Object motion sensing and measuring apparatus using position sen

Object movement detector system

Object sensor and method for use in controlling an agricultural

Object sensor system for doors

Object-recognition lock

Objective replacing apparatus having objective position, displac

Obscuration detector

Observation apparatus and observation method with reflected...

Observation apparatus with selective light diffusion

Observation optical apparatus

Obstacle detecting system having a plurality of spaced laser dio

Obstacle detection sensor using synchronous detection

Obstacle detection system

Obstruction detection system and method having an...

Obstruction detector for automobile vehicle windows

Obstruction position detecting system with comparison and memory

Obturator disc for an optical transducer

Off the glass imaging rain sensor

Off-axis object detection system for a bar code scanner

Offset optical axes for bar code scanner