Sequential two-key system to input keyboard characters and...
Servo-controlling system incorporated in keyboard instrument for
Shared interface device
Signal input system for an electronic equipment
Signal processing apparatus and method
Signal processing apparatus and method
Simplified alphabetic communicator for handicapped or infirmed p
Single wire keyboard encode and decode circuit
Single-hand input keyboard
Single-hand mounted and operated keyboard
Smart multiple switch scanner, single wire bus multiplex system
Snap-on keyboard and method of integrating keyboard
Soft cover adapter for computer keyboard
Solid state capacitive switch
Spill-resistant keyboard
Split keyboard adjustment system
Stacked computer keyboard function key multiple template retaine
Structure of key pad
Structure of the keypad for keyboard
Stylus-based keyboard key arrangement