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:
May. 12, 2020
Filed:
Apr. 04, 2017
Applicant:
University of Washington, Seattle, WA (US);
Inventors:
Vamsi Talla, Seattle, WA (US);
Joshua R. Smith, Seattle, WA (US);
Shyamnath Gollakota, Seattle, WA (US);
Bryce Kellogg, Seattle, WA (US);
Assignee:
University of Washington, Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 5/12 (2006.01); H04L 27/36 (2006.01); H04L 25/02 (2006.01); H04L 27/00 (2006.01); H04L 27/26 (2006.01); H04L 27/34 (2006.01); H04L 5/00 (2006.01);
U.S. Cl.
CPC ...
H04L 27/365 (2013.01); H04L 25/0278 (2013.01); H04L 27/0002 (2013.01); H04L 27/26 (2013.01); H04L 5/0007 (2013.01); H04L 5/0023 (2013.01); H04L 27/2626 (2013.01); H04L 27/34 (2013.01);
Abstract
Examples described herein include backscatter devices which may transmit orthogonal frequency division multiplexing (OFDM) signals. Techniques for complex analog backscatter are described. Examples of impedance circuitry are described which may be used to provide real and imaginary components of impedance in accordance with inphase and quadrature bits.