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61. 发明授权

US06862029B1 Color display system 失效
标题翻译：彩色显示系统
公开(公告)号：US06862029B1
公开(公告)日：2005-03-01
申请号：US09362080
申请日：1999-07-27
申请人： Henry M. D'Souza , William H. Nott , Gokalp Bayramoglu
发明人： Henry M. D'Souza , William H. Nott , Gokalp Bayramoglu
IPC分类号： G01M11/00 , G09G5/00 , G09G5/02 , G09G5/10 , H04N9/69 , H04N17/04 , H04N17/00
CPC分类号： H04N17/04 , G09G5/02
摘要： Disclosed is a method and apparatus for controlling color displayed on a color monitor. The method includes, in one embodiment, the steps of: activating a first color scheme on the monitor; responsive to the activating of the first color scheme, measuring a first color point of the monitor; storing the first color point within a memory associated with the monitor; activating a second color scheme on the monitor; responsive to the activating of the second color scheme, measuring a second color point of the monitor; storing the second color point within the memory associated with the monitor; activating a third color scheme on the monitor; responsive to the activating of the third color scheme, measuring a third color point of the monitor; and storing the third color point within the memory associated with the monitor.
摘要翻译：公开了一种用于控制在彩色监视器上显示的颜色的方法和装置。该方法在一个实施例中包括以下步骤：在监视器上激活第一颜色方案; 响应于所述第一颜色方案的激活，测量所述监视器的第一色点; 将所述第一色点存储在与所述监视器相关联的存储器内; 在监视器上激活第二种颜色方案; 响应于所述第二颜色方案的激活，测量所述监视器的第二色点; 将所述第二色点存储在与所述监视器相关联的存储器内; 在显示器上激活第三种颜色方案; 响应于激活第三颜色方案，测量监视器的第三色点; 以及将所述第三色点存储在与所述监视器相关联的存储器内。

62. 发明授权

US6081302A Image quality correction circuit and method based on color density 失效
公开(公告)号：US6081302A
公开(公告)日：2000-06-27
申请号：US281798
申请日：1999-03-31
申请人： Masaaki Hanai
发明人： Masaaki Hanai
IPC分类号： H04N5/205 , H04N5/208 , H04N9/64 , H04N9/68 , H04N9/69 , H04N9/77 , H04N5/21 , H04N5/52
CPC分类号： H04N9/68 , H04N5/208 , H04N9/646 , H04N9/77
摘要： An image quality correction circuit having a variable gain amplifier for amplifying an extracted high-frequency component of a luminance signal in such a manner that the gain thereof is increased when detected color density is high, and is reduced when the detected color density is low, and a slice circuit for slicing the outputted amplitude of the variable gain amplifier at a prescribed value, wherein a corrected luminance signal is obtained by combining an image quality correction signal outputted from the slice circuit with the luminance signal to be corrected.

63. 发明授权

US6064366A Spatial light modulators 失效
标题翻译：空间光调制器
公开(公告)号：US6064366A
公开(公告)日：2000-05-16
申请号：US868444
申请日：1997-06-03
申请人： John David Millward , John Gillespie
发明人： John David Millward , John Gillespie
IPC分类号： G09G3/20 , G09G3/34 , H04N5/202 , H04N5/74 , H04N5/76 , H04N9/31 , H04N9/69 , G09G5/10
CPC分类号： G09G3/346 , H04N5/202 , H04N5/7458 , H04N9/312 , H04N9/3129 , H04N9/3164 , H04N9/3188 , G09G2300/08 , G09G2320/0276 , G09G3/2022 , G09G3/2037 , G09G3/2059 , H04N2005/7466 , H04N9/69
摘要： A spatial light modulator in the form of a deformable mirror device (110) receives from a frame store (116) data which has been formatted by a data formatter (114) subsequent to gamma correction in a ROM look-up table (112). The DMD (110) displays different light levels by being ON for selected periods of a series of durations 4, 8, 16 . . . 1024 varying in proportion to a basic period multiplied by powers of two. The shortest duration 4 for which the DMD can be turned on is a multiple of the basic period, and the series includes additional durations 5, 6 and 7 in the series between the shortest displayable duration 4 and the next power of two 8. Durations 1, 2 and 3 of less than the shortest displayable duration can be displayed by adjusting the turn-on time of a proportion of the adjacent mirrors. The longest duration for which the mirror can be turned on can be employed twice.
摘要翻译：可变形反射镜装置（110）形式的空间光调制器从ROM存储器（116）接收在ROM查找表（112）中的伽马校正之后由数据格式器（114）格式化的数据。 DMD（110）通过在一系列持续时间4,8,16的选定时段中为ON而显示不同的光级。。。 1024与基本周期的比例乘以2的幂。 DMD可以打开的最短持续时间4是基本周期的倍数，并且该系列包括在最短可显示持续时间4和下一次功率之间的串联中的附加持续时间5,6和7.持续时间1 可以通过调整相邻反射镜的一部分的开启时间来显示小于最短显示持续时间的2和3。反射镜可以打开的最长持续时间可以使用两次。

64. 发明授权

US6034660A Spatial light modulators 失效
标题翻译：空间光调制器
公开(公告)号：US6034660A
公开(公告)日：2000-03-07
申请号：US585044
申请日：1996-01-11
申请人： John David Millward , John Gillespie
发明人： John David Millward , John Gillespie
IPC分类号： G09G3/20 , G09G3/34 , H04N5/202 , H04N5/74 , H04N5/76 , H04N9/31 , H04N9/69
CPC分类号： G09G3/346 , H04N5/202 , H04N5/7458 , H04N9/312 , H04N9/3129 , H04N9/3164 , H04N9/3188 , G09G2300/08 , G09G2320/0276 , G09G3/2022 , G09G3/2037 , G09G3/2059 , H04N2005/7466 , H04N9/69
摘要： A processing system for a spatial light modulator in the form of an array of deformable mirror devices receives a gamma-corrected, color component, video input signal. The input signal is converted to pixel data which is then converted to RGB data. A de-gamma processor removes all or part of the gamma-correction of the pixel data to match the data to the form of the spatial light modulator.
摘要翻译：用于可变形反射镜装置阵列形式的空间光调制器的处理系统接收伽马校正的彩色分量视频输入信号。将输入信号转换为像素数据，然后将其转换为RGB数据。去伽马处理器去除像素数据的伽马校正的全部或部分以将数据与空间光调制器的形式相匹配。

65. 发明授权

US5990979A Gamma correction circuit and video display apparatus using the same 失效
标题翻译：伽马校正电路和使用其的视频显示装置
公开(公告)号：US5990979A
公开(公告)日：1999-11-23
申请号：US920001
申请日：1997-08-29
申请人： Fumio Koyama , Kiyoshi Miyashita
发明人： Fumio Koyama , Kiyoshi Miyashita
IPC分类号： G02F1/133 , G09G3/36 , G09G5/36 , H04N5/202 , H04N5/66 , H04N9/69
CPC分类号： H04N5/202
摘要： A gamma correction circuit is provided for gamma correcting first and second polarity video signals of different polarity. The gamma correction circuit includes first and second resistance elements R1, R2 connected in series between a power supply terminal 50 and a ground terminal 52 and a third resistance element R3 connected in parallel with the first resistance element R1 between the power supply terminal 50 and the second resistance element R2. A fourth resistance element R4 is connected in parallel with the second resistance element R2 between the ground terminal 52 and the third resistance element R3. An output terminal 54 is arranged between the first and second resistance elements R1, R2. An input transistor Tr1 is connected between the first and second resistance elements R1, R2 with its base supplied with a video signal. A first control transistor is connected between the power supply terminal 50 and the third resistance element R3. The first control transistor Tr2 is turned on with its base supplied with a first reference voltage when a first polarity video signal is input, and remains turned off the rest of the time. A second control transistor Tr3 is connected between the ground terminal 52 and the fourth resistance element R4. The second control transistor Tr3 is turned on with its base supplied with a second reference voltage when a second polarity video signal is input and remains turned off the rest of the time.
摘要翻译：提供伽马校正电路用于伽马校正不同极性的第一和第二极性视频信号。伽马校正电路包括在电源端子50和接地端子52之间串联连接的第一和第二电阻元件R1，R2，以及与电源端子50和第二电源元件R1之间的第一电阻元件R1并联连接的第三电阻元件R3。第二电阻元件R2。第四电阻元件R4与接地端子52和第三电阻元件R3之间的第二电阻元件R2并联连接。输出端子54布置在第一和第二电阻元件R1，R2之间。输入晶体管Tr1连接在第一和第二电阻元件R1，R2之间，其基极被提供有视频信号。第一控制晶体管连接在电源端子50和第三电阻元件R3之间。当输入第一极性视频信号时，第一控制晶体管Tr2导通，其基极被提供第一参考电压，并且在剩余时间内保持关闭。第二控制晶体管Tr3连接在接地端子52和第四电阻元件R4之间。当输入第二极性视频信号时，第二控制晶体管Tr3导通，其基极被提供第二基准电压，并在其余时间保持关断。

66. 发明授权

US5910823A Image quality correction circuit and method based on color density 失效
标题翻译：基于色彩密度的图像质量校正电路及方法
公开(公告)号：US5910823A
公开(公告)日：1999-06-08
申请号：US794240
申请日：1997-01-31
申请人： Masaaki Hanai
发明人： Masaaki Hanai
IPC分类号： H04N5/205 , H04N5/208 , H04N9/64 , H04N9/68 , H04N9/69 , H04N9/77 , H04N5/21 , H04N5/52
CPC分类号： H04N9/68 , H04N5/208 , H04N9/646 , H04N9/77
摘要： An image quality correction circuit having a variable gain amplifier for amplifying an extracted high-frequency component of a luminance signal in such a mariner that the gain thereof is increased when detected color density is high, and is reduced when the detected color density is low, and a slice circuit for slicing the outputted amplitude of the variable gain amplifier at a prescribed value, wherein a corrected luminance signal is obtained by combining an image quality correction signal outputted from the slice circuit with the luminance signal to be corrected.
摘要翻译：一种图像质量校正电路，具有可变增益放大器，用于在检测到的色浓度高时放大提取的这种水平仪中的亮度信号的高频分量，使其增益增加，并且当检测到的色浓度低时，以及切片电路，用于将所述可变增益放大器的输出幅度切片为规定值，其中通过将从所述切片电路输出的图像质量校正信号与要校正的亮度信号组合而获得经校正的亮度信号。

67. 发明授权

US5907358A Image pickup apparatus 失效
标题翻译：摄像设备
公开(公告)号：US5907358A
公开(公告)日：1999-05-25
申请号：US814874
申请日：1997-03-11
申请人： Shingo Tatsumi
发明人： Shingo Tatsumi
IPC分类号： H04N5/225 , H04N9/69 , H04N3/14
CPC分类号： H04N5/2254 , H04N9/69
摘要： In an image pickup apparatus arranged to carry out a predetermined signal processing action including a gamma correction process on a signal outputted from an image sensor and to invert the signal during the process of the signal processing action, a varying circuit is arranged to vary a gamma value to be used for the gamma correction process.
摘要翻译：在被配置为对从图像传感器输出的信号执行伽马校正处理并且在信号处理动作的处理期间反转信号的预定信号处理动作的图像拾取装置中，设置改变电路，用于伽马校正过程的值。

68. 发明授权

US5905540A Projection-type display apparatus 失效
公开(公告)号：US5905540A
公开(公告)日：1999-05-18
申请号：US708139
申请日：1996-08-27
申请人： Kiyoshi Miyashita , Satoshi Hirashima , Keijiro Naito , Mamoru Kobayashi
发明人： Kiyoshi Miyashita , Satoshi Hirashima , Keijiro Naito , Mamoru Kobayashi
IPC分类号： H04N3/14 , H04N5/74 , H04N9/31 , H04N9/69 , H04N5/202
CPC分类号： H04N9/312 , H04N9/3105 , H04N9/3141 , H04N9/3144 , H04N9/317 , H04N9/3182 , H04N9/69 , H04N2005/745
摘要： A projection-type video display in which the entire input video signal is first digitally corrected through digital gamma correction. Then, a subset of the corrected video signal is corrected again through analogue correction techniques. In particular this portion of the digitally corrected video signal corresponds to the subject where slopes of applied voltage-transmissivity characteristic curve (V-T curve) of liquid crystal changes relatively rapidly. The result is a more accurate gamma correction which is also less expensive than conventional, purely digital gamma correction systems. Another feature is the inclusion of three liquid crystal light valves, each having have a plurality of pixels arranged in the matrix and identical shift registers in such a way that pixels of one scanning line are driven selectively and sequentially from the same horizontal direction according to a given set of video signals, a memory where at least video signals for pixels of one scanning line are written and stored, a first drive controller for outputting video signals of one scanning line from memory in the order in which the video signals were written and supplying the video signals to pixels of a scanning line in at least one of light valves, and a second drive controller for outputting video signals of one scanning line from memory in a reverse order in which video signals were written thereto for supplying another light valve. Also disclosed is recognition unit for recognizing different types of input video signal format systems and a write controller for controlling the way of writing input video signals of each scanning line into pixels of horizontal scanning lines in the light valves based on different type of input video signal format system.

69. 发明授权

US5768442A Digital signal conversion method and apparatus for converting photoelectrically converted video signals 失效
标题翻译：用于转换光电转换视频信号的数字信号转换方法和装置
公开(公告)号：US5768442A
公开(公告)日：1998-06-16
申请号：US540882
申请日：1995-10-11
申请人： Byung-eue Ahn
发明人： Byung-eue Ahn
IPC分类号： G06T5/40 , H04N5/20 , H04N9/69 , G06K9/36
CPC分类号： H04N9/69 , G06T5/009 , G06T2207/10016 , H04N5/20
摘要： A digital signal conversion apparatus converts an input video signal having a first dynamic range into a converted video signal having a dynamic range which is smaller than the first dynamic range. In particular, the conversion apparatus includes a digital signal processor (DSP) and a knee point determiner. The DSP inputs the input video signal and converts such signal into the converted video signal based on a selected one of a plurality of input/output (I/O) characteristic functions stored in the DSP. Furthermore, the DSP generates brightness information based on the magnitude of the first dynamic range of input video signal. The knee point determiner inputs the brightness information and generates knee point information based on the brightness information. As a result, the DSP selects one of the I/O characteristic functions in accordance with the knee point information such that the DSP can appropriately convert the input video signal into the converted video signal.
摘要翻译：数字信号转换装置将具有第一动态范围的输入视频信号转换为具有小于第一动态范围的动态范围的转换视频信号。特别地，转换装置包括数字信号处理器（DSP）和拐点确定器。 DSP输入输入视频信号，并且基于存储在DSP中的多个输入/输出（I / O）特性函数中的所选择的一个，将该信号转换成转换的视频信号。此外，DSP基于输入视频信号的第一动态范围的大小生成亮度信息。拐点确定器输入亮度信息，并根据亮度信息产生拐点信息。结果，DSP根据拐点信息选择I / O特性函数之一，使得DSP可以将输入视频信号适当地转换成转换后的视频信号。

70. 发明授权

US5712659A Apparatus and method for adjusting contrast of R,G,B signals 失效
标题翻译：用于调整R，G，B信号对比度的装置和方法
公开(公告)号：US5712659A
公开(公告)日：1998-01-27
申请号：US383009
申请日：1995-02-03
申请人： Toshiya Adachi
发明人： Toshiya Adachi
IPC分类号： H04N5/202 , H04N9/69
CPC分类号： H04N9/69
摘要： The video signal data of one of the three primary color signals having the maximum level is adjusted with regard to the amplitude level and the DC level thereof in accordance with a predetermined control data. A difference between the adjusted video signal data and a predetermined threshold level is calculated, and the control data is corrected by ones complement of the differential data. The video signal data of the three primary color signals are adjusted respectively, with regard to the amplitude level and DC level thereof in accordance with the corrected control data. In other words, merely with respect to the digital video signal data with the maximum level, the control and brightness controls are conducted. Then, a difference between the resultant video signal data and a predetermined threshold level is obtained for adjusting the respective contrast levels of the three primary color signals by using ones complement of the obtained differential data.
摘要翻译：根据预定的控制数据，调整具有最大电平的三个原色信号中的一个的视频信号相对于幅度电平和其直流电平。计算调整后的视频信号数据与预定阈值电平之间的差异，并通过差分数据的补码校正控制数据。根据校正的控制数据，分别调整三原色信号的视频信号的幅度电平和DC电平。换句话说，仅仅对于具有最大电平的数字视频信号数据，进行控制和亮度控制。然后，通过使用所获得的差分数据的一个补码，获得所得到的视频信号数据和预定阈值电平之间的差，以调整三个原色信号的各个对比度电平。

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