Method and apparatus for determining properties of a...

Details Method and apparatus for determining properties of a... Method and apparatus for determining properties of a...

2005-03-08

2005-03-08

Tran, Quoc (Department: 2643)

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Of data transmission

C379S001010, C379S022020, C379S024000, C379S027030, C379S021000, C324S533000

Reexamination Certificate

active

06865256

ABSTRACT:
The invention concerns a time domain reflectometry method for estimating properties of a transmission channel, for instance a channel for transmitting electric or acoustic signals. This method includes the steps of generating, at one end of the channel, a plurality of pulses (40, 42, 44) covering differency frequency bands, and processing the echoes provided by these pulses at the same end of the channel. The frequency bands of the generated pulses are preferably overlapping. The invention is particularly applicable to the testing of ADSL services.

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