专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明专利

JP2008067343A Color correction circuit, drive device, and display device 审中-公开
标题翻译：彩色校正电路，驱动装置和显示装置
公开(公告)号：JP2008067343A
公开(公告)日：2008-03-21
申请号：JP2007021317
申请日：2007-01-31
申请人： Seiko Instruments Inc , セイコーインスツル株式会社
发明人： NOGAWA SHINICHI , MATSUSHIMA KENICHI
IPC分类号： H04N9/69 , H04N9/30
摘要： PROBLEM TO BE SOLVED: To provide a color correction circuit, by which when calculating image data so as to obtain the most appropriate display color in a color display device, a color correction in which gradation unevenness due to the decrease in the resolution and color unevenness will not be generated, and the display color will not vary for each display device, and a plurality of color correction modes, can be set by using a single display device.
SOLUTION: When RGB image data is converted into linear data by a pre-gamma circuit, the number of bits of the image data is increased by two or more than two bits to improve a resolution thereof and then a matrix operation is performed. Data conversion of an operation result is performed by a post-gamma circuit, and the converted data is stored in an image RAM. A dither circuit is provided between the post-gamma circuit and the image RAM and gradation unevenness or color unevenness is eliminated with an area gradation by a dither circuit. A color variation of each display device is stored in a PROM as a fine adjustment coefficient of a matrix operation unit, to provide a display device having no color variation. A display device is provided in which a plurality of color correction modes can be set by simple switching.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种颜色校正电路，通过该颜色校正电路，当计算图像数据以获得彩色显示装置中最合适的显示颜色时，由于分辨率降低导致的灰度不均匀性的颜色校正并且不会产生颜色不均匀，并且显示颜色对于每个显示装置不会变化，并且可以通过使用单个显示装置来设置多个颜色校正模式。解决方案：当RGB图像数据通过预伽马电路转换为线性数据时，图像数据的位数增加2位或2位以上以提高其分辨率，然后进行矩阵运算。操作结果的数据转换由伽玛后电路执行，转换的数据被存储在图像RAM中。在伽玛后电路和图像RAM之间设置有抖动电路，并且通过抖动电路的区域灰度来消除灰度不均匀或颜色不均匀。每个显示装置的颜色变化被存储在PROM中作为矩阵运算单元的微调系数，以提供不具有颜色变化的显示装置。提供一种显示装置，其中可以通过简单的切换来设置多个颜色校正模式。版权所有（C）2008，JPO＆INPIT

32. 发明专利

JP4058645B2 Television, signal processing method of the display device and a display device 有权
公开(公告)号：JP4058645B2
公开(公告)日：2008-03-12
申请号：JP2005136642
申请日：2005-05-09
申请人：船井電機株式会社
发明人：真一大野
IPC分类号： H04N9/73 , H04N9/69

33. 发明专利

JP4058420B2 The video signal correction method and the video signal correction unit 有权
公开(公告)号：JP4058420B2
公开(公告)日：2008-03-12
申请号：JP2004042487
申请日：2004-02-19
申请人：キヤノン株式会社
发明人：誠司大澤 , 浩平稲村
IPC分类号： H04N1/46 , H04N9/64 , G09G5/10 , H04N1/407 , H04N1/60 , H04N9/68 , H04N9/69 , H04N9/77
CPC分类号： H04N9/68 , H04N1/6027
摘要： The objective of the present invention is to enhance a specific color without changing the hue of an original image. At least two different gray-level correction functions are provided for luminance signals input for three colors, R, G and B, and these functions are used to calculate correction coefficients for the individual colors. Then, the luminance signals input for the three colors are synthesized so that the weighting of the colors is changed in accordance with the input luminance signals, and a correction coefficient is calculated that is used in common. The input signals are then multiplied by the thus obtained correction coefficient.

34. 发明专利

JP4055968B2 Printer gamma correction method, image processing apparatus and a recording medium 失效
公开(公告)号：JP4055968B2
公开(公告)日：2008-03-05
申请号：JP2942998
申请日：1998-02-12
申请人：株式会社リコー
发明人：泰稔太田 , 寿夫白沢
IPC分类号： H04N1/60 , H04N9/69 , G06T5/00 , H04N1/407 , H04N1/46
摘要： PROBLEM TO BE SOLVED: To conduct gamma correction of a printer on a monitor screen without using a measuring instrument. SOLUTION: An image display system 7 allows an output device 4 to print out data 3 of a test image and allows a display device 1 to display the data 3 on a monitor. The operator adjusts a color of the monitored image so that the printed-out image is coincident with the monitored image and stores gamma data after color adjustment to an output device profile 5. The test image desirably includes a color mixture pattern generated from ink including C, M, Y colors.

35. 发明专利

JP4013887B2 An image processing circuit, an image display apparatus and image processing method 有权
公开(公告)号：JP4013887B2
公开(公告)日：2007-11-28
申请号：JP2003370631
申请日：2003-10-30
申请人：セイコーエプソン株式会社
发明人：浩堀内 , 賢次森 , 孝胡桃澤
IPC分类号： G06T5/00 , G03F3/08 , G06K15/00 , G09G3/20 , G09G5/00 , G09G5/06 , G09G5/36 , H04N1/407 , H04N5/20 , H04N9/69 , H04N9/73
CPC分类号： G09G3/20 , G09G3/2051 , G09G2320/0276 , G09G2320/0666 , G09G2340/0428
摘要： Aspects of the invention can provide an image processing circuit for gray scale correction, an image display apparatus, and an image processing method that allow reduction in the storage capacity needed for storing correction characteristics data without increasing clock rate in relation to interpolation processing of correction characteristics. A exemplary image processing circuit according to the invention can be applied, for example, to color correction or gamma correction of color image data. Gray scale correction characteristics data for a number of gray scale levels that is less than the number of gray scale levels of input image data can be stored in first and second lookup table storing units. Considering a gray scale value of a pixel that is being considered for gray scale correction processing as an input gray scale value, the first and second lookup-table storing units are referred to, obtaining an output gray scale value corresponding to the input gray scale value and an output gray scale value corresponding to an adjacent input gray scale value. An adjacent gray scale value refers to a gray scale value that is higher by one or lower by one than another input gray scale value. Then, output gray scale values between these two adjacent output gray scale values can be calculated by linear interpolation, obtaining output values for all input gray scale values. Subsequently, gray scale correction can be performed for each pixel of input image data, outputting corrected image data.

37. 发明专利

JP3960336B2 Image quality adjustment of the image data 有权
公开(公告)号：JP3960336B2
公开(公告)日：2007-08-15
申请号：JP2004522768
申请日：2003-07-18
申请人：セイコーエプソン株式会社
发明人：育央早石
IPC分类号： H04N5/91 , H04N1/60 , H04N5/20 , H04N5/202 , H04N5/225 , H04N5/232 , H04N5/235 , H04N5/238 , H04N5/243 , H04N5/76 , H04N5/907 , H04N5/92 , H04N9/64 , H04N9/69 , H04N101/00
CPC分类号： H04N1/6086 , H04N5/20 , H04N5/202 , H04N5/2354 , H04N5/243 , H04N9/64 , H04N9/69

38. 发明专利

JP3919389B2 Signal processing apparatus and signal processing method 有权
标题翻译：空值
公开(公告)号：JP3919389B2
公开(公告)日：2007-05-23
申请号：JP21264599
申请日：1999-07-27
申请人：キヤノン株式会社
发明人：栄一郎池田
IPC分类号： H04N1/60 , H04N5/202 , G06T5/00 , H04N1/46 , H04N9/69
CPC分类号： H04N9/69
摘要： In a signal processing apparatus which can output a chroma signal of m bits into a chroma signal of n bits via an output apparatus, the chroma signal of m bits is gamma converted into a chroma signal of k bits, the gamma converted chroma signal of k bits is converted into a signal of k bits showing a brightness and a color tone, and the signal converted into the signal of k bits showing the brightness and color tone is converted into a signal of n bits showing a brightness and a color tone. Thus, a signal processing apparatus is provided in which color crush in a high luminance area of an image can be remarkably reduced, and white skip of the image and discoloration are remarkably improved.
摘要翻译：在可以通过输出装置将m位的色度信号输出为n位的色度信号的信号处理装置中，将m位的色度信号伽玛转换为k位的色度信号，将伽马转换的色度信号k 将比特转换成表示亮度和色调的k比特的信号，并将转换成表示亮度和色调的k比特的信号的信号转换成表示亮度和色调的n比特的信号。因此，提供了一种信号处理装置，其中可以显着地减少图像的高亮度区域中的颜色挤压，并且显着地提高了图像的白色跳变和变色。

39. 发明专利

JP3897445B2 Imaging device and an image signal processing method 失效
公开(公告)号：JP3897445B2
公开(公告)日：2007-03-22
申请号：JP8635098
申请日：1998-03-31
申请人：キヤノン株式会社
发明人：雄一郎服部
IPC分类号： H04N5/202 , H04N5/208 , H04N5/232 , H04N9/68 , H04N9/69

40. 发明专利

JP2006314062A Television set, signal processor and signal processing method 有权
标题翻译：电视机，信号处理器和信号处理方法
公开(公告)号：JP2006314062A
公开(公告)日：2006-11-16
申请号：JP2005136642
申请日：2005-05-09
申请人： Funai Electric Co Ltd , 船井電機株式会社
发明人： ONO SHINICHI
IPC分类号： H04N9/73 , H04N9/69
摘要： PROBLEM TO BE SOLVED: To provide a television set in which the image quality is maintained, while making circuit design efficient, and to provide a signal processor and a signal processing method.
SOLUTION: In the television set, an RGB signal generating part 41 adjusts the white balance, and an RGB signal processing part 42 also adjusts the white balance as a part of setting of the image quality. Thus, since saturation of a prescribed color component is less likely to occur without having a margin in the circuit design, the image quality is kept, while making the circuit design efficient.
COPYRIGHT: (C)2007,JPO&INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式