18396071. INTERNAL VOLTAGE GENERATION CIRCUIT OF SMART CARD AND SMART CARD INCLUDING THE SAME simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)

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INTERNAL VOLTAGE GENERATION CIRCUIT OF SMART CARD AND SMART CARD INCLUDING THE SAME

Organization Name

SAMSUNG ELECTRONICS CO., LTD.

Inventor(s)

Eunsang Jang of Hwaseong-si (KR)

Junho Kim of Seoul (KR)

Inhyuk Kim of Hanam-si (KR)

INTERNAL VOLTAGE GENERATION CIRCUIT OF SMART CARD AND SMART CARD INCLUDING THE SAME - A simplified explanation of the abstract

This abstract first appeared for US patent application 18396071 titled 'INTERNAL VOLTAGE GENERATION CIRCUIT OF SMART CARD AND SMART CARD INCLUDING THE SAME

Simplified Explanation

The internal voltage generation circuit of a smart card for fingerprint authentication includes various components such as contact switches and converters to manage voltage levels efficiently.

  • The first contact switch directs the contact voltage to different nodes based on switching signals.
  • The second contact switch also controls the flow of contact voltage to specific nodes.
  • The bidirectional switched capacitor converter adjusts driving voltages to provide boosted voltages as needed in different modes of operation.

Potential Applications

This technology can be applied in smart cards for secure fingerprint authentication, access control systems, and other biometric identification devices.

Problems Solved

This innovation solves the problem of efficiently generating and managing internal voltages for fingerprint authentication in smart cards, ensuring reliable and secure operation.

Benefits

The benefits of this technology include improved security, efficient voltage management, and reliable operation for fingerprint authentication in smart cards.

Potential Commercial Applications

A potential commercial application of this technology could be in the development of secure smart cards for various industries such as finance, healthcare, and government agencies.

Possible Prior Art

One possible prior art could be the use of traditional voltage generation circuits in smart cards for authentication purposes.

Unanswered Questions

How does this technology compare to other voltage generation circuits in terms of efficiency and reliability?

This article does not provide a direct comparison with other voltage generation circuits in terms of efficiency and reliability. Further research or testing may be needed to determine the advantages of this technology over existing solutions.

What are the potential limitations or drawbacks of implementing this technology in smart cards for fingerprint authentication?

The article does not address any potential limitations or drawbacks of implementing this technology in smart cards for fingerprint authentication. Additional studies or real-world applications may reveal challenges or constraints that need to be considered.


Original Abstract Submitted

An internal voltage generation circuit of a smart card to perform fingerprint authentication and a smart card includes a first contact switch, a second contact switch, a switched capacitor converter and a bidirectional switched capacitor converter. The first contact switch selectively switches a contact voltage to a first node based on a first switching enable signal, in a contact mode. The second contact switch selectively switches the contact voltage to a second node based on a second switching enable signal, in the contact mode. The bidirectional switched capacitor converter steps down a first driving voltage of the first node to provide a second voltage to the second node in the contactless mode and either steps down the first driving voltage or boosts a second driving voltage of the second node based on a level of the contact voltage to provide a boosted voltage to the first node in the contact mode.