公开(公告)号：US20090096514A1

公开(公告)日：2009-04-16

申请号：US11872667

申请日：2007-10-15

Applicant: Junyi Xu ,  Binfan Liu ,  Vladimir Radionov ,  Weimin Zhang

Inventor： Junyi Xu ,  Binfan Liu ,  Vladimir Radionov ,  Weimin Zhang

IPC: H04B1/10

CPC classification number: H04B1/0475

Abstract: A device and method for canceling or attenuating harmonics noise without distorting the incoming signal. An exemplary device includes the use of an estimation loop to generate an artificial signal to eliminate or attenuate the influence of harmonics. The estimation loop includes a mixer adapted to produce a mixed signal by processing or combining the incoming signal and the artificial signal. The estimation loop includes an error detector, a low-pass filter, a parameter estimator, and a numerically controlled oscillator. The parameter estimator produces information relating to the phase, frequency, and amplitude of an incoming harmonics spur and will be used by the numerically controlled oscillator to generate the artificial signal. If the mixed signal contains relatively low levels of harmonics residuals, the mixed signal is produced at the output in lieu of the incoming signal.

Abstract translation: 用于消除或衰减谐波噪声而不使输入信号失真的装置和方法。 示例性装置包括使用估计环路来产生人造信号以消除或衰减谐波的影响。 估计环路包括适于通过处理或组合输入信号和人造信号来产生混合信号的混频器。 估计回路包括误差检测器，低通滤波器，参数估计器和数控振荡器。 参数估计器产生与输入谐波支路的相位，频率和幅度相关的信息，并由数控振荡器用于产生人为信号。 如果混合信号包含较低水平的谐波残差，则在输出端产生混合信号来代替输入信号。

公开(公告)号：US20050031042A1

公开(公告)日：2005-02-10

申请号：US10888551

申请日：2004-07-09

Applicant: Weimin Zhang ,  Binfan Liu ,  Zhongqiang Wang

Inventor： Weimin Zhang ,  Binfan Liu ,  Zhongqiang Wang

IPC: G06K9/36 ,  H01L20060101 ,  H04N5/00 ,  H04N5/272 ,  H04N7/12 ,  H04N7/26 ,  H04N7/50

CPC classification number: H04N21/2362 ,  H04N19/174 ,  H04N19/423 ,  H04N19/436 ,  H04N19/44 ,  H04N19/61 ,  H04N21/40

Abstract: An MPEG processor is provided. According to one aspect of the processor, multiple MPEG data streams for corresponding channels are individually stored in an off-chip memory. Corresponding data for a channel is then retrieved from the off-chip memory for processing. The retrieved data is then decoded. The decoded results and associated information are stored on the off-chip memory. Some or all of the associated information that can be used for decoding subsequent data is stored in an on-chip memory. When video images need to be displayed, the corresponding data that is needed for that purpose is then retrieved from the off-chip memory and provided to an analog encoder for encoding in a format that is compatible with an analog display device.

Abstract translation: 提供MPEG处理器。 根据处理器的一个方面，用于相应通道的多个MPEG数据流被单独存储在片外存储器中。 然后从芯片外存储器中检索通道的相应数据进行处理。 然后对所检索的数据进行解码。 解码结果和相关信息存储在片外存储器中。 可用于解码后续数据的部分或全部相关信息存储在片上存储器中。 当需要显示视频图像时，然后从片外存储器检索所需的相应数据，并将其提供给与模拟显示装置兼容的格式的模拟编码器进行编码。