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1. 发明授权

US06470021B1 Computer network switch with parallel access shared memory architecture 有权
标题翻译：具有并行访问共享内存架构的计算机网络交换机
公开(公告)号：US06470021B1
公开(公告)日：2002-10-22
申请号：US09172101
申请日：1998-10-05
申请人： Bernard N. Daines , Greg W. Davis , Thomas J. Hammond , David K. Couch , Christopher A. Schalick
发明人： Bernard N. Daines , Greg W. Davis , Thomas J. Hammond , David K. Couch , Christopher A. Schalick
IPC分类号： H04L1256
CPC分类号： H04L49/3072 , H04L49/103 , H04L49/351
摘要： A packet switch includes a multiple of bidirectional ports that are each connected by dedicated signal paths to a multiple of memory subsystems that in turn are connected to shared memory within the switch. The signal path from each port carries a fragment of a data stream between the port and each memory subsystem. The ports send and receive data stream fragments in parallel from the memory subsystems. This parallel action reduces the bandwidth required of a memory subsystem by dividing the port's data stream among the multiple memory subsystems. In storing data for forwarding to another port, each memory subsystem selects on a time division basis in parallel the data stream fragments from the same port and stores them in memory. In retrieving data from memory for a port, each memory subsystem selects on a time division basis in parallel the same port to receive the data stream fragments read from memory. The bit width of the signal paths between the ports and memory subsystems is reduced by sending smaller, individual data stream fragments between ports and memory subsystems and sending larger, aggregate data stream fragments between memory subsystems and memory. Within each memory subsystem are modules that combine individual data stream fragments into aggregate data stream fragments for storage in memory and modules that split aggregate data stream fragments read from memory into individual data stream fragments for transmission to ports.
摘要翻译：分组交换机包括多个双向端口，每个双向端口通过专用信号路径连接到存储器子系统的多个，其又连接到交换机内的共享存储器。来自每个端口的信号路径携带端口和每个存储器子系统之间的数据流的片段。端口从存储器子系统并行发送和接收数据流片段。这种并行操作通过在多个存储器子系统之间划分端口的数据流来减少存储器子系统所需的带宽。在存储用于转发到另一端口的数据时，每个存储器子系统并行地选择来自同一端口的数据流片段并且将它们存储在存储器中。在从端口的存储器检索数据时，每个存储器子系统并行地选择同一端口的时分，以接收从存储器读取的数据流片段。通过在端口和存储器子系统之间发送较小的单个数据流片段，并在存储器子系统和存储器之间发送更大的聚合数据流片段来减少端口和存储器子系统之间的信号路径的位宽度。在每个存储器子系统内是将各个数据流片段组合成用于存储在存储器中的聚合数据流片段的模块，以及将从存储器读取的聚合数据流片段分割成用于传输到端口的各个数据流片段的模块。

2. 发明授权

US5272493A Method and apparatus for registration of sequential images in a single pass, multi-LED printbar printer 失效
标题翻译：用于在单程，多LED打印机打印机中注册顺序图像的方法和装置
公开(公告)号：US5272493A
公开(公告)日：1993-12-21
申请号：US862150
申请日：1992-04-02
申请人： Fred F. Hubble, III , Thomas J. Hammond , James P. Martin
发明人： Fred F. Hubble, III , Thomas J. Hammond , James P. Martin
IPC分类号： B41J2/41 , B41J2/44 , B41J2/45 , B41J2/455 , G03G15/01 , G03G21/00 , G03G21/14 , G05D3/12 , H04N1/047 , H04N1/12 , H04N1/193 , H04N1/29 , G01D15/14 , G01D9/42 , G01D15/06
CPC分类号： H04N1/0473 , G03G2215/017 , H04N1/12 , H04N1/193 , H04N2201/04705 , H04N2201/04755 , H04N2201/04786
摘要： A precision belt hole sensor and associated conditioning circuitry provides precise trigger signals that enable synchronous printing in a color printer. An image bar recording system, which, in a preferred embodiment, utilizes a plurality of LED image bars, forms a plurality of latent images on a moving photoreceptor which may subsequently be developed in different colors. A pair of sensors associated with each printbar views illuminated pixels at the end of a printbar, through a pair of oppositely aligned photoreceptor holes. The signals detected by the sensor are amplified and processed to provide inputs to a comparitor circuit which generates an output signal at a time which precisely defines the passage of the trailing edge of the hole, past the sensors. The signal from the comparitor is used to accomplish skew registration of the printbar and to provide sync signals to enable precise formation of the leading edge of the associated image frame.
摘要翻译：精密带孔传感器和相关的调理电路提供精确的触发信号，可在彩色打印机中进行同步打印。在优选实施例中，利用多个LED图像条的图像条记录系统在可以随后以不同颜色显影的移动感光体上形成多个潜像。与每个打印机相关联的一对传感器通过一对相对对准的感光体孔来观察在打印头端部处的发光像素。由传感器检测到的信号被放大和处理，以向比较器电路提供输入，该比较器电路在精确地限定孔的后缘通过传感器的时间产生输出信号。来自比较器的信号用于实现打印条的偏斜配准，并且提供同步信号以能够精确地形成相关图像帧的前沿。

3. 发明授权

US4529912A Mechanism and method for controlling the temperature and light output of a fluorescent lamp 失效
标题翻译：用于控制荧光灯的温度和光输出的机构和方法
公开(公告)号：US4529912A
公开(公告)日：1985-07-16
申请号：US478748
申请日：1983-03-25
申请人： Karl A. Northrup , Thomas J. Hammond
发明人： Karl A. Northrup , Thomas J. Hammond
IPC分类号： H05B41/16 , H05B41/36 , H05B41/392 , H01J7/24 , H01J13/32 , H01J19/74 , H01J61/52
CPC分类号： H05B41/3922
摘要： The phosphor light output of a fluorescent lamp is controlled and optimized. The phosphor light output of the lamp corresponds to a particular level of either the vapor mercury or rare fill gas contained within the lamp envelope. This gas emission level is initially determined for a given system; a monitoring circuit thereafter detects any deviation from this level, generates a signal and sends it to a controller. The controller adjusts the operation of a mercury cold spot temperature-regulating device causing the cold spot temperature to increase or decrease until the optimum temperature and hence lamp phosphor light output is reestablished.
摘要翻译：荧光灯的荧光体光输出被控制和优化。灯的荧光体光输出对应于灯泡内包含的蒸气汞或稀有填充气体的特定水平。该气体排放水平最初是针对给定的系统确定的; 监控电路此后检测与该电平的任何偏差，产生信号并将其发送到控制器。控制器调节水银冷点温度调节装置的操作，使冷点温度升高或降低直到最佳温度，从而重新建立灯荧光体光输出。

4. 再颁专利

USRE31499E Illumination system utilizing two opposing DC lamps with an optimum barrel-shaped slit 失效
标题翻译：照明系统利用两个相对的直流灯具有最佳的桶形狭缝
公开(公告)号：USRE31499E
公开(公告)日：1984-01-17
申请号：US87174
申请日：1979-10-22
申请人： Charles F. Gallo, Jr. , Thomas J. Hammond , James D. Rees
发明人： Charles F. Gallo, Jr. , Thomas J. Hammond , James D. Rees
IPC分类号： G03B27/54
CPC分类号： G03B27/542
摘要： .[.A symmetrical light intensity distribution profile is achieved by placing a pair of similar asymmetrical linear DC gas discharge lamps in parallel position but opposed in polarity. The individual asymmetrical distributions of the lamps combine in a symmetrical total intensity distribution. A desired "butterfly" or other intensity distribution profile can be achieved..]. .Iadd.The invention relates to an illumination system which provides nonuniform illumination along an object plane in the dimension of an illumination source which includes two linear lamps. The lamps have their anodes and cathodes connected in reverse fashion relative to each other; each lamp provides its own asymmetrical light output distribution pattern but the resultant output of both lamps is a symmetrical pattern which provides the characteristic nonuniform illumination on the object plane. .Iaddend.

5. 发明授权

US4086010A Illumination system utilizing two opposing DC lamps with an optimum barrel-shaped slit 失效
标题翻译：照明系统利用两个相对的直流灯具有最佳的桶形狭缝
公开(公告)号：US4086010A
公开(公告)日：1978-04-25
申请号：US737299
申请日：1976-11-01
申请人： Charles F. Gallo, Jr. , Thomas J. Hammond , James D. Rees
发明人： Charles F. Gallo, Jr. , Thomas J. Hammond , James D. Rees
IPC分类号： G03B27/54
CPC分类号： G03B27/542
摘要： A symmetrical light intensity distribution profile is achieved by placing a pair of similar asymmetrical linear DC gas discharge lamps in parallel position but opposed in polarity. The individual asymmetrical distributions of the lamps combine in a symmetrical total intensity distribution. A desired "butterfly" or other intensity distribution profile can be achieved.
摘要翻译：通过将一对相似的非对称线性直流气体放电灯置于平行位置但极性相反的方式实现对称的光强分布曲线。灯的单个不对称分布以对称的总强度分布组合。可以实现期望的“蝴蝶”或其他强度分布轮廓。

6. 发明授权

US07496042B2 Digital loop diagnostic port test before insertion 有权
标题翻译：数字循环诊断端口插入前测试
公开(公告)号：US07496042B2
公开(公告)日：2009-02-24
申请号：US10886968
申请日：2004-07-07
申请人： Bruce E. Johnson , Thomas J. Hammond-Doel , Donna M. Jollay , Michael I. Thompson
发明人： Bruce E. Johnson , Thomas J. Hammond-Doel , Donna M. Jollay , Michael I. Thompson
IPC分类号： H04L12/26
CPC分类号： H04L12/42 , H04L43/0817 , H04L43/10
摘要： Methods and associated hub arrangements are described for use in diagnosis and recovery in high performance digital loops such as, for example, those seen in Fibre Channel systems. In one system having a hub configured for interconnection of a plurality of stations as part of a digital system such that digital data flows between the stations based on operational status of the system, an arrangement forms part of the hub which arrangement is connectable at points within the hub and between at least two different pairs of the stations for monitoring certain characteristics of the data in a way which provides for non-invasive identification of one or more conditions related to the operational status of the system.
摘要翻译：描述了用于高性能数字环路（例如在光纤通道系统中看到的那些）的诊断和恢复中的方法和相关的集线器布置。在一个具有集线器的系统中，该集线器被配置为用作数字系统的一部分的多个站点的互连，使得数字数据基于系统的操作状态在站之间流动，这种布置形成了集线器的一部分，该布置可在集线器以及至少两个不同的站对之间，用于以提供非侵入式识别与系统的操作状态相关的一个或多个条件的方式监视数据的某些特征。

7. 发明授权

US06181358B2 High resolution printbar pixel geometries 有权
标题翻译：高分辨率的printbar像素几何
公开(公告)号：US06181358B2
公开(公告)日：2001-01-30
申请号：US09195888
申请日：1998-11-19
申请人： Ronald E. Jodoin , Thomas J. Hammond , Henry P. Jankowski , Robert P. Loce
发明人： Ronald E. Jodoin , Thomas J. Hammond , Henry P. Jankowski , Robert P. Loce
IPC分类号： B41J2385
CPC分类号： B41J2/451
摘要： Arrays of light emitting diodes, and LED printbars and electrophotographic marking machines that use arrays of light emitting diode, that have active area geometries that produce compact irradiance profiles. Compact irradiance profiles are achieved by placing the diode electrodes along the outer periphery of the light emitting active areas. When used with gradient index lenses, such light emitting diodes produce light spots having more compact irradiance profiles. When such light emitting diodes and gradient index lenses are incorporated into LED printbars, and when those printbars are used in expose stations of electrophotographic marking machines, improved composite images can result.
摘要翻译：发光二极管阵列，以及使用发光二极管阵列的LED打印条和电子照相打标机，其具有产生紧凑辐照度轮廓的有源面积几何形状。通过将二极管电极沿着发光有源区域的外周放置来实现紧凑的辐照度曲线。当与梯度折射率透镜一起使用时，这种发光二极管产生具有更紧密辐照度轮廓的光点。当这种发光二极管和梯度折射率透镜并入LED打印棒中时，并且当这些印刷线用于电子照相打标机的曝光站时，可以产生改进的合成图像。

8. 发明授权

US5394223A Apparatus for image registration 失效
标题翻译：图像配准设备
公开(公告)号：US5394223A
公开(公告)日：1995-02-28
申请号：US930642
申请日：1992-08-17
申请人： Steven C. Hart , Fred F. Hubble, III , Thomas J. Hammond , Jeffrey J. Folkins , James P. Martin
发明人： Steven C. Hart , Fred F. Hubble, III , Thomas J. Hammond , Jeffrey J. Folkins , James P. Martin
IPC分类号： B41J2/51 , B41J2/385 , B41J2/46 , G03G15/01 , G03G15/36 , G03G21/14 , G03G5/00
CPC分类号： G03G15/0152 , G03G15/0163
摘要： An apparatus for positional tracking a moving photoconductive belt and adjusting an imager in an electrophotographic printing machine to correct for alignment errors when forming a composite image. Registration errors are sensed by developing an appropriate set of target marks, detecting the target marks, and controlling the position of the imager.
摘要翻译：一种用于位置跟踪移动光电导带并调整电子照相印刷机中的成像器的装置，以校正形成复合图像时的对准误差。通过开发适当的目标标记集，检测目标标记和控制成像器的位置来感测注册错误。

9. 发明授权

US5260725A Method and apparatus for registration of sequential images in a single pass, color xerographic printer 失效
标题翻译：用于在单程中注册顺序图像的方法和装置，彩色静电印刷机
公开(公告)号：US5260725A
公开(公告)日：1993-11-09
申请号：US946703
申请日：1992-09-18
申请人： Thomas J. Hammond
发明人： Thomas J. Hammond
IPC分类号： B41J2/525 , B41J2/44 , B41J2/45 , B41J2/455 , G03G13/01 , G03G15/01 , H04N1/113 , H04N1/23 , H04N1/50 , G03G21/00
CPC分类号： G03G15/0152 , G03G15/0163 , H04N1/506 , G03G2215/0016 , G03G2215/00164 , G03G2215/0161 , G03G2215/017
摘要： A single pass, hybrid ROS/print bar system provides a plurality of latent images which may subsequently be developed in different colors. A ROS unit is initially aligned so that each scan line is registered in the process direction. The alignment is accomplished by forming a pair of opposed V-shaped apertures in the surface of the belt and detecting scan line cross-over of the legs of the V. These cross-overs are manifested as two sets of pulses generated by sensors associated with each target leg. The time differences between pulse sets are compared and the scan line is rotated until the time differences are equal. Once the ROS is registered for skew, one or more print bars are registered by enabling non-image pixels and comparing the output generated by detectors when the lit pixels are viewed through the V-shaped aperture.
摘要翻译：单通，混合ROS /打印条系统提供多个可以随后以不同颜色开发的潜像。初始对齐ROS单元，使得每个扫描线在过程方向上被注册。该对准是通过在带的表面形成一对相对的V形孔并且检测V的腿的扫描线交叉来实现的。这些交叉表现为由与传感器相关联的传感器产生的两组脉冲每个目标腿。比较脉冲组之间的时间差，旋转扫描线直到时间差相等。一旦ROS注册为歪斜，通过启用非图像像素并比较当通过V形孔径观看点亮像素时由检测器产生的输出来记录一个或多个打印条。

10. 发明授权

US5168283A Method and apparatus for charged area development printing with high and low resolution image bars 失效
标题翻译：用于高分辨率和低分辨率图像条的带电区域开发印刷的方法和装置
公开(公告)号：US5168283A
公开(公告)日：1992-12-01
申请号：US664729
申请日：1991-03-05
申请人： Thomas J. Hammond , James D. Rees
发明人： Thomas J. Hammond , James D. Rees
IPC分类号： G03G15/32
CPC分类号： G03G15/326 , G03G15/04054
摘要： A printing system operating in a charged area development environmental utilizes a high resolution image print bar in cooperation with a low resolution image discharge bar to expose a charged surface of a photoreceptor with a minimum of stress being applied to the high resolution bar. The high resolution bar is addressed from an image data source so as to expose areas of the photoreceptor which correspond to informational areas of the image being printed. The low resolution bar is addressed from the same data source so as to discharge the photoreceptor surface in non-informational areas such as background areas and interimage areas. In a preferred embodiment, both the high and the low resolution bars are LED arrays located in a common exposure station.
摘要翻译：在充电区域开发环境中操作的打印系统利用低分辨率图像放大条来配合高分辨率图像打印条，以将最小的应力施加到高分辨率条来曝光感光体的带电表面。从图像数据源寻址高分辨率条，以便曝光对应于所打印图像信息区域的感光体区域。低分辨率条从相同的数据源寻址，以便在诸如背景区域和图像间区域的非信息区域中放电感光体表面。在优选实施例中，高分辨率和低分辨率条都是位于公共曝光站中的LED阵列。

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