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    • 1. 发明授权
    • Method and apparatus for defining entry point in a data stream
    • 用于定义数据流中入口点的方法和装置
    • US08620137B2
    • 2013-12-31
    • US12495919
    • 2009-07-01
    • Johannes Arnoldus Cornelis BernsenWilhelmus Franciscus Johannes Fontijn
    • Johannes Arnoldus Cornelis BernsenWilhelmus Franciscus Johannes Fontijn
    • H04N9/80
    • G11B27/329G11B27/034G11B27/105G11B27/28
    • The invention relates to a method and an apparatus for defining entry points for a data stream, in particular a stream of audiovisual information. Entry points in the stream are defined at a predetermined interval. This may be a time interval, a byte interval or any other interval. It is an object of the invention to provide an entry point table having a limited size. This object is achieved by increasing the interval between entry points if the table exceeds a predetermined size. This size may be defined in bytes, in the number of entry points or even in the number of sub-tables. After redefinition of the interval between entry points, entry points are redefined. The invention also relates to an apparatus for defining the entry points and to a record carrier with a data stream incorporating entry points defined by the method according to the invention.
    • 本发明涉及一种用于定义数据流,特别是视听信息流的入口点的方法和装置。 以预定间隔定义流中的入口点。 这可以是时间间隔,字节间隔或任何其他间隔。 本发明的目的是提供一种具有有限尺寸的入口点表。 如果表超过预定大小,则可以通过增加入口点之间的间隔来实现此目的。 这个大小可以以字节,进入点数量或子表数量来定义。 重新定义入口点之间的间隔后,重新定义入口点。 本发明还涉及一种用于定义入口点的装置和具有包含由根据本发明的方法限定的入口点的数据流的记录载体。
    • 7. 发明申请
    • ARRANGEMENT FOR COMPARING CONTENT IDENTIFIERS OF FILES
    • 比较文件的内容标识符的安排
    • US20100057795A1
    • 2010-03-04
    • US12515970
    • 2007-11-27
    • Wilhelmus Franciscus Johannes FontijnYuechen QianAlexander SinitsynJozef Pieter Van Gassel
    • Wilhelmus Franciscus Johannes FontijnYuechen QianAlexander SinitsynJozef Pieter Van Gassel
    • G06F17/30
    • G06F17/30038G06F17/30743G06F17/30784
    • Arrangements (1) comprising comparators (11) for comparing content identifiers with each other, such as audio/video fingerprints, unique identifiers, hash algorithms, cyclic redundancy checks, titles, names, durations, sizes, album names and artist names of files such as audio/video/data files, are provided with selectors (12) for selecting, 5 from groups of content identifiers, in dependence of values of parameters of the content identifiers, sub-groups of content identifiers, to increase flexibilities. Calculators (13) calculate functions of the values of the parameters and further comparators (14) compare the functions with thresholds. Content identifiers may be defined by cost and accuracy parameters. Then, calculators (13) calculate first functions of the values of the cost 10 parameters and calculate second functions of the values of the accuracy parameters and further comparators (14) compare the first functions with first thresholds and compare the second functions with second thresholds.
    • 诸如音频/视频指纹,唯一标识符,散列算法,循环冗余校验,标题,名称,持续时间,大小,专辑名称和文件名称等的比较器(11)的比较器(11) 作为音频/视频/数据文件,提供有选择器(12),用于根据内容标识符的参数的值,内容标识符的子组,从内容标识符的组中选择5,以增加灵活性。 计算器(13)计算参数值的函数和其他比较器(14)将功能与阈值进行比较。 内容标识符可以通过成本和精度参数来定义。 然后,计算器(13)计算成本10参数值的第一函数,并计算精度参数值的第二函数,并且进一步比较器(14)将第一函数与第一阈值进行比较,并将第二函数与第二阈值进行比较。