Abstract: A method of launching computer commands and programs on a personal digital assistance (PDA) includes sticking a molded membrane having elevated portions serving as emulated mechanical buttons over a touch sensitive screen that is in part disposed over a display with the mechanical buttons placed juxtaposed respective virtual buttons shown on the display, so that, upon pressing a portion of the membrane generates X-Y voltage levels corresponding to touch screen X-Y coordinates that are in turn associated with virtual button corresponding to computer commands and programs that are launched. The pressing of the emulated mechanical button offers stylus-free operation of the PDA.

Abstract: A personal digital assistance (PDA) has a graffiti area upon which a stick-on molded membrane having elevated portions serving as an emulated mechanical cursor button and mouse button that are disposed over a touch sensitive screen with a cursor being displayed upon a display, so that, upon pressing the cursor button, the display cursor moves about the display and onto virtual buttons or icons corresponding to computer commands and programs that are launched when the mouse button is pressed. Portions of the membrane over the graffiti area generates X-Y voltage levels corresponding to touch screen X-Y coordinates that are in turn associated with cursor button and mouse button for emulating a mouse function on the PDS The pressing of the emulated mechanical buttons offers stylus-free emulated mouse operation of the PDA.

Abstract: An imaging system places an object upon a background pattern of regular repetitive marks and records a 2D image that is then processed for determining where in the image the repetitive marks are interrupted by the object, thereby indirectly determining the edge of the object. Multiple 2D images from different perspective are used to create a 3D image of the object. When the object is a human foot, individual bar codes and imaged foot dimensions can be cross-referenced to manufactured shoe sizes for accurate ordering of correctly sized footwear.

Abstract: An imaging method places an object upon a background pattern of regular repetitive marks and records a 2D image that is then processed for determining where in the image the repetitive marks are interrupted by the object, thereby indirectly determining the edge of the object. Multiple 2D images from different perspectives are used to create a 3D image of the object. When the object is a human food, individual bar codes and imaged foot dimensions can be cross-referenced to manufactured shoe sizes for accurate ordering of correctly sized footwear.

Abstract: An apparatus for measuring foot sizes for fitting shoes uses mechanical sliders for sizing the foot disposed in the apparatus using microprocessor controlled electronic sensing of slider positions and computation for display presentation of the foot size so that the operator is presented the length and width of the measured foot without having to interpret conversion charts or printed scales. The operator simply positions a foot on the apparatus with the heel of the foot firmly against a heel cup back stop, then positions the sliders, and activates the apparatus. A toe slider is aligned with the extremity of the longest toe. A ball slider is aligned with the ball of the foot. A width slider is adjusted to contact the side of the foot. The microprocessor senses the slider positions and computes the length and width based on slider positions. Selector switches enable choosing a appropriate scale based upon the appropriate country shoe size standard and upon a man, woman or child shoe size scale.