公开(公告)号：US4724476A

公开(公告)日：1988-02-09

申请号：US785204

申请日：1985-10-07

申请人： Yukio Nakagawa ,  Tokikazu Matsumoto ,  Masao Tomita

发明人： Yukio Nakagawa ,  Tokikazu Matsumoto ,  Masao Tomita

IPC分类号： H04N9/79 ,  H04N9/83

CPC分类号： H04N9/79 ,  H04N9/7921 ,  H04N9/831

摘要： A chrominance signal processing apparatus for converting an input carrier chrominance signal received in a first operation mode to an output low-band converted chrominal signal, and for converting an input low-band converted chrominance signal received in a second operation mode to an output carrier chrominance signal includes a frequency converting circuit which performs these conversions in the respective first and second operation modes. A carrier chrominance signal carrier and a low-band converted chrominance signal carrier, both for use in the frequency converting circuit, are respectively generated by the first and second carrier generating circuits. In each of the first and second operation modes, one of the first and second carrier generating circuits is controlled to compensate for a phase error of each of the input signals. A phase error detecting circuit detects the phase error from the burst signals extracted from the output and respectively input low-band converted chrominance signals in the first and second operation modes to produce a control voltage signal for controlling the first or second carrier generating circuit. Control signals for the ACC and color killer circuit are also produced from the abovenoted burst signals.

摘要翻译： 一种色度信号处理装置，用于将在第一操作模式中接收的输入载波色度信号转换为输出低频带转换的色信号，并将用于将在第二操作模式中接收的输入低频转换色差信号转换为输出载波色度 信号包括在各自的第一和第二操作模式中执行这些转换的频率转换电路。 分别由第一和第二载波发生电路产生用于频率转换电路的载波色度信号载波和低频带转换色度信号载波。 在第一和第二操作模式中的每一个中，控制第一和第二载波发生电路之一以补偿每个输入信号的相位误差。 相位误差检测电路根据从输出提取的脉冲串信号检测相位误差，分别在第一和第二运行模式中输入低频转换色度信号，以产生用于控制第一或第二载波产生电路的控制电压信号。 ACC和彩色抑制电路的控制信号也由上述突发信号产生。

公开(公告)号：US4754340A

公开(公告)日：1988-06-28

申请号：US666375

申请日：1984-10-30

申请人： Yukio Nakagawa ,  Masao Tomita ,  Tokikazu Matsumoto

发明人： Yukio Nakagawa ,  Masao Tomita ,  Tokikazu Matsumoto

IPC分类号： H04N9/83 ,  H04N9/87

CPC分类号： H04N9/8707 ,  H04N9/831

摘要： A low-range-converted chrominance signal is demodulated into two color difference signals. The two color difference signals are each filtered by a comb filter to eliminate undesired components. The two color difference signals, having been filtered, are modulated to obtain a carrier chrominance signal having a prescribed carrier frequency. To be suitable for digital signal processing, the low-range-converted chrominance signal is sampled at a first frequency which is an integral multiple of a low-range-converted carrier frequency of the low-range-converted chrominance signal when being demodulated. The two color difference signals are sampled at a second frequency which is an integral multiple of the prescribed carrier frequency of the carrier chrominance signal.

摘要翻译： 低范围转换的色度信号被解调成两个色差信号。 两个色差信号都被梳状滤波器滤波以消除不期望的分量。 被滤波的两个色差信号被调制以获得具有规定载波频率的载波色度信号。 为了适合于数字信号处理，低频转换色度信号在被解调时以低范围转换色度信号的低范围转换载波频率的整数倍的第一频率被采样。 两个色差信号以作为载波色度信号的规定载波频率的整数倍的第二频率被采样。

公开(公告)号：US4549226A

公开(公告)日：1985-10-22

申请号：US433532

申请日：1982-10-08

申请人： Masao Tomita

发明人： Masao Tomita

IPC分类号： G11B5/588 ,  G11B5/592 ,  G11B15/467 ,  H04N9/79 ,  G11B21/10 ,  H04N5/92

CPC分类号： G11B5/588 ,  G11B5/592

摘要： An automatic tracking apparatus, by which a tracking condition of reproducing heads and a recorded track can be automatically adjusted. This apparatus has a rotary heads, an envelope detector, and a filter. A tracking error signal is generated by detecting the envelope of a video signal which does not contain chrominance signal components, the video signal being derived from the rotary heads. As a result, the tracking error signal includes only the luminance signal but does not include the signal from the next track. Therefore, the envelope signal is a good tracking error signal which is only responsive to the signal level of the objective track.

摘要翻译： 一种自动跟踪装置，通过该装置可以自动调节再现头和记录轨道的跟踪条件。 该装置具有旋转头，包络检测器和过滤器。 通过检测不包含色度信号分量的视频信号的包络来产生跟踪误差信号，视频信号是从旋转磁头导出的。 结果，跟踪误差信号仅包括亮度信号，但不包括来自下一个轨道的信号。 因此，包络信号是仅响应于物镜的信号电平的良好的跟踪误差信号。

公开(公告)号：US5634048A

公开(公告)日：1997-05-27

申请号：US402725

申请日：1995-03-13

申请人： Tadamitsu Ryu ,  Toshio Takahara ,  Shingo Hirono ,  Tohru Matsumoto ,  Gen Kakehi ,  Yoshio Mogi ,  Takanori Fukatsu ,  Masao Tomita ,  Takashi Ohshiro

发明人： Tadamitsu Ryu ,  Toshio Takahara ,  Shingo Hirono ,  Tohru Matsumoto ,  Gen Kakehi ,  Yoshio Mogi ,  Takanori Fukatsu ,  Masao Tomita ,  Takashi Ohshiro

IPC分类号： G06F17/30

CPC分类号： G06F17/30312

摘要： A data retrieval method and apparatus in a distributed database system. Data is retrieved from a distributed database quickly with a minimum load on each terminal. A contents file is provided in each terminal, and a link file is provided in a center system to coordinate access to the distributed data in each terminal.

摘要翻译： 分布式数据库系统中的数据检索方法和装置。 数据从分布式数据库快速检索，每个终端的最小负载。 在每个终端中提供内容文件，并且在中央系统中提供链接文件以协调对每个终端中的分布式数据的访问。

公开(公告)号：US4821139A

公开(公告)日：1989-04-11

申请号：US889095

申请日：1986-07-23

申请人： Masao Tomita

发明人： Masao Tomita

IPC分类号： H01T1/12 ,  H02H1/00

CPC分类号： H01T1/12 ,  Y10S116/33

摘要： An impulse rocket propellant is comprised of highly hydrated minearl salts such as boric acid hydrate HBO.sub.2.H.sub.2 O and a plaster forming agent comprising calcium oxide hydrate CaO.H.sub.2 O and sodium sulfate hydrate Na.sub.2 SO.sub.4.10H.sub.2 O, all of which are compounded and intimately commingled with a heat conducting inorganic fiber such as glass wool. When these compounds are allowed to dry, loaded into suitable rocket devices, and instantaneously heated, the water of hydration of the hydrated mineral instantaneously vaporizes into steam which can be used to propel the rocket. The resulting unhydrated mineral salts are entrained within the steam. Upon coming into contact with the atmosphere, the steam condenses into fine water droplets into which the entrained salts dissolve and ionize. Because of its high conductivity, the resulting electrolyte vapor trail left by such propellants is particularly useful as an electrical bridge through which lightning can be removed from sensitive objects and conveniently grounded.

摘要翻译： 冲击式火箭推进剂由高度水合的矿物盐如硼酸水合物HBO2.H2O和包含氧化钙水合物CaO·H 2 O和硫酸钠水合物Na 2 SO 4·10H 2 O的石膏形成剂组成，所有这些都复合并与热量密切混合 导电无机纤维如玻璃棉。 当这些化合物被干燥，装入合适的火箭装置并瞬间加热时，水合矿物水合物瞬间蒸发成可用于推进火箭的蒸汽。 所得的未水合矿物盐被夹带在蒸汽中。 当与大气接触时，蒸汽冷凝成精细的水滴，其中夹带的盐溶解并电离。 由于其高导电性，由这种推进剂留下的所产生的电解质蒸气轨迹特别适用于电气桥，通过该电桥可以将雷电从敏感物体上移除并方便接地。

公开(公告)号：US4733319A

公开(公告)日：1988-03-22

申请号：US789562

申请日：1985-10-21

申请人： Shigehiro Yoshida ,  Kazuhiro Yokouchi ,  Yuichi Wada ,  Masao Tomita ,  Kiyoshi Fukuda

发明人： Shigehiro Yoshida ,  Kazuhiro Yokouchi ,  Yuichi Wada ,  Masao Tomita ,  Kiyoshi Fukuda

IPC分类号： H02H3/08 ,  H02H3/02 ,  H02H9/02

CPC分类号： H02H3/025

摘要： A high-speed current limiting circuit breaker comprises a self-recovery type current limiting element for limiting a fault current, a parallel resistance connected in parallel with the self-recovery type current limiting element and a circuit breaker connected in series with the self-recovery type current limiting element, a fault voltage detector for detecting the voltage generated on the parallel resistance and thereby driving an electromagnetic repulsion coil for breaking the circuit breaker.

摘要翻译： 高速限流断路器包括用于限制故障电流的自恢复型限流元件，与自恢复型限流元件并联连接的并联电阻和与自恢复系列串联连接的断路器 型电流限制元件，用于检测在并联电阻上产生的电压并由此驱动用于断开断路器的电磁排斥线圈的故障电压检测器。

公开(公告)号：US4566401A

公开(公告)日：1986-01-28

申请号：US526633

申请日：1983-08-26

申请人： Masao Tomita

发明人： Masao Tomita

IPC分类号： H01T1/12 ,  G01D3/04

CPC分类号： H01T1/12 ,  Y10S116/33

摘要： An improved dynamic current interruption-type flashover indicator responsive to lightning strikes for releasing from the tip of arc horns located on power transmission towers and for interrupting the resulting dynamic current. The present invention utilizes a uniquely designed propellant having a formed center hole extending the longitudinal length of the propellant and containing therein a fuse wire extending from a separation plate at one end and engaging an inserted pin at the other end. When lightning strikes, the resulting arc is lead into and throughout the formed center hole by the fuse wire, the fuse wire melts and the temperature of the arc causes the propellant to vaporize uniformly into steam and the resulting gaseous force causes the indicator to become rocket-like and to suddenly leave the tip of the arc horn. The resultant vapor trail of the flashover indicator being of high conductivity leads the dynamic current away from the transmission tower in order to substantially cut down on the dynamic current.

摘要翻译： 改进的动态电流中断型闪络指示器，其响应于雷击从位于输电塔上的电弧喇叭尖端释放并中断所得到的动态电流。 本发明使用独特设计的推进剂，其具有形成的中心孔，该中心孔延伸推进剂的纵向长度并且在其中容纳从一端的分离板延伸的熔丝，并在另一端接合插入的销。 当雷击时，所产生的电弧通过保险丝导入整个形成的中心孔，熔丝熔化，电弧温度使得推进剂均匀蒸发成蒸汽，由此产生的气体力使指示器变成火箭 并且突然离开弧角的尖端。 由此导致的高电导率的闪络指示器的蒸气轨迹导致动态电流远离传输塔，以便基本上减小动态电流。

公开(公告)号：US5649048A

公开(公告)日：1997-07-15

申请号：US262374

申请日：1994-06-20

申请人： Masao Tomita ,  Takuya Otsuki ,  Sakon Nagasaki

发明人： Masao Tomita ,  Takuya Otsuki ,  Sakon Nagasaki

IPC分类号： H04N9/79 ,  H04N5/91 ,  H04N7/01

CPC分类号： H04N9/79 ,  H04N9/7925

摘要： A video tape recorder is provided which is capable of handling plural television standards. The tape recorder includes a video signal processing unit for recording and reproducing video signals selectively in plural television standards, a television standards converter for performing a conversion operation by converting a video signal in a first one of the television standards into a video signal of a second one of the television standards, and a convert control unit for controlling the conversion operation of the television standards converter to operate in (1) a recording mode to convert an input video signal in a first one of the television standards into a second one of the television standards and to provide the converted input video signal to the processing unit for recording and (2) a reproducing mode to convert a reproduced video signal, received from the processing unit, in a first one of the television standards into a second one of the television standards and to output the converted reproduced video signal.

摘要翻译： 提供能够处理多个电视标准的录像机。 磁带录像机包括：视频信号处理单元，用于以多个电视标准选择性地记录和再现视频信号;电视标准转换器，用于通过将第一个电视标准中的视频信号转换为第二个视频信号来执行转换操作 电视标准之一，以及转换控制单元，用于控制电视标准转换器的转换操作，以（1）将第一个电视标准中的输入视频信号转换为第一个电视标准的记录模式 并将转换的输入视频信号提供给用于记录的处理单元，以及（2）再现模式，用于将从处理单元接收的再现的视频信号转换成第一个电视标准中的第二个 并且输出转换的再现视频信号。

公开(公告)号：US4827342A

公开(公告)日：1989-05-02

申请号：US102243

申请日：1987-09-24

申请人： Haruo Ohta ,  Masao Tomita

发明人： Haruo Ohta ,  Masao Tomita

IPC分类号： H04N5/20 ,  H04M5/20 ,  H04N5/21 ,  H04N5/213

CPC分类号： H04N5/21

摘要： A video signal processing apparatus includes a digital vertical filter for passing a signal in a specific vertical high frequency band of a digitized input luminance signal and a digital nonlinear processing circuit having a nonlinear input-output characteristic for nonlinearly processing the signal from the vertical filter so that one of a luminance signal component and a noise component of the signal from the vertical filter is suppressed while the other is maintained as is or so that the luminance signal component is emphasized while the noise component is maintained as is or suppressed. The apparatus also includes an arithmetic operation circuit for arithmetically synthesizing the digitized input luminance signal and an output signal of the nonlinear processing circuit so that the noise component is canceled or the luminance signal is increased, thereby obtaining a digitized luminance signal having an improved signal-to-noise ratio in the specific vertical high frequency band.

摘要翻译： 视频信号处理装置包括用于使数字化输入亮度信号的特定垂直高频带中的信号通过的数字垂直滤波器和具有用于非线性处理来自垂直滤波器的信号的非线性输入输出特性的数字非线性处理电路， 抑制来自垂直滤波器的信号的亮度信号分量和噪声分量中的一个，同时保持另一个亮度信号分量和噪声分量，或者使亮度信号分量被强调，同时噪声分量保持原样或被抑制。 该装置还包括用于对数字化输入亮度信号和非线性处理电路的输出信号进行算术合成的算术运算电路，使得噪声分量被消除或亮度信号增加，从而获得具有改善的信号 - 特定垂直高频段的信噪比。

公开(公告)号：US4677487A

公开(公告)日：1987-06-30

申请号：US662454

申请日：1984-10-17

申请人： Masao Tomita ,  Akio Hashima

发明人： Masao Tomita ,  Akio Hashima

IPC分类号： H04N5/92 ,  H04N5/911 ,  H04N5/94

CPC分类号： H04N5/94 ,  H04N5/911

摘要： A digital noise reducing apparatus improves the signal to noise ratio (S/N) of a luminance signal of a video signal reproduced from a recording medium. This apparatus includes: an analog to digital (A/D) converting circuit for converting the luminance signal into a digital luminance signal; a digital delay circuit for delaying the digital luminance signal by one horizontal scanning period (1H); a first calculating circuit for calculating the difference between the digital luminance signal and the delayed digital luminance signal; a limiting circuit for limiting the amplitude of an output signal of the first calculating circuit, and a second calculating circuit for subtracting a signal output which is from the limiting circuit from the digital luminance signal. The apparatus operates to reduce noise at the line offset frequency of the luminance signal.

摘要翻译： 数字降噪装置提高从记录介质再现的视频信号的亮度信号的信噪比（S / N）。 该装置包括：模拟数字（A / D）转换电路，用于将亮度信号转换为数字亮度信号; 数字延迟电路，用于将数字亮度信号延迟一个水平扫描周期（1H）; 用于计算数字亮度信号和延迟的数字亮度信号之间的差的第一计算电路; 用于限制第一计算电路的输出信号的幅度的限制电路和用于从数字亮度信号中减去来自限制电路的信号输出的第二计算电路。 该装置用于降低亮度信号的线偏移频率处的噪声。