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12 条记录 (耗时 0.028 秒)

    Signal processing apparatus for disc memory devices
    1.
    发明授权
    Signal processing apparatus for disc memory devices 失效
    光盘存储装置的信号处理装置

    公开(公告)号：US4764913A

    公开(公告)日：1988-08-16

    申请号：US942713

    申请日：1986-12-17

    申请人： Hiroshi Sasaki ,  Tomio Chiba ,  Mitsuyasu Kido ,  Yoshio Sato ,  Atsumi Watanabe

    发明人： Hiroshi Sasaki ,  Tomio Chiba ,  Mitsuyasu Kido ,  Yoshio Sato ,  Atsumi Watanabe

    IPC分类号： G11B5/012 ,  G11B7/013 ,  G11B20/10

    CPC分类号： G11B7/24085 ,  G11B20/10 ,  G11B5/012

    摘要： A disc is provided with the equal-interval pits along tracks, at which digital signals are recorded bit by bit. Such a disc is rotated at the constant angular velocity. A signal processing apparatus according to the present invention detects the linear velocity of the track which is at present followed by a pickup. The filtering of a source signal to be recorded and the analog-to-digital conversion of the filtered signal, in the signal processing for recording, are controlled and timed in accordance with the detected linear velocity. Further, the digital-to-analog conversion of a signal read out from the disc and the filtering of the converted signal, in the signal processing for reproducing, are also timed and controlled in response to the detected linear velocity. Thereby, a disc memory device having the large storage capacity and suited for the random access memory can be realized.

    摘要翻译： 光盘上设有沿轨道的等间隔凹坑，数字信号逐位记录。 这样的盘以恒定的角速度旋转。 根据本发明的信号处理设备检测当前跟踪拾取的轨道的线速度。 在记录的信号处理中对要记录的源信号的滤波和滤波信号的模数转换根据检测到的线速度被控制和定时。 此外，在用于再现的信号处理中，从盘读出的信号的数模转换和转换的信号的滤波也响应于检测到的线速度而被定时和控制。 因此，可以实现具有大存储容量并且适合随机存取存储器的盘存储器件。

    Optical recording method and apparatus using two fight spots
    5.
    发明授权
    Optical recording method and apparatus using two fight spots 失效
    光记录方法和装置使用两个战斗点

    公开(公告)号：US4841514A

    公开(公告)日：1989-06-20

    申请号：US919421

    申请日：1986-10-16

    申请人： Nobuyoshi Tsuboi ,  Atsumi Watanabe ,  Yoshio Sato ,  Satoshi Shimada ,  Hiroshi Sasaki

    发明人： Nobuyoshi Tsuboi ,  Atsumi Watanabe ,  Yoshio Sato ,  Satoshi Shimada ,  Hiroshi Sasaki

    IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/0055 ,  G11B7/006 ,  G11B7/125 ,  G11B7/135 ,  G11B7/30

    CPC分类号： G11B7/006 ,  G11B7/125

    摘要： A light spot determining a first condition that an optical recording medium is cooled after being heated to a temperature exceeding a first temperature and a light spot determining a second condition that the optical recording medium is cooled after being heated to a temperature exceeding a second temperature higher than the room temperature and not exceeding the first temperature higher than the second temperature, namely, the two light spots are radiated onto the optical recording medium and in the same guide track thereof wherein signals are recorded and erased on the optical recording medium by controlling the spot diameter of each light spot and/or the light intensity thereof.

    摘要翻译： 确定光学记录介质在被加热到超过第一温度的温度后被冷却的第一条件的光点和确定光学记录介质在被加热到超过第二温度的温度之后被冷却的第二条件的光点 比室温高并且不超过高于第二温度的第一温度，即，两个光点被辐射到光记录介质上，并且在相同的导轨中，其中通过控制光记录介质在光记录介质上记录和擦除信号 每个光点的光斑直径和/或其光强度。

    Combustion control method
    6.
    发明授权
    Combustion control method 失效
    燃烧控制方法

    公开(公告)号：US4622922A

    公开(公告)日：1986-11-18

    申请号：US743439

    申请日：1985-06-10

    申请人： Hisanori Miyagaki ,  Toshihiko Higashi ,  Atsushi Yokogawa ,  Yoshihiro Shimada ,  Nobuo Kurihara ,  Mitsuyo Nishikawa ,  Yoshio Sato ,  Atsumi Watanabe ,  Yasuo Morooka

    发明人： Hisanori Miyagaki ,  Toshihiko Higashi ,  Atsushi Yokogawa ,  Yoshihiro Shimada ,  Nobuo Kurihara ,  Mitsuyo Nishikawa ,  Yoshio Sato ,  Atsumi Watanabe ,  Yasuo Morooka

    IPC分类号： F23N1/02 ,  F23N5/08 ,  F23N5/18 ,  F22B37/42

    CPC分类号： F23N5/082 ,  F23N1/022 ,  F23N2023/40 ,  F23N2025/08 ,  F23N2025/10 ,  F23N2025/16 ,  F23N2027/20 ,  F23N2037/16 ,  F23N2039/02 ,  F23N5/18

    摘要： A combustion control method wherein manipulated variables or the amounts of fuel and air in at least one combustion zone of a boiler are regulated so that both the amount of nitrogen oxides and the amount of unburned coal in the ash at an outlet of a burner furnace or at least one of them passes the regulation standards and satisfies the requirements for operating a plant. The method is characterized by varying the amounts of fuel and air in performing trial operations on manipulated variables to evaluate the nitrogen oxides at the furnace outlet, the unburned coal in the ash at the furnace outlet and the stability of combustion, and declaring as optimum manipulated variables those amounts of fuel and air used for performing the trial operations which achieve results such that the combustion is found to be stabilized, at least the nitrogen oxides at the furnace outlet satisfy the requirement and the thermal efficiency of the boiler is judged to be at the highest level by a boiler thermal efficiency judging section.

    摘要翻译： 一种燃烧控制方法，其中调节锅炉的至少一个燃烧区域中的操作变量或燃料和空气的量，以便在燃烧器炉的出口处的灰分中的氮氧化物的量和未燃烧的煤量， 其中至少有一个通过了监管标准，并满足了运行工厂的要求。 该方法的特征在于在对操作变量进行试验操作时改变燃料和空气的量，以评估炉出口处的氮氧化物，炉出口处的灰分中的未燃烧煤和燃烧的稳定性，并声明为最佳操纵 变量用于进行试验操作的燃料和空气的量，其实现结果使得发现燃烧稳定，至少炉出口处的氮氧化物满足要求，并且锅炉的热效率被判断为 锅炉热效率评估部门的最高水平。

    Protective relay
    8.
    发明授权
    Protective relay 失效
    保护继电器

    公开(公告)号：US4562507A

    公开(公告)日：1985-12-31

    申请号：US573137

    申请日：1984-01-23

    申请人： Hiroyuki Kudo ,  Atsumi Watanabe ,  Hiroshi Sasaki

    发明人： Hiroyuki Kudo ,  Atsumi Watanabe ,  Hiroshi Sasaki

    IPC分类号： H02H3/40 ,  H02H3/38 ,  H02H3/26

    CPC分类号： H02H3/382

    摘要： A protective relay which hardly makes maloperation in itself regardless of mixing of low-order higher harmonics in its at least two sinusoidal input signals comprises a first and a second phase detection comparator generating two different-phase square signals indicative of the phase difference between the sinusoidal input signals, a first and a second timer receiving the square signals generated from the first and second phase detection comparators respectively and generating their output signals as a result of comparison between a first period of time and one of the periods or the period of presence or absence of the square signals, a third timer receiving the same square signal as that applied to the first timer and generating its output signal as a result of comparison between a second period of time and the other period or the period of absence or presence of the square signal, a fourth timer receiving the same square signal as that applied to the second timer and generating its output signal as a result of comparison between the second period of time and the other period or the period of absence or presence of the square signal, a first flip-flop set by the first timer and reset by the third timer, a second flip-flop set by the second timer and reset by the fourth timer, and a third flip-flop set and reset by an AND circuit and a NOR circuit respectively connected to the outputs of the first and second flip-flop.

    摘要翻译： 无论在其至少两个正弦输入信号中混合低次高次谐波，本身几乎不会发生误操作的保护继电器包括：第一和第二相位检测比较器，产生指示正弦波形之间的相位差的两个不同相位方波信号 输入信号，第一和第二定时器分别接收从第一和第二相位检测比较器产生的平方信号，并且作为第一时间段与存在的一个周期或周期之间的比较的结果产生其输出信号，或者 不存在平方信号，第三定时器接收与施加到第一定时器相同的平方信号，并且作为第二时间段与另一周期之间的比较的结果产生其输出信号，或者存在 接收与施加到第二定时器相同的平方信号并产生其第二定时器的第四定时器 作为第二时间段与另一个周期之间的比较结果或不存在或存在平方信号的周期的结果，由第一定时器设置并由第三定时器复位的第一触发器，第二触发器， 由第二定时器设置并由第四定时器复位，以及由AND电路和NOR电路设置和复位的第三触发器，该AND电路和NOR电路分别连接到第一和第二触发器的输出。

    Inverter control system
    9.
    发明授权
    Inverter control system 失效
    变频器控制系统

    公开(公告)号：US4028607A

    公开(公告)日：1977-06-07

    申请号：US566091

    申请日：1975-04-08

    申请人： Atsumi Watanabe

    发明人： Atsumi Watanabe

    IPC分类号： H02M7/525 ,  H02M7/00

    CPC分类号： H02M7/525

    摘要： An inverter in the D.C. power transmission is controlled by gate pulses which are synchronized with voltages of an A.C. system and whose interval is constant for respective arms of the inverter. Simultaneously therewith, in order to prevent the inverter from causing a commutation failure due to a fault in the A.C. system, a control voltage for making the gate pulses is corrected by the use of the lowest one of the phase voltages or line voltages of the A.C. system. The control voltage becomes greater as the phase voltage or the line voltage lowers more from a rated voltage. When the control voltage increases, the gate pulses are provided at a timing of a larger advanced control angle so as to maintain the extinction angle constant.

    摘要翻译： 直流输电中的逆变器通过与交流电系统的电压同步并且其逆变器各臂的间隔恒定的门脉冲来控制。 与此同时，为了防止逆变器由于交流系统的故障导致换向故障，通过使用AC中的最低相位电压或线电压来校正用于产生栅极脉冲的控制电压 系统。 当相电压或线电压从额定电压降低时，控制电压变大。 当控制电压增加时，栅极脉冲以较大的先进控制角度的定时被提供，以便保持消光角恒定。

    Gate controlling apparatus for a thyristor valve
    10.
    发明授权
    Gate controlling apparatus for a thyristor valve 失效
    晶闸管阀门控制装置

    公开(公告)号：US4100434A

    公开(公告)日：1978-07-11

    申请号：US669751

    申请日：1976-03-24

    申请人： Ryuji Iyotani ,  Atsumi Watanabe ,  Hisao Amano ,  Fumio Ogata

    发明人： Ryuji Iyotani ,  Atsumi Watanabe ,  Hisao Amano ,  Fumio Ogata

    IPC分类号： H02M1/08 ,  H02M1/088 ,  H02M1/092 ,  H03K17/14

    CPC分类号： H02M1/092 ,  H02M1/088

    摘要： A gate controlling apparatus for a thyristor valve including a plurality of series connected thyristors controlled by a narrow gate pulse. The apparatus includes means for judging whether the thyristor valve is to be in the conductive state or not, means for detecting a forward voltage across at least one of the thyristors in the thyristor valve, and an AND circuit for generating an output at a time when an AND condition between the respective outputs of the judging means and the forward voltage detector means is satisfied. The apparatus further includes means for detecting a period of inverse voltage across at least one of the thyristors in the thyristor valve. The forward and inverse voltages may be, respectively, detected by detecting the forward and inverse voltages of specified thyristors.

    摘要翻译： 一种用于晶闸管阀的门控制装置，包括由窄门脉冲控制的多个串联连接的晶闸管。 该装置包括用于判断晶闸管阀是否处于导通状态的装置，用于检测晶闸管阀中的至少一个晶闸管的正向电压的装置，以及用于产生输出的“与”电路， 满足判断装置和正向电压检测装置的各个输出之间的“与”条件。 该装置还包括用于检测跨越可控硅阀中的至少一个晶闸管的反向电压周期的装置。 分别通过检测指定晶闸管的正向和反向电压来检测正向和反向电压。