公开(公告)号：SE9704009L

公开(公告)日：1999-05-04

申请号：SE9704009

申请日：1997-11-03

Applicant: TELIA AB

Inventor： OLSSON LENNART ,  BAHLENBERG K-G ,  BENGTSSON DANIEL ,  HAAKANSSON SIWERT ,  ISAKSSON ANDERS ,  ISAKSSON L-AA ,  ISAKSSON MIKAEL ,  JOHANSSON MAGNUS ,  LATHI MAURITZ ,  LJUNGGREN KARIN L-M ,  LUNDBERG HANS ,  NORDSTROEM TOMAS ,  OLOFSSON S-R ,  STEFANSSON TOMAS ,  OEHMAN HANS ,  OEKVIST S G ,  OEDLING PER ,  DENTGEN PETRA ,  SJOEBERG FRANK

IPC: H04J11/00 ,  H04B3/02 ,  H04B3/50 ,  H04L5/02 ,  H04L5/14

公开(公告)号：SE9704010D0

公开(公告)日：1997-11-03

申请号：SE9704010

申请日：1997-11-03

Applicant: TELIA AB

Inventor： OLSSON LENNART ,  BAHLENBERG K-G ,  BENGTSSON DANIEL ,  HAAKANSSON SIWERT ,  ISAKSSON ANDERS ,  ISAKSSON L-AA ,  ISAKSSON MIKAEL ,  JOHANSSON MAGNUS ,  LATHI MAURITZ ,  LJUNGGREN KARIN L-M ,  LUNDBERG HANS ,  NORDSTROEM TOMAS ,  OLOFSSON S-R ,  STEFANSSON TOMAS ,  OEHMAN HANS ,  OEKVIST S G ,  OEDLING PER ,  DENTGEN PETRA ,  SJOEBERG FRANK

IPC: H04B3/23 ,  H04B

Abstract: The hybrid circuit can be used to substantially reduce near echo signals. The circuit includes a balanced 2-wire to 4-wire hybrid for interconnecting a two wire receive path and a two wire transmit path to a two wire transmission line. The two wire receive path connects the balanced hybrid to an A/D converter and the two wire transmit path connects a D/A converter to the balanced hybrid. The two wire receive path contains a filter, dimensioned to remove signals transmitted from the D/A converter. The invention is particularly adapted for use with FDD and OFDD.

公开(公告)号：SE9704010L

公开(公告)日：1999-05-04

申请号：SE9704010

申请日：1997-11-03

Applicant: TELIA AB

Inventor： OLSSON LENNART ,  BAHLENBERG K-G ,  BENGTSSON DANIEL ,  HAAKANSSON SIWERT ,  ISAKSSON ANDERS ,  ISAKSSON L-AA ,  ISAKSSON MIKAEL ,  JOHANSSON MAGNUS ,  LATHI MAURITZ ,  LJUNGGREN KARIN L-M ,  LUNDBERG HANS ,  NORDSTROEM TOMAS ,  OLOFSSON S-R ,  STEFANSSON TOMAS ,  OEHMAN HANS ,  OEKVIST S G ,  OEDLING PER ,  DENTGEN PETRA ,  SJOEBERG FRANK

IPC: H04B3/23

Abstract: The hybrid circuit can be used to substantially reduce near echo signals. The circuit includes a balanced 2-wire to 4-wire hybrid for interconnecting a two wire receive path and a two wire transmit path to a two wire transmission line. The two wire receive path connects the balanced hybrid to an A/D converter and the two wire transmit path connects a D/A converter to the balanced hybrid. The two wire receive path contains a filter, dimensioned to remove signals transmitted from the D/A converter. The invention is particularly adapted for use with FDD and OFDD.

公开(公告)号：SE510641C2

公开(公告)日：1999-06-14

申请号：SE9704009

申请日：1997-11-03

Applicant: TELIA AB

Inventor： OLSSON LENNART ,  BAHLENBERG K-G ,  BENGTSSON DANIEL ,  HAAKANSSON SIWERT ,  ISAKSSON ANDERS ,  ISAKSSON L-AA ,  ISAKSSON MIKAEL ,  JOHANSSON MAGNUS ,  LATHI MAURITZ ,  LJUNGGREN KARIN L-M ,  LUNDBERG HANS ,  NORDSTROEM TOMAS ,  OLOFSSON S-R ,  STEFANSSON TOMAS ,  OEHMAN HANS ,  OEKVIST S G ,  OEDLING PER ,  DENTGEN PETRA ,  SJOEBERG FRANK

IPC: H04J11/00 ,  H04B3/02 ,  H04B3/50 ,  H04L5/02 ,  H04L5/14

公开(公告)号：SE9704009D0

公开(公告)日：1997-11-03

申请号：SE9704009

申请日：1997-11-03

Applicant: TELIA AB

Inventor： OLSSON LENNART ,  BAHLENBERG K-G ,  BENGTSSON DANIEL ,  HAAKANSSON SIWERT ,  ISAKSSON ANDERS ,  ISAKSSON L-AA ,  ISAKSSON MIKAEL ,  JOHANSSON MAGNUS ,  LATHI MAURITZ ,  LJUNGGREN KARIN L-M ,  LUNDBERG HANS ,  NORDSTROEM TOMAS ,  OLOFSSON S-R ,  STEFANSSON TOMAS ,  OEHMAN HANS ,  OEKVIST S G ,  OEDLING PER ,  DENTGEN PETRA ,  SJOEBERG FRANK

IPC: H04J11/00 ,  H04B3/02 ,  H04B3/50 ,  H04L5/02 ,  H04L5/14 ,  H04B