172252 ⎘
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 ultrasonic, sonic or infrasonic waves
Sub-classes:INDOOR LOCATION POSITION SYSTEM AND METHOD
#2MAGNETOSTRICTIVE POSITION MEASUREMENTS BASED ON LONGITUDINAL AND TORSIONAL WAVES
#3APPARATUS AND METHOD OF MONITORING PRODUCT PLACEMENT WITHIN A SHOPPING FACILITY
#4SYSTEMS, DEVICES AND METHODS FOR DETERMINING ITEM AVAILABILITY IN A SHOPPING SPACE
#5OVERRIDING CONTROL OF MOTORIZED TRANSPORT UNIT SYSTEMS, DEVICES AND METHODS
#6CORRECTION OF INTERNAL WAVE EFFECTS ON A PROPAGATING ACOUSTIC SIGNAL
#7Shopping facility assistance systems, devices and methods
#8Apparatus and method of monitoring product placement within a shopping facility
#9Method for performing acoustic measurements
#10SYSTEMS, DEVICES AND METHODS FOR DETERMINING ITEM AVAILABILITY IN A SHOPPING SPACE
#11Indoor location position system and method
#12Ultrasonic diagnostic system
#13System for autonomous and semi-autonomous material handling in an outdoor yard
#14Shopping facility assistance systems, devices and methods
#15Integrated acoustic localization and communications array
#16Apparatus and method of monitoring product placement within a shopping facility
#17Overriding control of motorized transport unit systems, devices and methods
#18RECHARGING APPARATUS AND METHOD
#19SHOPPING FACILITY ASSISTANCE SYSTEMS, DEVICES AND METHODS TO DETECT AND HANDLE INCORRECTLY PLACED ITEMS
#20Systems and methods for distance independent differential signature detection
#21Apparatus and method of monitoring product placement within a shopping facility
#22Shopping facility assistance systems, devices and methods
#23SYSTEMS, DEVICES AND METHODS OF CONTROLLING MOTORIZED TRANSPORT UNITS IN A RETAIL SHOPPING FACILITY
#24APPARATUS AND METHOD OF OBTAINING LOCATION INFORMATION OF A MOTORIZED TRANSPORT UNIT
#25SHOPPING FACILITY ASSISTANCE SYSTEMS, DEVICES, AND METHODS TO FACILITATE RETURNING ITEMS TO THEIR RESPECTIVE DEPARTMENTS
#26SYSTEMS, DEVICES AND METHODS FOR DETERMINING ITEM AVAILABILITY IN A SHOPPING SPACE
#27Biometric information sensor and display device having the same
#28Autonomous underwater vehicle light show
#29SYSTEMS, DEVICES, AND METHODS FOR PROVIDING PASSENGER TRANSPORT
#30SHOPPING FACILITY ASSISTANCE SYSTEMS, DEVICES AND METHODS
#31Location determination system having rotating identifiers for distinguishing transmitters
#32SHOPPING FACILITY ASSISTANCE SYSTEM AND METHOD HAVING A MOTORIZED TRANSPORT UNIT THAT SELECTIVELY LEADS OR FOLLOWS A USER WITHIN A SHOPPING FACILITY
#33Apparatus and method of monitoring product placement within a shopping facility
#34Shopping facility track system and method of routing motorized transport units
#35SYSTEMS, DEVICES AND METHODS FOR RESTORING SHOPPING SPACE CONDITIONS
#36Semi-passive transponder
#37Acoustic transmission device and process for tracking selected hosts
#38Two-stage beamforming
#39Apparatus and method of obtaining location information of a motorized transport unit
#40Hydroacoustic device
#41METHOD AND APPARATUS FOR TRANSPORTING A PLURALITY OF STACKED MOTORIZED TRANSPORT UNITS
#42Location beacon assembly
#43Shopping facility assistance object detection systems, devices and methods
#44Method for detecting position of mobile body
#45SUBSEA LONG-HAUL TRANSPONDER
#46Fiber optic personnel safety systems and methods of using the same
#47SHOPPING FACILITY ASSISTANCE SYSTEMS, DEVICES AND METHODS
#48Shopping facility discarded item sorting systems, devices and methods
#49Trash can monitoring systems and methods
#50Bedload transport methodology and method of use
#51Systems, devices and methods for determining item availability in a shopping space
#52Systems, devices and methods for restoring shopping space conditions
#53AQUATIC TIME SYNCHRONISATION SYSTEM AND METHOD OF DETERMINING A TIME OFFSET
#54Shopping facility assistance systems, devices, and methods to facilitate returning items to their respective departments
#55Shopping facility assistance system and method to retrieve in-store abandoned mobile item containers
#56Shopping facility track system and method of routing motorized transport units
#57Shopping facility assistance systems, devices and methods to address ground and weather conditions
#58Localisation system
#59Underwater acoustic array, communication and location system
#60Data transmission via wide band acoustic channels
#61Assignment of a motorized personal assistance apparatus
#62Shopping facility assistance systems, devices and methods
#63Shopping facility assistance systems, devices and methods
#64Systems, devices and methods of controlling motorized transport units in fulfilling product orders
#65Systems, devices and methods for monitoring modular compliance in a shopping space
#66Shopping facility assistance systems, devices and methods to drive movable item containers
#67Shopping facility assistance system and method having a motorized transport unit that selectively leads or follows a user within a shopping facility
#68Motorized transport unit worker support systems and methods
#69Overriding control of motorize transport unit systems, devices and methods
#70Shopping facility assistance systems, devices, and methods to identify security and safety anomalies
#71Shopping facility assistance object detection systems, devices and methods
#72Shopping facility assistance systems, devices and methods that employ voice input
#73Shopping facility assistance systems, devices and methods
#74Underwater tracking system
#75Apparatus and method of obtaining location information of a motorized transport unit
#76Shopping space route guidance systems, devices and methods
#77Method and apparatus for transporting a plurality of stacked motorized transport units
#78Recharging apparatus and method
#79Acoustic transmission device and process for tracking selected hosts
#80NARROWCAST MESSAGING SYSTEM
#81SWARM MAPPING SYSTEM
#82GPS assisted torpedo recovery system
#83Positioning system, positioning method, and positioning program
#84Methods and apparatus for underwater electrical near-field signal system
#85Method and system for presence detection
#86Method and apparatus for providing location information of user devices based on signal frequencies of transmitters
#87Positional information transmission system, positional information transmitter, and positional information transmitting method
#88Fiber optic personnel safety systems and methods of using the same
#89GPS assisted torpedo recovery system
#90Detection of multipath and transmit level adaptation thereto for ultrasonic locationing
#91Method for instrumenting a container intended to be set moving in particular in order to mix an assortment of materials
#92Methods and systems for monitoring liquids
#93Method for locating a terminal at the surface of a coverage area by means of a telecommunication network using a multi-beam satellite
#94Localization of a wireless user equipment (UE) device based on out-of-hearing band audio signatures for ranging
#95Method and apparatus for providing location information of user devices based on signal frequencies of transmitters
#96PRESENCE SENSOR WITH ULTRASOUND AND RADIO
#97Acoustic proximity sensing
#98Method and device for estimating an inter-node distance between nodes arranged along towed acoustic linear antennas
#99Fiber optic personnel safety systems and methods of using the same
#100Transducer and system of arrangement for a panel array
#101Quality control of mapping data
#102Building a three-dimensional model of an underwater structure
#103METHOD OF PERSONAL NAVIGATION USING STRIDE VECTORING
#104Data transmission via wide band acoustic channels
#105Acoustic transducer for swath beams
#106System and Method of Determining an Underwater Location
#107Low pin count high voltage ultrasound transmitter and method therefor
#108Ultrasound zone location system with high capacity
#109Method of personal navigation using stride vectoring
#110Target searching device, target searching program, and target searching method
#111System and method for extending GPS to divers and underwater vehicles
#112Ultrasonic multilateration system for stride vectoring
#113METHODS AND APPARATUS TO MONITOR CONSUMER ACTIVITY
#114System and method for extending GPS to divers and underwater vehicles
#115System for measuring radio communicative region
#116System of communication between synchronized submarine devices
#117System and method for extending GPS to divers and underwater vehicles
#118GPS-based underwater cable positioning system
#119Infrastructure enabled smart dual-mode tags
#120Method and system for measuring physical phenomena in an open water environment
#121Adaptive pinger
#122System and method of fast transition detection in asynchronous RTLS
#123Acoustic field coupling with micro-devices
#124Method and apparatus for determining acoustic communication rate in micro-devices
#125System for coupling acoustics waves in small devices
#126Systems and methods for communicating in a multi-device environment
#127Method and apparatus for broadcasting an acoustic signal from a micro-device
#128Variable shock wave bio-oil extraction system
#129Acoustics for power and communication in small devices
#130Method and system for presence detection