System and method for monitoring assets, objects, people and animals utilizing impulse radio

• US 7,701,347 B2
• Filed: 10/31/2007
• Issued: 04/20/2010
• Est. Priority Date: 09/27/1999
• Status: Expired due to Fees

• Current Assignee: Plus Location Systems Pty. Limited
• Original Assignee: Time Domain Corporation (Humatics Corporation)
• Inventors: Richards, James L.
• Primary Examiner(s): TRIEU, VAN THANH
• Application Number:
  US11/979,193
• Publication Number:
  US 20080150724A1
• Time in Patent Office: 902 Days
• Field of Search: 340/572.1, 340/572.2, 340/572.4, 340/573.1, 340/573.3, 340/573.4, 340/568.1, 340/568.5, 340/568.6, 340/552, 340/539.1, 340/571, 342/28, 342/33
• US Class Current: 340/572.4
• CPC Class Codes: G01S 2205/002 for traffic control, mobile tracking, guidance, surveillance or anti-collision
• CPC Class Codes: G01S 5/0036 of measured values, i.e. measurement on mobile and position calculation on base station
• CPC Class Codes: G01S 5/021 Calibration, monitoring or correction G01S5/0252 takes precedence
• CPC Class Codes: G01S 5/02216 Timing or synchronisation of the receivers
• CPC Class Codes: G01S 5/14 Determining absolute distances from a plurality of spaced points of known location
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: G06K 7/10306 ultra wide band
• CPC Class Codes: G06Q 10/08 Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
• CPC Class Codes: H04B 1/7163 using impulse radio
• CPC Class Codes: H04B 1/71632 Signal aspects H04B1/7172 and H04B1/7176 take precedence
• CPC Class Codes: H04B 1/7183 Synchronisation
• CPC Class Codes: H04B 1/719 Interference-related aspects
• CPC Class Codes: H04B 2001/6908 using time hopping

Claims