公开(公告)号：US3886325A

公开(公告)日：1975-05-27

申请号：US35239373

申请日：1973-04-18

Applicant: IBM

Inventor： DORR RICHARD L ,  GAEBELEIN GEORG N ,  KOSTUCH DONALD J ,  VARNER MALCOLM E

IPC: G06K7/00 ,  B41J5/30 ,  G06F3/00 ,  G06F3/08 ,  G06F15/10 ,  G06K15/00 ,  G06K17/00 ,  G06K19/00 ,  G06F9/04

CPC classification number: G06K19/00 ,  B41J5/30 ,  G06F3/00 ,  G06F3/08 ,  G06F15/10 ,  G06K2017/0087

Abstract: A mark-reading machine, or other record-controlled device, produces an output record from indicia on a data document, in accordance with specifications on a format document read and interpreted by the same machine. The format document is preprinted for ease of use, and may specify a number of attributes of the data document as well as control functions for the machine. Part of the format indicia may appear on another document.

Abstract translation: 标记读取机或其他记录控制装置根据由同一机器读取和解释的格式文件的规格，在数据文档上从标记产生输出记录。 格式文档是预先打印的易于使用，并且可以指定数据文档的许多属性以及机器的控制功能。 格式标记的一部分可能出现在另一个文档上。

公开(公告)号：CA1000403A

公开(公告)日：1976-11-23

申请号：CA170035

申请日：1973-08-24

Applicant: IBM

Inventor： CASH KENNETH W ,  DORR RICHARD L ,  GAEBELEIN GEORG N

公开(公告)号：DE3485009D1

公开(公告)日：1991-10-10

申请号：DE3485009

申请日：1984-11-09

Applicant: IBM

Inventor： BHEND RICHARD B ,  KEILLOR ROBERT D ,  LOVGREN JEFFREY L ,  MERCER JOHN R ,  GAEBELEIN GEORG N

IPC: H04N1/04 ,  H04N1/047 ,  H04N1/12 ,  H04N1/17 ,  H04N1/193 ,  H04N1/36

Abstract: Scanning apparatus for generating data representing images on a document (10) includes a solid state time integrating photodetector array (12) and means for cycling the array to generate data signals representing the images, a document transport system (22, 30) for relatively moving the array and the document (10) to optically present successive images to said array and a synchronisation device (40) for handling the data. The synchronisation device comprises means (24, 26, 28) responsive to movement of the document relative to the array for producing an enabling pulse signal each time the document has moved a predetermined amount with respect to the array, means (103, 105) for producing clock pulse signals to cycle the linear array, and logic means (121, 123, 125) responsive to the enabling pulse signals and the clock pulse signals for gating out for further processing only those data signals generated by the array upon the occurrence of a predetermined relationship between the times of occurrence of one of the enabling pulse signals and one of the clock pulse signals.

公开(公告)号：CA1216929A

公开(公告)日：1987-01-20

申请号：CA464022

申请日：1984-09-26

Applicant: IBM

Inventor： BHEND RICHARD B ,  KEILLOR ROBERT D ,  LOVGREN JEFFREY L ,  MERCER JOHN R ,  GAEBELEIN GEORG N

IPC: H04N1/04 ,  H04N1/047 ,  H04N1/12 ,  H04N1/17 ,  H04N1/193 ,  H04N1/36

Abstract: A variable time integrating period to accomplish distortion free synchronization of the scanning rate to the document transport speed when the transport speed is within a predetermined tolerance with respect to it's nominal speed is disclosed. The data levels provided by the scanner are then multiplied by an appropriate correction factor to compensate for the varied amount of light accumulated by the time integrating photo sensor array because of the varied integration time. When the document speed must be reduced to a value less than the predetermined tolerance, the system of the invention resorts to the technique of selecting only certain scans and discarding the data from other scans. Scan selection is found to be economically accomplished by selecting those scans which were time integrating when an emitter pulse occurred.