| SONITOR TECHNOLOGIES AS Patent applications |
| Patent application number | Title | Published |
|---|
| 20120044786 | ACOUSTIC POSITION-DETERMINATION SYSTEM - The position of a mobile unit ( | 02-23-2012 |
| 20110235466 | ULTRASOUND DETECTORS - A method of receiving data coded on an ultrasonic signal comprising: detecting said ultrasonic signal using a microphone ( | 09-29-2011 |
| 20110018710 | IDENTIFICATION DEVICES - An identification device comprising an ultrasound transmitter unit ( | 01-27-2011 |
| 20090213942 | DATA COMMUNICATIONS - Data communication apparatus comprising transmission means adapted to transmit data as the ratio of pairs of frequencies between objects that are moving relative to one another. It is particularly applicable to acoustic data communications at ultrasound frequencies in air. | 08-27-2009 |
| 20090201765 | SYSTEM AND METHOD FOR POSITION DETERMINATION OF OBJECTS - A method and a system for detection and position determination of chips, which transmit ultrasound signals in a room. The system comprises electronic identification chips, which are attached to objects that have to be monitored. Each chip is equipped with a transmitter and a receiver. The signals are received by a plurality of detector units, which are connected to a detector base unit that registers and interprets the signals transmitted form the identification chips. Detector base units located in different rooms are interconnected in a network and transmit processed information to one or more central units for further interpretation and sorting. The special feature of the invention is that line interference is substantially removed, and it is possible to determine position even though the identification chips are in motion. | 08-13-2009 |
| 20080259732 | MOBILE OBJECT COMMUNICATION AND POSITION DETERMINATION - An ultrasound position determination system includes a base unit and at least one mobile unit. Each of the mobile and base units are operable to transmit and receive ultrasonic signals. The mobile unit is adapted to transmit a predetermined signal in dependence upon the state of transmission of the base unit. The base unit is adapted to determine the time taken for the signal to pass from the mobile unit to the base unit and thereby calculate a distance between the mobile unit and the base unit. | 10-23-2008 |
