Method and apparatus for adjusting correlated color temperature
    2.
    发明授权
    Method and apparatus for adjusting correlated color temperature 有权
    调整相关色温的方法和装置

    公开(公告)号:US6078732A

    公开(公告)日:2000-06-20

    申请号:US131659

    申请日:1998-08-10

    摘要: A color printing system includes a central processing unit for generating color image data, a color monitor for displaying color image data generated by the central processing unit and a color temperature sensing device for sensing color temperature of viewing light in which color images displayed on the monitor and color images printed by the printer are viewed. A first light source has a light output intensity controllable by the central processing unit. The central processing unit is adapted to control the intensity of the first light source in accordance with the color temperature sensed by the sensing device so as to match the color temperature sensed by the sensing device to a potential color temperature. Additionally, a second light source may be provided. The second light source has a different color temperature than the first light source and the central processor can adjust the intensity of the first and second light source based on relative color temperatures. The central processing unit is adapted to adjust the color temperature of either or both intensity of the first and second light sources.

    摘要翻译: 一种彩色打印系统,包括用于产生彩色图像数据的中央处理单元,用于显示由中央处理单元生成的彩色图像数据的彩色监视器,以及用于感测在监视器上显示的彩色图像的观察光的色温的色温检测装置 并查看打印机打印的彩色图像。 第一光源具有可由中央处理单元控制的光输出强度。 中央处理单元适于根据由感测装置感测的色温来控制第一光源的强度,以便将感测装置感测到的色温与潜在的色温相匹配。 另外,可以提供第二光源。 第二光源具有与第一光源不同的色温,并且中央处理器可以基于相对色温来调节第一和第二光源的强度。 中央处理单元适于调节第一和第二光源的强度之一或两者的色温。

    Smart flash
    3.
    发明授权
    Smart flash 失效
    智能闪光灯

    公开(公告)号:US6023727A

    公开(公告)日:2000-02-08

    申请号:US989026

    申请日:1997-12-11

    摘要: A reprogrammable network communication device which communicates on a network has a reprogrammable read only memory which stores a current program image, a current network information file block containing configuration information for the network communication device, and a software module for reprogramming the reprogrammable read only memory. A random access memory stores a new program image for the reprogrammable read only memory. A processor sends and receives network communications, confirms that the new program image is compatible with the configuration information in the current network information file block, and executes the software reprogramming module so as to reprogram the reprogrammable read only memory with the new program image in a case where compatibility is confirmed.

    摘要翻译: 在网络上通信的可重编程网络通信设备具有存储当前节目图像的可再编程只读存储器,包含用于网络通信设备的配置信息的当前网络信息文件块以及用于重新编程可再编程只读存储器的软件模块。 随机访问存储器存储用于可重新编程的只读存储器的新程序映像。 处理器发送和接收网络通信,确认新程序映像与当前网络信息文件块中的配置信息兼容,并且执行软件重新编程模块,以便在新程序映像中重新编程可重新编程的只读存储器 确认兼容性的情况。

    Matrix-based gray component replacement for color halftoning
    4.
    发明授权
    Matrix-based gray component replacement for color halftoning 失效
    基于矩阵的灰色组件替代色调

    公开(公告)号:US5923774A

    公开(公告)日:1999-07-13

    申请号:US646772

    申请日:1996-05-08

    CPC分类号: H04N1/52

    摘要: A gray component replacement method for each pixel of a continuous tone image, first obtains intermediate halftone colorant values by applying any suitable halftoning technique to continuous tone colorant values. Halftone output values at each pixel, including a black output value, are determined based on the intermediate halftone values. If desired, halftone output values can be determined based on both the intermediate halftone values and the continuous tone colorant values.

    摘要翻译: 连续色调图像的每个像素的灰色成分替换方法首先通过对连续色调着色剂值应用任何合适的半色调技术来获得中间色调着色剂值。 基于中间色调值确定每个像素处的半色调输出值,包括黑色输出值。 如果需要,可以基于中间半色调值和连续色调着色剂值来确定半色调输出值。

    Tristimulus template-type colorimeter
    5.
    发明授权
    Tristimulus template-type colorimeter 失效
    三刺激模板型色度计

    公开(公告)号:US5900932A

    公开(公告)日:1999-05-04

    申请号:US887423

    申请日:1997-07-02

    摘要: A template-type calorimeter comprising a light-transparent substrate having a diffraction grating on a surface thereof, the diffraction grating being operative to diffract light incident thereon from a spaced-apart aperture into its constituent spectral components. A template is provided on a surface of the substrate and arranged to receive the diffracted spectral components. The template has formed thereon at least three spatial filters, each for selectively transmitting diffracted spectral components in accordance with respective ones of the desired color-matching functions such as the CIE x(.lambda.), y(.lambda.), z(.lambda.) or r(.lambda.), g(.lambda.), b(.lambda.) color-matching functions. The diffraction grating and the template may be mounted on opposite sides of the substrate, or they may be mounted in a laterally spaced-apart relationship on the same side of the substrate, in which case the opposite side of the substrate is coated with a reflective material. Detectors are arranged adjacent and behind each spatial filter to detect the spectral components transmitted by the respective filters, and the entire assembly is mounted in a light-tight housing which houses the aperture and the assembly in the desired spaced-apart relationship.

    摘要翻译: 一种模板型量热计,其包括在其表面上具有衍射光栅的透光基板,所述衍射光栅可操作以将从其间隔开的孔入射的光衍射成其组成光谱分量。 在衬底的表面上提供模板,并设置为接收衍射光谱分量。 模板上形成有至少三个空间滤波器,每个空间滤波器用于根据期望的颜色匹配功能(例如CIE + E,ovs x + EE(λ),+ E,ovs y)中的相应的选择性地传输衍射光谱分量 + EE(λ),+ E,ovs z + EE(λ)或+ E,ovs r + EE(λ),+ E,ovs g + EE(λ),+ E,ovs b + 匹配功能。 衍射光栅和模板可以安装在基板的相对侧上,或者它们可以在基板的相同侧上以横向间隔的关系安装,在这种情况下,基板的相对侧被涂覆有反射 材料。 检测器被布置在每个空间滤波器的相邻和后方,以检测由各个滤光器传输的光谱分量,并且整个组件安装在不透光的壳体中,该外壳以期望的间隔关系容纳孔和组件。

    Interface device connected between a LAN and a printer for outputting
formatted debug information about the printer to the printer
    6.
    发明授权
    Interface device connected between a LAN and a printer for outputting formatted debug information about the printer to the printer 失效
    连接在LAN和打印机之间的接口设备,用于向打印机输出有关打印机的格式化调试信息

    公开(公告)号:US5828863A

    公开(公告)日:1998-10-27

    申请号:US489282

    申请日:1995-06-09

    摘要: A network device which interfaces between a local area network (LAN) and an image forming apparatus and which can output debug information. The network device includes a LAN interface for receiving image forming jobs and command signals from the LAN and a peripheral interface for outputting image forming jobs to the image forming apparatus. The network device further includes a storage device that stores debug information regarding the network device configuration for receiving image forming jobs from the LAN and outputting image forming jobs to the image forming apparatus. In addition, the network device has a processor that detects a triggering condition and, in response to the triggering condition, formats the debug information into an image forming job and outputs the formatted debug information to the image forming apparatus.

    摘要翻译: 一种在局域网(LAN)和图像形成装置之间进行接口并能输出调试信息的网络装置。 网络设备包括用于从LAN接收图像形成作业和命令信号的LAN接口以及用于向图像形成装置输出图像形成作业的外围接口。 网络设备还包括存储设备,其存储关于用于从LAN接收图像形成作业的网络设备配置的调试信息,并将图像形成作业输出到图像形成设备。 此外,网络设备具有检测触发条件的处理器,并且响应于触发条件,将调试信息格式化为图像形成作业,并将格式化的调试信息输出到图像形成装置。

    Printer driver having gamut-mapped colors
    9.
    发明授权
    Printer driver having gamut-mapped colors 失效
    具有色域映射颜色的打印机驱动程序

    公开(公告)号:US5699491A

    公开(公告)日:1997-12-16

    申请号:US490557

    申请日:1995-06-15

    申请人: Ron Barzel

    发明人: Ron Barzel

    摘要: A color printer driver for a printer includes a reproduction look-up table (LUT) which stores CMY values for colors both in-gamut and out-of-gamut of the printer. For close-in out-of-gamut colors, the reproduction LUT stores perceptually matched CMY values whereas for far-out-of-gamut colors, the reproduction LUT stores saturation matched CMY values. CMY values for the out-of-gamut colors are obtained by a dual-cone gamut mapping technique in which an actual cone of N-cone arranged surfaces is defined so as to mimic the actual gamut of the printer, an ideal cone of M-cone arranged surfaces is defined so as to mimic an ideal gamut such as the gamut of a typical color monitor, a target out-of-gamut color is projected onto the actual cone and de-saturated until an in-gamut CMY value is obtained, the same target color is projected onto the ideal cone to obtain a fully-saturated CMY value, and a weighted average is obtained of the in-gamut CMY value and the fully-saturated CMY value, the weight being based on a measure of distance between the out-of-gamut target color and its projection onto the actual cone.

    摘要翻译: 用于打印机的彩色打印机驱动器包括:再现查找表(LUT),其存储打印机的色域内和色域外的颜色的CMY值。 对于近距离的色域外色彩,再现LUT存储感知匹配的CMY值,而对于远离色域颜色,再现LUT存储饱和度匹配的CMY值。 通过双锥度色域映射技术获得色域外色彩的CMY值,其中定义了实际锥形N锥形排列表面,以便模拟打印机的实际色域,M- 定义锥形布置表面以模拟理想的色域,例如典型的彩色监视器的色域,将目标色域外的色彩投影到实际锥体上并去饱和,直到获得色域内CMY值, 将相同的目标颜色投影到理想锥体上以获得完全饱和的CMY值,并且获得了色域内CMY值和完全饱和CMY值的加权平均值,该权重基于 色域外的目标颜色和投影到实际锥体上。