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    • 8. 发明授权
    • Signal processing apparatus for disc memory devices
    • 光盘存储装置的信号处理装置
    • US4764913A
    • 1988-08-16
    • US942713
    • 1986-12-17
    • Hiroshi SasakiTomio ChibaMitsuyasu KidoYoshio SatoAtsumi Watanabe
    • Hiroshi SasakiTomio ChibaMitsuyasu KidoYoshio SatoAtsumi Watanabe
    • G11B5/012G11B7/013G11B20/10
    • G11B7/24085G11B20/10G11B5/012
    • 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.
    • 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。
    • 9. 发明授权
    • Protective relay
    • 保护继电器
    • US4562507A
    • 1985-12-31
    • US573137
    • 1984-01-23
    • Hiroyuki KudoAtsumi WatanabeHiroshi Sasaki
    • Hiroyuki KudoAtsumi WatanabeHiroshi Sasaki
    • H02H3/40H02H3/38H02H3/26
    • H02H3/382
    • 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.
    • 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。
    • 10. 发明授权
    • Color cathode ray tube with a dynamic convergence device and color
display system employing same
    • 具有动态会聚装置的彩色阴极射线管和采用其的彩色显示系统
    • US5828167A
    • 1998-10-27
    • US684341
    • 1996-07-19
    • Hiroshi JitsukataSoichi SakuraiHiroshi YoshiokaYoshio SatoHiroshi SasakiHidetsuyo Baba
    • Hiroshi JitsukataSoichi SakuraiHiroshi YoshiokaYoshio SatoHiroshi SasakiHidetsuyo Baba
    • H01J29/70
    • H01J29/705H01J2229/5687H01J2229/7037
    • A color cathode ray tube includes a three beam inline electron gun; a deflection device for performing deflection and self-convergence; a static beam convergence device having permanent magnets for generating a magnetic field adjustable to converge three electron beams at a central portion of a phosphor screen; and a dynamic convergence device having coreless electromagnetic coils for generating a magnetic field adjustable to converge three electron beams at peripheral portions of the phosphor screen. The dynamic beam convergence device includes a spiral coil conductor formed on a non-magnetic film. The dynamic beam convergence device also includes two cylindrical holder members having large and small diameters, respectively, made of an insulating material, which are held in such a manner as to be coaxial and overlapped on each other; and a coil member including a plurality of printed coils for generating magnetic fields having an even number of poles contained in a flexible film, the coil member being disposed between the two cylindrical holder members having large and small diameters respectively; wherein a plurality of the printed coils are stacked in the flexible film in such a manner as to be insulated from each other; and printed coils adjacent to each other and having the same diameter are electrically connected to each other in the flexible film.
    • 彩色阴极射线管包括三束一维电子枪; 用于进行偏转和自会聚的偏转装置; 具有用于产生可调节以在荧光屏的中心部分会聚三束电子束的磁场的永磁体的静态束会聚装置; 以及具有无芯电磁线圈的动态会聚装置,用于产生可调节以在荧光屏的周边部分会聚三束电子束的磁场。 动态光束会聚装置包括形成在非磁性膜上的螺旋线圈导体。 动态束会聚装置还包括分别具有大直径和小直径的两个圆柱形保持器构件,绝缘材料制成,它们以彼此同轴并重叠的方式保持; 以及线圈构件,其包括多个用于产生具有包含在柔性膜中的偶数个磁极的磁场的印刷线圈,所述线圈构件分别设置在具有大直径和小直径的两个圆柱形保持器构件之间; 其中多个所述印刷线圈以彼此绝缘的方式堆叠在所述柔性膜中; 并且彼此相邻且具有相同直径的印刷线圈在柔性膜中彼此电连接。