OFFSET CROSS Cursor Step Key
Original Publication Date: 1984-Oct-01
Included in the Prior Art Database: 2005-Feb-05
The OFFSET CROSS cursor step key arrangement is a new design that enhances cursoring performance because of its compatibility with the use of human hands and spatial mnemonicity. Cursor step keys are used to move a cursor on a cathode ray tube, in four directions: up, down, right and left. The arrangement of these keys should make ease of movement and spatial mnemonicity compatible. Fig. 1 is designed primarily for ease of movement, and the geometric configuration of Fig. 2 enhances mnemonicity. But the offset cross design (Fig. 3) combines both of these considerations. The up key is topmost and to the right, the down key is at the bottom to the left, the left and right keys are left and right, respectively. Unlike Fig. 1, the OFFSET CROSS does not require the fingers to twist in order to reach the up and down keys.