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41. 发明授权

US4661754A Control circuit for a stepping motor 失效
标题翻译：步进电机控制电路
公开(公告)号：US4661754A
公开(公告)日：1987-04-28
申请号：US732696
申请日：1985-05-10
申请人： Taiji Tajima , Shigemitsu Higuchi
发明人： Taiji Tajima , Shigemitsu Higuchi
IPC分类号： H02P8/00 , H02P8/14 , H02P8/18
CPC分类号： H02P8/14 , H02P8/18
摘要： A control circuit comprises a first counter for counting up stepping pulses and counting down the number of steps of a stepping motor, a memory for storing therein a drive timing of the stepping motor, a variable timer for converting a data in the memory to a real time, a second counter for counting up an output signal of the variable timer when a count of the second counter is smaller than a count of the first counter and counting down the output signal of the variable timer when the count of the second counter is equal to or larger than the count of the first counter, and a drive circuit for driving the stepping motor in accordance with the output signal of the variable timer.Signals to set the first counter in the count-up mode and the count-down mode are synchronized with two clock signals having the same frequency and different phases. The control circuit drives the stepping motor immediately after the control pulse signal was applied to accelerate or decelerate the stepping motor so that a velocity pattern of the stepping motor is controlled in a pedestal pattern.
摘要翻译：控制电路包括：第一计数器，用于对步进脉冲进行计数和对步进电机的步数进行计数;存储器，用于存储步进电机的驱动定时;可变定时器，用于将存储器中的数据转换为真实的当第二计数器的计数小于第一计数器的计数并且当第二计数器的计数相等时对可变定时器的输出信号进行计数，计数可变定时器的输出信号的第二计数器达到或大于第一计数器的计数，以及用于根据可变定时器的输出信号驱动步进电机的驱动电路。用于将第一个计数器置于递增模式和递减模式的信号与具有相同频率和不同相位的两个时钟信号同步。控制电路在施加控制脉冲信号之后立即驱动步进电机，以加速或减速步进电机，使得步进电机的速度模式被控制在基座图案中。

42. 发明授权

US4622603A Head positioning system for magnetic recording/playback apparatus 失效
标题翻译：磁记录/播放装置的头定位系统
公开(公告)号：US4622603A
公开(公告)日：1986-11-11
申请号：US658299
申请日：1984-10-05
申请人： Sinji Mizunuma , Masayoshi Sunada , Shigemitsu Higuchi
发明人： Sinji Mizunuma , Masayoshi Sunada , Shigemitsu Higuchi
IPC分类号： G11B5/596 , G11B5/55
CPC分类号： G11B5/59627
摘要： A magnetic storage disk tracking system employing a stepping motor is operable to compensate the tracking error within a certain expected range caused by the hysteretic movement of the motor. The system incorporates means for recognizing the track to which the magnetic head is positioned and memory means in which is stored data for compensating the positioning error depending on each track. The stepping motor is controlled through the excitation voltage of each winding under modulation in terms of the magnitude or duty cycle in compliance with the stored data.
摘要翻译：使用步进电机的磁存储盘跟踪系统可操作以将跟踪误差补偿在由电动机的滞后运动引起的特定预期范围内。该系统包括用于识别磁头所位于的轨道的装置和存储装置，其中存储有用于根据每个轨道补偿定位误差的数据。通过根据存储的数据在幅度或占空比方面根据调制的每个绕组的激励电压控制步进电机。

43. 发明授权

US4401971A Alarm device for a vehicle including priority control for plural alarm conditions 失效
标题翻译：一种用于车辆的报警装置，包括多个报警条件的优先控制
公开(公告)号：US4401971A
公开(公告)日：1983-08-30
申请号：US242187
申请日：1981-03-10
申请人： Tadashi Saito , Tohru Sampei , Akihiro Asada , Yoshihiro Ohta , Syunji Iwasaki , Shigemitsu Higuchi , Hiroshi Ozawa , Yasunari Tanaka
发明人： Tadashi Saito , Tohru Sampei , Akihiro Asada , Yoshihiro Ohta , Syunji Iwasaki , Shigemitsu Higuchi , Hiroshi Ozawa , Yasunari Tanaka
IPC分类号： B60R16/02 , B60R16/037 , G07C5/08 , G08B19/00
CPC分类号： B60R16/0373 , G07C5/0833
摘要： An alarm device for a vehicle comprises sensors for detecting abnormal states of the vehicle, a logic circuit for receiving the outputs of the sensors and producing one or more alarm speech designation signals and an alarm speech generator responsive to the alarm designation signal. The logic circuit includes a priority circuit for determining the order of precedence of the abnormal states represented by the detection signals on the basis of the degree of emergency, so that the alarm speech is concerned with the most emergent alarm when two or more abnormal states are detected simultaneously. The logic circuit may further include a switch circuit for disabling at least one of the detection signals so that a vehicle driver having taken notice of particular alarms is not disturbed by excessive alarming.
摘要翻译：用于车辆的报警装置包括用于检测车辆的异常状态的传感器，用于接收传感器的输出并产生一个或多个报警语音指定信号的逻辑电路和响应于报警指定信号的报警语音发生器。该逻辑电路包括一个优先电路，用于根据紧急程度来确定由检测信号表示的异常状态的优先次序，使得当两个或多个异常状态为同时检测。逻辑电路还可以包括用于禁用至少一个检测信号的开关电路，使得已经注意到特定警报的车辆驾驶员不被过度报警所干扰。

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