1
Edward Francis Scanlon: OCR error correction methods and apparatus utilizing contextual comparison. Scan Optics, Alix Yale & Ristas, December 15, 1998: US05850480 (136 worldwide citation)

The present invention includes methods of correcting optical character recognition errors occurring during recognition of alphanumeric character strings contained within one or more predetermined types of alphanumeric character fields. The methods may be practiced with a document processing system h ...


2
David H Stone, Leon A Pintsov, Donald P D Amato: Alphanumeric handprint recognition. Scan Optics, December 9, 1986: US04628532 (92 worldwide citation)

The recognition of patterns is accomplished through boundary tracing and subsequent storage of encoded range testable data commensurate with the occurrence, interrelationship and orientation of geometric features on the pattern boundaries. The encoded data is compared with generalized prototypes whi ...


3
George E Forsen, Stephen F Jackson: Multi-font optical character recognition apparatus. Scan Optics, Brumbaugh Graves Donohue & Raymond, June 27, 1978: US04097847 (72 worldwide citation)

As described herein, a program controlled image dissector tube scans the printed information recorded on a storage medium in a first raster to provide analog information signals representative of segments of the recorded information and in a second raster to provide analog information signals repres ...


4
Stoller Milton: Optical character recognition system. Scan Optics, March 27, 1973: US3723970 (66 worldwide citation)

As described herein, a program controlled image dissector tube scans the printed information recorded on a storage medium to provide analog information signals. The analog signals are converted into digital data signals representative of the segmental brightness of the scanned storage medium and the ...


5
Daniel E Woods, Ronald E Gocht, Peter M Higgins, Anne M Edwards, Hugh Rowlands, Edward F Scanlon, Jerry Putzer: Sales transaction record processing system and method. Scan Optics, Chilton Alix & Van Kirk, March 14, 1989: US04813077 (54 worldwide citation)

The processing of documents evidencing business transactions is enhanced by optically scanning and imaging only specific areas of interest, amount fields for example, and simultaneously storing the imaged amount fields in two separate files. Subsequently, only those images which correspond to a doll ...


6
Daniel M Buck: Digital image enhancement methods and apparatus. Scan Optics, Chilton Alix & Van Kirk, March 28, 1989: US04817179 (34 worldwide citation)

Digital matrices, for example digitized images, are enhanced by comparing a matrix to be enhanced with plural enhancement patterns for each position in the matrix of each element of the matrix to produce pattern codes commensurate with the matches with the enhancement patterns. The pattern codes are ...


7
Earl H Brazeal Jr, James D Callahan, James M Soussounis, David H Stone: Method and apparatus for plural document detection. Scan Optics, Alix Yale & Ristas, April 3, 2001: US06212130 (21 worldwide citation)

The presence of overlapped sheets on a paper transport is detected by employing such sheets as an acoustic interference filter. A beam of ultrasonic energy of appropriate frequency, angularly oriented to the planar transport path, will be attenuated to a much greater extent than the attenuation calc ...


8
William C Daley, Andrew Hall, Arthur M Sikes: Document transport. Scan Optics, Brumbaugh Graves Donohue & Raymond, October 16, 1979: US04171129 (18 worldwide citation)

A document transport for a document scanning device has an elevator for locating a stack of documents to be fed automatically into position to be scanned. The top document is removed from the stack by a feed roller. Other documents which may become entrained with the top document are returned to the ...


9
Michael Thaler, Ronald Gocht: Line memory. Scan Optics, Brumbaugh Graves Donohue & Raymond, October 10, 1978: US04120049 (13 worldwide citation)

In a character recognition system lines of data are stored in a line memory via a series of multiplexers. The data can originate in a controller for the system, a character reading station or other sub-systems, and is supplied to the line memory over a controller bus, a transport bus and a line memo ...


10
Alfred L Basso, David A Newton: Address block location method and apparatus. Scan Optics, Chilton Alix & Van Kirk, January 31, 1995: US05386482 (12 worldwide citation)

A block of printed information, for example an address, is located on a moving page and data commensurate with the block only is transferred to downstream processing apparatus such as an optical character reader. The location of the block of information is accomplished by generating a real time bina ...