Information processor
Patent 5850058 Issued on December 15, 1998. Estimated Expiration Date: 
November 12, 2016. 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.
November 12, 2016. 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 ReferencesPortable image input device Optical stylus and passive digitizing tablet data input system Writing device for storing handwriting Method for formatting compressed video data into transport cells Optical position detecting unit, optical coordinate input unit and optical position detecting method employing a pattern having a sequence of 1's and 0's Patent #: 5502568 InventorsAssigneeApplicationNo. 747963 filed on 11/12/1996US Classes:178/18.01, Position coordinate determination for writing (e.g., writing digitizer pad, stylus, or circuitry)345/179, Stylus345/183, Light pen for controlling plural light-emitting display elements (e.g., LED, lamps)382/188, Writing on ordinary surface (i.e., electronics are in pen)382/313Hand-heldExaminersPrimary: Kuntz, CurtisAssistant: Skankar, Vijay Attorney, Agent or FirmForeign Patent References
International ClassesG08C 021/00G09G 003/02 Foreign Application Priority Data1995-11-17 JPAbstractIt is an object to provide a computer system including a practical input device which can be operated with more natural sense. The present input pen which is used in combination with a tablet includes: a speech recognition unit for analyzing a speech sound, which is fetched in through a microphone, as a command or the like; an image reconfiguring unit for composing, after correcting image distortion generated due to inclination of the pen body for each image in the vicinity of a pen head which is photographed along with the strokes of the input pen by a CCD camera, the series of images into a general image; and a reference line generating circuit for lasing a laser beam with which a projected image utilized to calculate an angle of inclination is formed onto a face of an object of photographing. In addition, since an oscillation circuit generates a magnetic field corresponding to the data forming the general image on the basis of control by an a.c. magnetic field control circuit, the data can be transferred to the information processor side through the tablet. Further, a CPU executes the processing corresponding to the result of analyzing a sound.Other References
Field of SearchStylusLight pen for CRT display CRT having tracking capability Light pen for fluid matrix display panel Light pen for controlling plural light-emitting display elements (e.g., LED, lamps) Sensing geometrical properties Writing on ordinary surface (i.e., electronics are in pen) Hand-held Sensing mechanism in stylus | |
