Telephonic communications – Subscriber line or transmission line interface – Power supply
Reexamination Certificate
2006-05-16
2006-05-16
Tran, Sinh (Department: 2646)
Telephonic communications
Subscriber line or transmission line interface
Power supply
Reexamination Certificate
active
07046796
ABSTRACT:
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.
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Copy of International Search Report issued Oct. 9, 2002 for Appln. No. PCT/US01/13030, 6 pages.
Caine Steven L.
Gleiter John H.
Miller Kevin L.
Rabenko Theodore F.
Wier Charles G.
Briney III Walter F
Broadcom Corporation
Sterne Kessler Goldstein & Fox PLLC
Tran Sinh
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