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公开(公告)号：US3645392A
公开(公告)日：1972-02-29
申请号：US3645392D
申请日：1970-08-26
Applicant: IBM
Inventor： CHITTENDEN RUDY M , DESKEVICH STEPHEN , PLUMMER NORMAN R , ROHRER GENE D , ZAMAN LOUIS F
Abstract: A magnetic ink character reader/sorter having improved means for processing the character signals, storing the pocket selection control signals derived therefrom, and checking the overall operation of the machine. The documents are read by an improved single-gap recognition system, and the sorting information derived therefrom is supplied to a plurality of buffers in accordance with control signals derived from the motion of a document transport.
Abstract translation: 一种具有改进的用于处理字符信号的装置的磁性墨水字符读取器/分类器，存储从其导出的口袋选择控制信号，以及检查机器的整体操作。 通过改进的单间隙识别系统读取文档，并且根据从文档传送的运动导出的控制信号将从其导出的排序信息提供给多个缓冲器。
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公开(公告)号：US3879707A
公开(公告)日：1975-04-22
申请号：US31693672
申请日：1972-12-20
Applicant: IBM
Inventor： ROHRER GENE D
CPC classification number: G06K9/183
Abstract: An improved character recognition system for bar coded characters particularly of the form designated as ''''CMC7,'''' comprising characters formed with seven vertical bars known as strokes, which are separated by intervals of varying widths, the narrow and wide spacings in the intervals or spaces between the strokes comprising the code for the character. The electrical waveform obtained by scanning the characters with a suitable scanning head is differentiated and the signal and the derivative thereof are used in circuits which measure the inter-stroke intervals. Use of the derivative signal from the scanning or read head enhances reading by using it to locate the edges of the printed strokes.
Abstract translation: 用于条形码字符的改进的字符识别系统，特别是指定为“CMC7”的形式的字符识别系统，包括由称为笔画的七个垂直条形成的字符，其以不同宽度的间隔分开，间隔或间隔之间的窄和宽间距 笔画包括字符的代码。 通过用适当的扫描头扫描字符获得的电波形被区分，并且信号及其导数用于测量行程间间隔的电路中。 使用来自扫描或读取头的导数信号通过使用它来定位打印笔画的边缘来增强阅读。
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公开(公告)号：US3863219A
公开(公告)日：1975-01-28
申请号：US40446273
申请日：1973-10-09
Applicant: IBM
Inventor： ROHRER GENE D
Abstract: Improved operation of character recognition systems for reading magnetized ink characters is obtained by utilizing a Kalman-type prediction filter following the output of the amplifiers used for amplifying the signals obtained by scanning the characters with a magnetic read head.
Abstract translation: 用于读取磁化墨水字符的字符识别系统的改进的操作通过利用用于放大通过用磁性读取头扫描字符获得的信号的放大器的输出之后的卡尔曼型预测滤波器来获得。
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公开(公告)号：CA1162309A
公开(公告)日：1984-02-14
申请号：CA376943
申请日：1981-05-06
Applicant: IBM
Inventor： KU EDWARD H C , ROHRER GENE D
Abstract: CHARACTER RECOGNITION SYSTEM A character recognition system including a timing subsystem, comprising a base oscillator or clock, and timing circuits driven by the base clock to provide a plurality of timing pulses for timing the operation of the entire system. The timing circuits are governed in part by delay circuits which are in turn controlled by the amplitude and location of peak signals derived from scanning earlier pulses. EN978027
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公开(公告)号：CA1155552A
公开(公告)日：1983-10-18
申请号：CA363941
申请日：1980-11-04
Applicant: IBM
Inventor： GALATHA MATTHEW J , ROHRER GENE D , SQUIRES JOHN J
IPC: G06K7/01 , G06K9/20 , G06K13/063 , G06K7/08 , G06K13/00
Abstract: UNIT RECORD READER A power driven belt provides back-up pressure for a check or similar document bearing magnetic information as the document moves past a reading transducer. The belt is resiliently urged against cylindrical bearing surfaces adjacent the transducer to provide a noncritical geometry.
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Patent Agency Ranking
公开(公告)号：CA1005915A
公开(公告)日：1977-02-22
申请号：CA185472
申请日：1973-11-09
Applicant: IBM
Inventor： ROHRER GENE D
IPC: G06K7/00 , G06V30/224
Abstract: An improved character recognition system for bar coded characters particularly of the form designated as "CMC7," comprising characters formed with seven vertical bars known as strokes, which are separated by intervals of varying widths, the narrow and wide spacings in the intervals or spaces between the strokes comprising the code for the character. The electrical waveform obtained by scanning the characters with a suitable scanning head is differentiated and the signal and the derivative thereof are used in circuits which measure the inter-stroke intervals. Use of the derivative signal from the scanning or read head enhances reading by using it to locate the edges of the printed strokes.
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公开(公告)号：CA2131672A1
公开(公告)日：1995-06-30
申请号：CA2131672
申请日：1994-09-08
Applicant: IBM
Inventor： PRAKASH RAVINDER , ROHRER GENE D
Abstract: An optical scanning station is disclosed which utilizes light bending apparatus such as mirrors or optical wedges to gather and redirect some of the illumination radiating from the object. The gathering of the light occurs off-axis from the lens and the redirection of the light to the lens causes an off-axis angle between the light beam and the lens axis, thereby resulting in multiple images which are spaced apart from each other when focused on an image plane. The multiple images may be split apart and directed to separate image planes by use of front surface mirrors making the images then available for individual capture by charge couple devices or other similar image capture apparatus. Alternatively, the outboard images may be redirected, again by mirrors, to be focused coincident to the on-axis image, thereby increasing the illumination level at the image plane well in excess of that obtainable with only a single image of the object being focused at the image plane. The primary advantage of these devices is either to permit separate images to be presented on separate image planes without the subtractive losses occasioned by use of subtractive beam splitters or to combine the multiple images to raise the illumination level of a single image at the image plane, thereby permitting the use of slower lenses or reduced illumination level at the object.
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公开(公告)号：CA1204672A
公开(公告)日：1986-05-20
申请号：CA440659
申请日：1983-11-08
Applicant: IBM
Inventor： ROHRER GENE D
Abstract: A system is provided which separates line image data from a complex background by analyzing both contrast and shape characteristics of the image data. The system inherently provides image rotations and compression. Image quality monitoring is also provided.
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公开(公告)号：CA946074A
公开(公告)日：1974-04-23
申请号：CA119486
申请日：1971-07-30
Applicant: IBM
Inventor： CHITTENDEN RUDY M , DESKEVICH STEPHEN , ROHRER GENE D , ZAMAN LOUIS F III , PLUMMER NORMAN R
Abstract: A magnetic ink character reader/sorter having improved means for processing the character signals, storing the pocket selection control signals derived therefrom, and checking the overall operation of the machine. The documents are read by an improved single-gap recognition system, and the sorting information derived therefrom is supplied to a plurality of buffers in accordance with control signals derived from the motion of a document transport.
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公开(公告)号：CA1314982C
公开(公告)日：1993-03-23
申请号：CA601791
申请日：1989-06-05
Applicant: IBM
Inventor： DINAN RAYMOND F , DUBIL JAMES F , MALIN JERALD R , RODITE ROBERT R , ROHE CLAIR F , ROHRER GENE D
Abstract: DOCUMENT IMAGE PROCESSING SYSTEM Documents, such as bank checks, are processed at a high rate of speed on an image processing system which optically scans the documents and converts optically perceptible data on the documents into video image data. The video image data from the scanner is compressed by data compression techniques and the compressed data is sent over a high speed data channel to a high speed mass storage device which receives and temporarily stores the data. A lower speed mass data storage device, such as an optical disk, is connected for receiving at a lower data transfer rate the compressed video image data and for storing the video image data for subsequent retrieval. The system also includes real-time quality control systems for monitoring the quality of the image data to detect the existence of unacceptable image quality data and for generating a signal which can be used for immediately stopping the generation of unacceptable quality image data. CT9-86-009
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