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    • 5. 发明授权
    • Digital signal recording and reproducing apparatus
    • 数字信号记录和再现装置
    • US6115537A
    • 2000-09-05
    • US389954
    • 1995-02-17
    • Masazumi YamadaYukio KuranoKenji KunitakeYuzo MurakamiAkira IketaniChiyoko MatsumiYasuo HamamotoAkihiro Takeuchi
    • Masazumi YamadaYukio KuranoKenji KunitakeYuzo MurakamiAkira IketaniChiyoko MatsumiYasuo HamamotoAkihiro Takeuchi
    • H04N5/00H04N5/7826H04N5/783H04N7/52H04N9/804H04N9/82H04N5/782H04N5/917
    • H04N21/4147H04N21/236H04N21/434H04N9/8042H04N5/78263H04N5/783H04N9/8227H04N9/8233
    • In a digital signal recording and reproducing apparatus, digital input data is transmitted in a transmission packet format and is recorded in a recording packet format. In a recording stage, an auxiliary signal generator (3) generates an auxiliary signal for special reproduction in the transmission packet format, and the digital and auxiliary signals are converted into respective recording packets by means of recording signal converters (5, 6). Recording means (9, 10) performs a specific recording process on the recording packets and an identification signal for identifying between the recording packets of the digital signal and of the auxiliary signal. While in a reproducing stage, reproduction signal processing means (14, 15) performs a specific reproduction process on the reproduction signal to thereby reconstruct the recording packets and the identification signal. A packet selector (16) detects the reconstructed identification signal to determine whether the recording packet is of the digital signal or of the auxiliary signal, and then the digital signal or auxiliary signal is reconstructed by a signal reconstructor (17) in the transmission format using the selected recording packet, whereby a high quality image output conforming to the transmission format used in the normal reproductions mode is also obtained during the special reproduction modes.
    • 在数字信号记录和再现装置中,数字输入数据以传输分组格式发送,以记录分组格式记录。 在记录阶段,辅助信号发生器(3)以发送分组格式生成用于特殊再现的辅助信号,并通过记录信号转换器(5,6)将数字和辅助信号转换成各自的记录分组。 记录装置(9,10)对记录包执行特定记录处理,以及用于识别数字信号和辅助信号的记录包之间的识别信号。 在再现阶段,再现信号处理装置(14,15)对再现信号执行特定的再现处理,从而重建记录包和识别信号。 分组选择器(16)检测重建的识别信号以确定记录分组是数字信号还是辅助信号,然后数字信号或辅助信号由传输格式的信号重构器(17)重建,使用 所选择的记录包,由此在特殊再现模式期间也获得符合正常再现模式中使用的传输格式的高质量图像输出。
    • 6. 发明授权
    • File reproducing apparatus and file reproducing method
    • 文件再现装置和文件再现方法
    • US07359623B2
    • 2008-04-15
    • US10365528
    • 2003-02-13
    • Yuzo Murakami
    • Yuzo Murakami
    • H04N5/91
    • G11B20/1251G11B27/105G11B27/329Y10S707/99931
    • A file reproducing apparatus for reproducing files recorded on a recording medium by using a FAT (File Allocation Table) file system, which includes a cluster table which associates offset positions indicating the distances from the head of the file set at the predetermined offset intervals with cluster numbers indicating locations of the files recorded on the recording medium in which the data at the corresponding offset positions are stored. During a reproduction operation in a reverse direction which proceeds from the end of the file toward the head, the location of the data to be read is determined with reference to the cluster table.
    • 一种文件再现装置,用于通过使用FAT(文件分配表)文件系统来再现记录在记录介质上的文件,该文件系统包括将表示与以预定偏移间隔设置的文件的头部的距离的偏移位置相关联的偏移位置与簇 指示记录在其中存储相应偏移位置的数据的记录介质上的文件的位置的数字。 在从文件结束朝向头部的相反方向的再现操作期间,参考该集群表确定要读取的数据的位置。