公开(公告)号：US4298928A

公开(公告)日：1981-11-03

申请号：US954740

申请日：1978-10-26

申请人： Kunihiko Etoh ,  Tamotsu Ishigaki ,  Kuniyuki Niwa

发明人： Kunihiko Etoh ,  Tamotsu Ishigaki ,  Kuniyuki Niwa

IPC分类号： G06F13/12 ,  G05B19/414 ,  G06F5/10 ,  G06F12/00 ,  G06F15/16 ,  G06F15/167 ,  G06F3/04

CPC分类号： G06F5/10 ,  G05B19/4147 ,  G06F15/167 ,  G05B2219/33161

摘要： A data transfer system in which a programmable sequence controller, a computerized numerical controller and a pair of data transfer devices are associated respectively with the controllers. Each of the transfer devices includes a data memory and a first read-out and write-in circuit for exchanging control data between the data memory and the associated one of the controllers. Each of the transfer devices further includes a second read-out and write-in circuit which is enabled to operate when the first read-out and write-in circuit is inoperative, for exchanging control data between the data memory and the other controller, so that the control data is transferred from the sequence controller to the numerical controller, and vice versa.

摘要翻译： 一种数据传输系统，其中可编程序列控制器，计算机化数字控制器和一对数据传输装置分别与控制器相关联。 每个传输设备包括数据存储器和用于在数据存储器和相关联的一个控制器之间交换控制数据的第一读出和写入电路。 每个传送设备还包括第二读出和写入电路，其能够在第一读出和写入电路不工作时操作，用于在数据存储器和另一个控制器之间交换控制数据，因此 控制数据从序列控制器传送到数字控制器，反之亦然。

公开(公告)号：US3962619A

公开(公告)日：1976-06-08

申请号：US513383

申请日：1974-10-09

申请人： Hideo Nishimura ,  Tamotsu Ishigaki

发明人： Hideo Nishimura ,  Tamotsu Ishigaki

IPC分类号： B23Q11/04 ,  B23Q15/013 ,  B23Q15/12 ,  H02P8/14 ,  G05B19/24

CPC分类号： B23Q15/12 ,  B23Q11/04 ,  G05B2219/41326 ,  G05B2219/43194

摘要： A feed control device is disclosed for controlling the feed speed of a tool relative to a workpiece to be machined. The device includes a load detector for generating an output signal in response to a load applied to the tool, a circuit responsive to the output signal generated by the load detector when the load is higher than a predetermined value for successively decreasing the feed speed until the load reaches the predetermined value, and a circuit responsive to the output signal generated by the load detector when the load is not more than the predetermined value for successively increasing the feed speed until the feed speed reaches a predetermined value.

摘要翻译： 公开了一种用于控制工具相对于待加工的工件的进给速度的进给控制装置。 该装置包括负载检测器，用于响应于施加到工具的负载产生输出信号，电路响应于负载检测器产生的输出信号，当负载高于预定值时，连续降低进给速度，直到 负载达到预定值，以及响应于负载检测器产生的输出信号的电路，当负载不大于预定值时，用于连续增加进给速度，直到进给速度达到预定值。

公开(公告)号：US06757863B2

公开(公告)日：2004-06-29

申请号：US09953869

申请日：2001-09-18

申请人： Toshihiko Kaneshige ,  Tamotsu Ishigaki

发明人： Toshihiko Kaneshige ,  Tamotsu Ishigaki

IPC分类号： H03M1300

CPC分类号： G11B20/10 ,  G11B20/18 ,  H03M13/47

摘要： A decoding technique is disclosed for proving inexpensively a read channel circuit which has an error correction function and is applicable to high channel frequencies. In this read channel circuit, generating a reference slice level signal and a plurality of slice level signals which are different from the reference slice level signal, converting the playback signal into a plurality of binary signals synchronized with a channel clock according to each of the slice level signals, selecting two binary signals, measuring the phase distance between the two binary signals, judging the polarity of an inverted edge of a reference binary signal, and generating an error correction signal on the basis of the phase distance and the polarity of the inverted edge of the reference binary signal, whereby any error in the playback signal can be eliminated.

摘要翻译： 公开了一种解码技术，用于廉价地证明具有纠错功能并且适用于高信道频率的读通道电路。 在该读通道电路中，产生与参考限幅电平信号不同的参考限幅电平信号和多个限幅电平信号，根据每个切片将重放信号转换成与信道时钟同步的多个二进制信号 电平信号，选择两个二进制信号，测量两个二进制信号之间的相位距离，判断参考二进制信号的反相边沿的极性，并根据反相的相位距离和极性产生纠错信号 参考二进制信号的边沿，由此可以消除重放信号中的任何错误。