公开(公告)号：IT1083533B

公开(公告)日：1985-05-21

申请号：IT6842077

申请日：1977-06-20

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： MODENA GIULIO ,  SANDRI STEFANO ,  SCAGLIOLA CARLO

IPC: G10L13/00 ,  G10L11/00 ,  G10L19/00 ,  H04M1/24 ,  H03B

公开(公告)号：DK151757B

公开(公告)日：1987-12-28

申请号：DK507280

申请日：1980-11-28

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： SCAGLIOLA CARLO ,  BILLI ROBERTO

IPC: H04M3/30 ,  G01R27/28 ,  G10H1/00 ,  G10L19/00 ,  H04B3/06 ,  H04B17/00 ,  H04L25/02 ,  H04M3/26 ,  H04B3/46 ,  G01R29/26

Abstract: The method and the device for effecting objective quality measures on speech transmission apparatuses allow the reproduction of the characteristics of the linear part of a system under test, utilizing only the system input and output signals; these characteristics are used to generate a reference signal, obtained from the input signal to the system, with which to compare the output signal of the system, and then to obtain an objective quality measure. This allows elimination of the effects of the linear characteristics, which affect the objective measure without influencing the quality of system performance.

公开(公告)号：DE2826818A1

公开(公告)日：1979-02-08

申请号：DE2826818

申请日：1978-06-19

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： MODENA GIULIO ,  SANDRI STEFANO ,  SCAGLIOLA CARLO

IPC: G10L13/00 ,  G10L11/00 ,  G10L19/00 ,  H04M1/24 ,  G10L1/10 ,  H04B3/46 ,  H04B17/00 ,  H04R29/00

公开(公告)号：DE2403597A1

公开(公告)日：1974-09-19

申请号：DE2403597

申请日：1974-01-25

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： CASTELLINO PAOLO ,  MODENA GIULIO ,  NEBBIA LUCIANO ,  SCAGLIOLA CARLO

IPC: H03M3/04 ,  H03K13/22

公开(公告)号：DE3065213D1

公开(公告)日：1983-11-10

申请号：DE3065213

申请日：1980-12-12

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： SCAGLIOLA CARLO ,  BILLI ROBERTO

IPC: H04M3/30 ,  G01R27/28 ,  G10H1/00 ,  G10L19/00 ,  H04B3/06 ,  H04B17/00 ,  H04L25/02 ,  H04M3/26 ,  G01R29/26

Abstract: The method and the device for effecting objective quality measures on speech transmission apparatuses allow the reproduction of the characteristics of the linear part of a system under test, utilizing only the system input and output signals; these characteristics are used to generate a reference signal, obtained from the input signal to the system, with which to compare the output signal of the system, and then to obtain an objective quality measure. This allows elimination of the effects of the linear characteristics, which affect the objective measure without influencing the quality of system performance.

公开(公告)号：CA1155224A

公开(公告)日：1983-10-11

申请号：CA366630

申请日：1980-12-11

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： SCAGLIOLA CARLO ,  BILLI ROBERTO

IPC: H04M3/30 ,  G01R27/28 ,  G10H1/00 ,  G10L19/00 ,  H04B3/06 ,  H04B17/00 ,  H04L25/02 ,  H04M3/26 ,  H04L1/20 ,  H04L1/24

Abstract: A method and apparatus for effecting objective quality measurements on speech transmission apparatus allows reproduction of the characteristics of the linear part of a system under test, utilizing only the system input and output signals; these characteristics are used to generate a reference signal, obtained from the input signal to the system, with which to compare the output signal of the system, and thence to obtain an objective quality measure. This allows elimination of the effects of the linear characteristics, which affect the objective measurement without influencing the quality of system performance.

公开(公告)号：GB2000303B

公开(公告)日：1982-01-27

申请号：GB7827267

申请日：1978-06-19

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： MODENA GIULIO ,  SANDRI STEFANO ,  SCAGLIOLA CARLO

IPC: G10L13/00 ,  G10L11/00 ,  G10L19/00 ,  H04M1/24 ,  G01R31/00

公开(公告)号：FR2395564A1

公开(公告)日：1979-01-19

申请号：FR7816856

申请日：1978-06-06

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： MODENA GIULIO ,  SANDRI STEFANO ,  SCAGLIOLA CARLO

IPC: G10L13/00 ,  G10L11/00 ,  G10L19/00 ,  H04M1/24 ,  G10L1/10

公开(公告)号：DK151757C

公开(公告)日：1988-06-13

申请号：DK507280

申请日：1980-11-28

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： SCAGLIOLA CARLO ,  BILLI ROBERTO

IPC: H04M3/30 ,  G01R27/28 ,  G10H1/00 ,  G10L19/00 ,  H04B3/06 ,  H04B17/00 ,  H04L25/02 ,  H04M3/26 ,  H04B3/46 ,  G01R29/26

Abstract: The method and the device for effecting objective quality measures on speech transmission apparatuses allow the reproduction of the characteristics of the linear part of a system under test, utilizing only the system input and output signals; these characteristics are used to generate a reference signal, obtained from the input signal to the system, with which to compare the output signal of the system, and then to obtain an objective quality measure. This allows elimination of the effects of the linear characteristics, which affect the objective measure without influencing the quality of system performance.

公开(公告)号：CH629051A5

公开(公告)日：1982-03-31

申请号：CH666778

申请日：1978-06-19

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： MODENA GIULIO ,  SANDRI STEFANO ,  SCAGLIOLA CARLO

IPC: G10L13/00 ,  G10L11/00 ,  G10L19/00 ,  H04M1/24 ,  H04B17/00 ,  G10L1/10 ,  H04R29/00