172322 ⎘
Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves; Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system
Sub-classes:LiDAR SYSTEM INCLUDING OBJECT MOVEMENT DETECTION
#2Technical stage device and method for determining a correlation function
#3System and method for multi-sensor multi-target 3D fusion using an unbiased measurement space
#4Laser source location system
#5Directionality control system, calibration method, horizontal deviation angle computation method, and directionality control method
#6Optical sparse phased array receiver
#7Position determination by observing a celestial object transit the sun or moon
#8Visual augmentation system effectiveness measurement apparatus and methods
#9System and method for multi-sensor multi-target 3D fusion using an unbiased measurement space
#10Chip-scale star tracker
#11Predictive directional antenna targeting
#12Directionality control system, calibration method, horizontal deviation angle computation method, and directionality control method
#13Monolithically constructed radiation detection device
#14Apparatus and method for automatic video recording
#15Chip-scale star tracker
#16Chip-scale star tracker
#17Apparatus and method for automatic video recording
#18Device for driving a light receiving element to track a light source
#19Apparatus and method for automatic video recording
#20Locationing of communication devices
#21Direction finding of wireless devices
#22Device for driving a light receiving element to track a light source
#23Energy Emission Event Detection
#24Baffled sun sensor antenna alignment monitors
#25Optimal sunlight detection system for solar luminaires
#26Optical detector system with multiple path lengths
#27Polarization optical compass