(19) United States
(12) Patent Application Publication (io) Pub. No.: US 2004/0239626 Al
Noguera (43) Pub. Date: Dec. 2,2004
(54) TILT-BASED POINTING FOR HAND-HELD DEVICES
(76) Inventor: Gritsko Perez Noguera, San Marcos, CA (US)
Attn.: Elsa Keller, Legal Administrator
Intellectual Property Department
170 Wood Avenue South
Iselin, NJ 08830 (US)
(21) Appl. No.: 10/887,613
(22) Filed: Jul. 8, 2004
Related U.S. Application Data
(63) Continuation of application No. 09/929,224, filed on Aug. 13, 2001.
(51) Int. CI.7 G09G 5/08
(52) U.S. CI 345/158
Systems and methods of pointing in hand-held devices are described. In accordance with this scheme, a user may control the position where a pointer is displayed on a display screen simply by changing the orientation of the hand-held device relative to a currently preferred device orientation, which is tracked automatically. In addition, unintentional device orientation changes, such as periodic device orientation changes that might be caused by carrying the handheld device while walking or driving, are filtered out dynamically. In this way, the pointer may be positioned accurately and reliably at any one of a plurality of pointer screen locations based upon changes in device orientation under a wide variety of different usage conditions.