Methods and apparatus to test a subscriber line for a broadband access service

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8369484
APP PUB NO 20090074155A1
SERIAL NO

11857724

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Abstract

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Methods and apparatus to test a subscriber line for a broadband access service are disclosed. An example network interface device (NID) comprises a tone generator to transmit a tone on a subscriber line to characterize the subscriber line while a DSL modem is providing a DSL service via the subscriber line, the tone having a frequency occurring within a range of frequencies in use by the DSL modem to provide the DSL service, and a pair of terminals to couple the DSL modem and the tone generator to the subscriber line.

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Patent Owner(s)

  • AT&T INTELLECTUAL PROPERTY I, L.P.;AT&T KNOWLEDGE VENTURES, L.P.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shrikhande, Kapil Berkeley, US 24 556
Wang, Jin Fremont, US 749 21972

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