Data input system for enabling data input by writing without using tablet or the like
April 6, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesImage drawing apparatus for displaying input image on display means Electronic stylus type optical reader Silent training by error correction for on-line handwritting recognition systems User specification of pull down menu alignment Method and apparatus for wireless remote information retrieval and pen-based data entry Methods and system of controlling menus with radial and linear portions Display and control of menus with radial and linear portions Text input device and method Device and method for optical scanning of text Handheld scanner and accompanying remote access agent Patent #: 6081629 InventorApplicationNo. 287184 filed on 04/06/1999US Classes:382/313, Hand-held345/179, Stylus358/473, Hand-held reader358/478, Stylus type382/120, Sensing pressure together with speed or acceleration382/121, Sensing pressure only382/122, Sensing speed or acceleration only382/181, PATTERN RECOGNITION382/187, On-line recognition of handwritten characters382/188, Writing on ordinary surface (i.e., electronics are in pen)382/202, Linear stroke analysis (e.g., limited to straight lines)382/309, EDITING, ERROR CHECKING, OR CORRECTION (E.G., POSTRECOGNITION PROCESSING)382/312IMAGE SENSINGExaminersPrimary: Boudreau, Leo H.Assistant: Mariam, Daniel G. Attorney, Agent or FirmInternational ClassesG06K 009/00G06K 009/03 G06K 009/22 G09G 005/00 H04N 001/024 Foreign Application Priority Data1998-05-19 JPAbstractA data input system is provided with an input pen. A sequence of characters are traced with the input pen, and image data on them are read from the image scanner incorporated in the input pen. Each character is recognized on the basis of the image data. If a recognition error occurs during the input processing, a correct character is written with the input pen. A locus of movement is traced on the basis of moving distance data, which is obtained by a moving distance sensor and includes a moving distance and a moving direction. A character represented by the traced locus is recognized.Field of SearchPATTERN RECOGNITIONIdeographic characters (e.g., Japanese or Chinese) Unconstrained handwriting (e.g., cursive) On-line recognition of handwritten characters EDITING, ERROR CHECKING, OR CORRECTION (E.G., POSTRECOGNITION PROCESSING) Hand-held Sensing mechanism in stylus Reading maps, graphs, drawings, or schematics Sensing pressure together with speed or acceleration Sensing pressure only Sensing speed or acceleration only Writing on ordinary surface (i.e., electronics are in pen) Feature extraction Extracted from alphanumeric characters Linear stroke analysis (e.g., limited to straight lines) IMAGE SENSING Sensing mechanism in platen Touch panel Stylus Hand-held reader Scanning Stylus type | |
