Sonitor Technologies As

Rune Holm

Sverre Holm

Ole Hovind

Sverra Holm

Svein Rostad

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.

Data communications

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.

System and method for position determination of objects

The invention relates to a method and a system for monitoring and position determination of objects and/or living beings within an area, such as, e.g. a room in a building. The system comprises a plurality of electronic units, called identification tags, which are attached to the objects that have to be monitored. Each identification tag has its own identification code (ID code) and is equipped with an ultrasonic transmitter, radio transmitter and radio receiver. The ultrasonic signals are received by one or more master and slave units which calculate transit time differences of ultrasonic pulses. This information together with the identification tags' ID code, identification of the room in which it is located, and any additional information are transmitted to a central processing unit which calculates the identification tag's position and presents it to a user of the system.

Ultrasonic tracking and locating system

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.

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Asker, Norway

Rune Holm