Patent ID: 8350815

Claim:
A portable communication device comprising: a housing; a display disposed within the housing; and at least one touch input device disposed within the housing, the touch input device being operatively coupled to touch input device control circuitry, wherein the touch input device control circuitry cooperates with the touch input device to electrically define at least a first key press area and a second key press area on the touch key input device, wherein the first and second key press areas are separated by a grey zone, and wherein the touch input device control circuitry is configured to: detect a key press in the first key press area of the touch key input device; detect a key release in the first key press area, wherein detecting a release of contact in the first key press area includes detecting contact relative to the touch input device in the grey zone between the first and second key press areas; detect a key press in the second key press area adjacent to the first key press area; and transmit a scroll command if the key press in the second key press area is detected within a predetermined period of time relative to the key release in the first key press area.