Low power non-volatile non-charge-based variable supply RFID tag memory
US-11989606-B2 · May 21, 2024 · US
Enhanced integrated circuit with smartcard controller
US8937549B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8937549-B2 |
| Application number | US-201414460647-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 15, 2014 |
| Priority date | Aug 8, 2008 |
| Publication date | Jan 20, 2015 |
| Grant date | Jan 20, 2015 |
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Abstract
Official abstract text for this publication.
An RFID card includes a smartcard controller that receives power from a host device. The RFID card also includes a small inductive device capable of inductive coupling with an RFID reader. The small inductive device is small enough to fit in the form factor of a memory card or SIM card. Enhancement circuits enhance the usable read and write distance of the RFID card.
First claim
Opening claim text (preview).
What is claimed is: 1. A memory card that includes an integrated circuit for communications, the integrated circuit comprising: a smartcard controller; an amplifier to receive a signal from a receive antenna when the receive antenna is inductively coupled to another device, the amplifier providing a simplex communication path from the receive antenna to a contactless interface on the smartcard controller; and a transmit circuit to receive outgoing data from the contactless int…
Assignees
Inventors
Classifications
- G06K19/0701Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G06K19/0727Primary
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US8937549B2 cover?
- An RFID card includes a smartcard controller that receives power from a host device. The RFID card also includes a small inductive device capable of inductive coupling with an RFID reader. The small inductive device is small enough to fit in the form factor of a memory card or SIM card. Enhancement circuits enhance the usable read and write distance of the RFID card.
- Who is the assignee on this patent?
- Tyfone Inc
- What technology area does this patent fall under?
- Primary CPC classification G06K19/0701. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 20 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).