FYI The patent for the strain gauge based pointing stick (AKA "TrackPoint" from the Thinkpad series) has now expired
-
FYI The patent for the strain gauge based pointing stick (AKA "TrackPoint" from the Thinkpad series) has now expired
US6115030A - Trackpoint device - Google Patents
A capacitive sensor input device which includes a movable stud having a top portion for manipulation by a user and a conductive bottom portion is connected to a planar surface, such as a circuit board by means of an elastomeric, adhesive connector. A plurality of sensors are disposed on the planar surface. The respective capacitances between the conductive bottom portion and respective ones of the sensors are used as input to another electronic device, such as a computer, set top box or gaming device. As the capacitances change according to user manipulation of the movable stud elements of the user interface are moved correspondingly.
(patents.google.com)
-
wakest ⁂replied to r҉ustic cy͠be̸rpu̵nk🤠🤖 on last edited by
@cypnk whos making an open hardware version!
-
:PUA: Shlee fucked around andreplied to r҉ustic cy͠be̸rpu̵nk🤠🤖 on last edited by
@cypnk FREE THE NIPPLE