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21. 发明公开

EP1045578A2 Filtering of defective picture elements in digital imagers 有权
标题翻译：数字成像器中有缺陷的图像元素的滤波
公开(公告)号：EP1045578A2
公开(公告)日：2000-10-18
申请号：EP00302082.3
申请日：2000-03-15
申请人： Texas Instruments Incorporated
发明人： Chen, Zhiliang Julian, , Dierschke, Eugene G., , Clynes, Steven Derek, , Liu, Anli,
IPC分类号： H04N5/217
CPC分类号： H04N5/3675 , H04N5/16 , H04N5/20 , H04N5/243
摘要： Defective pixels in a CMOS array give rise to spot noise that diminishes the integrity of the resulting image. Because CMOS arrays and digital logic can be fabricated on the same integrated circuit using the same processing technology and relatively inexpensive and fast circuit can be employed to digitally filter the pixel data stream and to identify pixels having values that do not fall in the range defined by the immediately neighboring pixels and the deviate from the neighboring pixels by more than a threshold amount. Such conditions would indicate that the deviation is caused by a defective pixel rather than by desired image data. The threshold amount can be preprogrammed or can be provided by a user or can be dynamically set using feedback indicating image quality. The filter would also provide a solution for other sensors such as CCD.
摘要翻译： CMOS阵列中的有缺陷像素会产生斑点噪声，从而降低所得图像的完整性。因为可以使用相同的处理技术在相同的集成电路上制造CMOS阵列和数字逻辑，并且可以采用相对便宜和快速的电路来数字地过滤像素数据流并且识别具有不落入由直接相邻的像素以及与相邻像素的偏离大于阈值量。这样的条件将表明偏差是由有缺陷的像素而不是由期望的图像数据引起的。阈值量可以被预先编程或者可以由用户提供，或者可以使用指示图像质量的反馈来动态设置。该滤光片还将为诸如CCD等其他传感器提供解决方案。

22. 发明公开

EP0914747A1 BLACK LEVEL DETECTING CIRCUIT OF VIDEO SIGNAL 失效
标题翻译：电路用于检测的视频信号的黑电平Level
公开(公告)号：EP0914747A1
公开(公告)日：1999-05-12
申请号：EP98905723.0
申请日：1998-03-02
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： TAKESHIMA, Masahiro , KAGEYAMA, Atsuhisa
IPC分类号： H04N17 , H04N5
CPC分类号： H04N5/20 , H04N5/16
摘要： A black level detecting circuit compares an input video signal with a current minimum value of input video signals, then detects a difference between the input signal and the current minimum value when the input value is smaller than the current minimum value, and then outputs the detected difference only during a detecting period of the black level, then corrects the minimum value by using this output for renewing the current minimum value, and finally outputs this renewed minimum value as a new minimum value of the input video signal. The black level detecting circuit also latches the minimum value during the vertical blanking pulse and initializes the minimum value during a vertical blanking period so as to detect a black level of the input signal. As such, the black level detecting circuit measures the black level only during a video period, thereby reducing detection errors due to noises, and also an automatic initialization of the minimum value during a blanking period can contribute to a more stable detection of the black level. The black level detected can be used effectively as a control signal over picture quality for each field or each frame.

23. 发明公开

EP0818034A2 BLACK LEVEL SETTING 失效
标题翻译：设置黑VALUE
公开(公告)号：EP0818034A2
公开(公告)日：1998-01-14
申请号：EP97900023.0
申请日：1997-01-16
申请人： PHILIPS ELECTRONICS N.V.
发明人： VAN DEN BROEKE, Leendert, Albertus, Dick
IPC分类号： G09G1 , H04N5 , H04N9 , H04N17
CPC分类号： H04N5/59 , H04N5/16 , H04N9/645 , H04N9/72
摘要： In a method of black level and gain control setting, comprising the steps of applying (42) at least two mutually differing control values (Vd1, Vd2) in a first predetermined ratio, and controlling (35, 3, 7, 15) the black level and gain in response to the at least two mutually differing control values (Vd1, Vd2), at least mutually differing reference values (Iref1, Iref2) in a second predetermined ratio and corresponding to the at least two mutally differing control values (Vd1, Vd2) are applied (47) to the controlling step (35, 3, 7, 15), where a predetermined relationship exists between the first predetermined ratio and the second predetermined ratio, a first error value depending on a first control value (Vd1) and a first reference value (Iref1) is integrated (43) to obtain a black level setting value, and a second error value depending on a second control value (Vd2) and a second reference value (Iref2) is integrated (44) to obtain a gain setting value.

24. 发明公开

EP0657863A3 A signal amplifier circuit and an image display device adopting the signal amplifier circuit 失效
标题翻译：信号放大电路和图像显示装置，其使用信号放大器电路。
公开(公告)号：EP0657863A3
公开(公告)日：1997-05-21
申请号：EP94302380.4
申请日：1994-04-05
申请人： SHARP KABUSHIKI KAISHA
发明人： Kubota, Yasushi , Katoh, Ken-ichi , Yoneda, Hiroshi
IPC分类号： G09G3/36
CPC分类号： G09G3/2011 , G09G3/3688 , G09G2310/027 , G09G2310/0291 , G11C19/00 , H03F1/303 , H03G1/00 , H04N5/148 , H04N5/16 , H04N5/68 , H04N5/70
摘要： A signal amplifier circuit is provided with a buffer amplifier (1) and an adjusting circuit (2) for detecting a difference in voltage between a reference voltage (V o ) and an output voltage (V o + ΔV) of the buffer amplifier when the reference voltage (V o ) is inputted to the buffer amplifier (1) as an offset voltage, and for inputting a voltage obtained by subtracting the offset voltage (ΔV) from the voltage of an input signal so as to cancel out the offset voltage. An image display device of the present invention includes the above signal amplifier circuit. According to the above arrangement, the offset voltage (ΔV) can be cancelled out. Therefore, the signal amplifier circuit having a desirable buffer characteristic that a voltage having the same level as the voltage of the input signal can be outputted even if the offset voltage is generated in the buffer amplifier. By adopting the above signal amplifier circuit, an image display device which permits a high quality image display can be achieved.

25. 发明公开

EP0396746A4 PICTURE RECEIVER CONTROLLER 失效
标题翻译：图像接收器控制器
公开(公告)号：EP0396746A4
公开(公告)日：1991-05-08
申请号：EP88910096
申请日：1988-11-17
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： KAWAHARA, ISAO
IPC分类号： H04N5/16 , H04N5/18 , H04N5/21 , H04N5/52 , H04N5/53 , H04N7/24 , H04N7/13
CPC分类号： H04N5/16 , H04N5/18 , H04N5/21 , H04N5/53

26. 发明公开

EP0064316A3 Circuitry for controlling the d.c. level of a video signal 无效
标题翻译：用于控制视频信号的直流电平的电路
公开(公告)号：EP0064316A3
公开(公告)日：1984-03-28
申请号：EP82200508
申请日：1982-04-29
申请人： PHILIPS PATENTVERWALTUNG GMBH , N.V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人： WOLBER, JORG , DEMMER, WALTER , KUNZE, DIETER , HAHN, FRIEDRICH
IPC分类号： H04N5/16 , H04N5/18
CPC分类号： H04N5/16

27. 发明公开

EP0057117A3 Luminance signal limiting device 失效
标题翻译：发光信号限制装置
公开(公告)号：EP0057117A3
公开(公告)日：1982-08-25
申请号：EP82400031
申请日：1982-01-08
申请人： THOMSON-CSF
发明人： Ta Hong, Anh
IPC分类号： H04N05/38 , H04N05/16 , H04N09/535 , H03G11/02
CPC分类号： H03G11/02 , H04N5/16 , H04N5/38 , H04N9/64

28. 发明公开

EP2266311A4 REDUCING DIFFERENTIALS IN VISUAL MEDIA 审中-公开
标题翻译：在还原视觉媒体的差异
公开(公告)号：EP2266311A4
公开(公告)日：2014-05-21
申请号：EP09721304
申请日：2009-03-10
申请人： AURATECHNIC INC
发明人： FARMER LINDA , ROLPH JON
IPC分类号： H04N5/44 , H04N5/20 , H04N5/21
CPC分类号： H04N5/16 , H04N5/147 , H04N19/117 , H04N19/136 , H04N19/172 , H04N19/176 , H04N19/61 , H04N19/85 , H04N21/4318 , H04N21/47 , H04N21/4854

29. 发明公开

EP2290945A4 PICTURE CORRECTING DEVICE, PICTURE CORRECTING PROGRAM AND PICTURE CORRECTING METHOD 有权
标题翻译： BILDKORREKTUREINRICHTUNG，BILDKORREKTURPROGRAMM UND BILDKORREKTURVERFAHREN
公开(公告)号：EP2290945A4
公开(公告)日：2011-08-03
申请号：EP08777221
申请日：2008-06-13
申请人： FUJITSU LTD
发明人： YU SHANSHAN , SHIMIZU MASAYOSHI
IPC分类号： H04N5/20
CPC分类号： H04N5/16 , H04N5/20 , H04N5/57 , H04N21/4318 , H04N21/44008
摘要： An image correcting apparatus calculates, when an accepted processing target image is determined to be a dark image because an average brightness of an entirety of the processing target image is lower than a predetermined value, a distribution balance of a frequency of appearance of pixels by dividing a dark area indicating an area lower than the average brightness into a very dark area and a slightly dark area; determines if there is a possibility of causing a black floating phenomenon or a black defacement phenomenon based on the calculated distribution balance; determines a correction amount corresponding to the black floating phenomenon or the black defacement phenomenon when there is a possibility of causing the black floating phenomenon or the black defacement phenomenon; and corrects the processing target image by using the determined correction amount.
摘要翻译：当由于整个处理目标图像的平均亮度低于预定值而确定接受的处理目标图像是暗图像时，图像校正设备计算通过分割出的像素的出现频率的分布平衡指示比平均亮度低的区域的暗区变成非常暗的区域和稍暗的区域; 基于计算出的分布平衡确定是否存在引起黑色漂浮现象或黑色污损现象的可能性; 当存在引起黑漂浮现象或黑污损现象的可能性时，确定对应于黑漂移现象或黑污损现象的校正量; 并通过使用所确定的校正量来校正处理目标图像。

30. 发明授权

EP1067776B1 Image display apparatus for fixing luminance of blank area and varying only luminance of image. 有权
标题翻译：是在其中亮度在一个空置区保持的图像显示装置，以及在图像区域修改只有亮度
公开(公告)号：EP1067776B1
公开(公告)日：2007-11-07
申请号：EP00304892.3
申请日：2000-06-09
申请人： ALPS ELECTRIC CO., LTD.
发明人： Inage, Fumiaki , Katsuyama, Tomoyasu , Date, Yoshihiro , Hagiwara, Naoki
IPC分类号： H04N5/20 , H04N5/232
CPC分类号： H04N5/23293 , H04N5/16 , H04N5/20 , H04N5/66

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