the magnetic tape passages, especially of the rotary drum, due to the moisture or the condensation of vapor so that the smooth re-starting of the magnetic tape may be ensured.
摘要翻译：在一种旋转磁头型磁带录像再现装置中，其中来自供带盘的磁带围绕着旋转磁鼓缠绕在旋转磁鼓上，旋转磁鼓沿其旋转路径以相对于轴线0°以外的角度卷绕旋转滚筒的旋转，并且被卷取卷轴卷取用于记录或再现，当停止按钮被按下或者对卷取卷轴驱动马达的电源中断时，马达停止然后马上在方向上反转预定时间，从而松动磁带的张力。这种布置防止由于水分或蒸汽的冷凝而使磁带粘附到磁带通道的表面，特别是旋转磁鼓的表面，从而可以确保磁带的平滑重新启动。

2. 发明授权

US5317641A Fader depth control apparatus 失效
标题翻译：推子深度控制装置
公开(公告)号：US5317641A
公开(公告)日：1994-05-31
申请号：US683887
申请日：1991-04-11
申请人： Fujio Yasuda , Alan Flum
发明人： Fujio Yasuda , Alan Flum
IPC分类号： H03G1/02 , H03G3/02 , H04H60/04 , H04B1/00 , H03G3/00
CPC分类号： H04H60/04 , H03G1/02 , H03G3/02
摘要： The present invention is directed to an audio mixing console having main and secondary faders to independently adjust the maximum and minimum levels of a FADE OUT or FADE IN signal received from an editor associated with the mixer console.
摘要翻译：本发明涉及一种音频混合控制台，其具有主和辅助推子，用于独立地调节从与混音器控制台相关联的编辑器接收的FADE OUT或FADE IN信号的最大和最小电平。

3. 发明授权

US5210502A Servo distortion trim for DBX VCA 失效
标题翻译： DBX VCA伺服失真修剪
公开(公告)号：US5210502A
公开(公告)日：1993-05-11
申请号：US826522
申请日：1992-01-12
申请人： Alan Flum , Michael Zampini , Fujio Yasuda
发明人： Alan Flum , Michael Zampini , Fujio Yasuda
IPC分类号： H03F1/32
CPC分类号： H03F1/3241
摘要： A servo distortion trim circuit for a DBX VCA is disclosed. The circuit comprises a feedback to the VCA which includes an inverting integrator. The input to the non-inverting terminal of the integrator is chosen to minimize distortion.
摘要翻译：公开了一种用于DBX VCA的伺服失真调整电路。电路包括对VCA的反馈，其包括反相积分器。选择积分器的反相端子的输入以最小化失真。

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