Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of trunk or long line
Reexamination Certificate
2005-04-28
2011-12-20
Tran, Quoc D (Department: 2614)
Telephonic communications
Diagnostic testing, malfunction indication, or electrical...
Of trunk or long line
C379S029030, C379S030000
Reexamination Certificate
active
08081736
ABSTRACT:
A method and an apparatus for measuring electrical properties of communication lines is presented, wherein the communication line comprises a first line and a second line, wherein the first line is connected to a first line driver and the second line is connected to a second line driver. At least one measurement for determining said properties of said communication line is performed with the first line driver or the second line driver set to a high impedance state. With this method and apparatus, detailed line testing can be performed without the need for additional elements in a communication circuit.
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Blechschmidt Klaus
Linder Thomas
Schönberger Michael
Springett Chris
Wippich Günter
Lantiq Deutschland GmbH
SpryIP, LLC
Tran Quoc D
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