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    • 54. 发明申请
    • Plasma display apparatus and image processing method thereof
    • 等离子显示装置及其图像处理方法
    • US20050232508A1
    • 2005-10-20
    • US11104597
    • 2005-04-13
    • Jun Lee
    • Jun Lee
    • G09G3/20G09G3/28G06K9/40
    • G09G3/2022G09G3/2044G09G3/2059G09G3/2803G09G2320/0261G09G2320/0266
    • Disclosed herein are a plasma display apparatus and an image processing method thereof for preventing images from blurring when processing the images to improve image quality. The plasma display apparatus includes a low pass filter. The low pass filter includes a filtering value generation part for generating a filtering value to be allocated to the central cell in a block using gray scale values of a video signal, which are allocated to a plurality of cells segmented into unit blocks, a filtering determination part for comparing a difference between the filtering value and the gray scale value of the video signal, which is allocated to the central cell, with a predetermined threshold value to determine whether filtering is performed or not, and a filtering performing part for allocating the filtering value to the central cell when the difference is smaller than the predetermined threshold value.
    • 这里公开了等离子体显示装置及其图像处理方法,用于在处理图像时防止图像模糊以提高图像质量。 等离子体显示装置包括低通滤波器。 低通滤波器包括:滤波值生成部,用于使用分配给分割为单位块的多个单元的视频信号的灰度值来生成要分配给块中的中央单元的滤波值;滤波确定 将分配给中央单元的视频信号的滤波值和灰度值之间的差与预定阈值进行比较以确定是否执行滤波的部分,以及用于分配滤波的滤波执行部分 当所述差小于所述预定阈值时,所述中央单元的值。
    • 57. 发明申请
    • Rate-13/15 maximum transition run code encoding and decoding method and apparatus
    • Rate-13/15最大过渡码编码和解码方法及装置
    • US20050174262A1
    • 2005-08-11
    • US11031529
    • 2005-01-10
    • Jun LeeJoo-hyun LeeKyu-suk LeeJae-jin Lee
    • Jun LeeJoo-hyun LeeKyu-suk LeeJae-jin Lee
    • G11B20/10G11B20/14H03M5/14H03M7/00
    • H03M5/145G11B20/1426G11B2020/1434G11B2020/1446
    • Provided are a rate 13/15 MTR code encoding/decoding method and apparatus. The encoding method includes: generating a predetermined rate-13/15 MTR code in which 13-bit data corresponds to 15-bit data; outputting input 13-bit data as a 15-bit codeword according to the rate-13/15 MTR code; checking whether codewords satisfy a predetermined constraint condition by connecting the 15-bit codeword and a subsequent 15-bit codeword; and converting specific bits of the codewords if the codewords violate the constraint condition and not converting the codewords if the codewords do not violate the constraint condition. The rate-13/15 MTR (j=2, k=8) code includes: 8192 codewords obtained to prevent the number of consecutive transitions from becoming 3 at code boundaries in a modulation coding process. Data can be reliably reproduced with high write density, and a large amount of data can be stored in and reproduced from a magnetic recording information storage medium.
    • 提供了一种速率13/15的MTR码编码/解码方法和装置。 编码方法包括:生成13比特数据对应于15比特数据的预定速率-13 / 15MTR码; 根据速率-13 / 15MTR码输出13位数据作为15位码字; 通过连接15位码字和随后的15位码字来检查码字是否满足预定约束条件; 以及如果所述码字违反所述约束条件并且如果所述码字不违反所述约束条件则不转换所述码字,则转换所述码字的特定比特。 速率-13 / 15MTR(j = 2,k = 8)码包括:8192个码字,用于防止在调制编码过程中在码边界处连续转换的数量变为3。 可以以高写入密度可靠地再现数据,并且可以将大量数据存储在磁记录信息存储介质中并从磁记录信息存储介质再现。
    • 59. 发明申请
    • Apparatus and method for driving plasma display panel
    • 用于驱动等离子体显示面板的装置和方法
    • US20050140582A1
    • 2005-06-30
    • US11008674
    • 2004-12-10
    • Jun LeeJeong ChoiSeong Park
    • Jun LeeJeong ChoiSeong Park
    • H04N5/66G09G3/20G09G3/28G09G3/288G09G3/296G09G3/298
    • G09G3/2037G09G3/2033G09G3/2051G09G3/288G09G3/298G09G2320/0266G09G2320/0626G09G2320/0666
    • Disclosed herein is an apparatus for driving a plasma display panel in which a gray scale inversion phenomenon can be prevented. According to the present invention, the apparatus for driving the PDP includes an error diffusion unit for diffusing error of data received from an inverse gamma correction unit, a gray scale inversion check unit connected to the inverse gamma correction unit, for checking whether a gray scale value of the data received from the inverse gamma correction unit is a gray scale value where a gray scale inversion phenomenon is generated, and generating a 1-bit control signal according to the check result, an adder disposed between the error diffusion unit and the gray scale inversion check unit, for adding the 1-bit control signal to lower bits of the data received from the error diffusion unit, and a dithering unit for performing dithering by using the lower bits received from the adder. Therefore, when dithering is performed on data where gray scale inversion is generated, a gray scale value can be improved by adding 1 to lowest bits of the data. It is thus possible to prevent the gray scale inversion phenomenon.
    • 本文公开了一种用于驱动等离子体显示面板的装置,其中可以防止灰度反转现象。 根据本发明,用于驱动PDP的装置包括用于扩散从反伽马校正单元接收的数据的误差的误差扩散单元,连接到反伽马校正单元的灰度反转检查单元,用于检查灰度级 从反伽马校正单元接收的数据的值是产生灰度反转现象的灰度值,并且根据检查结果产生1位控制信号,设置在误差扩散单元和灰度之间的加法器 用于将1位控制信号添加到从误差扩散单元接收的数据的较低位;以及抖动单元,用于通过使用从加法器接收的低位执行抖动。 因此,当对生成灰度反转的数据进行抖动时,可以通过将1加到数据的最低位来提高灰度值。 因此可以防止灰度反转现象。