Multi-channel audio signal processing
    1.
    发明授权
    Multi-channel audio signal processing 有权
    多声道音频信号处理

    公开(公告)号:US08638948B2

    公开(公告)日:2014-01-28

    申请号:US13070613

    申请日:2011-03-24

    IPC分类号: H04R5/00

    CPC分类号: H04S1/00

    摘要: The invention relates to multi-channel audio signal processing, in particular to a method of processing a multi-channel audio signal and to a signal processing device. A method of processing a multi-channel audio signal is disclosed, comprising the steps of: receiving an input sum signal (s) representing a sum of a first audio signal and a second audio signal; receiving an input difference signal (d) representing a difference between the first and second audio signals; decorrelating the sum signal to provide a decorrelated sum signal (sd); calculating a first gain (gs) from a cross-correlation of the sum and difference signals (s,d) and the power of the sum signal; calculating a second gain (gsd) from a cross-correlation of the sum and difference signals (s,d) and the power of the sum and difference signals; calculating an output difference signal (d′) from a sum of the first gain (gs) applied to the sum signal (s) and the second gain (gsd) applied to the decorrelated sum signal (sd); and providing an output stereo audio signal (l,r) from a combination of the output difference signal (d′) and the input sum signal (s).

    摘要翻译: 本发明涉及多声道音频信号处理,特别涉及处理多声道音频信号和信号处理装置的方法。 公开了一种处理多声道音频信号的方法,包括以下步骤:接收表示第一音频信号和第二音频信号之和的输入和信号; 接收表示第一和第二音频信号之间的差的输入差分信号(d); 去相关和信号以提供去相关和信号(sd); 根据和信号(s,d)和和信号的功率的互相关计算第一增益(gs); 根据和差信号(s,d)和和差信号的功率的互相关计算第二增益(gsd); 从施加到和信号的第一增益(gs)和施加到去相关和信号(sd)的第二增益(gsd)之和计算输出差信号(d'); 以及从所述输出差分信号(d')和所述输入和信号的组合提供输出立体声音频信号(l,r)。

    MULTI-CHANNEL AUDIO SIGNAL PROCESSING
    2.
    发明申请
    MULTI-CHANNEL AUDIO SIGNAL PROCESSING 有权
    多通道音频信号处理

    公开(公告)号:US20110235809A1

    公开(公告)日:2011-09-29

    申请号:US13070613

    申请日:2011-03-24

    IPC分类号: H04R5/00

    CPC分类号: H04S1/00

    摘要: The invention relates to multi-channel audio signal processing, in particular to a method of processing a multi-channel audio signal and to a signal processing device. A method of processing a multi-channel audio signal is disclosed, comprising the steps of: receiving an input sum signal (s) representing a sum of a first audio signal and a second audio signal; receiving an input difference signal (d) representing a difference between the first and second audio signals; decorrelating the sum signal to provide a decorrelated sum signal (sd); calculating a first gain (gs) from a cross-correlation of the sum and difference signals (s,d) and the power of the sum signal; calculating a second gain (gsd) from a cross-correlation of the sum and difference signals (s,d) and the power of the sum and difference signals; calculating an output difference signal (d′) from a sum of the first gain (gs) applied to the sum signal (s) and the second gain (gsd) applied to the decorrelated sum signal (sd); and providing an output stereo audio signal (l,r) from a combination of the output difference signal (d′) and the input sum signal (s).

    摘要翻译: 本发明涉及多声道音频信号处理,特别涉及处理多声道音频信号和信号处理装置的方法。 公开了一种处理多声道音频信号的方法,包括以下步骤:接收表示第一音频信号和第二音频信号之和的输入和信号; 接收表示第一和第二音频信号之间的差的输入差分信号(d); 去相关和信号以提供去相关和信号(sd); 根据和信号(s,d)和和信号的功率的互相关计算第一增益(gs); 根据和差信号(s,d)和和差信号的功率的互相关计算第二增益(gsd); 从施加到和信号的第一增益(gs)和施加到去相关和信号(sd)的第二增益(gsd)之和计算输出差信号(d'); 以及从所述输出差分信号(d')和所述输入和信号的组合提供输出立体声音频信号(l,r)。

    Method of driving a foil display screen and device having such a display screen
    3.
    发明申请
    Method of driving a foil display screen and device having such a display screen 审中-公开
    驱动箔显示屏的方法和具有这种显示屏的装置

    公开(公告)号:US20060152476A1

    公开(公告)日:2006-07-13

    申请号:US10507774

    申请日:2003-02-18

    IPC分类号: G09G3/34

    摘要: The invention relates to a method of controlling a display screen, particularly a foil display built up of a number of lines, the display screen comprising at least one light source, a movable element, and selection means for locally bringing the movable element into contact with the light source, in which the selection means comprise row and column electrodes and means for applying control voltage signals to the invention also relates to a display source, a movable element, and selection means for locally bringing the movable element into contact with the light source, in which the selection means comprise row and column electrodes and means for applying control voltage signals to the row and column electrodes. Because of a minimum switching time of pixels, not all pixels, i.e. lines can be activated immediately when the display screen is addressed line by line. To avoid this problem, the invention provides a novel addressing method comprising the step of addressing a group of lines or a part of a group of lines while the light source is switched off, followed by a step of illuminating the display screen for a predetermined interval by switching on the light source.

    摘要翻译: 本发明涉及一种控制显示屏幕的方法,特别是由多条线构成的箔片显示器,显示屏幕包括至少一个光源,可移动元件和用于局部地使可移动元件与 其中选择装置包括行和列电极的光源和用于向本发明施加控制电压信号的装置还涉及显示源,可移动元件和用于局部地使可移动元件与光源接触的选择装置 ,其中选择装置包括行和列电极以及用于向行电极和列电极施加控制电压信号的装置。 由于像素的最小切换时间,并不是所有的像素,即当显示屏逐行寻址时,线可以被立即激活。 为了避免这个问题,本发明提供了一种新颖的寻址方法,包括在光源关闭时寻址一组线或一组线的一部分的步骤,随后是以预定间隔照亮显示屏幕的步骤 通过打开光源。

    Display device comprising an optical waveguide plate and method of operating for the same
    4.
    发明申请
    Display device comprising an optical waveguide plate and method of operating for the same 失效
    包括光波导板的显示装置及其操作方法

    公开(公告)号:US20050013582A1

    公开(公告)日:2005-01-20

    申请号:US10496418

    申请日:2002-11-12

    摘要: The display device (1) comprises picture elements (5) arranged in substantially parallel lines (6) on a display panel (2), and selection means (3) for controlling the decoupling of light from an optical waveguide plate at the picture elements. The selection means (3) are arranged for multiline addressing of the picture elements (5). For displaying gray scales, image information (4) is decomposed into a number of subfields (13) which are displayed. The time efficiency of the addressing of picture elements (5) in lines (16) in the subfields (13) is increased, enabling the display device (1) to display a relative large number of gray scales. The method of operating a display device (1) is carried out when the device is in operation.

    摘要翻译: 显示装置(1)包括在显示面板(2)上以基本上平行的线(6)布置的图像元素(5),以及用于控制在图像元件处从光波导板解耦光的选择装置(3)。 选择装置(3)被布置用于图像元素(5)的多行寻址。 为了显示灰度级,将图像信息(4)分解为显示的多个子场(13)。 子场(13)中的行(16)中的图像元素(5)的寻址的时间效率增加,使得显示设备(1)能够显示相对大量的灰度级。 操作显示装置(1)的方法在设备运行时进行。

    Display device comprising an optical waveguide plate and method of operating for the same
    5.
    发明授权
    Display device comprising an optical waveguide plate and method of operating for the same 失效
    包括光波导板的显示装置及其操作方法

    公开(公告)号:US07003210B2

    公开(公告)日:2006-02-21

    申请号:US10496418

    申请日:2002-11-12

    IPC分类号: G02B6/00

    摘要: The display device (1) comprises picture elements (5) arranged in substantially parallel lines (6) on a display panel (2), and selection means (3) for controlling the decoupling of light from an optical waveguide plate at the picture elements. The selection means (3) are arranged for multiline addressing of the picture elements (5). For displaying gray scales, image information (4) is decomposed into a number of subfields (13) which are displayed. The time efficiency of the addressing of picture elements (5) in lines (16) in the subfields (13) is increased, enabling the display device (1) to display a relative large number of gray method of operating a display device (1) is carried out when the device is in operation.

    摘要翻译: 显示装置(1)包括在显示面板(2)上以基本上平行的线(6)布置的图像元素(5),以及用于控制在图像元件处从光波导板解耦光的选择装置(3)。 选择装置(3)被布置用于图像元素(5)的多行寻址。 为了显示灰度级,将图像信息(4)分解为显示的多个子场(13)。 在子场(13)中的行(16)中的图像元素(5)的寻址的时间效率增加,使得显示设备(1)能够显示操作显示设备(1)的相对大量的灰色方法, 在设备运行时进行。