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    • 2. 发明授权
    • Method for encoding digital audio signals and apparatus thereof
    • 数字音频信号编码方法及其装置
    • US5673289A
    • 1997-09-30
    • US360354
    • 1994-12-21
    • Sang-wook KimYeon-bae KimYang-seock Seo
    • Sang-wook KimYeon-bae KimYang-seock Seo
    • G11B20/10G10L11/00G10L19/00G10L19/02G11B20/00H03M7/30H04B1/66H04B14/04
    • H04B1/665
    • A method and an apparatus for encoding a digital audio signal are provided. The method comprises the steps of: mapping the digital audio signal into a plurality of sub-bands and outputting the mapped sub-band signals; allocating a number of bits to each sub-band signal according to human psychoacoustic properties, on the basis of the mapped sub-band signals; compensating each sub-band signal by receiving a transmitted previous quantized error, quantizing the compensated sub-band signals according to the corresponding allocated bit number, and transferring the current quantized error to the next quantization; and forming a transmit bit stream in frame units from the quantized data. Therefore, the quantized error generated during encoding of the audio signal is can be minimized.
    • 提供了一种用于对数字音频信号进行编码的方法和装置。 该方法包括以下步骤:将数字音频信号映射成多个子带并输出映射的子带信号; 基于映射的子带信号,根据人心理声学特性向每个子带信号分配多个比特; 通过接收发送的先前量化误差来补偿每个子带信号,根据对应的分配的比特数对补偿的子带信号进行量化,并将当前的量化误差传送到下一个量化; 以及从量化数据以帧为单位形成发送比特流。 因此,可以使在音频信号的编码期间产生的量化误差最小化。
    • 5. 发明申请
    • APPARATUS AND METHOD OF CONTROLLING BRIGHTNESS OF IMAGE
    • 控制图像亮度的装置和方法
    • US20070268222A1
    • 2007-11-22
    • US11835907
    • 2007-08-08
    • Seong-deok LeeChang-yeong KimYang-seock SeoYong-in Han
    • Seong-deok LeeChang-yeong KimYang-seock SeoYong-in Han
    • G09G3/22
    • H04N9/77H04N9/68
    • Provided are an image brightness controlling apparatus and method, and an adaptive brightness controlling apparatus and method based on the brightness degree and/or brightness range of an image. The image brightness controlling apparatus includes a brightness increment arithmetic unit for outputting a brightness increment for a pixel, and an individual component brightness increment arithmetic unit for outputting the brightness increments of individual components constituting the pixel in response to the brightness increment for a pixel. The individual component brightness increment arithmetic unit multiplies the brightness increment of the pixel by each of the unit vectors of the components constituting the pixel to obtain the brightness increments of the individual components. The image brightness controlling apparatus further includes an adder for adding the components constituting the pixel to the brightness increments of the components. The image brightness controlling apparatus and the adaptive image brightness controlling apparatus can maintain the sense of color of an image (e.g., the hue or chroma of an image) while increasing the brightness degree and brightness range of an image.
    • 提供了一种图像亮度控制装置和方法,以及基于图像的亮度和/或亮度范围的自适应亮度控制装置和方法。 图像亮度控制装置包括用于输出像素的亮度增量的亮度增量运算单元和用于响应于像素的亮度增量而输出构成像素的各个分量的亮度增量的单独分量亮度增量运算单元。 单个分量亮度增量算术单元将构成像素的分量的每个单位向量的像素的亮度增量相乘以获得各个分量的亮度增量。 图像亮度控制装置还包括用于将构成像素的分量与分量的亮度增量相加的加法器。 图像亮度控制装置和自适应图像亮度控制装置可以在增加图像的亮度和亮度范围的同时,保持图像的颜色感(例如,图像的色相或色度)。
    • 9. 发明授权
    • Method and apparatus for generating white component and controlling the brightness in display devices
    • 用于产生白色分量并控制显示装置中的亮度的方法和装置
    • US06876764B2
    • 2005-04-05
    • US10376485
    • 2003-03-03
    • Seong-deok LeeChang-young KimDu-sik ParkYang-seock SeoJeong-yeop Kim
    • Seong-deok LeeChang-young KimDu-sik ParkYang-seock SeoJeong-yeop Kim
    • H04N9/68G06K9/00G09G1/28G09G3/20G09G5/02G09G5/10H04N9/64H04N9/67H04N9/77
    • G09G5/02H04N9/646H04N9/67
    • A method and apparatus for generating a white signal component and for controlling the brightness of an image are provided. In the above method and apparatus, the brightness increases of Red, Green and Blue, the saturations of which are not decreased from an input image are calculated using a vector, and the minimum value of such increases is utilized as the input value for the white component. Further, by adding brightness control components of RGB color to the input RGB signals, brightness increases in the direction of the original colors instead of the achromatic one are possible, which is the way the white component is added so as to increase the luminance of color display devices representing a color using a color filter such a flat panel display. Accordingly, a color saturation of the image is not decreased even with addition of the achromatic color component. In other words, in converting a signal from the three colors such as RGB into the four colors inclusive of white component, the present invention is capable of increasing the brightness without reduction of saturation as well as extracting the white component in an easy and efficient way, which enhances the performance of image processing apparatuses such as color display devices and the like.
    • 提供了一种用于产生白色信号分量并用于控制图像的亮度的方法和装置。 在上述方法和装置中,红色,绿色和蓝色的亮度增加使用向量计算其输入图像的饱和度不降低,并且这种增加的最小值被用作白色的输入值 零件。 此外,通过向输入的RGB信号添加RGB颜色的亮度控制分量,可以在原色方向上增加亮度而不是消色差,这是添加白色分量以增加颜色亮度的方式 使用诸如平板显示器的滤色器表示颜色的显示设备。 因此,即使添加无彩色成分,也不会降低图像的色彩饱和度。 换句话说,在将诸如RGB的三种颜色的信号转换为包括白色分量的四种颜色的情况下,本发明能够在不降低饱和度的同时提高亮度以及以简单有效的方式提取白色分量 ,这增强了诸如彩色显示装置等的图像处理装置的性能。