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    • 2. 发明授权
    • Phase servo circuit
    • 相伺服电路
    • US4390908A
    • 1983-06-28
    • US206055
    • 1980-11-12
    • Tadahiko NakamuraKenji NakanoShigeru Tajima
    • Tadahiko NakamuraKenji NakanoShigeru Tajima
    • H04N5/7826G11B15/18G11B15/467G11B27/02G11B27/024H04N5/78
    • G11B27/024G11B15/1808G11B2220/90
    • A phase servo circuit for controlling a rotatable magnetic head which is used for recording and/or reproducing a television signal includes a pulse generator for producing a pulse signal synchronous with the rotating phase of the rotatable magnetic head, a phase difference detecting circuit for generating a control signal which is used for controlling the rotating phase of the rotatable magnetic head, the control signal having a pulse width modulated in response to the phase difference between the pulse signal and the vertical synchronizing signal of a television signal to be recorded, another circuit for detecting the phase difference between the aforementioned vertical synchronizing signal and a second vertical synchronizing signal of a reproduced television signal and a modulating circuit for modulating the pulse width of the control signal in response to the output of the phase difference detecting circuit, whereby the phase angle of the first-mentioned and second vertical synchronizing signals are in synchronization with each other on a magnetic tape in order to carry out tape editing operation.
    • 用于控制用于记录和/或再现电视信号的可旋转磁头的相位伺服电路包括:脉冲发生器,用于产生与可旋转磁头的旋转相位同步的脉冲信号;相位差检测电路,用于产生 用于控制可旋转磁头的旋转相位的控制信号,该控制信号具有响应于要记录的电视信号的脉冲信号和垂直同步信号之间的相位差调制的脉冲宽度, 检测上述垂直同步信号与再现电视信号的第二垂直同步信号之间的相位差,以及响应于相位差检测电路的输出调制控制信号的脉冲宽度的调制电路,由此相位角 的第一和第二垂直同步 为了进行磁带编辑操作,磁带信号在磁带上彼此同步。
    • 4. 发明授权
    • Automatic tracking servo control system
    • 自动跟踪伺服控制系统
    • US4224643A
    • 1980-09-23
    • US945121
    • 1978-09-25
    • Kenji NakanoTadahiko Nakamura
    • Kenji NakanoTadahiko Nakamura
    • H04N5/7826G05D13/62G11B15/467G11B27/04G11B5/08G11B15/46H02K27/20
    • G11B15/4675
    • An automatic tracking servo control system which is adapted to control the tracking of at least one rotary signal reproducing transducer which scans successive parallel record tracks on a movable record medium. Position pulses are generated when the transducer rotates into predetermined position with respect to the record medium, and these position pulses are used in conjunction with control signals which are reproduced from the record medium and which had been recorded at spaced locations therealong in predetermined relation to the record tracks for controlling the position of the transducer with respect to the tracks scanned thereby. A detector detects the relative strength of the signal reproduced by the transducer during periodic intervals. A phase shift circuit shifts the phase of the position pulses by a selected amount during successive scanning cycles of the transducer, this amount being periodically adjusted as a function of the difference between the relative signal strengths in successive periodic intervals. The phase-shifted position pulses are used in a servo circuit, together with the control pulses, to control the tracking of the rotary head.
    • 一种自动跟踪伺服控制系统,其适于控制对可移动记录介质上的连续并行记录轨道进行扫描的至少一个旋转信号再现换能器的跟踪。 当换能器相对于记录介质旋转到预定位置时,产生位置脉冲,并且这些位置脉冲与从记录介质再现的控制信号一起使用,并且已经以与 记录轨道,用于控制换能器相对于由此扫描的轨迹的位置。 检测器在周期性间隔期间检测由换能器再现的信号的相对强度。 相移电路在换能器的连续扫描周期期间将位置脉冲的相位移位所选择的量,该量作为连续周期性间隔中的相对信号强度之差的函数被周期性地调整。 相移位置脉冲与控制脉冲一起用于伺服电路,以控制旋转磁头的跟踪。
    • 5. 发明授权
    • Digital servo control circuit
    • 数字伺服控制电路
    • US4287458A
    • 1981-09-01
    • US70523
    • 1979-08-28
    • Tadahiko NakamuraKenji Nakano
    • Tadahiko NakamuraKenji Nakano
    • G05D3/12G05B11/26G11B15/467H02P23/00H04N5/7826H02P5/16
    • H02P23/186Y10S388/90Y10S388/901Y10S388/912
    • In a digital servo control system, the duty cycle of a pulse width modulated signal for controlling a drive motor is determined by digital numbers representing phase and/or speed errors preset into a memory and circulating counter. The circulating counter is driven by a clock signal which performs a number of cycles during each basic timing interval. A pulse width modulated signal is initiated by a timing pulse and is terminated by each return to zero of the most significant digit of the circulating counter. The time at which the most significant digit of the circulating counter returns to zero at the end of each of its cycles is determined by the number initially preset into it. The memory is gated with the output of a four-bit counter, which increments at the same rate that the circulating counter cycles, to either lengthen each pulse width modulated signal by one clock cycle or not. The number of times the pulse-width modulated signal is lengthened in a basic timing interval is proportional to the number preset into the memory. The contents of the memory and the circulating counter are periodically changed to correspond to detected speed and/or phase errors to update the duty cycle of the pulse width modulated control signal.
    • 在数字伺服控制系统中,用于控制驱动电动机的脉冲宽度调制信号的占空比由表示预设在存储器和循环计数器中的相位和/或速度误差的数字数字确定。 循环计数器由在每个基本定时间隔内执行多个周期的时钟信号驱动。 脉冲宽度调制信号由定时脉冲启动,并且由循环计数器的最高有效位的每个返回到零终止。 循环计数器的最高有效位在其每个循环结束时返回零的时间由最初预设的循环计数器的数量确定。 存储器被门控,四位计数器的输出以与循环计数器循环相同的速率递增,以将每个脉宽调制信号延长一个时钟周期。 脉冲宽度调制信号在基本定时间隔中延长的次数与预设在存储器中的数字成比例。 存储器和循环计数器的内容被周期性地改变以对应于检测到的速度和/或相位误差,以更新脉宽调制控制信号的占空比。
    • 7. 发明授权
    • Automatic tracking servo control system
    • 自动跟踪伺服控制系统
    • US4210943A
    • 1980-07-01
    • US940269
    • 1978-09-07
    • Tadahiko NakamuraKenji Nakano
    • Tadahiko NakamuraKenji Nakano
    • H04N5/7826G05D13/62G11B15/467G11B21/10G11B15/46
    • G11B15/4675
    • An automatic tracking servo control system which is adapted to control the tracking of at least one rotary signal reproducing head which scans successive parallel record tracks on a movable record medium. Position pulses are generated when the at least one head rotates into predetermined position with respect to the record medium, and these position pulses are used in conjunction with control signals which are reproduced from the record medium and which had been recorded at spaced locations therealong in predetermined relation to the record tracks for controlling the position of the at least one head with respect to the tracks scanned thereby. A detector detects the relative strength of the signal reproduced by the at least one head during periodic intervals. A phase shift circuit shifts the phase of each reproduced control signal as a function of the difference between the relative signal strengths in successive periodic intervals. The phase-shifted control signal is used in a servo circuit, together with the position pulses, to control the tracking of the rotary head.
    • 一种自动跟踪伺服控制系统,其适于控制对可移动记录介质上的连续并行记录轨迹进行扫描的至少一个旋转信号再现头的跟踪。 当至少一个头部相对于记录介质旋转到预定位置时,产生位置脉冲,并且这些位置脉冲与从记录介质再现的控制信号结合使用,并且已经被记录在预定的位置上 与用于控制至少一个头相对于由此扫描的轨迹的位置的记录轨道相关。 检测器在周期性间隔期间检测由至少一个头部再现的信号的相对强度。 相移电路根据连续的周期性间隔中的相对信号强度之差,移位每个再现的控制信号的相位。 相位控制信号与位置脉冲一起用于伺服电路,以控制旋转磁头的跟踪。
    • 9. 发明授权
    • Secondary battery device and vehicle
    • 二次电池装置和车辆
    • US08587257B2
    • 2013-11-19
    • US12963021
    • 2010-12-08
    • Masayuki MurakamiKenji NakanoShinichiro Kosugi
    • Masayuki MurakamiKenji NakanoShinichiro Kosugi
    • H02J7/00
    • H02J7/0026B60L3/0038B60L3/0046B60L11/1861B60L2200/26B60L2240/545B60L2240/547B60L2240/549B60L2250/10Y02T10/7005Y02T10/7044Y02T10/705
    • A battery device includes secondary battery cells, a detector configured to detect respective voltages of the cells, a first circuit configured to output an overvoltage alarm signal for notifying whether each of the voltage values of the cells is an overvoltage equal to or more than a threshold value, a second circuit configured to output a first level shutdown signal to an upper controller when any of the secondary battery cells is judged to be overvoltage by the overvoltage alarm signal, and a third circuit configured to be supplied with the shutdown signal and to control operations of the first circuit and the second circuit. The second circuit assumes the shutdown signal at a second level when making self-diagnosis on the first circuit, and outputs an alarm signal for notifying the third circuit of, when the overvoltage alarm signal noticing an overvoltage is supplied, the overvoltage.
    • 电池装置包括二次电池单元,被配置为检测单元的各个电压的检测器,第一电路,被配置为输出过电压报警信号,用于通知单元的每个电压值是否为等于或大于阈值的过电压 值,第二电路,被配置为当任何二次电池单元被过电压报警信号判定为过电压时,将第一电平关闭信号输出到上控制器;以及第三电路,被配置为提供关断信号并控制 第一电路和第二电路的操作。 当在第一电路上进行自诊断时,第二电路将关闭信号置于第二电平,并且当提供过电压的过电压报警信号时,输出用于通知第三电路的报警信号的过电压。