172235 ⎘
Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves; Systems for determining direction or position line Rotating or oscillating beam beacons defining directions in the plane of rotation or oscillation
Sub-classes:RELATIVE LOCALIZATION METHOD AND SYSTEM
#2SYSTEM AND METHOD FOR FACILITATING POSITION TRACKING
#3Positioning in WLAN systems
#4Automated package delivery to a delivery receptacle
#5Positioning of wireless devices
#6Automated package delivery to a delivery receptacle
#7Handling packet data units
#8Handling positioning messages
#9Method and apparatus for determining a position of user equipment, and an antenna set therefor
#10Method and system for 60 GHz antenna adaptation and user coordination based on base station beacons
#11Terrestrial position and timing system
#12Scanning polarized RF reference sources for angular orientation measurement for munitions and the like
#13Method and system for 60 GHz antenna adaptation and user coordination based on base station beacons
#14System and method for providing a polarized RF reference system with scanning polarized RF reference sources and their self-alignment for munitions
#15Localization method and system thereof
#16System and method for enhancing sensitivity of narrow information bandwidth receivers
#17Method and system for 60 GHz antenna adaptation and user coordination based on base station beacons
#18Oblique EM wave navigation coordinate plotter and cooperative transponder
#19Automated package delivery to a delivery receptacle