A Smart Contact Lens System with 433MHz Wireless Power and Data Transfer at a Modulation Index Down to 0.02

This paper presents a wireless power and data transfer system for a low modulation index (MI) of smart contact lens (SCL). Two chips, Reader and Transponder, co-optimized in a full chain of 433MHz system enable data communication even at an MI of 0.02%. The bit error rate (BER) at 0.1% MI is less th...

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Bibliographic Details
Main Authors: Roh, Heesung, Yoo, Hyun Jin, Yoo, Si-Youl, Pyen, Seung Hee, Jeon, Cheonhoo, Sim, Jae-Yoon
Format: Conference Proceeding
Language:English
Subjects:
Bit error rate
Data transfer
In vivo
Modulation
Rabbits
Very large scale integration
Wireless communication
Online Access:Request full text
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Summary:This paper presents a wireless power and data transfer system for a low modulation index (MI) of smart contact lens (SCL). Two chips, Reader and Transponder, co-optimized in a full chain of 433MHz system enable data communication even at an MI of 0.02%. The bit error rate (BER) at 0.1% MI is less than 4\times 10^{-6} , representing an improvement over 250 times compared to the previous best. The full system was verified in vitro and in vivo with a live rabbit.
ISSN:2158-9682
DOI:10.1109/VLSITechnologyandCir46783.2024.10631553