Low Profile Magnetic Keyboard
Original Publication Date: 1984-Jan-01
Included in the Prior Art Database: 2005-Feb-02
Fig. 1 illustrates in a schematic cross section an enlarged view of a single key position in a multiple key keyboard. The components are essentially stamped, die-cut sections of continuous sheets of material that are stacked together. The main components depicted create a magnetic snap-actuation mechanism that may be employed with any of a variety of sensor technologies well known in the art. The main baseplate 1 consists of a continuous plastic magnetic material or the like with a number of apertures 11, one for each key position. A circuit board 2 that can be integral with the magnetic material 1, as in a printed circuit, on top of it or which may be separately applied to a circuit board 2, is also included.