公开(公告)号：US5019773A

公开(公告)日：1991-05-28

申请号：US397130

申请日：1989-08-22

申请人： Yasuyuki Sugiura ,  Rika Oue ,  Kunio Miyashita ,  Hiroshi Nagase ,  Nobuyoshi Mutoh ,  Sumio Kobayashi ,  Hiroshi Sugai

发明人： Yasuyuki Sugiura ,  Rika Oue ,  Kunio Miyashita ,  Hiroshi Nagase ,  Nobuyoshi Mutoh ,  Sumio Kobayashi ,  Hiroshi Sugai

IPC分类号： G01P3/481 ,  G01D5/244 ,  G01D5/245 ,  G01D5/246 ,  G01P3/42 ,  G01P3/44 ,  G01P3/489 ,  G05D3/12

CPC分类号： G01P3/489 ,  G01D5/24409 ,  G01D5/246

摘要： Sine wave signals generated from a position detector are used as analog values to detect a fine position of a rotating or moving body, a rise or fall edge of the sine wave signal is used to detect a coarse position of the rotating or moving body, and the position or speed of the rotating or moving body is detected based on a signal indicative of the detected coarse position when the rotating or moving body is at high speed and based on a signal indicative of the detected fine position when the rotating or moving body is at low speed to thereby provide optimal control from high speed to low speed. Especially at extremely low driving, speed detection with superhigh resolution is effected using the analog value to decrease an uneven rotation of the rotating body.

公开(公告)号：US5418932A

公开(公告)日：1995-05-23

申请号：US649861

申请日：1991-02-01

申请人： Mitsuru Watabe ,  Sanshiro Obara ,  Rika Oue ,  Shigeki Morinaga

发明人： Mitsuru Watabe ,  Sanshiro Obara ,  Rika Oue ,  Shigeki Morinaga

IPC分类号： G06F1/025 ,  H03K3/017

CPC分类号： G06F1/025

摘要： A pulse generating device according to the present invention is operated in accordance with a pulse control command including output time data about output pulse given from external equipment such as a CPU. The pulse control command including the output time data about the output pulses is transferred to a master memory of a contents addressable memory at an optional timing from outside. The contents of that master memory are copied to a slave memory in response to copy enable signals transmitted from a copy enable device. The copy enable signals are transmitted whenever a predetermined number synchronizing signals showing an end of the pulse period are generated from the interval timer. The contents addressable memory reads out the output control command of the output pulse from a slave memory when the timer value of the interval timer coincides with the time data of the slave memory. The output control circuit transmits output pulses which correspond to the control command read out as described above. As a result, if the output time data is reloaded at an optional timing from outside, the generation of an error in the pulse width of the output pulse can be prevented. Furthermore, the load of the CPU can be reduced.

摘要翻译： 根据本发明的脉冲发生装置根据包括从诸如CPU的外部设备给出的关于输出脉冲的输出时间数据的脉冲控制命令进行操作。 包括关于输出脉冲的输出时间数据的脉冲控制命令从外部以可选定时传送到内容可寻址存储器的主存储器。 响应于从复制使能设备发送的复制使能信号，该主存储器的内容被复制到从存储器。 每当从间隔定时器产生表示脉冲周期结束的预定数量的同步信号时，发送复制使能信号。 内容可寻址存储器当间隔定时器的定时器值与从存储器的时间数据一致时，从从器件读出输出脉冲的输出控制命令。 如上所述，输出控制电路传输与读出的控制命令对应的输出脉冲。 结果，如果从外部以可选定时重新加载输出时间数据，则可以防止产生输出脉冲的脉冲宽度的误差。 此外，可以减少CPU的负载。