- 专利标题: System and method for providing power over a home phone line network
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申请号: US11034182申请日: 2005-01-13
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公开(公告)号: US07046796B2公开(公告)日: 2006-05-16
- 发明人: Theodore F. Rabenko , Charles G. Wier , Steven L. Caine , John H. Gleiter , Kevin L. Miller
- 申请人: Theodore F. Rabenko , Charles G. Wier , Steven L. Caine , John H. Gleiter , Kevin L. Miller
- 申请人地址: US CA Irvine
- 专利权人: Broadcom Corporation
- 当前专利权人: Broadcom Corporation
- 当前专利权人地址: US CA Irvine
- 代理机构: Sterne Kessler Goldstein & Fox PLLC
- 主分类号: H04M19/08
- IPC分类号: H04M19/08
摘要:
A system and method is provided for supplying power over a home phone line network in a manner that is interoperable with other voice and data services operating on the same network. The system includes a power source coupled to the home phone line network. The power source includes an AC signal generator that generates an AC signal at a selected frequency. The power source also includes a band pass filter for removing unwanted harmonics from the AC signal, thereby generating a filtered AC signal for powering one or more devices on the home phone line network. One or more devices attached to the home phone line network, such as a telephone adapter or telephone, receives the filtered AC signal. Each device comprises a second band pass filter and an AC/DC converter. The second band pass filter passes the filtered AC signal to the AC/DC converter and prevents the introduction of undesired harmonics onto the home phone line network from the AC/DC converter. The AC/DC converter converts the filtered AC signal to a DC signal used for powering the device.