A system and method of providing security during operation of a self-service checkout terminal by detecting movement of an item within a scanner zone associated with the terminal with a video system and generating a scanning-attempt control signal in response thereto. The method also includes the step...http://www.google.es/patents/US5965861?utm_source=gb-gplus-sharePatente US5965861 - Method and apparatus for enhancing security in a self-service checkout terminal
Method and apparatus for enhancing security in a self-service checkout terminal