US Patent No: 5,111,398

Number of patents in Portfolio can not be more than 2000

Processing natural language text using autonomous punctuational structure

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Abstract

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A technique for processing natural language text uses a data structure that includes structure data in the text data. The structure data indicates an autonomous punctuational structure of the text, a punctuational structure that is independent of the lexical content of the text and therefore can be manipulated without considering the meaning of the words in the text. The data structure can be a tree in which each node has a textual type such as a paragraph, sentence, clause, phrase, or word. The data structure could alternatively be parallel data sequences, one with codes indicating the text's characters and the other with codes indicating textual types. The data structure is produced and maintained using a grammar of textual types, indicating for each textual type the textual types of units into which it can properly be divided. During editing, a text sequence is generated by applying rendering rules to the data structure, and the text is presented to the user based on the text sequence. Prior to generating the text sequence, information relating to punctuational features is propagated through the data structure. User signals requesting editing operations are applied to modify the data structure using operations rules, and the user's pointing or selecting signals are mapped onto the data structure. The modified data structure is checked with the grammar of textual types to ensure that it has an autonomous punctuational structure. A modified text sequence is then generated, and a modified text is displayed based on it.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
XEROX CORPORATIONSTAMFORD, CT18360

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Abbott, Curtis Menlo Park, CA 10 488
Nunberg, Geoffrey D San Francisco, CA 9 159
Smith, Brian C Fort Worth, TX 34 364
Stansbury, H Tayloe Mountain View, CA 1 99

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