CICADA: Synchronizing Time without a Broadcast Signal

Method of Synchronization without Broadcasting Synchronization Signal

This technology synchronizes time using environmental triggers to ensure that nodes (e.g., computer or telecommunication) are working in sync. After the desired environmental conditions are set, the node remains in a sleeping state until those conditions are met. Synchronization can occur without using radio signals, Wi-Fi, or cellular networks, which reduces susceptibility to loss of service and detectability. Without the need for battery power, the technology is able to conserve energy between intervals of time, making it suitable for potential use in extreme environmental situations.

 

Abstract: 

Click to view PDFs of these patents on the US Patent and Trademark Office website: Patent 7,227,858

applications: 
  • Sensors: Triggering recording equipment for studies or documentaries
  • Sensors: Military and emergency operations
  • Synchronizing resource constrained embedded systems
Patent Number: 
7,227,858
Patent Issue Date: 
June 5, 2007
Email: 
tech_transfer@nsa.gov
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