Method for optimizing the transmission properties and the...

Details Method for optimizing the transmission properties and the... Method for optimizing the transmission properties and the...

2005-11-15

2005-11-15

Harold, Jefferey F. (Department: 2644)

Telephonic communications

Subscriber line or transmission line interface

C379S387020, C379S398000, C379S413020

Reexamination Certificate

active

06965670

ABSTRACT:
A method for optimizing the transmission properties and power loss of a high voltage part integrated in a subscriber line circuit for connecting a subscriber line wherein, during XDSL data transmission in the high voltage part, current sources which are integrated in the high voltage part and which supply current to the units present in the high voltage part for the purpose of amplifying or measuring telephone signals and/or data signals (which are situated above the frequency band provided for speech), are set, no later than when such data signals are received in the high voltage part, to current values which are higher than the current values for exclusive transmission of telephone signals situated within the voice band provided for speech, such that the data signals within the high voltage part are transmitted with a high bandwidth largely without distortions and the power loss of the high voltage part is optimized.

REFERENCES:
patent: 6192109 (2001-02-01), Amrany et al.
patent: 27 33 662 (1978-06-01), None
patent: 3433900 (1986-03-01), None
A Subscriber Line Interface Circuit (SLIC) in a New BiCMOS/DMOS Technology, Zojer et al., pp. 93-96.
XP-000731500—Saving Dynamic Power in HDSL Line Driving Applications, Nash.
ISSCC95/Session 20/RF/Baseband Processing/Paper FP 20.4, Chang et al.

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