Force-based control for a mobile device having a non-linear surface
A mobile computing device has a display with a curved (i.e. non-linear) surface along one or more edges. The curved surface is force (i.e. pressure) sensitive, such that an amount of pressure applied to the surface at a given point (or a region) of the surface is sensed and adapted to be converted into a control signal. One or more control signals generated by sensing a user's interaction with the curved surface are converted into user interface (UI) operations, such as the opening of one or more applications, application menus, or the like. Preferably, the amount of pressure applied by the user varies, and application of a first pressure generates a first control action, and application of a second pressure greater than the first pressure generates a second control action that is related to the first control action.
1. A mobile device, comprising:
a force-sensing display screen having a non-linear portion;
an accelerometer;
a processor;
a computer memory holding computer program instructions executed by the processor, the computer program instructions comprising program code configured to:
receive pressure data from the force-sensing display screen;
receive device orientation data as measured by the accelerometer;
convert the received pressure data and the received device orientation data into one or more control signals; and
use the one or more control signals to control an extent of exposure of an interface element with respect to a display interface as a function of both a pressure applied to the non-linear portion of the force-sensing display screen and on an orientation of the device, the interface element moving in a direction of pressure applied;
wherein the interface element comprises at least first and second menus, and wherein the second menu is rendered as a sub-menu of the first menu as an amount of applied pressure, as represented by the pressure data received, increases, wherein the first and second menus move in a common direction and the second menu progressively overlays the first menu as the amount of applied pressure increases.
2. The mobile device as described in claim 1 wherein the pressure data varies as a function of an amount of applied pressure.
3. The mobile device as described in claim 2 wherein the program code is configured to expose and control a degree of movement of the interface element as an amount of applied pressure, as represented by the pressure data received, varies.
4. The mobile device as described in claim 1 wherein the first menu is a system menu and the second menu is an application menu.
5. The mobile device as described in claim 1 wherein the program code is configured to maintain the second menu in a fixed position on the display interface when a given applied force, as represented by the received pressure data, is reached.
6. The mobile device as described in claim 1 wherein the non-linear portion is curved.
7. The mobile device as described in claim 1 wherein the program code is further configured to control the exposure of the interface element based on a time since a last user activity.
8. The mobile device as described in claim 1 wherein the program code is further configured to control the exposure of the interface element based on a time-of-day.
9. The mobile device as described in claim 1 wherein the program code is further configured to adjust one of: a display color, and a display contrast, based upon the received pressure data.
10. The mobile device as described in claim 1 further including a biometric sensor, and wherein the program code is further configured to control the exposure of the interface element responsive to detection by the biometric sensor of a user physical characteristic.