公开(公告)号：US5497059A

公开(公告)日：1996-03-05

申请号：US322411

申请日：1994-10-04

申请人： Fujio Tajima ,  Hideki Tanaka ,  Kooetsu Okuyama ,  Tomokazu Ishii ,  Kenji Toki

发明人： Fujio Tajima ,  Hideki Tanaka ,  Kooetsu Okuyama ,  Tomokazu Ishii ,  Kenji Toki

IPC分类号： G05B13/04 ,  G05B17/02

CPC分类号： G05B13/042 ,  G05B17/02

摘要： A servo-mechanism control system calculates an operation value to be applied to a control object from a desired value of a control output and a detected control output of the control object, and drives the control object based on the calculated operation value so that the control output becomes equal to the desired value. The control system is less sensitive to the variation of characteristics of the control object and disturbances, and stable control is accomplished by a simple circuit arrangement. A mathematical model and its inverse function, which are based on the assumption that the control system is not subjected to the variation of characteristics of the control object and disturbances, are used to calculate a model-based control output. In error of the operation value is calculated from the difference between the model-based control output and the detected control output by using the inverse function of the mathematical model, and the operation value applied to the control object is modified by subtracting the error from the calculated operation value. Alternatively, the model-based operation value is calculated from the detected control output by using only the inverse function of the mathematical model, and the operation value is modified based on the difference between the model-based operation value and the calculated operation value.

摘要翻译： 伺服机构控制系统根据控制输出的期望值和检测到的控制对象的控制输出来计算要施加到控制对象的操作值，并且基于计算出的操作值驱动控制对象，使得控制 输出变为等于所需值。 控制系统对控制对象和干扰特性的变化较不敏感，稳定控制是通过简单的电路布置实现的。 基于控制系统不受控制对象和干扰特性变化的假设的数学模型及其逆函数用于计算基于模型的控制输出。 由于使用数学模型的反函数，基于基于模型的控制输出与检测出的控制输出之间的差异来计算操作值，并且通过从控制对象中减去误差来修改应用于控制对象的操作值 计算操作值。 或者，通过仅使用数学模型的逆函数从检测到的控制输出计算基于模型的操作值，并且基于基于模型的操作值与计算的操作值之间的差异来修改操作值。

公开(公告)号：US5371449A

公开(公告)日：1994-12-06

申请号：US853947

申请日：1992-03-19

申请人： Fujio Tajima ,  Hideki Tanaka ,  Kooetsu Okuyama ,  Tomokazu Ishii ,  Kenji Toki

发明人： Fujio Tajima ,  Hideki Tanaka ,  Kooetsu Okuyama ,  Tomokazu Ishii ,  Kenji Toki

IPC分类号： G05B13/04 ,  G05B19/23 ,  G11B5/55 ,  G11B7/09 ,  G11B15/46 ,  G11B15/467 ,  G05B11/01

CPC分类号： G11B15/46 ,  G05B13/04 ,  G05B19/237 ,  G11B15/4673 ,  G11B5/5547 ,  G11B7/0901 ,  G05B2219/34014 ,  G05B2219/41368 ,  G05B2219/41393 ,  G05B2219/41394 ,  G05B2219/42062

摘要： In a servo system using a discrete signal relative to a position, a time delay and an error upon detecting a speed due to lack of positional information are eliminated to achieve a positioning to a target position in a short time. A pulse signal X.sub.P relative to a position is used to establish synchronization with an observer which is adjusted to match with an actual apparatus comprising a load, a motor and so on, and an estimated speed value or an estimated position value generated by the observer are used to determine an operating signal for the servo system.

摘要翻译： 在使用相对于位置的离散信号的伺服系统中，消除了由于缺少位置信息而检测到速度的时间延迟和误差，以在短时间内实现对目标位置的定位。 使用相对于位置的脉冲信号XP与观察者建立同步，该观察者被调整以与包括负载，电动机等的实际装置相匹配，并且由观察者产生的估计速度值或估计位置值 用于确定伺服系统的操作信号。

公开(公告)号：US5352961A

公开(公告)日：1994-10-04

申请号：US948266

申请日：1992-09-21

申请人： Fujio Tajima ,  Hideki Tanaka ,  Kooetsu Okuyama ,  Tomokazu Ishii ,  Kenji Toki

发明人： Fujio Tajima ,  Hideki Tanaka ,  Kooetsu Okuyama ,  Tomokazu Ishii ,  Kenji Toki

IPC分类号： G05B13/04 ,  G05B17/02

CPC分类号： G05B13/042 ,  G05B17/02

摘要： A servo-mechanism control system calculates an operation value to be applied to a control object from a desired value of a control output and a detected control output of the control object, and drives the control object based on the calculated operation value so that the control output becomes equal to the desired value. The control system is less sensitive to the variation of characteristics of the control object and disturbances, and stable control is accomplished by a simple circuit arrangement. A mathematical model and its inverse function, which are based on the assumption that the control system is not subjected to the variation of characteristics of the control object and disturbances, are used to calculate a model-based control output. An error of the operation value is calculated from the difference between the model-based control output and the detected control output by using the inverse function of the mathematical model, and the operation value applied to the control object is modified by subtracting the error from the calculated operation value. Alternatively, the model-based operation value is calculated from the detected control output by using only the inverse function of the mathematical model, and the operation value is modified based on the difference between the model-based operation value and the calculated operation value.

摘要翻译： 伺服机构控制系统根据控制输出的期望值和检测到的控制对象的控制输出来计算要施加到控制对象的操作值，并且基于计算出的操作值驱动控制对象，使得控制 输出变为等于所需值。 控制系统对控制对象和干扰特性的变化较不敏感，稳定控制是通过简单的电路布置实现的。 基于控制系统不受控制对象和干扰特性变化的假设的数学模型及其逆函数用于计算基于模型的控制输出。 通过使用数学模型的逆函数，基于基于模型的控制输出与检测到的控制输出之间的差计算操作值的误差，并且通过从控制对象的反函数中减去误差来修改施加到控制对象的操作值 计算操作值。 或者，通过仅使用数学模型的逆函数从检测到的控制输出计算基于模型的操作值，并且基于基于模型的操作值与计算的操作值之间的差异来修改操作值。

公开(公告)号：US5754361A

公开(公告)日：1998-05-19

申请号：US531107

申请日：1995-09-20

申请人： Kazuo Sakai ,  Tomokazu Ishii ,  Tadashi Honzawa ,  Masaru Orii ,  Fujio Tajima ,  Kooetsu Okuyama ,  Takao Terayama

发明人： Kazuo Sakai ,  Tomokazu Ishii ,  Tadashi Honzawa ,  Masaru Orii ,  Fujio Tajima ,  Kooetsu Okuyama ,  Takao Terayama

IPC分类号： G11B15/60 ,  G11B15/67 ,  G11B15/66

CPC分类号： G11B15/674

摘要： A tape cartridge is received into one end of an information recording and/or reproducing apparatus conforming to an 8 inch Form Factor Size. A first reel is held inside this tape cartridge, and a tape wound onto this first reel is extracted from a cartridge including the first reel and threaded by a simple pivotal motion of a tape threading arm, and wound onto a second reel disposed at the other end of the information recording and/or reproducing apparatus. The pivotal center of the tape threading arm and a recording head are disposed at opposite sides respectively with regard to a line joining a first and second reel axes to facilitate a compact overall construction. Tape guides formed into cylindrical rollers and the recording head are disposed on the inner side of the trajectory of the tape threading to transfer the tape smoothly. The tape guides and the recording head may be arranged substantially in line. Also, the tape guides next to the recording head may be fixed rollers.

摘要翻译： 磁带盒被接收到符合8英寸外形尺寸的信息记录和/或再现装置的一端。 第一卷轴被保持在该带盒内，并且缠绕在该第一卷轴上的带从包括第一卷轴的盒中提取并且通过带穿线臂的简单枢转运动而被卷绕，并且卷绕在另一个上布置的第二卷轴上 信息记录和/或再现装置的末端。 带穿线臂和记录头的枢转中心分别相对于连接第一和第二卷轴的线分别设置在相对侧，以便于紧凑的整体结构。 形成圆柱滚子的胶带导轨和记录头设置在磁带穿线的轨迹的内侧，以平滑地传送磁带。 带引导件和记录头可以基本上排成一列。 此外，记录头附近的带导向件可以是固定的辊。

公开(公告)号：US5739976A

公开(公告)日：1998-04-14

申请号：US550226

申请日：1995-10-30

申请人： Kazuo Sakai ,  Fumio Takeda ,  Taichiro Yamashita ,  Fujio Tajima ,  Takao Terayama ,  Tomokazu Ishii ,  Kooetsu Okuyama ,  Takayuki Munemoto ,  Nobuyuki Kaku ,  Kenmei Masuda ,  Shigeyuki Kobata ,  Fukuyasu Abe ,  Kenji Ogiro ,  Shigemitsu Higuchi

发明人： Kazuo Sakai ,  Fumio Takeda ,  Taichiro Yamashita ,  Fujio Tajima ,  Takao Terayama ,  Tomokazu Ishii ,  Kooetsu Okuyama ,  Takayuki Munemoto ,  Nobuyuki Kaku ,  Kenmei Masuda ,  Shigeyuki Kobata ,  Fukuyasu Abe ,  Kenji Ogiro ,  Shigemitsu Higuchi

IPC分类号： G11B15/67

CPC分类号： G11B15/67

摘要： As a method of increasing the storage capacity of a magnetic recording and reproducing apparatus for recording and reproducing information to and from a magnetic tape in a cartridge, there is a helical scan recording method in which the magnetic tape is diagonally wound around a drum which rotates a magnetic head. With an apparatus adapted to this method, the disposition of the cartridge and the take-up reel for taking up the magnetic tape on the same plane arises a necessity of considerably bending the magnetic tape at the drum portion and, accordingly, the magnetic tape is damaged. In order to prevent the damage of the foregoing type, the tape passage surface from the cartridge to the drum and the tape passage from the drum to the take-up reel are formed by an angle at which the direction in which the magnetic tape is moved is changed due to winding of the magnetic tape around the drum so that the magnetic tape is not bent excessively. A threading device capable of three-dimensionally controlling the position of the magnetic tape in accordance with a predetermined tape passage is provided for the apparatus structured as described above. The threading device is formed by a link mechanism to be moved along the locus of a cam groove so that the three-dimensional position control can be performed.

摘要翻译： 作为增加用于向盒中的磁带记录和再现信息的磁记录和再现装置的存储容量的方法，存在一种螺旋扫描记录方法，其中磁带对旋转地卷绕在转动的磁鼓上 磁头。 利用适用于该方法的装置，将磁带和用于将磁带卷绕在同一平面上的卷取卷轴的布置产生必须在磁鼓部分显着弯曲磁带，因此磁带是 破损。 为了防止上述类型的损坏，从盒到鼓的带通道表面和从鼓到卷取卷轴的带通道以磁带移动方向的角度形成 由于磁带绕磁鼓缠绕而变化，使得磁带不会过度弯曲。 对于如上所述构造的装置，提供能够根据预定的带通道三维地控制磁带的位置的穿线装置。 穿线装置由连接机构形成，以沿着凸轮槽的轨迹移动，从而能够进行三维位置控制。