REFLECTIVE OPTICAL DATA MODULATOR
    22.
    发明申请

    公开(公告)号:US20190312642A1

    公开(公告)日:2019-10-10

    申请号:US16375175

    申请日:2019-04-04

    摘要: A reflective optical data modulator includes a layer of optical material, a front partial optical reflector on a major surface of the layer of optical material, a back optical reflector, and at least two electrodes. The back optical reflector is at or near a portion of a second surface of the layer of optical material and faces the front partial optical reflector. The at least two, electrodes are located to enable application of a voltage across a portion of the layer of optical material. The layer of optical material has an optical absorption dependent on the voltage applied across the electrodes. The front partial optical reflector is an unburied layer structure.

    Stereo encoding method, stereo encoding device, and encoder
    23.
    发明授权
    Stereo encoding method, stereo encoding device, and encoder 有权
    立体声编码方法,立体声编码装置和编码器

    公开(公告)号:US09064488B2

    公开(公告)日:2015-06-23

    申请号:US13224806

    申请日:2011-09-02

    摘要: A stereo encoding method, a stereo encoding device, and an encoder are provided. The stereo encoding method includes: obtaining a left channel energy relation coefficient and a right channel energy relation coefficient; obtaining a left energy sum and a right energy sum respectively; performing cross correlation between sub-bands of a first monophonic signal at a wave trough and sub-bands of the left channel signal according to the left channel energy relation coefficient, and performing cross correlation between sub-bands of the first monophonic signal at the wave trough and sub-bands of the right channel signal according to the right channel energy relation coefficient; obtaining a scaling factor by using the left energy sum, the right energy sum, and cross correlation results; and encoding the stereo left and right channel signals according to the scaling factor.

    摘要翻译: 提供立体声编码方法,立体声编码装置和编码器。 立体声编码方法包括:获得左声道能量关系系数和右声道能量关系系数; 分别获得左边的能量和和能量的和; 根据左声道能量关系系数,在波谷处的第一单声道信号的子带与左声道信号的子带之间进行互相关,并且在波形处执行第一单声道信号的子带之间的互相关 根据右声道能量关系系数,右声道信号的波谷和子带; 通过使用左边的能量和,正确的能量和和互相关的结果获得比例因子; 并根据缩放因子对立体声左右声道信号进行编码。

    Stereo encoding method and apparatus
    24.
    发明授权
    Stereo encoding method and apparatus 有权
    立体声编码方法和装置

    公开(公告)号:US08489406B2

    公开(公告)日:2013-07-16

    申请号:US13208460

    申请日:2011-08-12

    IPC分类号: G10L19/00

    摘要: A stereo encoding method and apparatus are provided, so as to reduce distortion caused by delay adjustment. The stereo encoding method includes: extracting a current interchannel delay of a stereo signal and a previous delay adjacent to the current interchannel delay; performing adjustment frame judgment according to characteristics of the current stereo signal when the current delay and the previous delay are different; and performing delay adjustment on the stereo signal by using the current interchannel delay if it is judged that a frame where the current delay occurs is an adjustment frame.

    摘要翻译: 提供立体声编码方法和装置,以便减少由延迟调整引起的失真。 立体声编码方法包括:提取立体声信号的当前通道间延迟和与当前通道间延迟相邻的先前延迟; 当当前延迟和先前的延迟不同时,根据当前立体声信号的特性进行调整帧判断; 并且如果判断当前延迟发生的帧是调整帧,则通过使用当前的信道间延迟来对立体声信号执行延迟调整。

    Method and apparatus for processing signal
    25.
    发明授权
    Method and apparatus for processing signal 有权
    处理信号的方法和装置

    公开(公告)号:US08468025B2

    公开(公告)日:2013-06-18

    申请号:US13172509

    申请日:2011-06-29

    IPC分类号: G10L19/00

    摘要: A method and an apparatus for processing a signal are provided. The method includes: obtaining an energy average value of each sub-band for a current frame frequency-domain signal; obtaining a current frame modification coefficient of each sub-band for the current frame frequency-domain signal according to a spectral envelope and the energy average value of each sub-band; obtaining a weighted modification coefficient of each sub-band for the current frame frequency-domain signal by using the current frame modification coefficient and a relevant frame modification coefficient; and modifying the spectral envelope of each sub-band for the current frame frequency-domain signal by using the weighted modification coefficient.

    摘要翻译: 提供了一种用于处理信号的方法和装置。 该方法包括:获得当前帧频域信号的每个子带的能量平均值; 根据每个子带的频谱包络和能量平均值,获取当前帧频域信号的每个子带的当前帧修改系数; 通过使用当前帧修正系数和相关帧修正系数,获得当前帧频域信号的每个子带的加权修正系数; 以及通过使用加权修正系数来修改当前帧频域信号的每个子带的频谱包络。

    Method for estimating inter-channel delay and apparatus and encoder thereof
    26.
    发明授权
    Method for estimating inter-channel delay and apparatus and encoder thereof 有权
    用于估计信道间延迟的方法及其装置及其编码器

    公开(公告)号:US08417473B2

    公开(公告)日:2013-04-09

    申请号:US13245303

    申请日:2011-09-26

    IPC分类号: G01R25/04

    摘要: A method for estimating inter-channel delay and an apparatus for estimating inter-channel delay and an encoder are provided by the embodiments of the present invention. The method includes: obtaining signal sound field information from a cross-correlation function and a cumulative cross-correlation function of synthetic signals of left and right sound channels respectively; obtaining adjustment information of the cumulative cross-correlation function according to the sound field information that is respectively obtained; adjusting the cumulative cross-correlation function by using the adjustment information, so as to obtain the adjusted cumulative cross-correlation function; and determining a time corresponding to a maximum value in the adjusted cumulative cross-correlation function as an inter-channel delay. Therefore, the delay between the signals of the left and right sound channels can be estimated correctly, so as to improve the stability of the synthetic stereo sound field.

    摘要翻译: 通过本发明的实施例提供了一种用于估计信道间延迟的方法和用于估计信道间延迟的装置和编码器。 该方法包括:分别从互相关函数获得信号声场信息和左声道和右声道的合成信号的累积互相关函数; 根据分别获得的声场信息获得累积互相关函数的调整信息; 通过使用调整信息来调整累积互相关函数,以获得经调整的累积互相关函数; 并且将调整后的累积互相关函数中的与最大值对应的时间确定为信道间延迟。 因此,可以正确地估计左声道和右声道的信号之间的延迟,从而提高合成立体声场的稳定性。

    Capacity and density enhancement circuit for sub-threshold memory unit array
    28.
    发明授权
    Capacity and density enhancement circuit for sub-threshold memory unit array 有权
    用于子阈值存储单元阵列的容量和密度增强电路

    公开(公告)号:US08345468B2

    公开(公告)日:2013-01-01

    申请号:US13322114

    申请日:2009-08-18

    IPC分类号: G11C11/24

    CPC分类号: G11C11/412 G11C7/12

    摘要: A capacity and density enhancement circuit for a sub-threshold memory unit array which can decrease the drain current in the bit lines and enhance the pull-up capability of memory cells. The capacity and density enhancement circuit is composed of a first enhancement transistor, a second enhancement transistor, a first mask transmission gate, a second mask transmission gate, a first logic memory capacitor and a second logic memory capacitor.

    摘要翻译: 一种用于子阈值存储单元阵列的容量和密度增强电路,其可以减小位线中的漏极电流并增强存储器单元的上拉能力。 容量和密度增强电路由第一增强晶体管,第二增强晶体管,第一掩模传输栅极,第二掩模传输栅极,第一逻辑存储电容器和第二逻辑存储电容器组成。

    Method and device for performing frame erasure concealment to higher-band signal
    30.
    发明授权
    Method and device for performing frame erasure concealment to higher-band signal 有权
    用于对较高频带信号进行帧擦除隐藏的方法和装置

    公开(公告)号:US08200481B2

    公开(公告)日:2012-06-12

    申请号:US12129118

    申请日:2008-05-29

    IPC分类号: G10L11/04 G10L19/00

    CPC分类号: G10L19/005 G10L19/0204

    摘要: The present invention discloses a method for performing a frame erasure concealment to a higher-band signal, including: calculating a periodic intensity of a higher-band signal with respect to a lower-band signal; judging whether the periodic intensity of the higher-band signal is higher than or equal to a preconfigured threshold; if the periodic intensity of the higher-band signal is higher than or equal to the preconfigured threshold, using a pitch period repetition method to perform the frame erasure concealment to the higher-band signal of a current lost frame; and if the periodic intensity of the higher-band signal is lower than the preconfigured threshold, using a previous frame data repetition method to perform the frame erasure concealment to the higher-band signal of the current lost frame. The present invention further discloses a device for performing a frame erasure concealment to a higher-band signal and a speech decoder. The problem that the quality of the voice signal is lowered is avoided.

    摘要翻译: 本发明公开了一种用于对较高频带信号执行帧擦除隐藏的方法,包括:计算相对于较低频带信号的较高频带信号的周期性强度; 判断高频信号的周期性强度是否高于或等于预配置阈值; 如果高频信号的周期性强度高于或等于预配置阈值,则使用音调周期重复方法对当前丢失帧的较高频带信号执行帧擦除隐藏; 并且如果高频信号的周期性强度低于预配置阈值,则使用先前的帧数据重复方法对当前丢失帧的较高频带信号执行帧擦除隐藏。 本发明还公开了一种用于对较高频带信号和语音解码器执行帧擦除隐藏的装置。 避免语音信号质量下降的问题。