Proximity detector in handheld device

A method for proximity detection, comprising:

• generating a plurality of proximity sensing fields over at least a portion of one or more proximity sensing surfaces, each proximity sensing field having a sensing field height for sensing an object over the one or more proximity sensing surfaces;
• performing a first operation when one or more objects are detected by a first proximity sensing field having a first sensing field height, and
• performing a second operation when one or more objects are detected by a second proximity sensing field having a second sensing field height.

A proximity sensing surface, comprising:

• a plurality of proximity sensors configured for generating a plurality of proximity sensing fields of different heights in different areas of the proximity sensing surface;
• wherein the plurality of sensing fields create a proximity sensing topography over the proximity sensing surface for detecting one or more objects in the different areas at the different heights to trigger different functions.