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:
Mar. 05, 2024
Filed:
Jun. 13, 2022
Applicant:
Cornell University, Ithaca, NY (US);
Inventors:
Edwin C. Kan, Ithaca, NY (US);
Xiaonan Hui, Ithaca, NY (US);
Assignee:
Cornell University, Ithaca, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 7/10 (2006.01); G06K 19/07 (2006.01); H04B 5/00 (2006.01); H04B 7/216 (2006.01);
U.S. Cl.
CPC ...
G06K 7/10019 (2013.01); G06K 19/0724 (2013.01); H04B 5/0031 (2013.01); H04B 5/0037 (2013.01); H04B 7/216 (2013.01);
Abstract
The present disclosure provides collaborative radiofrequency identification (RFID) readers that employ code division multiple access (CDMA) encoding to simultaneously broadcast to and read responses from tags in an overlapping reading zone with improved data synchronization and read yield rates. In some embodiments, a harmonic backscattering scheme is used to enable the system to have a much higher signal-to-noise ratio (SNR) and sensitivity, while the reader CDMA protocol can be integrated with an initial TDMA polling process or alternative tag CDMA scheme.