System to detect mail in a mailbox

System to detect slippage of a clutch for an internal combustion

System to detect the presence of an unattended child in a...

System to detect user entry into a defined danger zone

System to determine the intent to brake and to provide...

System to display sawblade angle and height

System to effect digital encoding of an image

System to manually initiate an emergency shutdown test and...

System to minimize the distance between trains

System to monitor conditions in a fluid-containing member

System to monitor the ingestion of medicines

System to monitor the temperature of an integrated circuit and t

System to render constant the probability of false alarm in rada

System to warn of an approaching emergency vehicle

System using electronic devices connected to network

System using two passes searching to locate record having only p

System with a lock and a key which cooperate according to the tr

System with enhanced signal detection and discrimination with sa

System with joystick to control velocity vector of a display cur

System with optical or radio remote control for closing...