公开(公告)号：US20060214928A1

公开(公告)日：2006-09-28

申请号：US11356001

申请日：2006-02-17

申请人： Fumio Koyama

发明人： Fumio Koyama

IPC分类号： G09G5/00

CPC分类号： G09G3/3648 ,  G09G3/3688 ,  G09G2300/0408 ,  G09G2310/0218 ,  G09G2310/08 ,  G09G2320/0209 ,  G09G2320/041 ,  G09G2320/043

摘要： A driving device for a liquid crystal panel that includes: plural liquid crystal cells arranged in a matrix shape; pixel electrodes provided for the respective liquid crystal cells; plural data lines for inputting an image signal to the respective pixel electrodes; a data line driver that generates a sampling signal for sampling the image signal from inputted plural timing signals; plural sampling circuits provided for the respective data lines that sample the image signal according to the sampling signal and output the image signal to the data lines; and a dummy element formed on, at least, a substrate identical with a substrate on which the sampling circuits are formed, the driving device for a liquid crystal panel including: a signal generating circuit that generates, as the plural timing signals, a start signal and other signals generated with the start signal as a reference of a phase; a reference signal generating circuit that generates a reference signal with a horizontal synchronizing signal of an image signal as a trigger and with timing after elapse of a predetermined time as a start point; a phase comparator that compares phases of an inputted monitor signal and the reference signal and outputs phase comparison information; and an adder that outputs an integrated count value for adjusting timing for generating the start signal on the basis of an initial count value set in advance and the phase comparison information from the phase comparator, wherein the signal generating circuit generates plural timing signals including the start signal with the horizontal synchronizing signal as a trigger and with timing based on the integrated count value as a start point and supplies the timing signals to the liquid crystal panel.

摘要翻译： 一种液晶面板驱动装置，包括：多个液晶单元，以矩阵形状排列; 为各液晶单元设置的像素电极; 多个数据线，用于将图像信号输入到各个像素电极; 数据线驱动器，其生成用于从输入的多个定时信号中对图像信号进行采样的采样信号; 为根据采样信号对图像信号进行采样并将图像信号输出到数据线的各数据线提供的多个采样电路; 以及形成在至少与形成有采样电路的基板相同的基板上的虚设元件，液晶面板驱动装置包括：信号发生电路，其生成作为多个定时信号的起始信号 以及以起始信号产生的其它信号作为相位的参考; 参考信号产生电路，其产生具有作为触发的图像信号的水平同步信号和经过预定时间之后的定时作为起始点的参考信号; 相位比较器，其比较输入的监视信号和参考信号的相位，并输出相位比较信息; 以及加法器，其输出用于根据预先设定的初始计数值来调整用于生成起始信号的定时的积分计数值和来自所述相位比较器的相位比较信息，其中所述信号发生电路产生包括所述起始信号的多个定时信号 信号，其中水平同步信号作为触发，并且基于积分计数值作为起始点的定时，并将定时信号提供给液晶面板。

公开(公告)号：US20050190205A1

公开(公告)日：2005-09-01

申请号：US11064019

申请日：2005-02-23

申请人： Fumio Koyama

发明人： Fumio Koyama

IPC分类号： G02F1/13 ,  G02F1/133 ,  G09G3/20 ,  G09G3/36 ,  G09G5/02 ,  G09G5/06 ,  H04N9/64

CPC分类号： G09G3/3607 ,  G09G3/3611 ,  G09G2320/0666 ,  H04N9/3182

摘要： Aspects of the invention can reduce the memory capacity constituting a lookup table while reducing the lower in color correction accuracy. A color correction circuit for correcting for color of an image to be displayed, in an image display apparatus, can include a two-dimensional lookup table. A color correction circuit section is for correcting for intensity level of at least one signal of three signals of a light-intensity signal, a first chrominance signal and a second chrominance signal that are to be inputted as an image signal representative of the image, by use of a correcting value stored in the two-dimensional lookup table, according to a combination in intensity level of the first and second chrominance signals. The two-dimensional lookup table can store, as the correcting value, correcting values corresponding respectively to combinations to be specified by an intensity level of the first chrominance signal and an intensity level of the second chrominance signal.

摘要翻译： 本发明的方面可以减少构成查找表的存储容量，同时降低颜色校正精度的降低。 在图像显示装置中，用于校正要显示的图像的颜色的颜色校正电路可以包括二维查找表。 颜色校正电路部分用于校正要作为表示图像的图像信号输入的光强度信号，第一色度信号和第二色度信号的三个信号的至少一个信号的强度水平，通过 根据第一和第二色度信号的强度级别的组合，使用存储在二维查找表中的校正值。 二维查找表可以存储分别对应于由第一色度信号的强度级和第二色度信号的强度级指定的组合的校正值作为校正值。

公开(公告)号：US06604682B2

公开(公告)日：2003-08-12

申请号：US09828453

申请日：2001-04-06

申请人： Hitomi Wakamiya ,  Shinichi Arazaki ,  Fumio Koyama ,  Satoshi Yanagida ,  Haruyoshi Ohori

发明人： Hitomi Wakamiya ,  Shinichi Arazaki ,  Fumio Koyama ,  Satoshi Yanagida ,  Haruyoshi Ohori

IPC分类号： G06K710

CPC分类号： G06K7/1456 ,  G06K7/14

摘要： A two-dimensional bar code reading method and apparatus search the finder pattern in a scanned image of a two-dimensional bar code symbol, find orientation modules, find data modules, and convert the symbol to data characters as part of the decoding process for the scanned image of a MaxiCode symbol. In the data module search part of a MaxiCode symbol decoding process, position and shape information is calculated for data modules on an orientation axis, assuming an orientation axis passing the finder pattern center point, inside orientation module center point, and outside orientation module center point (step to S1801). Based on pixel data corresponding to the calculated location of the center point in each module, a bit pattern is generated where black data cells are 1 bits and white cells are 0 bits (S1802). The locations of MaxiCode symbol data modules in the area between orientation axes are then calculated (S1803). Pixel data corresponding to the calculated location of the center point of each data module is then converted to a bit pattern where black data cells are 1 bits and white data cells are 0 bits (S1804), and the data module search process then ends.

摘要翻译： 二维条形码读取方法和装置在二维条形码符号的扫描图像中搜索取景器图案，找到定向模块，查找数据模块，并将符号转换为数据字符，作为解码过程的一部分 扫描图像的MaxiCode符号。 在MaxiCode符号解码处理的数据模块搜索部分中，假设定向轴通过取景器图案中心点，定位模块中心点和外部定向模块中心点，计算取向轴上的数据模块的位置和形状信息 （步骤S1801）。 基于与每个模块中的计算出的中心点的位置对应的像素数据，生成黑色数据单元为1位且白色单元为0位的位模式（S1802）。 然后计算取向轴之间的区域中MaxiCode符号数据模块的位置（S1803）。 然后将与每个数据模块的中心点的计算位置对应的像素数据转换为黑色数据单元为1位，白色数据单元为0位的位模式（S1804），然后数据模块搜索处理结束。

公开(公告)号：US06590917B2

公开(公告)日：2003-07-08

申请号：US09321711

申请日：1999-05-28

申请人： Hideo Nakayama ,  Akira Sakamoto ,  Takeshi Nakamura ,  Fumio Koyama

发明人： Hideo Nakayama ,  Akira Sakamoto ,  Takeshi Nakamura ,  Fumio Koyama

IPC分类号： H01S520

CPC分类号： H01S5/18361 ,  H01S5/18308 ,  H01S5/18311 ,  H01S5/18394 ,  H01S5/423 ,  H01S2301/163 ,  H01S2301/166

摘要： A surface emitting laser and a surface emitting laser array capable of high-luminance optical output in fundamental transverse mode, which can be produced easily with good reproducibility and with small position variation. The surface emitting laser has an active layer region composed of an active layer and upper and lower spacer layers deposited on both sides thereof and reflection layers deposited on both sides of the active layer region, an upper reflecting layer deposited on the upper spacer layer of the active layer region, a lower reflecting layer deposited on the lower spacer layer of the active layer region, and a secondary cavity formed by a first mode control layer and a second mode control layer placed on the periphery of the region of emission of the laser beam at the upper reflecting layer.

摘要翻译： 表面发射激光器和表面发射激光器阵列，其能够在基本横向模式下具有高亮度光学输出，其可以容易地以良好的再现性和小的位置变化产生。表面发射激光器具有由有源层 并且沉积在其两侧上的上隔离层和下间隔层以及沉积在有源层区两侧的反射层，沉积在有源层区的上间隔层上的上反射层，沉积在下间隔层上的下反射层 以及由位于上反射层的激光束的发射区域的周围的第一模式控制层和第二模式控制层形成的次级空腔。

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。

公开(公告)号：US5940058A

公开(公告)日：1999-08-17

申请号：US965683

申请日：1997-11-06

申请人： Fumio Koyama

发明人： Fumio Koyama

IPC分类号： G09G3/36 ,  H04N5/18 ,  H04N5/202 ,  H04N5/66

CPC分类号： G09G3/3648 ,  G09G2310/0297 ,  G09G2320/0276 ,  G09G3/3614 ,  G09G3/3688 ,  H04N5/18 ,  H04N5/202 ,  H04N5/66

摘要： A clamp and gamma correction circuit which processes an image signal through a clamp circuit and then a gamma correction circuit in that order to perform a proper gamma correction with a clamp voltage adjusted to its appropriate value. An image signal varying between a black level and a white level is applied to the clamp circuit. The clamp circuit outputs an image signal, the black level of which is clamped to the clamp voltage, while the amplitude between the black level and the white level is maintained at constant level. The gamma correction circuit amplifies the image signal output by the clamp circuit at different amplification factors based on a reference voltage. A voltage setting circuit varies the clamp voltage and the reference voltage but with the voltage difference therebetween kept constant, and applies the clamp voltage and the reference voltage to the clamp circuit and the gamma correction circuit, respectively.

摘要翻译： 钳位和伽马校正电路，其通过钳位电路然后伽马校正电路按顺序处理图像信号，以通过调整到其适当值的钳位电压进行适当的伽马校正。 在黑电平和白电平之间变化的图像信号被施加到钳位电路。 钳位电路输出图像信号，其黑电平被钳位到钳位电压，而黑电平和白电平之间的幅度保持在恒定电平。 伽马校正电路基于参考电压以不同的放大因数放大由钳位电路输出的图像信号。 电压设定电路使钳位电压和参考电压变化，但是其间的电压差保持恒定，并将钳位电压和参考电压分别施加到钳位电路和伽马校正电路。

公开(公告)号：US08514156B2

公开(公告)日：2013-08-20

申请号：US11698931

申请日：2007-01-29

申请人： Fumio Koyama

发明人： Fumio Koyama

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G09G3/3655 ,  G09G2320/0646

摘要： The image display apparatus of the invention has: a liquid crystal panel that is used to display an image represented by input image data; and a lighting device that emits illumination light controlled according to a light control level suitable for the input image data and irradiates the liquid crystal panel with the controlled illumination light. The image display apparatus further includes a counter electrode voltage control module that generates a counter electrode voltage to be input into the liquid crystal panel and supplies the generated counter electrode voltage to the liquid crystal panel. The counter electrode voltage control module has: a counter electrode voltage setting module that sets a counter electrode voltage control level corresponding to the light control level; and a counter electrode voltage generation module that generates the counter electrode voltage in response to the set counter electrode voltage control level. This arrangement enables dynamic adjustment of the counter electrode voltage of the liquid crystal panel in response to a dynamic change in amount of the illumination light for irradiating the liquid crystal panel.

摘要翻译： 本发明的图像显示装置具有：用于显示由输入图像数据表示的图像的液晶面板; 以及照明装置，其发射根据适合于输入图像数据的光控制水平而被控制的照明光，并且用受控照明光照射液晶面板。 图像显示装置还包括对电极电压控制模块，其产生要输入到液晶面板的对置电极电压，并将产生的对置电极电压提供给液晶面板。 对电极电压控制模块具有：对电极电压设定模块，其设定与光控制电平对应的对置电极电压控制电平; 以及对电极电压产生模块，其响应于所设置的对置电极电压控制电平而产生对置电极电压。 这种布置使得能够响应于用于照射液晶面板的照明光量的动态变化来动态地调节液晶面板的对置电极电压。

公开(公告)号：US07990591B2

公开(公告)日：2011-08-02

申请号：US12035665

申请日：2008-02-22

申请人： Fumio Koyama

发明人： Fumio Koyama

IPC分类号： H04N1/46 ,  H04N1/60 ,  G06K9/00

CPC分类号： H04N9/643 ,  G06T11/001 ,  G09G3/001 ,  G09G3/3611 ,  G09G5/06 ,  H04N1/6016 ,  H04N9/3182

摘要： An image processing device for converting a color tone of an image includes: an input unit to which an image is input; a designation unit that designates precision of color conversion performed on the input image; a color conversion table that stores output color data after color conversion of color data, which is determined according to the designated precision and may be included in the image, in an address space determined according to the precision; an address specifying unit that specifies an address referring to the color conversion table on the basis of a first portion, which is determined according to the precision, of color data expressing the input image; a color converting unit that converts the color data included in the input image into output color data by referring to the specified address of the color conversion table; a parameter specifying unit that specifies a parameter for interpolating a color, which is expressed by the output color data, on the basis of a second portion other than the first portion of the color data included in the input image; and an interpolation unit that interpolates a color, which is expressed by the converted output color data, on the basis of the specified parameter.

摘要翻译： 用于转换图像的色调的图像处理装置包括：图像输入到的输入单元; 指定单元，其指定对所述输入图像执行的颜色转换的精度; 颜色转换表，其将根据指定精度确定并且可以包括在图像中的颜色数据的颜色转换之后的输出颜色数据存储在根据精度确定的地址空间中; 地址指定单元，其基于根据精度确定的表示输入图像的颜色数据的第一部分来指定参考颜色转换表的地址; 颜色转换单元，其通过参考颜色转换表的指定地址将输入图像中包括的颜色数据转换为输出颜色数据; 参数指定单元，其基于输入图像中包括的彩色数据的第一部分以外的第二部分，指定用于内插由输出颜色数据表示的颜色的参数; 以及内插单元，其基于所指定的参数内插由转换的输出颜色数据表示的颜色。

公开(公告)号：US07967450B2

公开(公告)日：2011-06-28

申请号：US12040014

申请日：2008-02-29

申请人： Fumio Koyama ,  Masashi Kiuchi

发明人： Fumio Koyama ,  Masashi Kiuchi

IPC分类号： G03B21/14

CPC分类号： G03B21/20 ,  G03B21/2046 ,  G03B21/2053 ,  G03B33/12 ,  H04N9/3155

摘要： A light amount control device that controls an amount of light acquired from a light source provided in an image display apparatus includes: a pulse generator; an operation processing portion for light amount control that outputs a transfer start signal at timing when the amount of light is controlled; a data setting circuit that is provided outside the operation processing portion and that stores data, in which various kinds of signals instructing the operation processing portion to set transfer data beforehand are set, in a memory; an address generator that is provided outside the operation processing portion and that sets an address in response to the transfer start signal output from the operation processing portion; a memory that is a main component included in the pulse generator and that outputs data on the basis of a memory address generated by the address generator; a pulse driven body whose operation direction and speed are determined by a pulse signal formed by data output from the memory and which is driven by a pulse; an actuator connected to the pulse driven body; and an opening capable of adjusting the amount of transmitted light according to an operation of the actuator inserted in an emission path of the light source.

摘要翻译： 控制从设置在图像显示装置中的光源获取的光量的光量控制装置包括：脉冲发生器; 光量控制的操作处理部，其在控制光量的定时输出转印开始信号; 数据设定电路，其设置在所述运算处理部的外部，并存储有数据，其中指示所述运算处理部预先设定传送数据的各种信号; 地址生成器，其设置在所述运算处理部的外部，并且响应于从所述运算处理部输出的所述转移开始信号而设定地址; 存储器，其是包括在所述脉冲发生器中的主要部件，并且基于由所述地址发生器产生的存储器地址来输出数据; 脉冲驱动体，其操作方向和速度由由从存储器输出并由脉冲驱动的数据形成的脉冲信号确定; 连接到脉冲驱动体的致动器; 以及能够根据插入在光源的发射路径中的致动器的操作来调整透射光量的开口。

公开(公告)号：US07911544B2

公开(公告)日：2011-03-22

申请号：US11448072

申请日：2006-06-07

申请人： Tatsuhiko Nobori ,  Fumio Koyama

发明人： Tatsuhiko Nobori ,  Fumio Koyama

IPC分类号： H04N9/69 ,  G09G5/02

CPC分类号： G09G3/2007 ,  G09G2320/0285 ,  G09G2360/16

摘要： Technology for carrying out a luminance range expansion process is provided. In the technology, the luminance range expansion process is carried out in a manner appropriate to the luminance histogram of image data. Using the white peak value WP which represents the maximum value of luminance and the APL which represents the mean value thereof in the luminance histogram of image data, an expansion coefficient for use in the luminance range expansion process is derived by referring to an expansion coefficient lookup table 210. On the basis of the expansion coefficient, the luminance range expansion process is performed on the image data.

摘要翻译： 提供了用于执行亮度范围扩展处理的技术。 在该技术中，以适合于图像数据的亮度直方图的方式进行亮度范围扩展处理。 使用表示亮度的最大值的白色峰值WP和表示图像数据的亮度直方图中的平均值的APL，通过参照扩展系数查询导出用于亮度范围展开处理的展开系数 基于展开系数，对图像数据进行亮度范围展开处理。