Marine asset security and tracking (MAST) system

US7394381B2 · kind B2 · utility

Assignees

• UT-BATTELLE, LLC · US
• Navigational Sciences, Inc. · US

Inventors

• Gregory R. Hanson · Clinton, US
• Stephen F. Smith · Knoxville, US
• Michael R. Moore · Redmond, US
• Eric L. Dobson · Charleston, US
• Jeffrey Scott Blair · South Lyon, US
• Christopher Allen Duncan · Marietta, US
• Roberto Lenarduzzi · Knoxville, US

Key dates

• Filing date: May 6, 2004
• Grant date: Jul 1, 2008
• Expiry date: Nov 29, 2025

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04Q2209/40
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Methods and apparatus are described for marine asset security and tracking (MAST). A method includes transmitting identification data, location data and environmental state sensor data from a radio frequency tag. An apparatus includes a radio frequency tag that transmits identification data, location data and environmental state sensor data. Another method includes transmitting identification data and location data from a radio frequency tag using hybrid spread-spectrum modulation. Another apparatus includes a radio frequency tag that transmits both identification data and location data using hybrid spread-spectrum modulation.