Stylus or pen with tactile response to user

Details Stylus or pen with tactile response to user Stylus or pen with tactile response to user

1983-12-22

1987-05-19

Caldwell, Sr., John W.

Communications: electrical

Tactual indication

With input means

340708, 178 18, G08B 2100, G09G 302

Patent

active

046671820

ABSTRACT:
A stylus for interactive use with a graphics input tablet provides a user with a tactile response whenever the stylus tip (5) passes through the in-presence boundary of the tablet. The boundary defines the limit of the distance of the stylus above the tablet surface beyond which stylus position signals are regarded as unreliable. The tactile response is produced by a movable mass (2) within the body (1) of the stylus which is propelled by an internal mechanism (9, 10) into a lower end stop (11) as the tip passes through the in-presence boundary towards the tablet, and into an upper end stop (3) as the stylus passes through the boundary away from the tablet. The tactile response experience by a user in each case is different. In an alternative arrangement, the stylus tip (5) is attached to the moving mass (2) and arranged normally to be held retracted within the stylus body (1) but to automatically protrude from the body as the end of the stylus passes through the in-presence boundary.

REFERENCES:
patent: 4034155 (1977-07-01), Muller et al.
patent: 4104603 (1978-08-01), Wheeler et al.
patent: 4268730 (1981-05-01), Higgins et al.
"Key with Electrical Tactile Feedback" by Berstis, vol. 24, No. 10, Mar. 1982 IBM Tech. Disclosure Bulletin.

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