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:
Dec. 11, 2018
Filed:
Mar. 10, 2018
Applicant:
Gerald P. Ryan, Geneva, IL (US);
Inventor:
Gerald P. Ryan, Geneva, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/66 (2006.01); H04W 12/08 (2009.01); H04W 12/04 (2009.01);
U.S. Cl.
CPC ...
H04W 12/08 (2013.01); H04W 12/04 (2013.01);
Abstract
A security access system that uses a masking signal transmitted simultaneously with a transmission from a remote Fob or smartphone to mask the transmitted code signal. The remote unit acts in the classical way, as a transmitter only. However, the Base has both receive and transmit functionality. The added transmitter within the Base is used to create a self-generated masking signal. This signal, while fully known to the base, is unknown to any other receiver (including that of an eavesdropper) in the area. Thus only the Base Receiver can subtract out this added signal from the composite signal it receives to recover the access code.