| TEKTRAP SYSTEMS, INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120075139 | Method and Apparatus For Tracking or Tracing The Movement of Shipping Containers - A covert device for tracing or tracking the movement of a shipping container has a primary satellite receiver responsive to external satellite signals to obtain positional information, a secondary receiver for obtaining coarse positional information from terrestrial radio signals, and a memory. A processor processes the available positional information to obtain a fix in response to an event and stores the fix in association with the event in memory. The receivers preferably use the shipping container at least in part as an antenna. When the secondary receiver is an FM broadcast antenna, the gap between the doors of the shipping container can serve as a slotted antenna. | 03-29-2012 |
| 20110260869 | Method And Device For Tracing Objects And Detecting Change In Configuration Of Objects - A change in the configuration of an object is detected by an antenna from at least a portion of the object or providing an antenna closely electrically coupled to said object, receiving remote radio transmissions with a radio receiver using said antenna, and detecting a change in the configuration of said object by monitoring the signal strength of the radio transmissions received from the antenna. The same antenna can also be used to determine the path traced by the object by receiving the remote radio transmissions and comparing them with known spectra. | 10-27-2011 |
