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    • 2. 发明授权
    • Digital signal recording and reproduction apparatus suitable for recording and reproducing a compressed video signal
    • 适于记录和再现压缩视频信号的数字信号记录和再现装置
    • US06519411B1
    • 2003-02-11
    • US09690999
    • 2000-10-18
    • Naozumi SugimuraHiroo Okamoto
    • Naozumi SugimuraHiroo Okamoto
    • H04N576
    • G11B27/107G11B27/3027G11B27/3063G11B2220/90H04N9/8042H04N9/888
    • A digital signal processing apparatus including a time stamp generator generating a reference time having a same format as a first time stamp added to each packet of an inputted digital signal, a comparator comparing the first time stamp added to each packet of the inputted digital signal with the reference time, a time stamp converter converting the first time stamp added to each packet of the inputted digital signal into a second time stamp having a different format than the first time stamp, and an output circuit outputting an outputted digital signal in the form of a plurality of packets having the second time stamp converted by the time stamp converter added to each packet when the first time stamp of each packet of the inputted digital signal coincides with the reference time.
    • 一种数字信号处理装置,包括:时间戳发生器,生成与输入的数字信号的每个分组相加的与第一时间戳相同的格式的参考时间;比较将添加到输入的数字信号的每个分组的第一时间标记与 参考时间,将添加到所输入的数字信号的每个分组的第一时间戳转换为具有与第一时间戳不同的格式的第二时间戳的时间戳转换器,以及输出电路,其输出数字信号的形式为 当输入的数字信号的每个分组的第一时间标记与参考时间一致时,具有由添加到每个分组的时间戳转换器转换的第二时间戳的多个分组。
    • 5. 发明授权
    • Digital signal recording and reproduction apparatus suitable for recording and reproducing a compressed video signal
    • 适于记录和再现压缩视频信号的数字信号记录和再现装置
    • US07450816B2
    • 2008-11-11
    • US10347588
    • 2003-01-22
    • Naozumi SugimuraHiroo Okamoto
    • Naozumi SugimuraHiroo Okamoto
    • H04N5/91
    • G11B27/107G11B27/3027G11B27/3063G11B2220/90H04N9/8042H04N9/888
    • A digital signal recording apparatus for recording in blocks on a recording medium an input digital signal in the form of a plurality of input packets. Each of the input packets has a predetermined number of bytes. A first time stamp has been added to each of the input packets in advance for indicating a time of transmission of the input packet. A time stamp generator generates a second time stamp having a different format than the first time stamp added to each of the input packets in advance. A time stamp adding circuit removes the first time stamp added to each of the input packets in advance and adds the second time stamp to each of the input packets. A recording signal processor generates a recording signal in blocks from the input digital signal with the second time stamp added to each of the input packets.
    • 一种数字信号记录装置,用于在记录介质上以块的形式记录多个输入分组形式的输入数字信号。 每个输入分组具有预定数量的字节。 预先向每个输入分组中添加了第一时间戳以指示输入分组的发送时间。 时间戳发生器预先生成具有与添加到每个输入分组的第一时间戳不同的格式的第二时间戳。 时间戳添加电路预先删除添加到每个输入分组的第一时间戳,并将第二时间戳添加到每个输入分组。 记录信号处理器从输入数字信号以块为单位生成记录信号,其中第二时间戳添加到每个输入分组。
    • 7. 发明授权
    • Digital signal recording and reproduction apparatus suitable for recording and reproducing a compressed video signal
    • 适于记录和再现压缩视频信号的数字信号记录和再现装置
    • US06175683B1
    • 2001-01-16
    • US08810092
    • 1997-03-04
    • Naozumi SugimuraHiroo Okamoto
    • Naozumi SugimuraHiroo Okamoto
    • H04N576
    • G11B27/107G11B27/3027G11B27/3063G11B2220/90H04N9/8042H04N9/888
    • A digital signal recording apparatus for recording a digital signal on a recording medium and a digital signal reproduction apparatus for reproducing the digital signal from the recording medium, wherein the digital signal contains a plurality of packets each having a plurality of bytes and a time stamp added thereto indicating the time of transmission of each packet. The recording apparatus comprises a circuit for generating a reference signal synchronous with an input digital signal, a circuit for generating a time stamp based on the reference signal, a circuit for adding the time stamp generated by the time stamp generating circuit to the input digital signal in place of the time stamp originally added to the input digital signal, a recording signal processing circuit for generating a recording signal in block form from the digital signal, and a circuit for recording the recording signal on the recording medium. The reproduction apparatus comprises an oscillator for generating a clock providing a reference for the operation of the reproduction apparatus, a circuit for reproducing a signal from the recording medium, and a time stamp conversion circuit for converting the time stamp added to the packet of the signal reproduced from the recording medium into a predetermined time stamp or removing such added time stamp.
    • 一种用于在记录介质上记录数字信号的数字信号记录装置和用于从记录介质再现数字信号的数字信号再现装置,其中数字信号包含多个包含多个字节和添加时间戳的数据包 其中指示每个分组的传输时间。 记录装置包括用于产生与输入数字信号同步的参考信号的电路,用于基于参考信号产生时间标记的电路,用于将由时间戳产生电路产生的时间戳添加到输入数字信号的电路 代替最初添加到输入数字信号的时间标记,记录信号处理电路用于从数字信号产生块形式的记录信号,以及用于在记录介质上记录记录信号的电路。 再现装置包括:振荡器,用于产生提供用于再现装置的操作的参考的时钟,用于从记录介质再现信号的电路;以及时间戳转换电路,用于转换附加到信号包的时间戳 从记录介质再现为预定的时间戳或去除这样的添加的时间戳。