Capacitive touch sensor
AssigneeInFocus Corporation
InventorRoss Kruse
Life of this patent
Estimating the term…
Abstract
A capacitive touch sensor is provided. The capacitive touch sensor may include a printed circuit board coupled to one or more electronic components, a sensing pad coupled to the circuit board, the sensing pad configured to detect touch input, a touch surface positioned in a cooperative position with the circuit board and the sensing pad, and a dielectric material interposed by the sensing pad and the touch surface, the dielectric material having a dielectric constant greater than air at a substantially equivalent temperature and pressure.
Claims19
A capacitive touch sensor comprising:
- a printed circuit board coupled to one or more electronic components;
- a sensing pad coupled to the circuit board, the sensing pad configured to detect touch input;
- a touch surface positioned in a cooperative position with the circuit board and the sensing pad;
- and
- a dielectric material interposed by the sensing pad and the touch surface, the dielectric material having a dielectric constant greater than air at a substantially equivalent temperature and pressure.
An electronic device having touch sensitive capabilities comprising:
- a capacitive touch sensor including a touch surface positioned in a cooperative position with a printed circuit board, one or more electronic components protruding from and coupled to the printed circuit board, a sensing pad coupled to the printed circuit board, the sensing pad configured to conduct an electric current during operation of the electronic device, and a dielectric material interposed by the sensing pad and the touch surface;
- and
- a control system configured to receive inputs from the capacitive touch sensor.
An electronic device having touch sensitive capabilities comprising:
- a capacitive touch sensor including a touch surface positioned in as cooperative position with a printed circuit board, one or more electronic components protruding from and coupled to the printed circuit board, a sensing pad coupled to the printed circuit board, the sensing pad including a layer of indium tin oxide, and a compressible dielectric foam interposed by the printed circuit board and the touch surface and substantially spanning a length between the touch surface and the sensing pad, the dielectric foam having a dielectric constant greater than air at a substantially equivalent temperature and pressure;
- and
- a control system configured to receive inputs from the capacitive touch sensor.
Dependencies are inferred from the claim text.