会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 11. 发明公开
    • Video signal reproducing method and apparatus
    • 视频信号再现方法和设备
    • EP0664654A2
    • 1995-07-26
    • EP95300410.8
    • 1995-01-24
    • VICTOR COMPANY OF JAPAN, LTD.
    • Shibayama, KenjiSuzuki, Koji
    • H04N9/87H04N9/797
    • H04N9/877H04N5/78266H04N5/783H04N9/7973H04N9/81
    • A first reproduction signal is reproduced by use of a first pair of magnetic heads having first and second azimuth angles and arranged around a rotary drum at two opposing angular positions 180 degrees away from each other, respectively. A second reproduction signal is reproduced by use of a second pair of magnetic heads having first and second azimuth angles and arranged around the rotary drum at two opposing angular positions 180 degrees away from each other, respectively. A video signal is reproduced based on the first and second reproduction signals. The magnetic tape travel speed is set to a value (2n + 1 ± m/M) times higher than that in recording, where n is an integer of 0 or more; m and M are a natural number, respectively; T ≧ 12/(P + Q) (T: an integer) when m/M = 2k/T; and P > O, Q > O.
    • 第一再现信号通过使用具有第一和第二方位角的第一对磁头来再现,并分别在彼此相距180度的两个相对的角度位置处围绕旋转鼓布置。 第二再现信号通过使用具有第一和第二方位角的第二对磁头而被再现,并且分别在彼此相隔180度的两个相对的角度位置处围绕旋转鼓布置。 基于第一和第二再现信号再现视频信号。 磁带行进速度设定为比记录时高的值(2n + 1±m / M)倍,其中n是0或更大的整数; m和M分别是自然数; 当m / M = 2k / T时,T≥12/(P + Q)(T:整数) 并且P> O,Q> O.
    • 12. 发明公开
    • Video signal recording apparatus
    • 视频信号记录装置
    • EP0487182A3
    • 1993-03-17
    • EP91306211.3
    • 1991-07-09
    • SHARP KABUSHIKI KAISHA
    • Adachi, Makoto
    • H04N9/797
    • H04N9/7973Y10S348/91
    • A video signal recording apparatus is provided with the first and second channels for transmitting an input video signal. The first channel has a line memory for conducting a 1H delay on data and a timebase-extension use line memory for conducting time base extension on the data with the 1 H delay. The data subjected to the time base extension undergoes D/A conversion to make an output of the first channel. On the other hand, the second channel does not have a line memory for a 1 H delay, and the video signal without a delay is subjected to time base extension and undergoes D/A conversion to make an output of the second channel. In the arrangement, it is allowed to reverse an arrangement of odd lines and even lines respectively contained in adjoining two frames in each channel such that in a certain frame, odd lines of the input video signal are transmitted through the first channel with even lines through the second channel, and in the next frame, even lines are transmitted through the first channel with odd lines through the second channel. Thus, influences due to the difference of circuit characteristics is averaged on the reproduced picture, and it is avoided that the influence is perceived as unevenness of color or brightness.
    • 视频信号记录装置具有用于传输输入视频信号的第一和第二通道。 第一个通道具有用于对数据执行1H延迟的行存储器和一个时基扩展使用行存储器,用于对具有1 H延迟的数据进行时基扩展。 受时基扩展处理的数据经历D / A转换以作为第一通道的输出。 另一方面,第二通道没有用于1 H延迟的行存储器,并且没有延迟的视频信号受到时间基础扩展并且经历D / A转换以进行第二通道的输出。 在该配置中,允许反转每个通道中分别包含在相邻两帧中的奇数行和偶数行的排列,使得在某个帧中,输入视频信号的奇数行通过第一通道以偶数行 第二通道,并且在下一帧中,偶数行通过第一通道以奇数行传输通过第二通道。 因此,由于电路特性的不同导致的影响在再现的图像上被平均,并且避免了影响被认为是颜色或亮度的不均匀性。