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Title: Collaborative RFID reader using code divisional multiple access (CDMA) and methods for same

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.

Inventors:
;
Issue Date:
Research Org.:
Cornell Univ., Ithaca, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1924914
Patent Number(s):
11392782
Application Number:
17/055,974
Assignee:
Cornell University (Ithaca, NY)
Patent Classifications (CPCs):
G - PHYSICS G06 - COMPUTING G06K - RECOGNITION OF DATA
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04B - TRANSMISSION
DOE Contract Number:  
AR0000528
Resource Type:
Patent
Resource Relation:
Patent File Date: 05/14/2019
Country of Publication:
United States
Language:
English

Citation Formats

Kan, Edwin C., and Hui, Xiaonan. Collaborative RFID reader using code divisional multiple access (CDMA) and methods for same. United States: N. p., 2022. Web.
Kan, Edwin C., & Hui, Xiaonan. Collaborative RFID reader using code divisional multiple access (CDMA) and methods for same. United States.
Kan, Edwin C., and Hui, Xiaonan. Tue . "Collaborative RFID reader using code divisional multiple access (CDMA) and methods for same". United States. https://www.osti.gov/servlets/purl/1924914.
@article{osti_1924914,
title = {Collaborative RFID reader using code divisional multiple access (CDMA) and methods for same},
author = {Kan, Edwin C. and Hui, Xiaonan},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {7}
}

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