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    • 47. 发明申请
    • HYBRID RESISTOR/FET-LOGIC DEMULTIPLEXER ARCHITECTURE DESIGN FOR HYBRID CMOS/NANODEVICE CIRCUITS
    • 用于混合CMOS /纳米器件电路的混合电阻/ FET逻辑解复用器架构设计
    • US20100171525A1
    • 2010-07-08
    • US12334186
    • 2008-12-12
    • Tong ZhangShu Li
    • Tong ZhangShu Li
    • H03K19/00
    • H03K19/17704B82Y10/00H03K19/17736H03K19/1778H03K19/17784H03K19/17792H03M13/51
    • A hybrid resistor/FET-logic demultiplexer (demux) is provided. According to an embodiment, hybrid nanoelectronics, which incorporate nanodevice crossbars on CMOS backplane circuits, can be implemented using the subject demux as the interface between the nanowires in the nanodevice crossbars and the microwires fabricated in the CMOS domain. Embodiments of the present invention incorporate resistor-logic and FET-logic to realize the demultiplexing function. In various embodiments, a single column of p-type FETs is used to convert the linear voltage output of a resistor-logic demux core into a nonlinear output so that the desired demultiplexing function can be much better approximated. The resistor-logic demux core design can still be optimized using constant weight codes, whereas the optimization constraint on the constant weight code construction is largely relaxed, which can result in a more area efficient demux.
    • 提供了一种混合电阻/ FET逻辑解复用器(解复用)。 根据一个实施例,在CMOS背板电路上并入纳米器件交叉导线的混合纳米电子学可以使用本体解复用器作为纳米器件交叉导线中的纳米线与在CMOS域中制造的微线之间的界面来实现。 本发明的实施例结合了电阻逻辑和FET逻辑来实现解复用功能。 在各种实施例中,单列p型FET用于将电阻 - 逻辑解复用器核的线性电压输出转换为非线性输出,使得期望的解复用功能可以更好地近似。 电阻 - 逻辑解复用器核心设计仍然可以使用恒权重代码进行优化,而对恒权重代码构造的优化约束在很大程度上是放松的,这可以导致更多的区域有效的解复用。
    • 48. 发明授权
    • Computational music-tempo estimation
    • 计算音乐速度估计
    • US07645929B2
    • 2010-01-12
    • US11519545
    • 2006-09-11
    • Yu-Yao ChangRamin SamadaniTong ZhangSimon Widdowson
    • Yu-Yao ChangRamin SamadaniTong ZhangSimon Widdowson
    • G04F10/06
    • G10H1/40G10H2210/076
    • Various method and system embodiments of the present invention are directed to computational estimation of a tempo for a digitally encoded musical selection. In certain embodiments of the present invention, described below, a short portion of a musical selection is analyzed to determine the tempo of the musical selection. The digitally encoded musical selection sample is computationally transformed to produce a power spectrum corresponding to the sample, in turn transformed to produce a two-dimensional strength-of-onset matrix. The two-dimensional strength-of-onset matrix is then transformed into a set of strength-of-onset/time functions for each of a corresponding set of frequency bands. The strength-of-onset/time functions are then analyzed to find a most reliable onset interval that is transformed into an estimated tempo returned by the analysis.
    • 本发明的各种方法和系统实施例涉及用于数字编码的音乐选择的速度的计算估计。 在下面描述的本发明的某些实施例中,分析音乐选择的短部分以确定音乐选择的速度。 数字编码的音乐选择样本被计算地转换以产生对应于样本的功率谱,然后被转换以产生二维的发射强度矩阵。 然后将二维强度发射矩阵转换成对应于一组频带中的每一个的一组起始/时间强度函数。 然后分析发作强度/时间函数以找到最可靠的开始间隔,其被转换成由分析返回的估计节奏。
    • 49. 发明授权
    • Noise-resistant detection of harmonic segments of audio signals
    • 音频信号谐波段的抗噪声检测
    • US07521622B1
    • 2009-04-21
    • US11676174
    • 2007-02-16
    • Tong Zhang
    • Tong Zhang
    • A63H5/00G04B13/00G10H7/00
    • G10L25/78G10H2210/046G10H2210/066G10H2250/235G10L25/90
    • Respective pitch values are estimated for an audio signal. Candidate harmonic segments of the audio signal are identified from the estimated pitch values. Respective levels of harmonic content in the candidate harmonic segments are determined. An associated classification record is generated for each of the candidate harmonic segments based on a harmonic content predicate defining at least one condition on the harmonic content levels. An associated classification record also may be generated for each of the audio signal segments classified into a harmonic segment class based on a classification predicate defining at least one condition on the estimated pitch values. The classification records that are associated with ones of the harmonic segments satisfying the classification predicate include an assignment to a speech segment class. The classification records that are associated with ones of the harmonic segments failing to satisfy the classification predicate include an assignment to a music segment class.
    • 对于音频信号估计各个音调值。 根据估计的音调值来识别音频信号的候选谐波段。 确定候选谐波段中谐波含量的相应水平。 基于谐波含量谓词为每个候选谐波段生成相关联的分类记录,其定义谐波含量水平上的至少一个条件。 还可以基于分类谓词为估计的音调值定义至少一个条件的分类谓词,为分类为谐波段类别的每个音频信号段生成相关联的分类记录。 与满足分类谓词的谐波段中的一个相关联的分类记录包括对语音段类的分配。 与不符合分类谓词的谐波段中的一个相关联的分类记录包括对音乐段类的分配。