Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2005-12-06
2005-12-06
Nguyen, Chau (Department: 2661)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C379S114010
Reexamination Certificate
active
06973046
ABSTRACT:
A communication fee charging system includes a switching apparatus a measuring unit a summing unit and a generating unit. The switching apparatus connects a subscriber terminal with at least one counter terminal. The measuring unit measures one of a number of channels and a band quantity occupied in the connection between the subscriber terminal and the at least one counter terminal in response to a measurement start signal, to output a measurement result. The summing unit sums the measurement result. The generating unit outputs the measurement start signal to the measuring unit.
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Martin De Rycker: 1994, Prentice Hall, XP002324498 ISBN: 3-930436-03-5, p. 99, p. 145.
Foley & Lardner LLP
Habte Zewdu
NEC Corporation
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