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    • 1. 发明授权
    • Filtering apparatus and digital broadcast receiving apparatus
    • 滤波装置和数字广播接收装置
    • US08213557B2
    • 2012-07-03
    • US11955178
    • 2007-12-12
    • Kenji Tomizawa
    • Kenji Tomizawa
    • H04B1/10
    • H04N21/434H04N21/42615H04N21/4345H04N21/4385H04N21/454
    • A filtering apparatus including: first and second filters used to filter inputted packets; a connection information register disposed in correspondence with the first filter; a condition storage portion configured to store a filter condition for identifying a packet associated to the second filter; a reference number register configured to allocate any one of the numbers of the second filters as a reference number for each number of the first filter and to store the reference numbers; and a determination portion configured to determine the number of the second filter to be used to filter packets filtered using the first filter based on the reference number and on a value of the connection information register corresponding to the first filter.
    • 一种滤波装置,包括:用于滤除输入分组的第一和第二滤波器; 连接信息寄存器,与第一滤波器相对应地设置; 条件存储部,被配置为存储用于识别与所述第二滤波器相关联的分组的滤波条件; 参考号码寄存器,其被配置为将第二滤波器的数量中的任一个分配为每个第一滤波器的编号的参考号,并存储附图标记; 以及确定部分,被配置为基于所述参考号确定用于过滤使用所述第一滤波器的分组的所述第二滤波器的数量以及对应于所述第一滤波器的所述连接信息寄存器的值。
    • 2. 发明授权
    • Filtering apparatus, digital broadcast receiving apparatus and filtering method
    • 滤波装置,数字广播接收装置和滤波方法
    • US08000396B2
    • 2011-08-16
    • US11132388
    • 2005-05-19
    • Kenji Tomizawa
    • Kenji Tomizawa
    • H04N7/12H04N11/02H04N11/04
    • H04L12/1836H04N21/42615H04N21/434H04N21/4345
    • A filtering apparatus which includes first filters assigned first numbers different from each other and which detect packets having a previously specified identifiers. The apparatus includes information registers disposed in correspondence with the first filters and which store a predetermined number of bits, and includes a condition storage portion that stores second numbers different from each other and section conditions associated with the second numbers. The apparatus includes a determination portion that determines a number range specifying a part of the second numbers for each first filter as not overlapping each other based on the first numbers of each first filter and selects a second number from each number range per first filter based on values of bits in each information register, and a second filter that checks whether the packet detected by each first filter satisfies the section condition associated with the second number determined for each first filter.
    • 一种滤波装置,其包括分配了彼此不同的第一数字的第一滤波器,并且检测具有先前指定的标识符的分组。 该装置包括与第一滤波器相对应地设置并存储预定数量的比特的信息寄存器,并且包括条件存储部分,其存储彼此不同的第二数字和与第二数字相关联的部分条件。 该装置包括确定部分,其基于每个第一滤波器的第一编号,确定指定每个第一滤波器的第二编号的一部分彼此不重叠的数字范围,并且基于每个第一滤波器从每个编号范围中选择第二编号 每个信息寄存器中的位值,以及检查由每个第一滤波器检测到的分组是否满足与为每个第一滤波器确定的第二编号相关联的分段条件的第二滤波器。