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:
Nov. 12, 1996
Filed:
Jan. 07, 1994
Donald S Odell, Burlington, VT (US);
Selectech, Ltd., Williston, VT (US);
Abstract
A system for determining the pointing orientation of a remote unit relative to a base unit. The fixed base unit comprises at least one light source for emitting at least one light beam, and a polarizer for polarizing light emitted by said light source in at least one particular predetermined orientation. The movable remote unit comprises a photodetector for detecting light emitted by said light source means of the fixed base unit and determining components of pitch, yaw and roll of the remote unit relative to the base unit. The remote unit transmits signals related to the pitch, yaw and roll to the base unit. Either the base unit or the remote unit may compute corrected pitch and yaw of the remote unit on the basis of the roll of the remote unit. The roll information may be used alone to rotate an icon in a graphical user interface on a television or computer screen.