Typewriting machines – Key-board or key lever-actuating mechanism – Including means generating a signal for type selecting or...
Patent
1997-09-23
1999-03-30
Burr, Edgar
Typewriting machines
Key-board or key lever-actuating mechanism
Including means generating a signal for type selecting or...
4004913, 341 22, 341 33, 345168, B41J 508
Patent
active
058879951
ABSTRACT:
A computer system includes a touchpad with one or more overlays providing the computer system with various input control functions. The overlay preferably includes tactile response elements to provide tactile feedback to the operator as an indication that a portion of the overlay has been pressed. The touchpad includes a capacitive sensor. Electronics coupled to the touchpad determine which portion of the touchpad sensor surface area has been touched or pressed. The amount of tactile feedback to the computer operator can be varied through the design and construction of the overlay and the overlay may be provided with no tactile feedback, if desired. As such, numerous overlays can be placed on the touchpad of the computer system, thereby providing the computer system with multiple different input control functions. The computer operator may manually input the type of overlay being used into the computer. Alternatively, a portion of the touchpad surface area maybe dedicated to encoding overlay identification information using any one of a variety of techniques. Thus, the computer system may automatically detect the type of overlay used.
REFERENCES:
patent: 4550221 (1985-10-01), Mabusth
patent: 4684767 (1987-08-01), Phalen
patent: 4733222 (1988-03-01), Evans
patent: 5149923 (1992-09-01), Demeo
patent: 5250929 (1993-10-01), Hoffman et al.
patent: 5463388 (1995-10-01), Boie et al.
patent: 5613137 (1997-03-01), Bertram et al.
patent: 5674018 (1997-10-01), Kaufman
Burr Edgar
Compaq Computer Corporation
Ghatt Dave A.
Heim Michael F.
LandOfFree
Touchpad overlay with tactile response does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Touchpad overlay with tactile response, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Touchpad overlay with tactile response will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1208443