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:
Apr. 21, 2025
Filed:
Apr. 18, 2023
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Vaishnavi Nattar Ranganathan, Woodinville, WA (US);
Nissanka Arachchige Bodhi Priyantha, Redmond, WA (US);
Mike Nakahara, Kirkland, WA (US);
Vikram Subramaniam Iyer, Seattle, WA (US);
Harsh Sandesh Desai, Pittsburgh, PA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Examples are disclosed that relate to improving security of radio frequency (RF) backscattered communication. In one example, a RF device includes a primary RF signal receiver, a secondary signal receiver, a signal mixer, and a transmitter. The primary RF signal receiver is configured to receive a RF carrier signal sent from a base station. The secondary signal receiver is configured to receive a masking signal from the base station. The signal mixer is configured to generate a response signal based at least on the RF carrier signal and generate a mixed signal by mixing the response signal and the masking signal. The transmitter is configured to broadcast the mixed signal, via backscattering, as a masked backscattered signal.