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    Control mechanism for audio rate adjustment
    1.
    发明授权
    Control mechanism for audio rate adjustment 有权
    音频调整控制机制

    公开(公告)号：US07848930B2

    公开(公告)日：2010-12-07

    申请号：US11581353

    申请日：2006-10-17

    申请人： Cam Minh Luu

    发明人： Cam Minh Luu

    IPC分类号： G10L21/00

    CPC分类号： G10L21/01

    摘要： A system and method for controlling rate adjustment of audio data to prevent underflow or overflow. In a dual audio/video system, a device can receive two input transport streams. To prevent underflow or overflow of audio data when audio data from a first transport stream is displayed in accordance with a sample rate derived from a second transport stream, a control for rate adjustment is used to match the source sample rate with the display rate. This rate adjustment module can be designed to add or drop audio samples based on a time base comparison or on a STC, PTC, and display rate comparison.

    摘要翻译： 一种用于控制音频数据的速率调整以防止下溢或溢出的系统和方法。 在双音频/视频系统中，设备可以接收两个输入传输流。 为了根据从第二传输流导出的采样率显示来自第一传输流的音频数据，防止音频数据的下溢或溢出，使用速率调整控制来将源采样率与显示速率相匹配。 该速率调整模块可以被设计为基于时基比较或STC，PTC和显示速率比较来添加或删除音频样本。

    Control mechanism for audio rate adjustment
    2.
    发明申请
    Control mechanism for audio rate adjustment 有权
    音频调整控制机制

    公开(公告)号：US20080091437A1

    公开(公告)日：2008-04-17

    申请号：US11581353

    申请日：2006-10-17

    申请人： Cam Minh Luu

    发明人： Cam Minh Luu

    IPC分类号： G10L21/00

    CPC分类号： G10L21/01

    摘要： A system and method for controlling rate adjustment of audio data to prevent underflow or overflow. In a dual audio/video system, a device can receive two input transport streams. To prevent underflow or overflow of audio data when audio data from a first transport stream is displayed in accordance with a sample rate derived from a second transport stream, a control for rate adjustment is used to match the source sample rate with the display rate. This rate adjustment module can be designed to add or drop audio samples based on a time base comparison or on a STC, PTC, and display rate comparison.

    摘要翻译： 一种用于控制音频数据的速率调整以防止下溢或溢出的系统和方法。 在双音频/视频系统中，设备可以接收两个输入传输流。 为了根据从第二传输流导出的采样率显示来自第一传输流的音频数据，防止音频数据的下溢或溢出，使用速率调整控制来将源采样率与显示速率相匹配。 该速率调整模块可以被设计为基于时基比较或STC，PTC和显示速率比较来添加或删除音频样本。

    Flexible SPDIF verification tool
    4.
    发明授权
    Flexible SPDIF verification tool 失效
    灵活的SPDIF验证工具

    公开(公告)号：US07409329B2

    公开(公告)日：2008-08-05

    申请号：US10871209

    申请日：2004-06-18

    申请人： Cam Minh Luu ,  Keith L. Klingler ,  Glen A. Grover

    发明人： Cam Minh Luu ,  Keith L. Klingler ,  Glen A. Grover

    IPC分类号： G06F17/50

    CPC分类号： G06F17/5022

    摘要： A system and method of verifying the format of a simulated signal produced during the simulation of an electronic circuit is disclosed. One aspect of the present invention includes a method of extracting timing information from a single simulated serial digital audio signal that comprises both data and clock. An embodiment of the present invention may verify operation of the simulated electronic circuit by setting the value of a first simulated signal according to predetermined events that occur in a second simulated signal. The second simulated signal may be parsed using timing information extracted from the second simulated signal, and the format of the second simulated signal may be matched against a predetermined format based upon the results of the parsing. An embodiment of the present invention may, for example, be employed during software simulation to verify the operation of exemplary devices such as application specific circuits (ASICs) used in the generation of signals meeting the Sony/Philips Digital Interconnect Format (SPDIF).

    摘要翻译： 公开了一种验证电子电路模拟期间产生的模拟信号的格式的系统和方法。 本发明的一个方面包括从包括数据和时钟的单个模拟串行数字音频信号中提取定时信息的方法。 本发明的实施例可以根据在第二模拟信号中发生的预定事件设定第一模拟信号的值来验证模拟电子电路的操作。 可以使用从第二模拟信号提取的定时信息来解析第二模拟信号，并且可以基于解析的结果将第二模拟信号的格式与预定格式进行匹配。 例如，在软件仿真期间可以采用本发明的一个实施例来验证诸如在产生满足索尼/飞利浦数字互联格式（SPDIF）的信号的生成中使用的应用专用电路（ASIC）等示例性设备的操作。

    Method and System for Multi-Channel PCM Audio Grouping in Hardware
    6.
    发明申请
    Method and System for Multi-Channel PCM Audio Grouping in Hardware 审中-公开
    硬件中多声道PCM音频分组的方法和系统

    公开(公告)号：US20080114478A1

    公开(公告)日：2008-05-15

    申请号：US11558191

    申请日：2006-11-09

    申请人： David Wu ,  Cam Minh Luu ,  Keith Klingler ,  Glen Albert Grover

    发明人： David Wu ,  Cam Minh Luu ,  Keith Klingler ,  Glen Albert Grover

    IPC分类号： G06F17/00

    CPC分类号： G11B20/10527 ,  G10L19/008 ,  G11B2020/10546 ,  G11B2220/2541 ,  H04N9/8063

    摘要： Certain aspects of a method and system for multi-channel PCM audio grouping in hardware are disclosed. Aspects of one method may include arbitrating the processing of a plurality of channel pairs within a channel group based on a plurality of received PCM audio samples. The plurality of channel pairs within the channel group may be sequentially processed based on their channel IDs. The channel ID of the first channel pair within the channel group may be allocated as a common group identification value. The grouping of multiple channel pairs ensures channel synchronization.

    摘要翻译： 公开了用于硬件中多声道PCM音频分组的方法和系统的某些方面。 一种方法的方面可以包括基于多个接收的PCM音频样本来仲裁信道组内的多个信道对的处理。 信道组内的多个信道对可以根据它们的信道ID被顺序处理。 信道组内的第一信道对的信道ID可以被分配为公共组标识值。 多通道对的分组确保通道同步。