Battelle Memorial Institute

USA As Represented by Secretary of the Navy

David B Lantrip

James J Thomas

Kelly A Pennock

Anne Schur

James A Wise

Marc C Pottier

Jeremy Charles York

A method for spatializing text content for enhanced visual browsing and analysis. The invention is applied to large text document corpora such as digital libraries, regulations and procedures, archived reports, and the like. The text content from these sources may be transformed to a spatial representation that preserves informational characteristics from the documents. The three-dimensional representation may then be visually browsed and analyzed in ways that avoid language processing and that reduce the analysts' effort.

Three-dimensional display of document set

A method for spatializing text content for enhanced visual browsing and analysis. The invention is applied to large text document corpora such as digital libraries, regulations and procedures, archived reports, and the like. The text content from these sources may e transformed to a spatial representation that preserves informational characteristics from the documents. The three-dimensional representation may then be visually browsed and analyzed in ways that avoid language processing and that reduce the analysts' effort.

A variable feel side stick controller for producing and regulating feedback orces on a side stick for optimum pilot response. The controller consists of the floating table assembly which transfers the three-dimensional motion of the side stick into a two-dimensional motion. A series of hydraulic cylinders mounted on the floating table which are connected to a series of hydraulic circuits regulate the feedback forces produced on the side stick. The instantaneous position of the side stick can be determined from a series of linear potentiometers coupled to the hydraulic cylinders or from a series of force transducers connected to the hydraulic circuits. The two-dimensional floating table assembly allows use of a cam and cam follower arrangement which allows the force field to be varied with the shape of the cam.

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Oxnard, CA, United States of America

David B Lantrip