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    • 4. 发明授权
    • Information processing apparatus and method as well as providing medium
    • 信息处理设备和方法以及提供介质
    • US06529679B1
    • 2003-03-04
    • US09325183
    • 1999-06-03
    • Taro SuitoMasashi OhtaToshimichi HamadaKoichi Chotoku
    • Taro SuitoMasashi OhtaToshimichi HamadaKoichi Chotoku
    • H04N591
    • H04N5/85G11B27/105G11B27/11G11B2220/20G11B2220/65H04N9/8042
    • The invention provides an information processing apparatus and method as well as a providing medium by which a period for reproduction of reproduction data at fixed intervals can be calculated to reproduce the reproduction data in a fixed period. First, a TOC of reproduction data is read out and a frame number of the reproduction data is calculated. Then, a readout time within which the reproduction data for one frame are read out from a recording medium is calculated. Thereafter, a sum total of reading position movement times when the reproduction data for L frames are read out is calculated. Then, a sum total of reproduction processing waiting times when the reproduction data for the L frames are read out is calculated. Then, the sum totals of the readout times, reading position movement times and reproduction processing waiting times are added to calculate a total time. Finally, a reproduction data transfer period is calculated based on the total time, and reproduction of the reproduction data is performed at time intervals corresponding to the reproduction data transfer period.
    • 本发明提供了一种信息处理装置和方法以及提供媒体,通过该媒体可以计算用于以固定间隔再现再现数据的周期,以在固定周期内再现再现数据。 首先,读出再现数据的TOC,并计算再现数据的帧号。 然后,计算从记录介质读出一帧再现数据的读出时间。 此后,计算读出L帧的再现数据时的读取位置移动时间的总和。 然后,计算读出L帧的再现数据时的再现处理等待时间的总和。 然后,添加读出时间,读取位置移动时间和再现处理等待时间的总和,以计算总时间。 最后,基于总时间计算再现数据传送周期,并且在与再现数据传送周期相对应的时间间隔执行再现数据的再现。
    • 8. 发明授权
    • Signal reproducing method & apparatus, signal recording/reproducing method and apparatus and signal recording medium
    • 信号再现方法和装置,信号记录/再现方法和装置以及信号记录介质
    • US07133593B2
    • 2006-11-07
    • US11085649
    • 2005-03-21
    • Takao TakahashiMasashi OhtaToshiya AkibaMasami TomitaTaro Suito
    • Takao TakahashiMasashi OhtaToshiya AkibaMasami TomitaTaro Suito
    • H04N5/93
    • H04N9/8045G11B20/10527G11B27/032G11B27/034G11B27/036G11B27/105G11B27/11G11B27/329G11B2020/10592G11B2020/10916G11B2220/20G11B2220/216G11B2220/2525G11B2220/65G11B2220/90H04N5/783
    • By reducing the number of seek operations in an operation to play back a signal from a recording medium, the amount of data temporarily stored in a read buffer memory employed in a signal recording/playback apparatus is large enough to be output as a playback signal during a seek operation, allowing a continuous playback operation to be carried out. In order to reduce the number of seek operations, a signal is always recorded onto the recording medium in continuous free areas each having a size equal to or larger than a predetermined recording/playback time length which is typically set at 1 minute. If it is necessary to insert an additional signal having a length smaller than the predetermined recording/playback time length into a point of insertion in an area already occupied by an existing signal, a continuous free area with a size equal to or larger than the predetermined recording/playback time length is newly allocated to the additional signal. The additional signal is then recorded in the free area instead of being inserted into the point of insertion. Since the free area is larger in size than the length of the additional signal, the rest of the free area is filled up with a portion of the existing signal adjacent to the point of insertion.
    • 通过减少用于从记录介质播放信号的操作中的寻道操作次数,临时存储在信号记录/重放装置中使用的读缓冲存储器中的数据量足够大以作为重放信号被输出 搜索操作,允许执行连续播放操作。 为了减少搜索操作的数量,信号总是被记录在连续空闲区域中的记录介质上,每个区域的大小等于或大于通常设置为1分钟的预定记录/重放时间长度。 如果需要将具有小于预定记录/重放时间长度的长度的附加信号插入到已经被现有信号占据的区域中的插入点中,则具有等于或大于预定记录/重放时间长度的尺寸的连续空闲区域 记录/播放时间长度被新分配给附加信号。 然后将附加信号记录在空闲区域中,而不是插入插入点。 由于空闲区域的尺寸大于附加信号的长度,所以剩余的空闲区域被填充有与插入点相邻的现有信号的一部分。