Pointing apparatus and method

Details Pointing apparatus and method Pointing apparatus and method

2004-09-08

2008-09-23

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

C345S157000, C345S158000, C345S159000, C345S160000

Reexamination Certificate

active

07427979

ABSTRACT:
Provided are a pointing apparatus and method. The apparatus, which inputs a pointing signal to a portable computer, includes an accelerometer outputting an acceleration signal in response to motion of the finger; and a signal processing unit sensing micro-collisions generated when the finger comes into contact with a predetermined contact surface and a rising signal generated when the finger is detached from the contact surface using the acceleration signal, sensing pointing motion of the finger lasting between the generation of the micro-collisions and the generation of the rising signal, and outputting the pointing signal.

REFERENCES:
patent: 5638092 (1997-06-01), Eng et al.
patent: 2003/0142065 (2003-07-01), Pahlavan
patent: 07-271506 (1995-10-01), None

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