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    • 71. 发明授权
    • Method of tracking web segments for post-production operations
    • 跟踪网页片段进行后期制作操作的方法
    • US5538171A
    • 1996-07-23
    • US296127
    • 1994-08-25
    • H. W. Crowley
    • H. W. Crowley
    • B41F17/02B65H20/00B65H37/00B65H39/02B65H9/00B65H23/04
    • B41F17/02B65H20/00B65H37/00B65H39/02B65H2557/33B65H2557/62
    • A system and method for incorporating, in the production of a continuous stream of images, by an image transfer device upon a moving web, post-production operations upon the web at various locations. Locations of a web, having a plurality of images placed thereon, output from an image transfer device are tracked. Specific operations at various locations upon the web are performed by a post-production device as the web passes through it. The web is directed from the image transfer device to the post-production device. In response to the tracking of locations upon the web, the point when a location has entered the post-production device is determined. In response to this determination, the post-production device is commanded to perform its specific operation at a connect location.
    • 一种系统和方法,用于在图像传送装置的生产中连续流动的图像,在移动的网络上并入在各个位置的纸幅上的后期制作操作。 跟踪从图像传送装置输出的具有放置在其上的多个图像的网的位置。 在网络上的各个位置上的特定操作由网络通过它的后期制作设备执行。 网络从图像传送装置被引导到后期制作装置。 响应于对网络上的位置的跟踪,确定位置进入后期制作设备的时间点。 响应于该确定,命令后期制作装置在连接位置执行其特定操作。
    • 72. 发明授权
    • Servo system
    • US5513817A
    • 1996-05-07
    • US360209
    • 1994-12-20
    • Alfred M. NelsonRobert P. Adams
    • Alfred M. NelsonRobert P. Adams
    • G11B5/86G11B15/00G11B15/43G11B15/60B65H20/00B65H23/18B65H23/24
    • G11B5/865G11B15/00G11B15/43G11B15/607
    • A master tape movable in a closed loop including a pinch roller transfers a mirror image to a slave tape movable in a closed loop including a capstan. A thermomagnetic layer on the slave tape has a Curie temperature above which magnetic information is destroyed and below which magnetic information can be recorded on such layer. The thermomagnetic layer is heated above the Curie temperature, thereby becoming lengthened by thermal expansion just before the slave tape reaches the capstan. A downstream portion of a peripheral surface, preferably defining a cylindrical segment, on a first guide receives a pressurized fluid for sensing the tape tension in accordance with the tape width, distance from the cylinder axis and fluid pressure. An upstream portion of the guide peripheral surface receives a vacuum adjustable to regulate tape tension in response to variations in the pressurized fluid pressure. In regulating the tape tension, the spacing between the slave tape and the peripheral surface at the downstream portion is controlled. The master tape is lengthened by a second guide having the same construction as the first guide to compensate for the slave tape lengthening by the heater and the first guide, thereby producing a mirror image on the slave tape after the slave tape has cooled to the ambient temperature. Each of the master and slave tapes has a particular product of the Youngs modulus, tape width and tape thickness to provide a controlled strain on such tape when the tension on such tape is regulated.