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

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

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

6,522,642 Antenna diversity techniques

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

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

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

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

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

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

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

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

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

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

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

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

5,859,842 Antenna diversity techniques

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

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

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

5,784,403 Spread spectrum correlation using SAW device

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

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

5,742,583 Antenna diversity techniques

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

5,671,219 Communication protocol for spread spectrum communication

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

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

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

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

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