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239 条记录 (耗时 0.018 秒)

    Adjustment of scale factors in a perceptual audio coder based on cumulative total buffer space used and mean subband intensities
    72.
    发明授权
    Adjustment of scale factors in a perceptual audio coder based on cumulative total buffer space used and mean subband intensities 有权
    基于所使用的累积总缓冲空间和平均子带强度来调整感知音频编码器中的比例因子

    公开(公告)号：US07702514B2

    公开(公告)日：2010-04-20

    申请号：US11391752

    申请日：2006-03-28

    申请人： Chih-Hsin Lin ,  Hsin-Chia Chen ,  Chang-Che Tsai ,  Tzu-Yi Chao

    发明人： Chih-Hsin Lin ,  Hsin-Chia Chen ,  Chang-Che Tsai ,  Tzu-Yi Chao

    IPC分类号： G10L19/02

    CPC分类号： G10L19/0208 ,  G10L19/035

    摘要： A method for audio encoding includes: analyzing an audio frame using a psychoacoustic model to obtain a corresponding masking curve and window information; transforming the audio frame according to the window information to obtain a spectrum, and dividing the spectrum into a plurality of frequency sub-bands; estimating a scale factor for each frequency sub-band; quantizing the frequency sub-bands; encoding the quantized frequency sub-bands; and packing the encoded frequency sub-bands and side information into an audio stream. Each scale factor is estimated based on a quantizable audio intensity of each frequency sub-band, which is adjusted according to a cumulative total amount of buffer space used for storing the encoded frequency sub-bands and an amount of buffer space used for storing a previously encoded audio frame, and a mean of intensities of all signals in the corresponding frequency sub-band and spectrum position of the corresponding frequency sub-band.

    摘要翻译： 一种用于音频编码的方法包括：使用心理声学模型分析音频帧以获得相应的掩蔽曲线和窗口信息; 根据窗口信息变换音频帧以获得频谱，并将频谱划分成多个频率子带; 估计每个频率子带的比例因子; 量化频率子带; 编码量化频率子带; 并将编码的频率子带和侧信息打包成音频流。 每个比例因子基于每个频率子带的可量化音频强度来估计，每个频率子带根据用于存储编码频率子带的缓冲区的累积总量和用于存储先前编码的频率子带的缓冲区空间量进行调整 编码音频帧，以及对应的频率子带的相应频率子带和频谱位置中的所有信号的强度的平均值。

    INPUT DEVICE AND INPUT METHOD
    73.
    发明申请
    INPUT DEVICE AND INPUT METHOD 审中-公开
    输入设备和输入方法

    公开(公告)号：US20090207130A1

    公开(公告)日：2009-08-20

    申请号：US12032646

    申请日：2008-02-16

    申请人： Hsin-Chia Chen ,  Cho-Yi Lin ,  Tzu-Yi Chao

    发明人： Hsin-Chia Chen ,  Cho-Yi Lin ,  Tzu-Yi Chao

    IPC分类号： G09G5/00

    CPC分类号： G06F3/042

    摘要： The present invention discloses an input device and an input method. The input device comprises: a device for receiving input signals; and a processor circuit for generating control information according to comparison between a first difference between two input signals in a first direction and a second difference between two input signals in a second direction.

    摘要翻译： 本发明公开了一种输入装置和输入方法。 输入装置包括：用于接收输入信号的装置; 以及处理器电路，用于根据在第一方向上的两个输入信号之间的第一差异和在第二方向上的两个输入信号之间的第二差异之间的比较来产生控制信息。

    XOR based non-overlapping clock generator
    76.
    发明授权
    XOR based non-overlapping clock generator 有权

    公开(公告)号：US11283429B1

    公开(公告)日：2022-03-22

    申请号：US17223925

    申请日：2021-04-06

    申请人： PixArt Imaging Incorporation

    发明人： Boon-Eu Seow ,  Ping-Seng Lee

    IPC分类号： H03K3/012 ,  G06F1/08 ,  G06F1/06 ,  H03K19/21

    摘要： A non-overlapping clock generator generating an in-phase output clock signal and a reversed-phase output clock signal which are non-overlapped with each other, includes: a first and a second XOR gates, a first and a second load transistors, which are cross coupled, and includes: a first and a second delay circuits. The first delay circuit is coupled between the in-phase output clock signal and a control terminal of the first load transistor. The second delay circuit is coupled between the reversed-phase output clock signal and a control terminal of the second load transistor. Each of the XOR gates includes at least one pass transistor logic circuit configured to execute XOR logic operation and coupled to a first control voltage. A non-overlapping period is determined according to the first control voltage and/or a first delay period of the first delay circuit and a second delay period of the second delay circuit.

    Image sensor, column parallel ADC circuit and A/D conversion method thereof
    78.
    发明授权
    Image sensor, column parallel ADC circuit and A/D conversion method thereof 有权

    公开(公告)号：US10999549B2

    公开(公告)日：2021-05-04

    申请号：US16447072

    申请日：2019-06-20

    申请人： PixArt Imaging Incorporation

    发明人： Kuan Tang ,  Yi-Cheng Chiu ,  Chia-Chi Kuo ,  Jui-Te Chiu

    IPC分类号： H04N5/378 ,  H04N5/353 ,  H04N5/357 ,  H03M1/36 ,  H03M1/56

    摘要： A column parallel ADC circuit includes: plural column ADCs and a digital processing circuit. The plural column ADCs generate respective plural digital counts. The plural column ADCs include a first column ADC and a second column ADC. The first column ADC generates a first digital count according to a first analog signal, and the second column ADC generates a second digital count according to a second analog signal. The first digital count is a difference between a first digital signal and a second digital signal. The first and the second digital signals correspond to the first and the second analog signals respectively. The digital processing circuit generates the plural digital signals, wherein the digital processing circuit generates the first digital signal according to the first digital count and the second digital signal.

    Proximity sensor including enclosed accomodation space with sealed light passage and manufacturing method thereof
    79.
    发明授权
    Proximity sensor including enclosed accomodation space with sealed light passage and manufacturing method thereof 有权

    公开(公告)号：US10969472B2

    公开(公告)日：2021-04-06

    申请号：US16829261

    申请日：2020-03-25

    申请人： PixArt Imaging Incorporation

    发明人： Nientse Chen

    IPC分类号： G01S17/02 ,  G01S7/481 ,  G01S17/04

    摘要： A proximity sensor includes: a transmitter unit for transmitting a light signal; a receiver unit for receiving the light signal reflected by an object to determine a proximity status of the object; and a housing defining a first enclosed accommodation space for accommodating the receiver unit, wherein the portion of the housing which defines the first enclosed accommodation space has a sealed light passage made of a light-transmissible material such that the receiver unit is capable of receiving the light signal reflected by the object through the light passage. The housing can further include a second enclosed accommodation space for accommodating the transmitter unit.