| 发明名称 |
PACKET PROCESSOR VERIFICATION METHODS AND SYSTEMS |
| 摘要 |
Methods and systems for transmitting and receiving data using audio devices but without being detectable by a human ear are disclosed. For example, a device for transmitting data can include a modulator configured to transform digital data into a modulated signal having a frequency no less than about 20 kHz, and an audio transmitter coupled to an output of the modulator configured to transmit the modulated signal into a sound propagating medium without being detected by a human ear. The methods and systems can be used to perform two-factor authentication for permitting a user to access a remote server or other device. |
| 申请公布号 |
US2014181938(A1) |
申请公布日期 |
2014.06.26 |
| 申请号 |
US201314107172 |
申请日期 |
2013.12.16 |
| 申请人 |
Lockheed Martin Corporation |
发明人 |
HRYBYK Alexander Gregory;Tang Kwok Lee;Panczenko Michael |
| 分类号 |
H04L27/20;H04L29/06;H04L27/233 |
主分类号 |
H04L27/20 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A device for transmitting data, comprising:
a modulator configured to transform digital data into a modulated signal having a frequency no less than about 20 kHz; and an audio transmitter coupled to an output of the modulator configured to transmit the modulated signal into a sound propagating medium without being detected by a human ear. |
| 地址 |
Bethesda MD US |
