Pulse or digital communications – Cable systems and components – Transformer coupling
Reexamination Certificate
2007-09-04
2007-09-04
Lugo, David B. (Department: 2611)
Pulse or digital communications
Cable systems and components
Transformer coupling
Reexamination Certificate
active
10143130
ABSTRACT:
A digital subscriber line (DSL) induction-neutralizing transformer (INT) (28) for use in a DSL INT network (10) is provided. The DSL INT (28) includes a core (72) and a coil (74) that is electrically coupled to and wound around the core (72). The coil (74) includes approximately 100-200 feet of approximately 24-gauge wire. The core (72) and coil (74) add longitudinal inductance to a telecommunication line and reduce induced voltage levels at a non-digital subscriber line frequency on the telecommunication line. The DSL INT network (10), containing at least one DSL INT (28), and a method of routing DSL communication signals within the DSL INT network (10), are also provided.
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Lugo David B.
The Southwestern Bell Telephone Co.
Toler Schaffer LLP
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