Server station selects broadcast or long-term ephemeris data to maintain position fix accuracy while reducing communication channel capacity.
A visual celestial navigation system captures star images to generate a unique fingerprint for device positioning.
A mobile communication device detects vehicle proximity and motion to automatically manage GPS location services for data collection.
Segmenting Real Time Difference measurements from location calculations reduces network load while maintaining accuracy in GNSS-denied areas.
Scanner detects RF signals from fire sensors to calibrate location records against building signal distortions.
Local storage of location history with periodic transmission reduces battery consumption while maintaining service reliability.
A passive sensor system estimates radio frequency source locations using cross-correlation techniques across multiple antenna pairs.
A user device estimates its position by establishing binding boxes from access point signal strengths and finding their contact points.
A location-based voice recognition system correlates audio source position with user identity to authenticate commands.
Overlapping passive infrared sensor zones enable triangulation for accurate location tracking without complex hardware.
A mobile terminal records GPS position data and tag icons to generate a map message for road guidance.
A Mode S radar anti-reflection algorithm identifies reply clusters and updates probability maps to eliminate false tracks.
An optical sensor uses concentric opaque strips to compute ambient light angles from photodetector readings.
Convex hull clustering of AIS data defines port boundaries, resolving anchorage ambiguity and improving arrival time estimation accuracy.
A laser surveying instrument projects a rotary beam detected by multiple photodetectors to calculate machine direction and posture.
Wireless nodes transmit capability indications for carrier phase measurements to enable precise user equipment positioning.
A hybrid positioning system merges coarse GPS data with local Bluetooth fingerprint matching to locate shared resources.
A first device computes relative position data by combining distance and movement measurements from multiple timestamps using sensor fusion techniques.
A location system predicts time of arrival using carrier wave phase differences to calculate mobile station position.
A voice shopping system captures user queries and transmits product information via directional audio beams.
A hybrid method calculates expected signal characteristics at grid points to determine mobile device locations.
A MIMO radar device determines object position angles using phase and amplitude differences from distinct antenna radiation patterns.
Concentric rings filter peer device signals, weighting location data by distance to reduce oscillations from unreliable outliers.
Partial ellipse integral model calculates probability densities from call data records to resolve low accuracy in large cell coverage areas.
A check module validates distance measurements from multiple response elements to verify positioning data integrity.
A radially symmetric measurement head uses a central sending fiber and surrounding receiving fibers to determine object position accurately.
Dynamic scan path adjustments and spiral apodization resolve interruptions from moving platforms, enhancing tracking stability and data link throughput.
Directional filtering reduces communication load by transmitting only signals matching a predetermined user orientation to the home IoT server.
Communication system adjusts vehicle speed based on real-time localization accuracy.
A directional antenna detects electromagnetic radiation along a boresight to identify unauthorized GPS jamming sources disrupting tracking signals.
Segments GPS usage with velocity-based relative corrections to reduce power consumption while maintaining high location accuracy.
A positioning method determines virtual phase measurement values from multiple C-PRS signals to calculate integer ambiguity.
A radio-location method filters spurious location candidates using a radio map to refine target device positioning.
A positioning system determines node orientation using directional measurements and angular weighting functions.
Software modules adjust RF parameters to localize tags, resolving complexity trade-offs in dynamic access control.
A geofencing method calculates a solution set of possible receiver positions from GPS signals to determine spatial containment within a defined volume.
A mobility prediction protocol estimates device location to reduce network overhead.
A lighting node system matches received signal strength indicator fingerprints to assign replacement device roles automatically.
A nurse call server routes alerts to caregivers by tracking their real-time location and status.
Mixing unmodulated and modulated frequencies enables simultaneous channel access, resolving the contradiction between versatility and device complexity.
A system determines geographic coordinates by cross-checking user device locations with registered addresses.
A system estimates business operating hours by analyzing wireless-environment data from user devices alongside social network check-in timestamps.
Sorts frequency difference of arrival observations by ambiguity to refine Kalman filter estimates, resolving geometric inaccuracies from aircraft maneuvers.
A data processing apparatus determines radio signal source positions by analyzing multi-path signal components.
Dynamic triggering of neural network functions reduces signaling overhead while maintaining positioning accuracy.
Asynchronous passive-listening devices determine location by detecting time differences in IEEE 802.15.4z messages exchanged between active nodes.
A wireless receiver identifies noise power levels through spectral analysis to activate programmable notch filters for signal purification.
A calibration method for optronic systems uses inertial reference frames and image tracking to estimate measurement defects.