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:
Oct. 16, 2012
Filed:
Sep. 30, 2008
Applicants:
Dean C. Alhorn, Huntsville, AL (US);
David E. Howard, Hazel Green, AL (US);
Dennis A. Smith, Athens, AL (US);
Inventors:
Dean C. Alhorn, Huntsville, AL (US);
David E. Howard, Hazel Green, AL (US);
Dennis A. Smith, Athens, AL (US);
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/00 (2006.01); H04B 1/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A short-range communication system includes an antenna, a transmitter, and a receiver. The antenna is an electrical conductor formed as a planar coil with rings thereof being uniformly spaced. The transmitter is spaced apart from the plane of the coil by a gap. An amplitude-modulated and asynchronous signal indicative of a data stream of known peak amplitude is transmitted into the gap. The receiver detects the coil's resonance and decodes same to recover the data stream.