| 发明名称 |
Power-line communications |
| 摘要 |
Methods, systems, and products bridge wireless data transmissions with power-line communications. Should a failure occur in alternating current power, a backup battery maintains the power-line communications. Direct current battery power is used to power a wireless transceiver, thus maintaining both wireless data transmissions and communication during power failures. |
| 申请公布号 |
US9495865(B2) |
申请公布日期 |
2016.11.15 |
| 申请号 |
US201414552154 |
申请日期 |
2014.11.24 |
| 申请人 |
AT&T INTELLECTUAL PROPERTY I, L.P. |
发明人 |
Hicks, III John Alson;Davis Brett;Howell Glenn;Thomas Robin;Worsham James A.;Zimler Randy S. |
| 分类号 |
G08B25/10;G08B29/18;H04L12/66;H04B3/54;H04L12/28;G08B25/00;G08B25/06;G08B25/08;H04L12/10 |
主分类号 |
G08B25/10 |
| 代理机构 |
|
代理人 |
Zimmerman, PLLC Scott P. |
| 主权项 |
1. A method, comprising:
receiving ,by a wireless transceiver, messages sent from an alarm controller associated with a security system, the messages modulated onto direct current electrical power conveyed along electrical wiring; energizing, by the wireless transceiver, a bi-modal modem with direct current battery power supplied by an internal backup battery, the bi-modal modem operative using both alternating current electrical power and the direct current battery power; demodulating, by the wireless transceiver, the messages from the direct current electrical power; and wirelessly transmitting, by the wireless transceiver, the messages via a cellular network. |
| 地址 |
Atlanta GA US |
