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    • 41. 发明授权
    • Image decoding method
    • 图像解码方法
    • US08050328B2
    • 2011-11-01
    • US10592788
    • 2006-01-11
    • Masayasu IguchiShinya KadonoTadamasa TomaKiyofumi Abe
    • Masayasu IguchiShinya KadonoTadamasa TomaKiyofumi Abe
    • H04N7/12H04N5/93
    • H04N9/8042H04N5/85H04N5/91H04N9/8205H04N19/105H04N19/423H04N19/44H04N19/61H04N21/4325
    • An image decoding method includes a first storage step of sequentially decoding pictures in a stream, storing a picture to be used as a reference into a picture memory, and managing the picture. Further, the image decoding method includes a determination step of determining whether or not random access reproduction has been designated, a state change step of changing a management state for managing a picture in the picture memory, when the random access reproduction has been designated, and a second storage step of sequentially decoding each of the coded pictures from a random access reproduction destination, storing, into the picture memory, a picture to be used as a reference, and managing the picture. This image decoding method enables the decoding of pictures with reference to an appropriate picture even when random access reproduction is performed.
    • 一种图像解码方法包括:顺序解码流中的图像,将要用作参考的图像存储到图像存储器中并管理该图像的第一存储步骤。 此外,图像解码方法包括确定是否已经指定了随机存取再现的确定步骤,当指定了随机存取再现时改变用于管理图像存储器中的图像的管理状态的状态改变步骤,以及 第二存储步骤,从随机存取再现目的地顺序地解码每个编码图像,将要用作参考的图像存储到图像存储器中,以及管理图像。 即使执行随机存取再现,该图像解码方法也可以参考适当的图像解码图像。
    • 43. 发明授权
    • Data reproduction device
    • 数据再现装置
    • US07970602B2
    • 2011-06-28
    • US11578781
    • 2006-02-24
    • Tadamasa TomaYoshinori MatsuiShinya Kadono
    • Tadamasa TomaYoshinori MatsuiShinya Kadono
    • G10L19/00
    • G10L21/038
    • A data reproduction device is provided for achieving seamless reproduction of a stream where a validity of a bandwidth extension function is switched in the stream. The data reproduction device includes an input frequency obtainment unit analyzing header information Hdr and obtaining an input frequency FSin, which is the frequency of basic data, an output frequency determination unit performing predetermined processing based on the input frequency FSin and determining an output frequency FSout, which is the sampling frequency of a decoded frame Fdata, and a decoding unit (2003) which, if the SBR function is valid in a frame to be decoded, decodes sample data at the input frequency FSin and extends the bandwidth of the sampling frequency up to the output frequency FSout, while if the SBR function is not valid in the frame, upsamples the decoding result obtained at the input frequency FSin to the output frequency FSout.
    • 提供了一种数据再现装置,用于实现在流中切换带宽扩展功能的有效性的流的无缝再现。 数据再现装置包括输入频率获取单元,分析标题信息Hdr,并获得作为基本数据频率的输入频率FSin;输出频率确定单元,基于输入频率FSin执行预定处理,并确定输出频率FSout; 解码帧Fdata的采样频率和解码单元(2003),如果SBR功能在要解码的帧中有效,则以输入频率FSin解码采样数据,并将采样频率的带宽向上扩展 到输出频率FSout,而如果SBR功能在帧中无效,则将在输入频率FSin获得的解码结果上传到输出频率FSout。
    • 50. 发明申请
    • Image Decoding Method
    • 图像解码方法
    • US20080232467A1
    • 2008-09-25
    • US10592788
    • 2006-01-11
    • Masayasu IguchiShinya KadonoTadamasa TomaKiyofumi Abe
    • Masayasu IguchiShinya KadonoTadamasa TomaKiyofumi Abe
    • H04N7/32
    • H04N9/8042H04N5/85H04N5/91H04N9/8205H04N19/105H04N19/423H04N19/44H04N19/61H04N21/4325
    • There is provided an image decoding method for decoding a picture to be decoded by referencing an appropriate picture even when random access reproduction is performed. The method includes: a first storage step (S100-S104) for successively decoding respective pictures contained in a stream and storing the pictures used for reference in a picture memory (103), thereby performing management; a judgment step (S106) for judging whether a random access reproduction has been specified; a state modification step (S108) used when it is judged that the random access reproduction has been specified, for modifying the management state for managing the pictures in the picture memory (103); and a storage step (S100-S104) for successively decoding the respective pictures from the random access reproduction destination assuming that the modified management state is the initial state and storing the pictures used for reference in the picture memory (103), thereby performing management.
    • 提供了一种图像解码方法,即使在进行随机存取再现时也通过参考适当的图像来解码要解码的图像。 该方法包括:第一存储步骤(S100-100D),用于连续解码包含在流中的各个画面,并将用于参考的画面存储在画面存储器中,从而进行管理; 判断步骤(S106),用于判断是否指定了随机存取再现; 当判定已经指定了随机存取再现时使用的状态修改步骤(S108),用于修改用于管理画面存储器(103)中的画面的管理状态; 以及存储步骤(S100-1004),用于假定修改的管理状态是初始状态并将用于参考的图像存储在图像存储器(103)中,从而随机存取再现目的地连续解码各个图像,从而执行 管理。