Method and apparatus for a touch sensitive system employing...

Details Method and apparatus for a touch sensitive system employing... Method and apparatus for a touch sensitive system employing...

2006-08-01

2006-08-01

Tran, Henry N. (Department: 2674)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C345S179000, C178S018010, C178S018070, C178S019010, C178S019030, C178S020010

Reexamination Certificate

active

07084860

ABSTRACT:
A touch sensing apparatus for receiving input from one or more touch stimulating devices employs a direct sequence spread spectrum (DSSS) signaling arrangement to transmit signals from the touch stimulating devices for identification and location determination. Active devices are powered by an EM field and generate a touch stimulating signal that is spread spectrum encoded for identification, and signal pickups in a propagation layer receive the touch stimulation signals which are identified by the DSSS encoding and located using received signal strength (RSS) techniques. Semi-active devices are powered by an EM field and receive code instructions to generate specific spread spectrum signals and generate a touch-stimulating signal. Touch stimulating devices are either tethered or tether-free, and powered by batteries or EM fields.

REFERENCES:
patent: 4213005 (1980-07-01), Cameron
patent: 4786765 (1988-11-01), Yamanami et al.
patent: 4902858 (1990-02-01), Yamanami et al.
patent: 5138118 (1992-08-01), Russell
patent: 5231381 (1993-07-01), Duwaer
patent: 5341155 (1994-08-01), Elrod et al.
patent: 5729251 (1998-03-01), Nakashima
patent: 5784060 (1998-07-01), Bertram et al.
patent: 5792997 (1998-08-01), Fukuzaki
patent: 5793361 (1998-08-01), Kahn et al.
patent: 5963199 (1999-10-01), Kato et al.
patent: 6002387 (1999-12-01), Ronkka et al.
patent: 6005555 (1999-12-01), Katsurahira et al.

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