利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

74 条记录 (耗时 0.036 秒)

    Toner quantity measuring technique in an electrophotographic printer
    1.
    发明授权
    Toner quantity measuring technique in an electrophotographic printer 失效
    电子照相打印机中的调色剂量测量技术

    公开(公告)号：US5987269A

    公开(公告)日：1999-11-16

    申请号：US23778

    申请日：1998-02-13

    申请人： Ross R. Allen ,  Barclay J. Tullis ,  Jun Gao

    发明人： Ross R. Allen ,  Barclay J. Tullis ,  Jun Gao

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0856 ,  G03G15/086

    摘要： A printer is provided with a transmit electrode and a receive electrode with a dry-toner cartridge located therebetween. The transmit and receive electrodes act as two plates of a capacitor, with the toner within the toner cartridge making up a portion of the dielectric between the two capacitor plates. An oscillating transmit signal is then applied to the transmit electrode, and a signal corresponding to the capacitance between the opposing electrodes is detected. The changing capacitance due to the changing toner quantity causes a change in the received signal. The value of the received signal is then converted into the quantity of toner residing between the opposing electrodes, and this quantity is displayed to the user. Arrangements of transmit and receive electrodes may be employed within the printer to not only sense the overall quantity of toner but the distribution of toner within the toner cartridge.

    摘要翻译： 打印机设置有发射电极和接收电极，其间具有位于其间的干墨粉盒。 发射和接收电极用作电容器的两个板，调色剂盒内的调色剂构成两个电容器板之间的电介质的一部分。 然后将振荡的发射信号施加到发射电极，并且检测对应于相对电极之间的电容的信号。 由于调色剂量的变化导致的变化的电容导致接收信号的变化。 然后将接收到的信号的值转换为位于相对电极之间的调色剂量，并向用户显示该数量。 可以在打印机内使用发射和接收电极的布置，以便不仅感测调色剂的总量，而且调色剂盒内的调色剂分布。

    Identification of recording media
    2.
    发明授权
    Identification of recording media 有权
    识别记录媒体

    公开(公告)号：US06838687B2

    公开(公告)日：2005-01-04

    申请号：US10120613

    申请日：2002-04-11

    申请人： Barclay J. Tullis ,  Ross R. Allen ,  Carl Picciotto ,  Jun Gao

    发明人： Barclay J. Tullis ,  Ross R. Allen ,  Carl Picciotto ,  Jun Gao

    IPC分类号： B41J19/18 ,  B41J11/00 ,  G01N21/27 ,  G01N21/86 ,  G01V8/00

    CPC分类号： B41J11/0095 ,  B41J11/009

    摘要： The present invention is a method and device for identifying recording media in a printer. The invention utilizes fine structure of the media revealed by illumination from one or more directions to distinguish among different kinds of plain papers, coated papers, such as glossy papers, and transparency films. Multiple light sources at different incidence and/or orientation angles apply light on the test surface, and scattered light is converted into signals and then analyzed. Various metric and analysis techniques can be applied to the signals to determine the media type.

    摘要翻译： 本发明是用于在打印机中识别记录介质的方法和装置。 本发明利用通过一个或多个方向的照明显示的介质的精细结构来区分不同种类的普通纸，涂布纸，例如光面纸和透明膜。 不同入射角和/或取向角的多个光源将光照射在测试表面上，并将散射光转换为信号，然后进行分析。 可以将各种度量和分析技术应用于信号以确定介质类型。

    Dot sensing, color sensing and media sensing by a printer for quality control
    3.
    发明授权
    Dot sensing, color sensing and media sensing by a printer for quality control 失效

    公开(公告)号：US06517180B2

    公开(公告)日：2003-02-11

    申请号：US09819102

    申请日：2001-03-27

    申请人： Barclay J Tullis ,  Ross R. Allen ,  Jun Gao ,  Carl E Picciotto

    发明人： Barclay J Tullis ,  Ross R. Allen ,  Jun Gao ,  Carl E Picciotto

    IPC分类号： B41J201

    CPC分类号： B41J29/393 ,  B41J2/2135

    摘要： A print monitoring approach is provided in which sequences of irregular two-dimensional frames of image information are captured at a resolution sufficiently high to enable details of individual droplets to be identified. The approach may be used to monitor individual droplets deposited on a medium, such as a sheet of paper, by an inkjet printhead. An optical detector having an irregular two-dimensional array of closely spaced sensor elements is mounted for movement with the inkjet printhead or other print assembly. A processor is responsive to the image frames from the optical detector to adjust print quality parameters when the physical characteristics of the imaged droplets are detected as being outside of a preselected range of acceptability. The physical characteristics that are resolved may include gyrational information or different droplet position information. Optical dot gain can also be measured.

    Capacitive sensor for sensing the amount of material in a container
    4.
    发明授权
    Capacitive sensor for sensing the amount of material in a container 有权
    用于感测容器中材料量的电容式传感器

    公开(公告)号：US06472887B1

    公开(公告)日：2002-10-29

    申请号：US09606417

    申请日：2000-06-28

    申请人： Barclay J. Tullis ,  Carl Picciotto ,  Jun Gao

    发明人： Barclay J. Tullis ,  Carl Picciotto ,  Jun Gao

    IPC分类号： G01R2726

    CPC分类号： G01F23/263

    摘要： One embodiment of the invention is a capacitive sensor for sensing the amount of material in a container. This embodiment includes an oscillator that generates an oscillating signal. This oscillator includes an integrating amplifier that is formed by (1) an operational amplifier that has a low-impedance output and a virtually-grounded input, and (2) a capacitor that has a capacitance which depends on the amount of material in the container. The capacitor connects between the low impedance output and the virtually-grounded input of the operational amplifier In some embodiments, the operational amplifier includes a first amplifier and a second amplifier that are connected in series, with an output of the second amplifier fed back through the capacitor to the input of the first amplifier.

    摘要翻译： 本发明的一个实施例是用于感测容器中的材料量的电容式传感器。 该实施例包括产生振荡信号的振荡器。 该振荡器包括积分放大器，该放大器由（1）具有低阻抗输出和虚拟接地输入的运算放大器形成，以及（2）电容器，其具有取决于容器中材料量的电容 。 电容器连接在低阻抗输出和运算放大器的虚拟接地输入之间。在一些实施例中，运算放大器包括串联连接的第一放大器和第二放大器，第二放大器的输出反馈通过 电容器到第一放大器的输入。

    Method and apparatus for distinguishing transparent media
    5.
    发明授权
    Method and apparatus for distinguishing transparent media 有权
    用于区分透明介质的方法和装置

    公开(公告)号：US06497179B1

    公开(公告)日：2002-12-24

    申请号：US09909710

    申请日：2001-07-19

    申请人： Ross R. Allen ,  Carl E Picciotto ,  Jun Gao

    发明人： Ross R. Allen ,  Carl E Picciotto ,  Jun Gao

    IPC分类号： B41F154

    CPC分类号： B41J11/009 ,  B41J11/0095

    摘要： A printer having a transparency film discrimination system is disclosed. The printer includes a feed mechanism, an illumination source, a detector, and a processor. Light from the illumination source is reflected on or transmitting through the print medium (such as a transparent film) and is detected by the detector. The detected light is analyzed to determine the type of the medium. If the determined type of the print medium is not acceptable for the printer, then control signal is provided to the printer to halt the printing process as to avoid damage to the printer.

    摘要翻译： 公开了一种具有透明胶片鉴别系统的打印机。 打印机包括进给机构，照明源，检测器和处理器。 来自照明源的光被反射在打印介质（例如透明膜）上或通过打印介质传输，并由检测器检测。 分析检测到的光以确定介质的类型。 如果确定的打印介质的类型对于打印机是不可接受的，则将控制信号提供给打印机以停止打印处理，以避免损坏打印机。

    Cluster-weighted modeling for media classification
    6.
    发明授权
    Cluster-weighted modeling for media classification 失效
    媒体分类的群集加权建模

    公开(公告)号：US06894262B2

    公开(公告)日：2005-05-17

    申请号：US10050346

    申请日：2002-01-15

    申请人： Jun Gao ,  Ross R. Allen

    发明人： Jun Gao ,  Ross R. Allen

    IPC分类号： B41J11/00 ,  G01N21/17 ,  H01L27/00

    CPC分类号： B41J11/009

    摘要： A probabilistic input-output system is used to classify media in printer applications. The probabilistic input-output system uses at least two input parameters to generate an output that has a joint dependency on the input parameters. The input parameters are associated with image-related measurements acquired from imaging textural features that are characteristic of the different classes (types and/or groups) of possible media. The output is a best match in a correlation between stored reference information and information that is specific to an unknown medium of interest. Cluster-weighted modeling techniques are used for generating highly accurate classification results. Within the imaging process, grazing angle illumination (i.e., introducing light at an angle of at least 45 degrees to the normal of the surface being imaged) provides sufficient contrasts for distinguishing the structural features (e.g., paper fibers) of the unknown medium, but non-grazing illumination may be used when specular measurements are to be obtained.

    摘要翻译： 概率输入输出系统用于对打印机应用中的介质进行分类。 概率输入输出系统使用至少两个输入参数来生成与输入参数有联合依赖关系的输出。 输入参数与从可能介质的不同类别（类型和/或组）的特征的成像纹理特征获得的图像相关测量相关联。 输出是存储的参考信息和特定于感兴趣的介质的信息之间的相关性中的最佳匹配。 群集加权建模技术用于生成高度准确的分类结果。 在成像过程中，掠射角度照明（即，以与被成像的表面的法线成45度角的方式引入光）提供了足够的对比来区分未知介质的结构特征（例如纸纤维），但是 当要获得镜面测量时，可以使用非放牧照明。

    Displacement determination system and method using separated imaging areas
    7.
    发明授权
    Displacement determination system and method using separated imaging areas 有权
    位移测定系统和使用分离成像区域的方法

    公开(公告)号：US07697724B1

    公开(公告)日：2010-04-13

    申请号：US11438843

    申请日：2006-05-23

    申请人： Jun Gao ,  Carl E. Picciotto ,  Ross R. Allen

    发明人： Jun Gao ,  Carl E. Picciotto ,  Ross R. Allen

    IPC分类号： G06K9/00 ,  G01N21/86

    CPC分类号： G06T7/33

    摘要： A system including a data acquisition system and a processing system is provided. The data acquisition system is configured to capture a first reference frame that includes a first feature in a first imaging area on a substrate prior to a relative position between the data acquisition system and the substrate being adjusted by approximately a predetermined distance during a first time period, capture a first comparison frame that includes the first feature in a second imaging area on the substrate and a second reference frame that includes a second feature in the first imaging area on the substrate subsequent to the first time period, and capture a second comparison frame that includes the second feature in the second imaging area on the substrate subsequent to the relative position being adjusted by approximately the predetermined distance during a second time period that is subsequent to the first time period. The second imaging area is separated from the first imaging area by the predetermined distance. The processing system is configured to determine a displacement sum using a first displacement between the first feature in the first reference frame and the first feature in the first comparison frame and a second displacement between the second feature in the second reference frame and the second feature in the second comparison frame.

    摘要翻译： 提供了一种包括数据采集系统和处理系统的系统。 数据采集​​系统被配置为在第一时间段内在数据采集系统和衬底之间的相对位置被调整大约预定距离之前捕获包括衬底上的第一成像区域中的第一特征的第一参考帧 捕获包括衬底上的第二成像区域中的第一特征的第一比较帧和在第一时间段之后在衬底上的第一成像区域中包括第二特征的第二参考帧，并且捕获第二比较帧 其包括在相对位置之后的第二成像区域中的第二特征在第一时间段之后的第二时间段期间被调整大约预定距离。 第二成像区域与第一成像区域分开预定距离。 处理系统被配置为使用第一参考帧中的第一特征与第一比较帧中的第一特征之间的第一位移和第二参考帧中的第二特征与第二特征之间的第二位移来确定位移和 第二个比较框架。

    Free-radical polymerization process producing aqueous polymer dispersion with low residual monomer content utilizing oil and water soluble initiators
    9.
    发明授权
    Free-radical polymerization process producing aqueous polymer dispersion with low residual monomer content utilizing oil and water soluble initiators 有权
    使用油和水溶性引发剂制备具有低残留单体含量的聚合物水分散体的自由基聚合方法

    公开(公告)号：US08034885B2

    公开(公告)日：2011-10-11

    申请号：US10566248

    申请日：2004-07-08

    申请人： Jun Gao ,  Xiang-Ming Kong ,  Klaus-Dieter Hungenberg ,  Juergen Schmidt-Thuemmes

    发明人： Jun Gao ,  Xiang-Ming Kong ,  Klaus-Dieter Hungenberg ,  Juergen Schmidt-Thuemmes

    IPC分类号： C08F2/00 ,  C08F2/16 ,  C08G85/00

    CPC分类号： C08F2/22

    摘要： The present invention provides a novel one-step process for preparing an aqueous polymer dispersion by the free radical aqueous emulsion polymerization comprising mixing at least water, a dispersant, and an oil-soluble initiator; raising a temperature from the starting to the end reaction temperature while metering at least ethylenically unsaturated monomers and a water-soluble initiator into a reaction vessel, conducting polymerization of the monomers in the presence of the water-soluble initiator at a temperature up to the end reaction temperature, and when the temperature has reached the end reaction temperature, conducting polymerization by the oil-soluble initiator. The oil-soluble initiator is inactive at the starting reaction temperature and becomes more active as a temperature approaches the end reaction temperature at which the oil-soluble initiator is fully active.

    摘要翻译： 本发明提供一种通过自由基水乳液聚合制备含水聚合物分散体的新型一步法，包括至少混合水，分散剂和油溶性引发剂; 从开始到结束的反应温度升高温度，同时至少将烯属不饱和单体和水溶性引发剂计量到反应容器中，在水溶性引发剂的存在下在最终达到最终温度下进行单体聚合 反应温度，当温度达到最终反应温度时，通过油溶性引发剂进行聚合。 油溶性引发剂在起始反应温度下无活性，随着温度接近油溶性引发剂完全活化的最终反应温度，其变得更有活性。