APPARATUS, METHOD AND COMPUTER PROGRAM FOR OBTAINING A TIME-DOMAIN-REFLECTION RESPONSE-INFORMATION

摘要

An apparatus for obtaining a time-domain-reflection response-information comprises a signal driver adapted to apply two pulses of different pulse lengths to a TDR port in order to excite a first TDR response signal corresponding to a first pulse and a second TDR response signal corresponding to a second pulse. The apparatus comprises a timing determinator adapted to provide a timing Information on the basis of a first instance in time when the first TDR response signal crosses a threshold value and on the basis of a second instance in time when the second TDR response signal crosses the threshold value. The apparatus comprises a TDR response information calculator adapted to calculate an information about a TDR response on the basis of the timing information. ® KIPO & WIPO 2009