Abstract: A mobile computing device includes: a housing having a front face, an opposing back face, and side walls joining the front and back faces; a microphone supported within the housing; and an acoustic channel extending between the microphone and an exterior of the housing, the acoustic channel defined by: (i) a microphone port traversing one of the side walls; (ii) a membrane assembly affixed to a first inner housing surface around the microphone port; and (iii) an isolation plate affixed to a second inner housing surface surrounding at least a portion of the first inner housing surface, the isolation plate having a channel opening therethrough and configured to engage with the membrane assembly.

Abstract: A mobile computing device includes: a housing having a front face, an opposing back face, and side walls joining the front and back faces; a microphone supported within the housing; and an acoustic channel extending between the microphone and an exterior of the housing, the acoustic channel defined by: (i) a microphone port traversing one of the side walls; (ii) a membrane assembly affixed to a first inner housing surface around the microphone port; and (iii) an isolation plate affixed to a second inner housing surface surrounding at least a portion of the first inner housing surface, the isolation plate having a channel opening therethrough and configured to engage with the membrane assembly.

Abstract: A mobile computing device includes: a device housing including a base, a perimeter wall extending from the base to a perimeter upper edge and having a forward section and a rear section, and an external frame member including: (i) a U-shaped wall removably affixed to the forward section of the perimeter wall and terminating at the rear section of the perimeter wall; and (ii) a retaining bezel extending from the U-shaped wall over the perimeter upper edge.

Abstract: A mobile computing device includes: a device housing including a base, a perimeter wall extending from the base to a perimeter upper edge and having a forward section and a rear section, and an external frame member including: (i) a U-shaped wall removably affixed to the forward section of the perimeter wall and terminating at the rear section of the perimeter wall; and (ii) a retaining bezel extending from the U-shaped wall over the perimeter upper edge.

Abstract: A mobile computing device includes: a device housing including a base, a perimeter wall extending from the base to a perimeter upper edge and having a forward section and a rear section, and a display seat within the forward section of the perimeter wall; a display module including a display assembly supported adjacent to the perimeter upper edge by the display seat, and a display module cover overlaid on the display panel; an external frame member including: (i) a U-shaped wall removably affixed to the forward section of the perimeter wall and terminating at the rear section of the perimeter wall; and (ii) a retaining bezel extending from the U-shaped wall over the perimeter upper edge.

Abstract: A bar-code reader includes a housing, a window affixed to the housing and separating an internal environment from an external environment, and an anti-fog coating on the window within an optical path of the bar-code reader. In accordance with one embodiment of the present invention, the anti-fog coating is a hydrophilic layer; in another embodiment, it is a hydrophobic layer. The anti-fog coating may be used internally, externally, or both, and may be applied to any number of components within the optical path.