Screen control system

Details Screen control system Screen control system

2011-05-10

2011-05-10

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

C345S179000

Reexamination Certificate

active

07940246

ABSTRACT:
The invention discloses a screen control system including a panel, a magnetic member, at least three magnetic inductive (MI) sensors, and a processing unit. The magnetic member is used for indicating a specific position on the panel. Each of the MI sensors is located under the panel and used for sensing magnetic field of the magnetic member corresponding to the specific position. Afterward, each MI sensor will convert the sensed magnetic field into an output voltage correspondingly. The processing unit is coupled to each of the MI sensors and the panel. According to all of the output voltages, the processing unit will calculate a coordinate corresponding to the specific position. Accordingly, the screen control system is capable of displaying the specific position indicated by the magnetic member for the user.

REFERENCES:
patent: 6982699 (2006-01-01), Lenssen et al.
patent: 2005/0083316 (2005-04-01), Brian et al.
patent: 1047451 (1994-11-01), None
patent: 1236629 (2003-05-01), None

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