公开(公告)号：US07609325B2

公开(公告)日：2009-10-27

申请号：US11274987

申请日：2005-11-15

申请人： Seok-Jun Park ,  Gwang-Sun Lee ,  Yong-In Han ,  Jung-Tae Kim

发明人： Seok-Jun Park ,  Gwang-Sun Lee ,  Yong-In Han ,  Jung-Tae Kim

IPC分类号： H04N5/46

CPC分类号： H04N5/2628 ,  H04N7/0122

摘要： A method and an apparatus for calculating source image coordinates. In an embodiment, a variation rate of the source image coordinate with respect to a converted image coordinate is calculated by a recursive computation, and variation rates are accumulated to obtain the source image coordinate. Because the converted image coordinate sequentially increases one-by-one, the variation rate may be obtained by using adding operations of previously obtained source image coordinate, rather than multiplying operations with the all of the converted image coordinates. Therefore, the source image coordinates may simply and effectively be calculated.

摘要翻译： 一种用于计算源图像坐标的方法和装置。 在一个实施例中，通过递归计算来计算相对于转换图像坐标的源图像坐标的变化率，并且累积变化率以获得源图像坐标。 由于转换的图像坐标依次逐渐增加，所以可以通过使用先前获得的源图像坐标的相加运算而不是将运算与所有转换的图像坐标相乘来获得变化率。 因此，可以简单有效地计算源图像坐标。

公开(公告)号：US20060103680A1

公开(公告)日：2006-05-18

申请号：US11274987

申请日：2005-11-15

申请人： Seok-Jun Park ,  Gwang-Sun Lee ,  Yong-In Han ,  Jung-Tae Kim

发明人： Seok-Jun Park ,  Gwang-Sun Lee ,  Yong-In Han ,  Jung-Tae Kim

IPC分类号： G09G5/00

CPC分类号： H04N5/2628 ,  H04N7/0122

摘要： A method and an apparatus for calculating source image coordinates. In an embodiment, a variation rate of the source image coordinate with respect to a converted image coordinate is calculated by a recursive computation, and variation rates are accumulated to obtain the source image coordinate. Because the converted image coordinate sequentially increases one-by-one, the variation rate may be obtained by using adding operations of previously obtained source image coordinate, rather than multiplying operations with the all of the converted image coordinates. Therefore, the source image coordinates may simply and effectively be calculated.

公开(公告)号：US07400311B2

公开(公告)日：2008-07-15

申请号：US10697207

申请日：2003-10-30

申请人： Seok-joon Park ,  Hwan-sang Roh ,  Yong-joon Jung ,  Kwang-whui Cho ,  Yong-in Han ,  Gwang-sun Lee

发明人： Seok-joon Park ,  Hwan-sang Roh ,  Yong-joon Jung ,  Kwang-whui Cho ,  Yong-in Han ,  Gwang-sun Lee

IPC分类号： G09G3/36

CPC分类号： G09G3/3611 ,  G09G2320/0252 ,  G09G2340/16

摘要： A response time accelerator and method for driving a liquid crystal display (LCD) are provided. According to the response time accelerator for driving an LCD, an acceleration unit reads previous data Pn−1 corresponding to input current data Pn from a frame memory unit that updates and stores one or more frames of previous data Pn−1. The acceleration unit then reads predetermined mapped panel output value TPO, predetermined mapped panel characteristic value TpPn, and flag information corresponding to the previous data Pn−1 and current data Pn from a table memory unit that stores predetermined mapped panel output values TPOs, predetermined mapped panel characteristic values TpPns, and flag information corresponding to the predetermined mapped panel characteristic values TpPns, and decodes the read information. The acceleration unit performs interpolations on the decoded mapped panel output value TPO and mapped panel characteristic value TpPn according to the flag information, and generates liquid crystal panel data PO to be output to a liquid crystal panel and previous data of a next frame pPn to be output to the frame memory unit. Thus, the response time accelerator and method make it possible to improve the response time of the liquid crystal even with respect to image data with extremely large or small gray level value.

摘要翻译： 提供了用于驱动液晶显示器（LCD）的响应时间加速器和方法。 根据用于驱动LCD的响应时间加速器，加速单元从更新并存储先前数据Pn-1的一个或多个帧的帧存储器单元读取与输入当前数据Pn对应的先前数据Pn-1。 然后，加速单元从存储预定的映射面板输出值TPO的表存储器单元读取预定映射面板输出值TPO，预定映射面板特性值TpPn以及与先前数据Pn-1对应的标志信息和当前数据Pn，预定映射 面板特征值TpPns和对应于预定映射面板特征值TpPns的标志信息，并对读取的信息进行解码。 加速单元根据标志信息对解码的映射面板输出值TPO和映射面板特性值TpPn进行内插，并生成要输出到液晶面板的液晶面板数据PO和下一帧pPn的先前数据为 输出到帧存储器单元。 因此，响应时间加速器和方法即使对于具有极大或小的灰度值的图像数据，也可以改善液晶的响应时间。