Remote controller navigation interface assembly

An apparatus for interacting with a graphical user interface, comprising:

• a printed circuit board having a top surface and a bottom surface opposite the top surface;
• a plurality of push detection elements disposed on or over the top surface of the printed circuit board, wherein four push detection elements are arranged orthogonally from each other in the cardinal directions;
• a flexible pad layer having a top surface and a bottom surface opposite the top surface, wherein the flexible pad layer is disposed on or over the plurality of push detection elements;
• a navigation key member having a top surface and a bottom surface opposite the top surface, the navigation key member disposed over and covering the four push detection elements, wherein the bottom surface has an annular-shaped cavity;
• four plunger members, each one of the four plunger members disposed above a respective one of the four push detection elements and configured to actuate a respective push detection element when a corresponding plunger member is actuated;
• and
• at least one post member disposed in an angular region between two plunger members of adjacent cardinal directions,
• wherein the four plunger members include a first pair of diametrically opposed plunger members each disposed at a first radial distance from a center point of the navigation key and a second pair of diametrically opposed plunger members each disposed at a second radial distance from the center point, wherein the first radial distance and the second radial distance are different,
• wherein the first radial distance is greater than the second radial distance,
• wherein each plunger member has a top surface and a bottom surface opposite the top surface,
• wherein the top surfaces of the plunger members of the first pair are coupled to the bottom surface of the navigation key,
• wherein the top surfaces of the plunger members of the second pair are spaced apart from the bottom surface of the navigation key,
• wherein the at least one post member includes four post members, the four post members arranged radially and distributed angularly at angular directions of about 30 to 60 degrees, about 120 to 150 degrees, about 210 to 240 degrees, and about 300 to 330 degrees, respectively,
• wherein the four post members are each arranged at a third radial distance from the center point,
• wherein the third radial distance is less than the first radial distance and greater than the second radial distance.