公开(公告)号：DE3888830D1

公开(公告)日：1994-05-05

申请号：DE3888830

申请日：1988-08-30

Applicant: IBM

Inventor： BELLOC JACQUES ,  GALAND CLAUDE ,  LANCON EMMANUEL ,  MILEWSKI ANDRE ,  QUINTIN MICHEL

IPC: H03H17/00 ,  H03H17/02 ,  H03H17/06

公开(公告)号：DE3783905T2

公开(公告)日：1993-08-19

申请号：DE3783905

申请日：1987-03-05

Applicant: IBM

Inventor： GALAND CLAUDE ,  ROSSO MICHELE ,  LIETHOUDT THIERRY ,  ELIE PHILIPPE ,  LANCON EMMANUEL ,  CREPY HUBERT

IPC: G01H3/04 ,  G10L19/08 ,  G10L9/14

公开(公告)号：DE3888830T2

公开(公告)日：1994-11-24

申请号：DE3888830

申请日：1988-08-30

Applicant: IBM

Inventor： BELLOC JACQUES ,  GALAND CLAUDE ,  LANCON EMMANUEL ,  MILEWSKI ANDRE ,  QUINTIN MICHEL

IPC: H03H17/00 ,  H03H17/02 ,  H03H17/06

公开(公告)号：DE69127967D1

公开(公告)日：1997-11-20

申请号：DE69127967

申请日：1991-07-11

Applicant: IBM

Inventor： GALAND CLAUDE ,  LANCON EMMANUEL ,  FURLAN GILBERT ,  MENEZ JEAN

IPC: G06T9/00 ,  H04N7/26 ,  H04N19/593 ,  H04N7/24

公开(公告)号：DE3783905D1

公开(公告)日：1993-03-11

申请号：DE3783905

申请日：1987-03-05

Applicant: IBM

Inventor： GALAND CLAUDE ,  ROSSO MICHELE ,  LIETHOUDT THIERRY ,  ELIE PHILIPPE ,  LANCON EMMANUEL ,  CREPY HUBERT

IPC: G01H3/04 ,  G10L19/08 ,  G10L9/14

Abstract: The digital process includes setting signal dependent positive threshold (Th+) and negative threshold (Th-). Samples representative of the signal block are located and stored having magnitudes above and below the thresholds. Significant sign transitions are located within the stored samples. The number M' of stored samples between the consecutively located significant transitions is computed and a rough value M is computed as the mean value of M'. Autocorrelation zones are set about the multiples of M spaced peak samples and the considered block of signal samples is split into consecutive sub-blocks. A current sub-block of samples is autocorrelated with sub-blocks of samples the first of which is one sample of an autocorrelation zone.