公开(公告)号：US07894094B2

公开(公告)日：2011-02-22

申请号：US10946655

申请日：2004-09-22

申请人： Aron Nacman ,  Daniel A. Mohabir ,  Lisa M. Schlachter ,  Dawn M. Lapietra ,  James P. Guy ,  Brian R. Caffee

发明人： Aron Nacman ,  Daniel A. Mohabir ,  Lisa M. Schlachter ,  Dawn M. Lapietra ,  James P. Guy ,  Brian R. Caffee

IPC分类号： G06F15/00

CPC分类号： G06T3/606 ,  H04N1/3877

摘要： A system and method to provide 180-degree rotation of image data at full throughput. The system includes a memory access controller that writes bursts of image data into a rotation buffer. The image data is then read out of the rotation buffer in the reverse order from which it was written to thereby accomplish rotation. By alternating the position in the rotation buffer in which the image data is written such that an image is either written into the buffer from top and read from the bottom or written into the buffer from the bottom and read out from the top, a one page rotation buffer of can be used to concurrently process two pages.

摘要翻译： 以完全吞吐量提供180度旋转图像数据的系统和方法。 该系统包括将图像数据的脉冲串写入旋转缓冲器的存储器存取控制器。 然后，图像数据以与之相反的顺序读出旋转缓冲器，从而完成旋转。 通过交替写入图像数据的旋转缓冲器中的位置，使得图像被从顶部写入缓冲器并从底部读取或从底部写入缓冲器并从顶部读出，一页 旋转缓冲区可用于同时处理两页。

公开(公告)号：US5257567A

公开(公告)日：1993-11-02

申请号：US888948

申请日：1992-05-26

申请人： Kris J. Walker ,  Lisa M. Schlachter ,  Eugene J. Manno

发明人： Kris J. Walker ,  Lisa M. Schlachter ,  Eugene J. Manno

IPC分类号： B26D1/38 ,  B26D1/56 ,  B26D5/20 ,  G03G15/00 ,  B26D5/00

CPC分类号： G03G15/6523 ,  B26D1/565 ,  B26D5/20 ,  G03G2215/00455 ,  Y10T83/148 ,  Y10T83/4804 ,  Y10T83/4847 ,  Y10T83/788 ,  Y10T83/902

摘要： A sheet cutting apparatus is provided for cutting sheets from one or more media supply rolls. A rotary cutter bar cooperates with a stationary bar to sever the media as it is fed between the two bars. The rotary cutter bar is driven by a motor whose output is monitored by a speed control circuit. During a cut cycle, the motor speed may decrease with an increasing load caused, for example, by a thicker weight media being cut. Uncorrected, the motor speed would decrease, causing a deviation in the straightness of the cut. The speed control circuit senses the changes from the normal speed of the motor during the cutting cycle and generates a feedback signal to the motor to raise the speed to the operation level.

摘要翻译： 提供了用于从一个或多个介质供应辊切割片材的片材切割设备。 旋转切割杆与固定杆配合，以在两个杆之间进给时切断介质。 旋转刀杆由电机驱动，其输出由速度控制电路监控。 在切割循环期间，电机速度可能由于例如通过切割较厚重量的介质而引起的负载增加而减小。 未校正时，电机转速会降低，导致切割的平直度偏差。 速度控制电路在切割循环期间感测到电动机的正常速度的变化，并产生到电动机的反馈信号，以将速度提高到操作水平。