| 20110273303 | System and Method to Collect Status Information From Light Based Indicator Systems Such as Stack Lights, Status Lights, Traffic Lights, Safety Lights - A system and method for monitoring status information from a light based indicator system (e.g., stack lights, status lights, traffic lights or safety lights, etc.). At least one light sensor is positioned adjacent to an existing light indicator system, the existing light based indicator system having at least one indicator light to be monitored. A monitoring device at a location remote from the existing light based indicator system receives signals from the at least one light sensor indicative of a status of the at least one indicator light. | 11-10-2011 |
