The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 06, 1995
Filed:
Mar. 11, 1993
Thomas L Clarke, Oviedo, FL (US);
Other;
Abstract
An improved device for determining the three-dimensional location and orientation of a subject in a virtual reality simulation is a hybrid of an optical localization system and independent tilt and direction sensors. Three or more modulated sources of light or near-infrared radiation are placed at the perimeter of the sensing volume; these sources are typically emitters surrounded by rotating cylindrical grating. A single photosensor extracts enough information from the radiation field to derive position within the volume. Orientation is sensed by small gravitational tilt and magnetic compass direction sensors. Since the sensing is entirely passive, any number of objects can be tracked within the volume as long as at least three of the sources are visible from the position of each object.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile