Music synthesis system
    1.
    发明授权
    Music synthesis system 有权
    音乐综合系统

    公开(公告)号:US07276655B2

    公开(公告)日:2007-10-02

    申请号:US11054660

    申请日:2005-02-09

    IPC分类号: G10H7/00

    摘要: The invention relates to a music synthesis system for synthesizing a corresponding digital music output according to commands from a music data file. The music data file comprises a plurality of music data units. Each music data unit records related information of the music. The music synthesis system comprises a wavetable, a memory, a music analyzer, a wavetable preprocessor, and a synthesizer. The wavetable pre-stores the digital sampling data. The memory has a predetermined memory capacity for storing data. The music analyzer receives the music data file, analyzes the music data units of the music data file, and generates a corresponding analysis result. The wavetable preprocessor selects the digital sampling data with relatively greater importance in the wavetable and stores the selected digital sampling data in the memory. The synthesizer selects the digital sampling data from the memory and synthesizes the digital music output.

    摘要翻译: 本发明涉及一种用于根据来自音乐数据文件的命令合成对应的数字音乐输出的音乐合成系统。 音乐数据文件包括多个音乐数据单元。 每个音乐数据单元记录音乐的相关信息。 音乐合成系统包括波表,存储器,音乐分析器,波表预处理器和合成器。 波表预存储数字采样数据。 存储器具有用于存储数据的预定存储容量。 音乐分析仪接收音乐数据文件,分析音乐数据文件的音乐数据单元,并产生相应的分析结果。 波形预处理器在波形图中选择具有相对较大重要性的数字采样数据,并将所选择的数字采样数据存储在存储器中。 合成器从存储器中选择数字采样数据并合成数字音乐输出。

    Motor control system and method of the same
    2.
    发明授权
    Motor control system and method of the same 有权
    电机控制系统及方法相同

    公开(公告)号:US07138782B2

    公开(公告)日:2006-11-21

    申请号:US11033771

    申请日:2005-01-12

    IPC分类号: G05D23/275

    CPC分类号: G11B19/28 H02P29/00

    摘要: The present invention provides a motor control system and method thereof. The motor control system comprises a motor controller and a compensation device. The motor controller is used for generating a motor control output according to a reference signal and a first signal. The compensation device is used for generating a compensated motor control output according to the motor control output and a second signal. Moreover, the compensation device utilizes the compensated motor control output to reduce the steady-state phase error between the first signal and the reference signal.

    摘要翻译: 本发明提供一种电机控制系统及其方法。 电机控制系统包括电机控制器和补偿装置。 马达控制器用于根据参考信号和第一信号产生马达控制输出。 补偿装置用于根据电动机控制输出和第二信号产生补偿的电动机控制输出。 此外,补偿装置利用经补偿的电动机控制输出来减小第一信号和参考信号之间的稳态相位误差。

    Method and apparatus for karaoke scoring
    3.
    发明授权
    Method and apparatus for karaoke scoring 有权
    卡拉OK评分方法和装置

    公开(公告)号:US07304229B2

    公开(公告)日:2007-12-04

    申请号:US10996831

    申请日:2004-11-24

    申请人: Pei-Chen Chang

    发明人: Pei-Chen Chang

    IPC分类号: G09B5/00

    摘要: A karaoke scoring apparatus includes a memory element, a feature extraction element, a similarity measurement element, and a scoring element. The karaoke system includes a reference audio input to be compared with a target audio input for giving a score. The reference audio input and the target audio input are sampled respectively and are transformed sequentially to plural frames of reference sampling signals and plural frames of target sampling signals. The memory element is used for storing the frame of reference sampling signal and the frame of target sampling signal. The feature extraction element is used for performing autocorrelation calculation on the frame of reference sampling signal and the frame of target sampling signal. The similarity measurement element is used for generating a similarity result. The scoring element is used for calculating the similarity results corresponding to the plural frames of sampling signals to output final score.

    摘要翻译: 卡拉OK评分装置包括存储元件,特征提取元件,相似度测量元件和评分元件。 该卡拉OK系统包括一个参考音频输入,以与用于给出分数的目标音频输入进行比较。 参考音频输入和目标音频输入被分别采样,并且被顺序变换成多个参考采样信号和多个目标采样信号帧。 存储元件用于存储参考采样信号和目标采样信号的帧。 特征提取元件用于对参考采样信号和目标采样信号的帧执行自相关计算。 相似度测量元件用于产生相似度结果。 评分元素用于计算与多个采样信号帧对应的相似度结果,以输出最终得分。

    Semiconductor light emitting device and method of making the same
    4.
    发明授权
    Semiconductor light emitting device and method of making the same 有权
    半导体发光器件及其制造方法

    公开(公告)号:US07141830B2

    公开(公告)日:2006-11-28

    申请号:US10942697

    申请日:2004-09-16

    IPC分类号: H01L29/24

    CPC分类号: H01L33/14 H01L33/32 H01L33/42

    摘要: The invention provides a semiconductor light emitting device and the method of making it. The semiconductor light emitting device, according to the invention, includes an undoped InxGAyAl2N film, as an Ohmic layer, formed between a top-most semiconductor material layer and a transparent conductive oxide layer. Since the undoped film as a tunneling layer is very thin (≦20 angstroms), the electric field across the tunneling layer, under forward bias, will make electron tunneling from valence band to conduction band, and return to the transparent conductive layer, A reasonably low and stable forward voltage of the semiconductor light emitting device according to the invention can be achieved.

    摘要翻译: 本发明提供一种半导体发光器件及其制造方法。 根据本发明的半导体发光器件包括未形成的未掺杂的作为欧姆层的In N x N y Al 2 N 2 N膜,形成 在最顶层的半导体材料层和透明导电氧化物层之间。 由于作为隧穿层的未掺杂膜非常薄(<= 20埃),穿过隧道层的电场在正向偏压下将使电子从价带隧穿到导带,并返回到透明导电层A 可以实现根据本发明的半导体发光器件的合理低且稳定的正向电压。