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. 25, 2016
Filed:
Dec. 16, 2013
Lockheed Martin Corporation, Bethesda, MD (US);
Alexander Gregory Hrybyk, Millersville, MD (US);
Kwok Lee Tang, Ellicott City, MD (US);
Michael Panczenko, Ellicott City, MD (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
Methods and systems for transmitting and receiving data using audio devices but without being detectable by a human ear are disclosed. For example, a device for transmitting data can include a modulator configured to transform digital data into a modulated signal having a frequency no less than about 20 kHz, and an audio transmitter coupled to an output of the modulator configured to transmit the modulated signal into a sound propagating medium without being detected by a human ear. The methods and systems can be used to perform two-factor authentication for permitting a user to access a remote server or other device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile