发明名称 |
MOBILE DEVICE WITH A CONTACTLESS SMARTCARD DEVICE AND ACTIVE LOAD MODULATION |
摘要 |
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. |
申请公布号 |
US2015069139(A1) |
申请公布日期 |
2015.03.12 |
申请号 |
US201414542440 |
申请日期 |
2014.11.14 |
申请人 |
Tyfone, Inc. |
发明人 |
Narendra Siva G.;Chakraborty Saurav;Tadepalli Prabhakar |
分类号 |
G06K19/07;G06K19/077 |
主分类号 |
G06K19/07 |
代理机构 |
|
代理人 |
|
主权项 |
1. A mobile device comprising:
a contactless smartcard integrated circuit having a contactless interface intended for connection to a coil to interact with a radio frequency (RF) field at 13.56 MHz, and having a pad to output digital data; an antenna; and an active transmit driver coupled between the pad to output digital data and the antenna to transmit the digital data. |
地址 |
Portland OR US |