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    • 3. 发明授权
    • Flat panel display, image correction circuit and method of the same
    • 平板显示器,图像校正电路及其方法相同
    • US07639222B2
    • 2009-12-29
    • US11163088
    • 2005-10-04
    • Yi-Cheng ChenHsin-Chung HuangHung-Shiang Chen
    • Yi-Cheng ChenHsin-Chung HuangHung-Shiang Chen
    • G09G3/36
    • G09G3/3685G09G3/20G09G2320/0271G09G2320/041G09G2320/0673
    • A flat panel display, an image correction circuit and method thereof are provided. The image correction circuit mainly includes a digital to analog conversion unit and a data processing unit. The digital to analog conversion unit includes a temperature sensor and a gamma voltage generator. The gamma voltage generator is adopted for generating a plurality of gamma voltages, and the temperature sensor is electrically connected to the gamma voltage generator and adopted for sensing the working temperature of the gamma voltage generator. The data processing unit is electrically connected to the digital to analog conversion unit. When the working temperature of the gamma voltage generator changes to higher (or lower) than the room temperature, the data processing unit selects and outputs applicable digital data to the digital to analog conversion unit. Therefore, the digital to analog conversion unit outputs a predetermined gamma voltage at room temperature according to the digital data.
    • 提供了平板显示器,图像校正电路及其方法。 图像校正电路主要包括数模转换单元和数据处理单元。 数模转换单元包括温度传感器和伽玛电压发生器。 伽马电压发生器用于产生多个伽马电压,温度传感器与γ电压发生器电连接,用于感测伽马电压发生器的工作温度。 数据处理单元电连接到数模转换单元。 当伽马电压发生器的工作温度变为比室温更高(或更低)时,数据处理单元选择并输出适用的数字数据到数模转换单元。 因此,数模转换单元根据数字数据在室温下输出预定的伽马电压。
    • 7. 发明授权
    • Electrical-device-implemented image coding method
    • 电器设备实现的图像编码方法
    • US08331707B2
    • 2012-12-11
    • US12897801
    • 2010-10-05
    • Tsung-Han TsaiYu-Hsuan LeeYi-Cheng Chen
    • Tsung-Han TsaiYu-Hsuan LeeYi-Cheng Chen
    • G06K9/36
    • H04N19/14H04N19/105H04N19/176H04N19/593
    • An electrical-device-implemented image coding method includes: a raw block is obtained from an image. There are a max pixel value and a min pixel value among the raw pixel values of the image. A first difference sum, which is sum of differences between the raw pixel values and the max pixel value respectively, are calculated. A second difference sum, which is sum of differences between the raw pixel values and the min pixel value respectively, are calculated. If the first difference sum is not smaller than the second difference sum, each of the residue values is calculated by subtracting the min pixel value from the corresponding raw pixel value. Otherwise, each of the residue values is calculated by subtracting the corresponding raw pixel value from the max pixel value. Each of the residue values is encoded into a compressed codeword. A bit stream is generated according to the compressed codewords.
    • 电气设备实现的图像编码方法包括:从图像获得原始块。 在图像的原始像素值中存在最大像素值和最小像素值。 计算分别是原始像素值和最大像素值之间的差的和的第一差值和。 计算第二差值和,其分别是原始像素值和最小像素值之间的差的总和。 如果第一差值和不小于第二差值和,则通过从相应的原始像素值减去最小像素值来计算残差值。 否则,通过从最大像素值中减去相应的原始像素值来计算每个残差值。 每个残差值被编码成压缩码字。 根据压缩码字生成比特流。