Data processing system comprising a graphic tablet and a stylus,

Details Data processing system comprising a graphic tablet and a stylus, Data processing system comprising a graphic tablet and a stylus,

1995-12-06

1998-05-12

Saras, Steven

Telegraphy

Systems

Position coordinate determination for writing

178 19, 345179, 345180, G08C 2100, G09G 302

Patent

active

057509395

ABSTRACT:
In a data processing system including a graphic tablet and a wireless stylus cooperating with the tablet, the stylus transmits an electromagnetic field to be received by the tablet. The stylus has a detector whereby a disturbance of the field, caused by a means external of the stylus, can be detected. The stylus also includes a switch whereby the stylus can be switched to a power-saying standby mode in response to the disturbance. A contactless on/off switch is thus realized for the stylus.

REFERENCES:
patent: 4672154 (1987-06-01), Rodgers et al.
patent: 5225637 (1993-07-01), Rodgers et al.
patent: 5231381 (1993-07-01), Duwaer
patent: 5276282 (1994-01-01), Russell
patent: 5345197 (1994-09-01), Riggio, Jr.
patent: 5461204 (1995-10-01), Makinwa et al.
patent: 5483262 (1996-01-01), Izutani
patent: 5510813 (1996-04-01), Makinwa et al.

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