公开(公告)号：US06517180B2

公开(公告)日：2003-02-11

申请号：US09819102

申请日：2001-03-27

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

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

IPC: B41J201

CPC classification number: B41J29/393 ,  B41J2/2135

Abstract: 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.

公开(公告)号：US5578813A

公开(公告)日：1996-11-26

申请号：US396826

申请日：1995-03-02

Applicant: Ross R. Allen ,  David Beard ,  Mark T. Smith ,  Barclay J. Tullis

Inventor： Ross R. Allen ,  David Beard ,  Mark T. Smith ,  Barclay J. Tullis

IPC: G06K9/20 ,  G06T1/00 ,  G06T3/00 ,  H04N1/047 ,  H04N1/107 ,  H04N1/193 ,  H01J40/14

CPC classification number: H04N1/047 ,  H04N1/107 ,  H04N1/193 ,  H04N2201/0414 ,  H04N2201/043 ,  H04N2201/04712 ,  H04N2201/04729 ,  H04N2201/04787

Abstract: A scanning device and method of forming a scanned electronic image include an imaging sensor and at least one navigation sensor. In the preferred embodiment, the imaging sensor is a linear array of sensor elements, with a two-dimensional navigation sensor array at each end. The scanning device has three degrees of freedom, since position information from the navigation sensors allows manipulation of an image signal from the imaging sensor to reduce distortion artifacts caused by curvilinear scanning. Acceptable sources of the position information include printed matter and contrast variations dictated by variations in the inherent structure-related properties of the medium on which the scanned image is formed. Illumination for optimal operation of the navigation system may be introduced at a grazing angle in some applications or in the normal to a plane of the original in other applications, but this is not essential.

Abstract translation: 扫描装置和形成扫描电子图像的方法包括成像传感器和至少一个导航传感器。 在优选实施例中，成像传感器是传感器元件的线性阵列，每端具有二维导航传感器阵列。 扫描装置具有三个自由度，因为来自导航传感器的位置信息允许操纵来自成像传感器的图像信号，以减少由曲线扫描引起的失真伪像。 位置信息的可接受源包括由形成扫描图像的介质的固有结构相关属性的变化所规定的印刷物和对比度变化。 导航系统的最佳操作的照明可以在某些应用中以放牧角度引入，也可以在其他应用中引入到原始平面中，但这并不是必须的。

公开(公告)号：US5422014A

公开(公告)日：1995-06-06

申请号：US33589

申请日：1993-03-18

Applicant: Ross R. Allen ,  Gary McLeod

Inventor： Ross R. Allen ,  Gary McLeod

IPC: C02F1/00 ,  G05D21/02 ,  G05D11/08

CPC classification number: G05D21/02 ,  C02F1/008 ,  C02F2103/023 ,  C02F2103/42

Abstract: An automatic system to precisely maintain bactericidal action in a reservoir of water equipped with a recirculation system, such as a swimming pool, decorative fountain, spa, cooling water reservoir or the like. The automatic system includes: a service loop which bypasses a portion of the recirculating water past sensors which measure the pH and oxygen reduction potential (ORP) of the water and in which acid and halogen are injected by a chemical feed unit; an electronics unit for determining the injection quantity of the acid and/or halogen needed to restore pH and ORP to stored set-points, and for controlling the chemical feed unit in response to the injection time determination; and an optional telecommunication unit for reporting process control status to a remote location and allowing modification of the process parameters, selection of operating modes, and performance of diagnostic tests from the remote location. The service loop is constructed so that the acid injection results in water having a low pH flowing turbulently over the sensors and the halogen injector to keep the sensors and the halogen injector free from scale buildup and to produce data to the electronics unit from which the response characteristics of the sensors can be determined.

Abstract translation: 一种在装有循环系统（如游泳池，装饰喷泉，水疗中心，冷却水库等）的水库中精确地保持杀菌作用的自动系统。 该自动系统包括：一个服务循环，其绕过循环水的一部分经过测量水的pH和氧还原电位（ORP）的传感器，其中酸和卤素通过化学进料单元注入; 电子单元，用于确定将pH和ORP恢复到存储的设定点所需的酸和/或卤素的注入量，以及响应于注射时间确定来控制化学品进料单元; 以及可选的电信单元，用于向远程位置报告过程控制状态，并允许从远程位置修改过程参数，操作模式的选择以及诊断测试的性能。 服务回路被构造成使得酸注入导致具有低pH的水在传感器和卤素注射器上湍流地流动，以保持传感器和卤素注射器不会积垢，并且向电子单元产生数据，电子单元从响应 可以确定传感器的特性。

公开(公告)号：US5406315A

公开(公告)日：1995-04-11

申请号：US923121

申请日：1992-07-31

Applicant: Ross R. Allen ,  William J. West

Inventor： Ross R. Allen ,  William J. West

IPC: B41J2/015 ,  B41J2/125 ,  B41J2/175 ,  B41J2/195 ,  G01F23/22 ,  G01K11/12 ,  G01N21/17

CPC classification number: B41J2/17593 ,  B41J2/17566 ,  B41J2/195 ,  G01F23/22 ,  B41J2002/17573

Abstract: A method and system for regulating the temperature of a hot melt ink wherein light reflected from a phase change material adjacent to the ink is detected, and a closed loop control signal proportional to the intensity of the reflected light is generated. The control signal is applied to a heater element for the ink and provides good temperature control thereof. In addition, the phase change material is used to generate an ink level indication signal which is also processed in a closed loop servo system in order to provide control over levels of the hot melt ink during operation of an ink jet printhead. In the embodiment of the present invention for controlling both ink temperature and ink levels within a pen body housing, there is provided a means and method for simultaneously sensing the liquid level and temperature at the solid/liquid interface within the pen body housing. This is done by simultaneously detecting the reflectivity of separate phase change material components located within or adjacent to the pen body housing and then processing closed loop detection signals which are optically coupled by way of control logic from the separate phase change material components to one or more heater elements located adjacent to the pen body housing. The present invention is also directed to a new and improved pen body construction which is uniquely suited for implementing the above novel method and system. This construction employs a flex circuit, an ink jet printhead and a multiple sensor assembly mounted adjacent to one wall of the pen body housing.

Abstract translation: 用于调节热熔墨的温度的方法和系统，其中检测到从邻近墨的相变材料反射的光，并且产生与反射光的强度成比例的闭环控制信号。 控制信号被施加到用于油墨的加热器元件并且提供其良好的温度控制。 此外，相变材料用于产生也在闭环伺服系统中处理的墨水量指示信号，以便在喷墨打印头的操作期间提供对热熔墨的水平的控制。 在本发明的用于控制笔体外壳内的油墨温度和油墨水平的实施例中，提供了一种用于同时感测笔体壳体内的固/液界面处的液位和温度的装置和方法。 这是通过同时检测位于笔体外壳内或附近的单独的相变材料组件的反射率来完成的，然后处理闭环检测信号，该闭环检测信号通过控制逻辑从单独的相变材料组件光耦合到一个或多个 位于笔体外壳附近的加热元件。 本发明还涉及一种新的改进的笔体结构，其特别适用于实现上述新颖的方法和系统。 这种结构采用柔性电路，喷墨打印头和安装在笔体外壳的一个壁附近的多个传感器组件。

公开(公告)号：US4550326A

公开(公告)日：1985-10-29

申请号：US490753

申请日：1983-05-02

Applicant: Ross R. Allen ,  Daniel E. Allen

Inventor： Ross R. Allen ,  Daniel E. Allen

IPC: B41J2/045 ,  B41J2/05 ,  B41J2/055 ,  B41J2/135 ,  G01D15/18

CPC classification number: B41J2/1433 ,  B41J2/055 ,  B41J2/14032 ,  B41J2002/14387 ,  B41J2002/14475

Abstract: A nozzle plate for impulsive jet devices is proposed where the quality of ejected droplets is improved by means of additional non-emitting orifices. These orifices may act as fluid accumulators and tuned or untuned absorbers of pressure disturbances to optimize drop quality and reduce fluidic crosstalk between adjacent drop generators. The presence of these orifices permits additional degrees-of-freedom in the design of high-quality impulsive jet devices. Sufficient crosstalk reduction results that crosstalk reduction barriers can be eliminated.

Abstract translation: 提出了一种用于脉冲喷射装置的喷嘴板，其中喷射液滴的质量通过附加的不发射孔改善。 这些孔可以作为流体蓄能器和压力扰动的调节或未调谐的吸收器，以优化液滴质量并减少相邻液滴发生器之间的流体串扰。 这些孔的存在允许在设计高质量脉冲喷射装置时的额外的自由度。 足够的串扰减少导致可以消除串扰降低屏障。