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    • 7. 发明授权
    • Image information signal transmitting system
    • 图像信息传输系统
    • US5023716A
    • 1991-06-11
    • US608634
    • 1990-10-31
    • Tadayoshi NakayamaHisashi IshikawaSusumu KozukiKoji TakahashiKatsuji YoshimuraKenichi NagasawaTomohiko Sasatani
    • Tadayoshi NakayamaHisashi IshikawaSusumu KozukiKoji TakahashiKatsuji YoshimuraKenichi NagasawaTomohiko Sasatani
    • H04N7/12H04N7/26H04N7/46
    • H04N7/125H04N19/59H04N19/98
    • An image information signal transmitting system of this invention is a system which divides an image information signal for one picture constituted by a set of picture element data into blocks each constituted by a predetermined quantity of picture element data, transmits the picture element data on each of the blocks on the basis of a mode selected from among a plurality of transmission modes each of which allows a different quantity of picture element data to be transmitted and a mode information signal indicative of the transmission mode of each of the blocks, and restores the picture element data on each of the blocks to the original image information signal. The system is arranged to store the transmitted picture element data, read out the stored picture element data at a data readout rate of one kind which is selected from among a plurality of different data readout rates and which corresponds to the kind of transmission mode indicated by the transmitted mode information signal, and implement a data restoring processing on the picture element data thus read on the basis of a data restoring processing of one kind which is selected from among a plurality of different data restoring processings and which corresponds to the kind of transmission mode indicated by the transmitted mode information signal. With this arrangement, it is possible to realize reductions in the size, weight and cost of the apparatus without deteriorating an image information signal to be transmitted.
    • 本发明的图像信息信号发送系统是将由一组图像元素数据构成的一幅图像的图像信息信号分割为由预定量的图像元素数据构成的块的系统, 基于从多个传输模式中选择的模式,每个传输模式允许发送不同数量的图像元素数据,以及表示每个块的传输模式的模式信息信号,并恢复图像 每个块上的元素数据到原始图像信息信号。 该系统设置为存储所发送的图像元素数据,以从多个不同数据读出速率中选择的一种数据读出速率读出存储的图像元素数据,并且其对应于由 发送模式信息信号,并且基于从多个不同的数据恢复处理中选择并且对应于传输的种类的一种的数据恢复处理,对这样读取的图像元素数据执行数据恢复处理 模式由发送模式信息信号指示。 利用这种布置,可以实现装置的尺寸,重量和成本的降低,而不会使要发送的图像信息信号恶化。
    • 10. 发明授权
    • Video signal recording and/or reproducing apparatus
    • 视频信号记录和/或再现装置
    • US4901119A
    • 1990-02-13
    • US273735
    • 1988-11-15
    • Katsuji YoshimuraToshiyuki MasuiChikara SatoTadayoshi Nakayama
    • Katsuji YoshimuraToshiyuki MasuiChikara SatoTadayoshi Nakayama
    • H04N5/92G11B20/10H04N9/808H04N9/877
    • H04N9/808H04N9/877
    • A video signal recording and/or reproduction apparatus in which an analog video signal from the inlet is digitized to form video data, then the video data are stored in a memory means for a time, then the stored video data are read out from the memory means before they are recorded on a recording medium. When reproducing the recorded video data from the recording medium, the reproduced video data are stored in a memory means for a time, then the stored video data are read out from the memory means, then the analog video signal is restored from the read video data, and then the analog video signal is produced at the output of the apparatus. Further, by taking the synchronism of the write and read control signals of different frequency for either of the memory means of the recording and reproducing systems, it is made possible to assure accurate and reliable conversion between the analog and digital forms of the video signals when either in the record or in the reproduction mode.
    • 一种视频信号记录和/或再现装置,其中来自入口的模拟视频信号被数字化以形成视频数据,然后将视频数据存储在存储装置中一段时间​​,然后将所存储的视频数据从存储器读出 在将它们记录在记录介质上之前的装置。 当从记录介质再现记录的视频数据时,将再现的视频数据存储在存储装置中一段时间​​,然后从存储装置中读出存储的视频数据,然后从读取的视频数据中恢复模拟视频信号 ,然后在设备的输出处产生模拟视频信号。 此外,通过对记录和再现系统的存储装置中的任一个采取不同频率的写入和读取控制信号的同步,可以确保视频信号的模拟和数字形式之间的准确和可靠的转换, 无论是在记录还是在再现模式。