Electromagnetic induction system with single-induction-loop...

Details Electromagnetic induction system with single-induction-loop... Electromagnetic induction system with single-induction-loop...

2005-04-19

2005-04-19

Chow, Dennis-Doon (Department: 2675)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C345S179000, C178S018070

Reexamination Certificate

active

06882339

ABSTRACT:
A plurality of single-induction-loops are inserted in an electromagnetic induction system in which multi-induction-loop is deployed. Deployment of a multi-induction-loop layout is constituted by induction loops with sawtooth-shaped areas and close-like areas formed byimg id="CUSTOM-CHARACTER-00001" he="3.13mm" wi="2.46mm" file="US06882339-20050419-P00900.TIF" alt="custom character" img-content="character" img-format="tif" ?-type sections of same and opposite phases for reducing the number of switch in use, completely deploying induction loops of X axis and Y axis on a same common contact, effectively reducing area demand of electromagnetic induction system, and thus increasing effective area of panel board in use. Moreover, in order to further enhance ability of interference immunity of electromagnetic induction system, a plurality of single-induction-loops are inserted around multi-induction-loop for isolating interference of noise to multi-induction-loop and thus relatively increasing linearity and efficiency of electromagnetic induction system.

REFERENCES:
patent: 5635684 (1997-06-01), Fukuzaki
patent: 5792997 (1998-08-01), Fukuzaki
patent: 6005555 (1999-12-01), Katsurahira et al.
patent: 6636184 (2003-10-01), Yeh

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