Matsushita Electric Industrial Co., Ltd.

Sarnoff Corporation

Panasonic Technologies, Inc.

Jeffrey Esakov

Daniel P Lopresti

Jiangying Zhou

Dina Kravets

Suz Hsi Wan

Liviu Chiriac

A tool to be used with a search engine for a information management system includes methods for refining, filtering, and organizing search queries and search results. A query tuner in the tool allows a user to automatically reformulate a query in order to find a reasonable number of matching documents from the search engine by selectively modifying individual search terms to be weaker or stronger and concurrently requesting a plurality of searches, each with a respectively different modified query. The tool also uses a dynamic filter which employs a dynamic set of record tokens to restrict the results of an arbitrary search query to selectively include or exclude records which correspond to the set of record tokens. The tool also includes a results organizer which aids the user in understanding and visualizing a large number of matching documents returned in response to a search query by clustering like items returned from the search. The query tuner, dynamic filter and results organizer may be used individually or in conjunction. The searched information management system may be consolidated or distributed and may span a global information network such as the Internet.

Search data processor

Inventive two-dimensional barcodes, each having encoded digital information in a bitmap representing preferably randomized encoded data bits, are printed onto a printed medium. The bitmap may further include a plurality of block identifiers, spaced a predetermined number of encoded data bits apart, which are used to make corrections for missing or added data bits when the barcode is decoded. Upon decoding a barcode printed on the printed media, the digital information is scanned and the number of horizontal and vertical edges in each respective column and row of the barcode are determined. An edge is determined by selecting a pixel and determining if the two pixels adjacent to the selected pixel are of different colors. After all of the edges are counted, selected groups of columns and rows are analyzed to determine local minimas in the number of counted horizontal and vertical edges in each selected group which provide the column and row center line for each selected group. Thereafter, the binary data located at the intersection of each column and row center line are read out to produce a signal representative of the encoded digital information in the printed barcode.

Clock free two-dimensional barcode and method for printing and reading

An inventive page encoding, printing, retrieval and archiving system and method wherein document information designators are encoded for pages. The designator includes information regarding the location of the digital representation of the page and optionally includes page generation and reproduction information. An enhanced copier or facsimile machine scans the printed designator and retrieves the stored digital representation of the page and outputs a 'subsequent original' of the page. In the alternative, when the copier cannot directly access the digital representation of the page, the enhanced copier can decode the page generation and reproduction information found in the designator and apply the information to production of a high quality photocopy. The inventive equipment is additionally adapted to create digital representations of pages, create designators for the digital representations, store the digital representations along with the designators, and output printed versions of the pages including the designators.

System and method for archiving digital versions of documents and for

Growing community of inventors

Hamilton Square, NJ, United States of America

Jeffrey Esakov