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    Audio coding/decoding method and apparatus using excess quantization information
    41.
    发明授权
    Audio coding/decoding method and apparatus using excess quantization information 有权
    使用过量化信息的音频编码/解码方法和装置

    公开(公告)号：US08521522B2

    公开(公告)日：2013-08-27

    申请号：US11381791

    申请日：2006-05-05

    申请人： Yuuki Matsumura ,  Shiro Suzuki ,  Keisuke Toyama ,  Mitsuyuki Hatanaka ,  Yuhki Mitsufuji

    发明人： Yuuki Matsumura ,  Shiro Suzuki ,  Keisuke Toyama ,  Mitsuyuki Hatanaka ,  Yuhki Mitsufuji

    IPC分类号： H04B14/06

    CPC分类号： G10L19/032

    摘要： There is provided an audio coding device which appropriately sets the quantization bit number by a small calculation amount in each stage when coding an input audio signal by performing multi-stage normalization/quantization. A quantization information calculation section determines total quantization information idwl0, based on normalization information idsf, and allocates the total quantization information idwl0 for quantization information idwl1 and quantization information idwl2. At this time, the quantization information calculation section limits the quantization information idwl1 by a limiter lim1, and allocates the total quantization information idwl0 for quantization information idwl1. If the quantization information idwl1 exceeds the limiter lim1, the excess is allocated for the quantization information idwl2. A first normalization section and a first quantization section normalizes and quantizes a frequency spectrum mdspec1 in the first stage. A second normalization section and a second quantization section normalizes and quantizes a differential frequency spectrum mdspec2 in the second stage.

    摘要翻译： 提供了一种音频编码装置，其通过执行多级标准化/量化来对输入的音频信号进行编码时，在每个级中适当地设置量化位数小的计算量。 量化信息计算部分基于规范化信息idid来确定总量化信息idwl0，并分配量化信息idwl1和量化信息idwl2的总量化信息idwl0。 此时，量化信息计算部分通过限制器lim1限制量化信息idwl1，并且分配量化信息idwl1的总量化信息idwl0。 如果量化信息idwl1超过限制器lim1，则为量化信息idwl2分配过量。 第一归一化部分和第一量化部分对第一级中的频谱mdspec1进行归一化和量化。 第二归一化部分和第二量化部分对第二阶段中的差分频谱mdspec2进行归一化和量化。

    CONTROL DEVICE, CONTROL METHOD, AND PROGRAM
    42.
    发明申请
    CONTROL DEVICE, CONTROL METHOD, AND PROGRAM 有权
    控制装置，控制方法和程序

    公开(公告)号：US20110295396A1

    公开(公告)日：2011-12-01

    申请号：US13147858

    申请日：2010-12-12

    申请人： Toru Chinen ,  Yuki Yamamoto ,  Mitsuyuki Hatanaka

    发明人： Toru Chinen ,  Yuki Yamamoto ,  Mitsuyuki Hatanaka

    IPC分类号： G06F17/00

    CPC分类号： G10L25/00 ,  G06F2200/1636

    摘要： The present invention relates to a control device, a control method, and a program capable of improving operability with a simpler configuration.A reproducing apparatus 11 which reproduces sound such as music includes earphones 21 which are worn by a user on the ears and a body 22. A sound pickup unit 31 collects sounds around the reproducing apparatus 11, and a determination unit 34 extracts future amounts from the collected sound and determines whether the sound corresponds to an operation sound generated when the sound pickup unit 31 is directly tapped by the user. A controller 35 executes a process in accordance with a result of the determination performed by the determination unit 34. For example, when a sound pickup unit 31-1 is tapped once within a predetermined period of time, the controller 35 instructs a reproduction controller 39 to stop reproduction of music. In the reproducing apparatus 11, various function control processes may be performed by a simple operation of tapping the sound pickup unit 31 and buttons are not required. The present invention is applicable to a music player.

    摘要翻译： 本发明涉及一种能够以更简单的配置改善可操作性的控制装置，控制方法和程序。 重现声音的再现装置11包括用户在耳朵上佩戴的耳机21和主体22.声音拾取单元31在再现设备11周围收集声音，并且确定单元34从 收集的声音，并且确定声音是否对应于当用户直接敲击声音拾取单元31时产生的操作声音。 控制器35根据由确定单元34执行的确定结果执行处理。例如，当在预定时间段内拾取声音拾取单元31-1一次时，控制器35指示再现控制器39 停止再现音乐。 在再现装置11中，可以通过敲击声音拾取单元31的简单操作来执行各种功能控制处理，并且不需要按钮。 本发明可应用于音乐播放器。

    Playback Method and Apparatus, Program, and Recording Medium
    46.
    发明申请
    Playback Method and Apparatus, Program, and Recording Medium 有权
    播放方法和设备，程序和记录介质

    公开(公告)号：US20080170704A1

    公开(公告)日：2008-07-17

    申请号：US11935050

    申请日：2007-11-05

    申请人： Chisato KEMMOCHI ,  Mitsuyuki Hatanaka

    发明人： Chisato KEMMOCHI ,  Mitsuyuki Hatanaka

    IPC分类号： H04H20/47

    CPC分类号： H04S1/007 ,  G10L19/008 ,  H04S2420/03 ,  H04S2420/07

    摘要： There is provided a playback method for decode-processing and playing back coded audio data which is transmitted with necessary stereo process information required for a stereo process intermittently multiplexed into coded information of a monaural audio signal. The playback method includes a first step of outputting stereo audio signals using the monaural audio signal if the necessary stereo process information is not supplied; a second step of starting updating stereo variables within filters, and outputting the stereo audio signals using the monaural audio signal until all the state variables are updated, if the necessary stereo process information is supplied; and a third step of performing the stereo process based on stereo process information acquired by the necessary stereo process information, on the monaural audio signal to generate and output stereo audio signals, if all the state variables within the filters are updated.

    摘要翻译： 提供了一种用于解码处理和重放经过间歇复用到单声道音频信号的编码信息中的立体声处理所需立体声处理信息所需的立体声处理信息的再现方法。 回放方法包括：如果未提供必要的立体声处理信息，则使用单声道音频信号输出立体声音频信号的第一步骤; 如果提供了必要的立体声处理信息，则开始更新滤波器内的立体声变量的第二步骤，并且使用单声道音频信号输出立体声音频信号，直到所有状态变量被更新; 以及如果更新所述滤波器内的全部状态变量，则在所述单声道音频信号上基于由所述立体声处理信息获取的立体声处理信息来执行立体声处理以产生和输出立体声音频信号的第三步骤。