| 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 |
US9390359(B2) |
申请公布日期 |
2016.07.12 |
| 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 |
G08B13/14;G06K19/07;G06K19/077;G06K19/073;G06Q20/20;H04B1/3816;H04B5/00 |
主分类号 |
G08B13/14 |
| 代理机构 |
|
代理人 |
LeMoine Dana B. |
| 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 separate from the contactless interface 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 |
