US Patent 8098239 Systems and methods for positional number entry

In various embodiments, a number entry mechanism may include a motion sensitive input device that is operable to receive a user motion along two or more dimensions. The motion sensitive input device may include input devices such as touchpads, touchscreens, mouse, etc. that can receive directional input. The number entry mechanism may also include a memory medium with program instructions operable to receive the input motion and determine numerical inputs based on the received input motion. In some embodiments, the memory medium and program instructions may be resident on the motion sensitive input device or may be part of a separate device. In some embodiments, the magnitude of the motion in each of, for example, two dimensions may be used to determine one or more numerical inputs.