Portable data terminal with modular keypad
Portable radio remote control transmitter
Portable terminal device and control method of the same
Portable unit for the input of data in a digital device
Position detector
Position detector
Position detector
Position encoder system
Position sensor
Power control latch
Predictive data entry method for a keyboard
Predictive keyboard
Press key structure
Press key structure
Pressure password input device and method
Prevention of incompatible keyboard selections from being...
Printed circuit rotary switch with decoder
Process and apparatus for computerizing translation of motion of
Programmable keypad monitor
Programmable membrane switch input/output system