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.

Date of Patent:
May. 03, 2016

Filed:

Oct. 19, 2012
Applicant:

Koninklijke Philips N.v., Eindhoven, NL;

Inventors:

Robert Harwell, Saint Cloud, FL (US);

Otis Robert Harris, Orlando, FL (US);

Assignee:

KONINKLIJKE PHILIPS N.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/38 (2015.01); H04L 5/16 (2006.01); H04L 27/36 (2006.01); H04B 5/00 (2006.01); H04L 27/38 (2006.01);
U.S. Cl.
CPC ...
H04L 27/36 (2013.01); H04B 5/0031 (2013.01); H04B 5/0087 (2013.01); H04L 27/38 (2013.01);
Abstract

A magnetic field modem () includes an electro-magnetic radiation shielded () transmitter section () and a receiver section (). The electro-magnetic radiation shielded () transmitter section () modulates data and transmits the data via a magnetic field through a radio frequency shield (). The receiver section () receives the magnetic field through the radio frequency shield () and demodulates the data. The transmitter section includes an oscillator (), a modulator (), an amplifier (), a magnetic transducer (), and a non-ferrous magnetic shield (). The oscillator () generates a carrier signal. The modulator () connects to the oscillator () and modulates the carrier signal with the data. The amplifier () connects to the modulator () and amplifies the modulated carrier signal. The magnetic transducer () connects to the amplifier () and converts the modulated carrier signal into a modulated magnetic signal. The non-ferrous magnetic shield () shields the magnetic transducer () and blocks emitted electro-magnetic radiation.


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