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    • 1. 发明专利
    • Image control apparatus
    • 图像控制装置
    • JP2010276686A
    • 2010-12-09
    • JP2009126539
    • 2009-05-26
    • Renesas Electronics Corpルネサスエレクトロニクス株式会社
    • KASUGA TAKAFUMIKATO YOSHIYUKIISHIDA RYOHEIHAMADA MASAKITORII AKIRA
    • G09G5/00G09G5/36H04N11/04H04N19/00H04N19/12H04N19/154H04N19/182H04N19/186H04N19/196H04N19/34H04N19/423H04N19/59
    • PROBLEM TO BE SOLVED: To provide an image control apparatus for encoding image data to reduce a data transfer amount of a memory while suppressing deterioration of image quality.
      SOLUTION: A format conversion part 10 divides each pixel component of image data 2 of a first format expressing gradation of each pixel component with a plurality of bits into a prescribed bit group, and couples the bit group on the basis of bit depth to be converted into the image data of a second format. An image encoding part 20 encodes the image data converted into a format with a plurality of encoding methods, and selects the encoding method in response to image quality indexes of encoding data to output corresponding encoding data. A memory input control part 30 assigns a memory region storing a plurality of the pixel components composing the image data of the second format in response to a selected encoding method to be collectively stored in each of the plurality of the pixel components. Thus, the memory transfer amount is reduced when being decoded while suppressing deterioration of image quality.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:提供一种用于对图像数据进行编码的图像控制装置,以减少存储器的数据传送量,同时抑制图像质量的劣化。 解决方案:格式转换部分10将表示具有多个比特的每个像素分量的灰度的第一格式的图像数据2的每个像素分量划分为规定的比特组,并且基于比特深度来耦合比特组 被转换为第二格式的图像数据。 图像编码部20对被转换成具有多种编码方式的格式的图像数据进行编码,并根据编码数据的图像质量指标选择编码方式,输出对应的编码数据。 存储器输入控制部分30响应于所选择的编码方法分配存储组成第二格式的图像数据的多个像素分量的存储区域,以被集中存储在多个像素分量中的每一个中。 因此,在抑制图像质量劣化的同时进行解码时,存储器传送量减少。 版权所有(C)2011,JPO&INPIT
    • 2. 发明专利
    • Display control unit, display control method, and display control program
    • 显示控制单元,显示控制方法和显示控制程序
    • JP2012128313A
    • 2012-07-05
    • JP2010281369
    • 2010-12-17
    • Renesas Electronics Corpルネサスエレクトロニクス株式会社
    • HAMADA MASAKIKATO YOSHIYUKITORII AKIRA
    • G09G5/397G09G3/20G09G5/00G09G5/399
    • PROBLEM TO BE SOLVED: To provide a display control unit that can easily suppress dropped frames.SOLUTION: A display control unit 1 retrieves pixel data from an A plane and a B plane in a frame buffer 6 in turn, converts the retrieved pixel data into image signals, and outputs a line displaying signal indicating the number of a line of a screen that is being displayed among the multiple lines of the screen in an image display device 11. On the other hand, among the pixel data stored in a memory field, the A plane or the B plane, in which the pixel data are being retrieved, the display control unit 1 replaces already-retrieved pixel data with new pixel data on a line of which number is smaller than the number indicated by the line displaying signal in turn. Thus, retrieving or overwriting pixel data can be performed in parallel in the A plane or the B plane, thus, the performance of data write for the pixel data can be improved.
    • 要解决的问题:提供能够容易地抑制落下的帧的显示控制单元。 解决方案:显示控制单元1依次从帧缓冲器6中的A平面和B平面检索像素数据,将所检索的像素数据转换为图像信号,并输出表示行数的行显示信号 在图像显示装置11中在屏幕的多行之间显示的屏幕。另一方面,存储在存储区域中的像素数据中的像素数据是A平面或B平面 正在检索时,显示控制单元1依次在其数量小于行显示信号所指示的行的行上用新的像素数据替换已经检索的像素数据。 因此,可以在A平面或B平面中并行地执行检索或重写像素数据,从而可以提高对像素数据的数据写入的性能。 版权所有(C)2012,JPO&INPIT