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    • 1. 发明授权
    • Clock generator
    • 时钟发生器
    • US5528307A
    • 1996-06-18
    • US395296
    • 1995-02-27
    • Mitsuru OwadaShinichi YamashitaMakoto Gohda
    • Mitsuru OwadaShinichi YamashitaMakoto Gohda
    • H04N9/896H04N5/95
    • H04N9/896
    • An apparatus for correcting a time base of a video signal generates a clock which is phase-synchronized with a sync. signal of the video signal and has the same frequency. In a special reproducing mode, the apparatus switches an output level of a phase comparator, which phase-compares the sync. signal and the clock to a predetermined level, which is applied to a controlled oscillator and resets a frequency divider which frequency-divides the output of the controlled oscillator, in accordance with the sync. signal to produce the video signal which can be visually recognized even in the special reproducing mode. The apparatus samples and holds the output level of the phase comparator when the video signal drops out and resets the frequency divider which produces the clock by frequency-dividing the output of the controlled oscillator, when the dropout is recovered so that a video signal of high quality is produced immediately after the recovery of the dropout of the video signal.
    • 用于校正视频信号的时基的装置产生与同步相位同步的时钟。 视频信号的信号并具有相同的频率。 在特殊再现模式中,该装置切换相位比较器的输出电平,该相位比较器进行相位比较同步。 信号和时钟到预定电平,其被施加到受控振荡器并且根据同步来复位频率划分受控振荡器的输出的分频器。 信号以产生即使在特殊再现模式下也可视觉识别的视频信号。 当视频信号丢失时,该装置采样并保持相位比较器的输出电平,并且通过对受控振荡器的输出进行分频来复位产生时钟的分频器,当压降恢复时,视频信号为高电平 在恢复视频信号的丢失之后立即产生质量。
    • 4. 发明授权
    • Signal reproducing apparatus having waveform equalizing function
    • 具有波形均衡功能的信号再生装置
    • US5663844A
    • 1997-09-02
    • US156408
    • 1993-11-19
    • Makoto GohdaShinichi Yamashita
    • Makoto GohdaShinichi Yamashita
    • G11B5/035G11B20/06H04L25/03
    • H04L25/03019G11B20/06G11B5/035
    • A circuit is provided for emphasizing or suppressing both a frequency corresponding to an upper sideband and a frequency corresponding to a lower sideband with respect to a frequency corresponding to the carrier of a frequency-modulated signal in equalizing the frequency-modulated signal reproduced from the recording medium. With this arrangement, it is possible to effectively compensate for the nonlinearity of a magnetic recording and reproducing system even in the case of a wide deviation. Also, the envelope levels of the portions of a frequency-modulated signal which are formed by frequency-modulating portions of a signal whose levels differ from each other, are extracted to adjust the equalizing characteristics of the equalizing circuit in accordance with the difference between the levels, whereby variations in the characteristics of a reproduction equalizing circuit due to variations with time can be appropriately compensated for.
    • 提供一种电路,用于相对于与频率调制信号的载波相对应的频率来强调或抑制对应于上边带的频率和对应于下边带的频率,以均衡从记录再现的频率调制信号 中。 利用这种布置,即使在宽偏差的情况下,也可以有效地补偿磁记录和再现系统的非线性。 此外,提取通过其电平彼此不同的信号的频率调制部分形成的频率调制信号的部分的包络电平,以根据所述均衡电路的差异来调整均衡电路的均衡特性 电平,由此可以适当地补偿由于随时间变化的再现均衡电路的特性的变化。
    • 5. 发明授权
    • Time base correcting device
    • 时基校正装置
    • US5335077A
    • 1994-08-02
    • US906267
    • 1992-06-26
    • Shinichi YamashitaShingo IkedaMakoto Gohda
    • Shinichi YamashitaShingo IkedaMakoto Gohda
    • H04N9/896A04N9/89
    • H04N9/896
    • A time base correcting device inputs a video signal including a sync. signal and a burst signal, produces an error signal representing a phase difference between a clock signal synchronized with the sync. signal and the burst signal, writes the video signal into the memory in synchronism with the clock signal having a phase thereof adjusted in accordance with the error signal, produces an interpolation signal to interpolate a plurality of adjacent error signals along a time base and controls the readout from the memory by the error signals and the interpolation signal. In this manner, it attains time base correction, particularly velocity error correction with high accuracy.
    • 时基校正装置输入包括同步的视频信号。 信号和突发信号产生表示与同步同步的时钟信号之间的相位差的误差信号。 信号和突发信号,将视频信号与具有根据误差信号调整的相位的时钟信号同步地写入存储器,产生内插信号,以沿着时基内插多个相邻的误差信号,并且控制 通过误差信号和插值信号从存储器读出。 以这种方式,可以实现时基校正,特别是高精度的速度误差校正。
    • 8. 发明授权
    • Image processing apparatus
    • 图像处理装置
    • US08750685B2
    • 2014-06-10
    • US12357562
    • 2009-01-22
    • Hiroto OkaMakoto Gohda
    • Hiroto OkaMakoto Gohda
    • G11B27/00
    • G11B27/34G11B27/034G11B2220/213G11B2220/2545G11B2220/2562
    • An image processing apparatus includes: a display control unit for displaying a story board on a display device, the story board displaying a plurality of representative images corresponding to a plurality of image clips in a reproduction order and displaying an audio lane showing a plurality of audio clips in a reproduction order in parallel to the plurality of representative images; and a change unit for changing a reproduction order of the plurality of image clips and audio clips by using the story board displayed on the display device, wherein the display control unit displays a border of the audio clip on the audio lane at one of a first predetermined position and a second predetermined position corresponding respectively to a left end and a right end of each of the plurality of representative images.
    • 一种图像处理装置包括:显示控制单元,用于在显示装置上显示故事板,所述故事板以再现顺序显示与多个图像剪辑对应的多个代表图像,并且显示表示多个音频的音频通道 以与多个代表图像平行的再现顺序剪辑; 以及改变单元,用于通过使用显示在显示装置上的故事板来改变多个图像剪辑和音频剪辑的再现顺序,其中显示控制单元在音频通道上显示音频剪辑的边界,其中第一 预定位置和分别对应于多个代表图像中的每一个的左端和右端的第二预定位置。