The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 2015
Filed:
Dec. 06, 2012
Widex A/s, Lynge, DK;
Henning Hougaard Andersen, Birkerod, DK;
Soren Kilsgaard, Smorum, DK;
Niels Ole Knudsen, Humlebak, DK;
Widex A/S, Lynge, DK;
Abstract
In a monitoring device consisting of a reader and a data carrier, the reader () comprises a control unit (), a memory (), a digital signal generator (), an output driver (), resonance capacitors () and a transmitter coil (). The digital signal generator () is adapted for supplying a digital bit sequence selected among, at least two, bit sequences stored in the memory () whereby the strength of the magnetic field generated by the transmitter coil () can be varied dependent on the bit sequence selected by the control unit (). The invention further provides a method of controlling the strength of a magnetic field generated by the reader of the monitoring device.