1
Pritchard Jeffrey O, Allen Timothy P, Gillespie David W, Leroy Lieven P: Object position detector with noise suppression feature. Synaptics, January 14, 1998: EP0818751-A1 (32 worldwide citation)

A method for suppressing noise in a touchpad cursor control device which operates by scanning at one of a plurality of scanning frequencies a number of inputs associated with a touchpad, comprises the steps of measuring the noise level at each one of said plurality of scanning frequencies and settin ...


2
Bisset Stephen, Miller Robert J, Allen Timothy P, Steinbach Gunter: Touch pad driven handheld computing device.. Synaptics, August 2, 1995: EP0665508-A2 (18 worldwide citation)

A handheld computing device comprises a thin enclosure having two opposing major faces. A display screen is disposed on a first one of the major opposing faces of the enclosure and a touch-sensitive object position detector input device is disposed on a second one of the major opposing faces of the ...


3
Gillespie David, Allen Timothy P, Wolf Ralph: Method for compensating for unintended lateral motion in a tap gesture made on a touch-sensor pad. Synaptics, October 14, 1998: EP0870223-A1 (8 worldwide citation)

Methods for recognizing gestures made by a conductive object on a touch-sensor pad are disclosed. Tapping, pushing, hopping, and zigzag gestures are recognized by analyzing the position, pressure, and movement of the conductive object on the sensor pad during the timne of a suspected gesture, and si ...


4
Gillespie David, Allen Timothy P, Miller Robert J, Faggin Federico: Object position detector with edge motion feature. Synaptics, June 11, 1997: EP0777875-A1 (6 worldwide citation)

A proximity sensor system includes a sensor matrix array having a characteristic capacitance on horizontal and vertical conductors connected to sensor pads. The capacitance changes as a function of the proximity of an object or objects to the sensor matrix. The change in capacitance of each node in ...


5
Allen Timothy P, Gillespie David, Miller Robert J, Steinbach Gunter: Object position detector. Synaptics, June 11, 1997: EP0777888-A1 (4 worldwide citation)

A proximity sensor system includes a sensor matrix array having a characteristic capacitance on horizontal and vertical conductors connected to sensor pads. The capacitance changes as a function of the proximity of an object or objects to the sensor matrix. The change in capacitance of each node in ...


6
Gillespie David, Allen Timothy P, Ferrucci Aaron T: Pressure sensitive scrollbar feature. Synaptics, September 2, 1998: EP0861462-A1 (4 worldwide citation)

A proximity sensor system includes a sensor matrix array having a characteristic capacitance on horizontal and vertical conductors connected to sensor pads. The capacitance changes as a function of the proximity of an object to the sensor matrix. The change in capacitance of each node in both the X ...


7
Gillespie David, Allen Timothy P, Ferrucci Aaron T: Pressure sensitive scrollbar feature. Synaptics, D ALESSANDRO Kenneth, May 22, 1997: WO/1997/018508 (2 worldwide citation)

A proximity sensor system includes a sensor matrix array having a characteristic capacitance on horizontal and vertical conductors connected to sensor pads. The capacitance changes as a function of the proximity of an object to the sensor matrix. The change in capacitance of each node in both the X ...


8
Gillespie David, Allen Timothy P, Wolf Ralph: Object position detector with edge motion feature and gesture recognition. Synaptics, March 5, 2003: EP1288773-A2 (1 worldwide citation)

Methods for recognizing gestures made by a conductive object on a touch-sensor pad are disclosed. Tapping, pushing, hopping, and zigzag gestures are recognized by analyzing the position, pressure, and movement of the conductive object on the sensor pad during the time of a suspected gesture, and sig ...


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Allen Timothy P, Schediwy Richard R, Faggin Federico: Stylus input capacitive touchpad sensor. Synaptics, D ALESSANDRO Kenneth, May 22, 1997: WO/1997/018528 (1 worldwide citation)

A capacitive sensor comprises first and second sets of conductive traces and a compliant rugose material having a rugose surface located proximate to the first and second sets of conductive traces whereby deformation of the rugose surface causes a change in dielectric constant of the rugose material ...