| 摘要 |
<p>For recording the data segments, the documents are placed separately on a conveyor belt which conveys them successively through a first and a second stations, where they are reproduced by means of a microfilming camera and a video camera, respectively, before they reach a third station, on a cylinder (16) reversibly driven by a stepping motor (22). The selected data segments (21), which may vary in height and width, are recording in a selected sequence and with a corresponding field of view (23) by a video camera (15) linearly displaceable (24) on a toothed bar (17) by means of an induction linear motor (25). To this effect, the stepping motor (22) and the induction linear motor (25) are controlled by a control unit (27) so that the desired data segment (21) is located in the field of view (23) of the camera (15). With such a data recording, the handling of the documents is significantly simplified and the safeguard of the secret by the restitution at different stations of the data segments reproduced is easily achieved. </p> |
