Issued Patents

  1. 11,205,058 Interrogator and interrogation system employing the same

  2. 10,670,707 Interrogator and system employing the same

  3. 10,628,645 Interrogator and interrogation system employing the same

  4. 10,324,177 Interrogator and system employing the same

  5. 10,185,853 Interrogator and system employing the same

  6. 9,710,683 Interrogator and system employing the same

  7. 9,470,787 Interrogator and system employing the same

  8. 9,135,669 Interrogation system employing prior knowledge about an object to discern an identity thereof

  9. 9,035,774 Interrogator and interrogation system employing the same

  10. 8,948,279 Interrogator and interrogation system employing the same

  11. 8,542,717 Interrogator and interrogation system employing the same

  12. 8,391,488 Method and apparatus for using navigation signal information for geoencryption to enhance security

  13. 8,174,366 Interrogator and interrogation system employing the same

  14. 7,893,840 Interrogator and interrogation system employing the same

  15. 7,671,744 Interrogator and interrogation system employing the same

  16. 7,512,989 Data loader using location identity to provide secure communication of data to recipient devices

  17. 7,501,948 Interrogation system employing prior knowledge about an object to discern an identity thereof

  18. 6,839,539 RF signal repeater in mobile communication systems

  19. 6,522,642 Antenna diversity techniques

  20. 6,501,955 RF signal repeater, mobile unit position determination system using the RF signal repeater, and method of communication therefore

  21. 6,388,997 Timing adjustment control for efficient time division duplex communication

  22. 6,366,566 Efficient communication system using time division multiplexing and timing adjustment control

  23. 6,363,107 Preamble code structure and detection method and apparatus

  24. 6,356,607 Preamble code structure and detection method and apparatus

  25. 6,154,486 Preamble code structure and detection method and apparatus

  26. 6,141,373 Preamble code structure and detection method and apparatus

  27. 6,094,421 Timing adjustment control for efficient time division duplex, frequency division duplex or hybrid time division duplex/frequency division duplex communication

  28. 6,049,538 Efficient communication system using time division multiplexing and timing adjustment control

  29. 6,041,046 Cyclic time hopping in time division multiple access communication system

  30. 5,987,079 Preamble code structure and detection method and apparatus

  31. 5,959,980 Timing adjustment control for efficient time division duplex communication

  32. 5,859,842 Antenna diversity techniques

  33. 5,832,022 Method and apparatus for controlling the modulation index of continuous phase modulated (CPM) signals

  34. 5,818,371 Coherent synchronization and processing of pulse groups

  35. 5,802,046 Efficient time division duplex communication system with interleaved format and timing adjustment control

  36. 5,784,403 Spread spectrum correlation using saw device

  37. 5,754,584 Non-coherent spread-spectrum continuous-phase modulation communication system

  38. 5,745,484 Efficient communication system using time division multiplexing and timing adjustment control

  39. 5,742,583 Antenna diversity techniques

  40. 5,689,502 Efficient frequency division duplex communication system with interleaved format and timing adjustment control

  41. 5,671,219 Communication protocol for spread spectrum communication

  42. 5,648,955 Method for power control in a TDMA spread spectrum communication system

  43. 5,535,237 Method and system for a multi channel and search global position system signal processor

  44. 5,347,284 System and method for a digital navigation satellite receiver

  45. 5,245,628 Enhanced L1/L2 code channel for global positioning system receivers

  46. 5,185,610 GPS system and method for deriving pointing or attitude from a single GPS receiver