公开(公告)号：US3647955A

公开(公告)日：1972-03-07

申请号：US3647955D

申请日：1970-05-04

Applicant: COMFAX COMMUNICATIONS IND INC

Inventor： READER MALCOLM ,  TREGAY JOHN L ,  STERN CHARLES

IPC: H04N1/10 ,  H04N1/12 ,  H04N3/08

CPC classification number: H04N1/1052 ,  H04N1/1013 ,  H04N1/12 ,  H04N1/127 ,  H04N2201/0404 ,  H04N2201/041

Abstract: An image transmission system is disclosed in which the image is obtained from a reduced size medium such as microfilm. A scanning beam is incident upon a first reflector which causes the beam to be redirected onto a second reflector fixedly spaced therefrom. The second reflector in turn redirects the scanning beam onto the film. By moving the two reflectors with respect to the source of the scanning beam by a relatively large distance, the scanning beam is moved by a much smaller distance over the plane of the film, to permit scanning over a new line on the film.

Abstract translation: 公开了一种图像传输系统，其中图像从诸如缩微胶片的缩小尺寸的介质获得。 扫描光束入射到第一反射器上，其使得光束被重定向到与其固定间隔开的第二反射器。 第二反射器又将扫描光束重定向到膜上。 通过相对于扫描光束的源移动两个反射器相对较大的距离，扫描光束在胶片的平面上移动小得多的距离，以允许在胶片上的新线上进行扫描。

公开(公告)号：US3646256A

公开(公告)日：1972-02-29

申请号：US3646256D

申请日：1970-03-24

Applicant: COMFAX COMMUNICATIONS IND INC

Inventor： JACOB GERALD W ,  MOGUL EUGENE ,  BOROS PAUL Z ,  SCHIFF DAVID ,  READER MALCOLM ,  KAMEN IRA

IPC: H04N1/17 ,  H04N3/32

CPC classification number: H04N1/17

Abstract: A facsimile transmitter comprises means for scanning a document to produce signals corresponding to the dark and light areas of the document. Those signals are transferred to the receiver at one of two predetermined rates-fast or slow-depending on the content of the document. If desired, the rate of scanning may also be varied according to that content. Signals having a low information value are thereby transmitted at a higher rate than signals having a high information content.

Abstract translation: 传真发射机包括用于扫描文件以产生对应于文件的暗部和浅色区域的信号的装置。 取决于文件的内容，这些信号以两个预定速率之一 - 快速或慢速地传送到接收器。 如果需要，扫描速率也可以根据该内容而变化。 因此，以比具有高信息量的信号更高的速率发送具有低信息值的信号。