Apparatus, System and Method for Finding Direction
AssigneeSharpeye Systems Oy
InventorPasi Ikonen
Life of this patent
Estimating the term…
Abstract
An apparatus, a system and a method for finding a direction of a radio tag having a transmitter and at least one antenna for sending signals to the apparatus. The apparatus including a receiver; at least one antenna capable to form at least two directivity fields; and means for determining the direction of the apparatus by a first path signal received from the radio tag by the at least two directivity fields of the at least one antenna of the apparatus. The direction is found by turning the apparatus to a direction of the most intense directivity field of the first path signal until the field intensities of the two directivity fields are equal.
Claims18
An apparatus for finding a direction of a radio tag having a transmitter and at least one antenna for sending signals to the apparatus, the apparatus comprising:
- a receiver;
- at least one antenna capable to form at least two directivity fields;
- and
- means for determining the direction of the apparatus by a first path signal received from the radio tag by the at least two directivity fields of the at least one antenna of the apparatus;
- wherein the direction is found by turning the apparatus to a direction of the most intense directivity field of the first path signal until the field intensities of the two directivity fields are equal.
A system for finding a direction, the system comprising:
- an apparatus comprising
- a receiver, and
- at least one antenna capable to form at least two directivity fields,
- a radio tag comprising
- a transmitter, and
- at least one antenna for sending signals to the apparatus,
- wherein the apparatus includes means for determining the direction of the radio tag by a first path signal received from the radio tag by the at least two directivity fields of the at least one antenna of the apparatus, and
- wherein the direction is found by turning the apparatus to a direction of the most intense directivity field of the first path signal until the field intensities of the two directivity fields are equal.
A method for determining a direction of a radio tag in relation to an apparatus, the method comprising:
- receiving a signal from the radio tag by the apparatus;
- determining an intensity of the received signal by at least two directivity fields formed by at least one antenna of the apparatus;
- determining a rough direction by a most intense directivity field;
- and
- turning the apparatus to a direction of the most intense directivity field until field intensities of the two directivity fields are equal.
Dependencies are inferred from the claim text.