Telephonic communications – Subscriber line or transmission line interface
Reexamination Certificate
2005-06-21
2005-06-21
Tran, Sinh (Department: 2644)
Telephonic communications
Subscriber line or transmission line interface
C379S399020, C379S402000
Reexamination Certificate
active
06909781
ABSTRACT:
An analog front end system comprising a digital-to-analog converter, a line driver, a multiple-input device, and an analog-to-digital converter is presented. Furthermore, a method for DSL line testing comprising the steps of providing test stimuli to and receiving responses from a DSL line using an analog front end is presented. The presented system and method provides for the testing of a DSL line in an xDSL communications system deployment.
REFERENCES:
patent: 6192109 (2001-02-01), Amrany et al.
GlobespanVirata Inc.
Swerdlow Daniel
Thomas Kayden Horstemeyer & Risley
Tran Sinh
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