Pitney Bowes Inc.

Dest Corporation

Bruce S Denning

Robert A Couper

Martin N Nelson

Cary H Masatsugu

Low cost, high-speed, optical character isolation and page reconstruction system, method and apparatus are presented which overcome problems caused by copied pages, noise, underlines, skewed and bowed text, forms features, logos and signatures. As characters or noise are isolated and recognized, their corresponding bit patterns in memory are deleted. Recognized characters are isolated within entire words at a time to form page image records which are then linked to form lines of words. The text on the original page is then reconstructed from lines of words to yield output signals suitable for input to a host word processor.

Optical character isolation system, apparatus and method

A character recognition system is disclosed utilizing a dead-band correlator for providing recognition of printed typestyles having horizontal and vertical stroke width variations without impairing the resolution required for character feature analysis. The system provides fewer character-to-mask registration errors, simultaneous computation of correlation scores of registration positions of masks with respect to the unknown character to compensate for additional registration errors, improved reject and substitution rates by utilizing unique threshold and separation requirements for masks, lower error rates by using small and large noise filtering and combining dual level acceptance criteria used in conjunction with re-try methods, stroke width normalization to aid in recognition of characters with badly degraded stroke widths, and selection of specific mask sets during multiple typestyle recognition processing than has previously been possible.

Method and apparatus for character recognition employing a dead-band

A control system is provided in a word processing apparatus to enable both foreground and background processing. A controlled circuit for controlling the operation of a storage means, a data processing means for performing data processing operations, and a second controlled circuit means coupled to a keyboard for controlling the transfer of information to and from the keyboard are each operatively connected to a data bus. The data bus enables communications among the units. The keyboard is provided with indicator means adapted to be actuated by a signal generated in the data processing means to indicate a predetermined condition in the data processing means. The keyboard may further be provided with a switch actuable to be in a first condition such that the keyboard is conditioned for data entry for a background processing mode and a second condition such that the keyboard is conditioned for data entry in a foreground mode of operation.

Circuit to enable foreground and background processing in a word

A word processing system is provided which includes a processing apparatus for processing textual information and for controlling a plurality of controlled units. The processing apparatus further includes a memory apparatus for storing such textual information. The system also includes a first controlled unit comprising a data entry device for entering textual and command information into the processing apparatus and a second controlled unit responsive to the processing apparatus for printing the textual information. The processing apparatus is responsive to the command information to perform editing operations, including insertion and deletion of characters on the textual information, to store in the memory apparatus the edited textual information and information defining the inserted and deleted characters and to select and print either the edited information, the information as originally stored in the memory apparatus or the edited information with the deletions restored. In a preferred embodiment, the edited information with the deletions restored may be printed with additional characters to set off the insertions and deletions so that the inserted and deleted characters may be readily identified by inspection.

Growing community of inventors

San Jose, CA, United States of America

Bruce S Denning