Early Collision Detection and Handling in CDMA-based RFID Systems

Description:

This technology introduces a method, system, and computer program product designed to improve collision detection and handling in Code Division Multiple Access (CDMA)-based Radio-Frequency Identification (RFID) systems. It involves a unique interaction between RFID tags and readers, where tags reflect encoded bits back to the reader for early collision detection, followed by a sophisticated handling mechanism to prevent data collisions.

 

Key Advantages:

  • Enhanced data integrity and reliability in RFID communication.
  • Improved system efficiency by minimizing data collision occurrences.
  • Increased scalability of RFID systems by supporting dense tag environments.
  • Reduced error rates and improved operational speed.

 

Problems Solved:

  • High collision rates in dense RFID environments.
  • Reduced efficiency and reliability of data transmission in CDMA-based RFID systems.
  • Limitations in scaling RFID systems to support a large number of tags.

 

Market Applications:

  • Supply chain management and logistics for real-time inventory tracking.
  • Automated toll collection systems with high vehicle throughput.
  • Access control and security systems requiring quick and reliable identification.
  • Retail industry for efficient inventory and sales management.
Patent Information:
Title App Type Country Serial No. Patent No. File Date Issued Date Expire Date Patent Status
Early Collision Detection and Handling In CDMA-Based RFID Systems Utility - Nationalized PCT United States 16/963,638 11,120,232 7/21/2020 9/14/2021 1/28/2039 Issued
Category(s):
Engineering
For Information, Contact:
Reddy Venumbaka
Director
Texas State University - San Marcos
reddy@txstate.edu
Inventors:
Ramsey Doany
Harold Stern
Keywords:
CDMA-based RFID systems
Real-time Inventory Tracking
RFID Environments
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