Bidirectional wireless number pad and keyboard
BIOS password security using modified scan codes
Breakaway keyboard
Breath actuated pointer to enable disabled persons to operate co
Brief numerical keypad and its output method
Button-key/cylindrical-key alphabetizer
Cache based scan matrix keyboard controller
Capacitance sensing matrix for keyboard architecture
Capacitance sensitive switch and switch array
Capacitive card module
Capacitive input device
Capacitive input device
Capacitive joystick apparatus
Capacitive keyboard device with a keystroke triggering...
Capacitive keyboard operable through a thick dielectric wall
Capacitive keyboard with non-locking reduced keying ambiguity
Capacitive keyswitch membrane with self contained sense-to-groun
Capacitive pointing stick
Capacitive proximity sensor
Capacitive relay takeoff swimming platform sensor system