Patent US 9,703,391

A keyboard is provided having 26 letters assigned to only 16 to 21 keys, and preferably 21 keys. This advantageous system of typing makes use of either one or two hands. The 26 letters of the English alphabet are all displayed. Five keys have two letters—those letters are PQ, JK, UW, VX and YZ for a total of ten letters. Sixteen keys have one letter assigned to each key—namely the letters A, B, C, D, E, F, G, H, I, L, M, O, N, R, S and T for a total of sixteen letters assigned to a specific key—for a total of 26 letters.