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:
Aug. 11, 1998
Filed:
May. 15, 1996
Applicant:
Inventor:
Frederick Yung-Fung Wu, Cos Cob, CT (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345156 ; 345158 ;
Abstract
A hand-held pointing device for positioning a cursor on a display having a plurality of illuminating devices at a periphery thereof, includes a housing, an interference filter coupled to the housing, a device for detecting light having been emitted from the plurality of illuminating devices and filtered by the interference filter, a device, coupled to the detecting device, for distinguishing a region of the periphery of the display from which the light having been detected originates, and a device for translating the detected light into values for positioning the cursor on the display.