公开(公告)号：US3796991A

公开(公告)日：1974-03-12

申请号：US3796991D

申请日：1972-07-10

Applicant: CIT ALCATEL

Inventor： STENSTROM C ,  LAMBOURG M ,  DUPREZ R

IPC: H04J3/07 ,  G08C25/00 ,  H04L1/00

CPC classification number: H04J3/07

Abstract: An error-correcting device for the transmission of data on a telegraph line with modulation by coded pulses (MIC) whose sampling sequence is more rapid than the telegraphic speed (number of bits per second), which leads to transmitting in the MIC pattern information bits, doubling bits, called ''''padded bits,'''' as well as supplementary bits, called ''''packing or padded indications,'''' which make it possible to recognize whether a given bit is an information bit or a padded bit. The succession of the valances of the packing indications follows a well defined law. The invention furnishes the means to carry out a correction if this law is not complied with.

公开(公告)号：DK390376A

公开(公告)日：1977-03-01

申请号：DK390376

申请日：1976-08-27

Applicant: CIT ALCATEL

Inventor： STENSTROM C ,  SAINT-SUPERY C

IPC: H03K5/04 ,  G02F1/1347 ,  H04L27/20 ,  H04L

Abstract: A digital device has an input for receiving successive samples of input data in digital form representative of phase values zeta . A sequence of the most recent input samples is stored in an input memory. A carrier phase source provides a signal representative of the phase theta of a carrier wave. A function memory stores values of a function ki x sin ( zeta n-i+ theta n) and is addressed by first selection means which select a group corresponding to a coefficient ki and second selection means which select a member of the group corresponding to the value of ( zeta + theta ). During a calculation period the sum of all values of the function is calculated for i varying between l and a predetermined number r. Each such sum forms a sample of the output wave which is converted to analogue form and filtered to remove unwanted sampling components.

公开(公告)号：DK137156C

公开(公告)日：1978-06-26

申请号：DK524373

申请日：1973-09-25

Applicant: COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL

Inventor： STENSTROM C

IPC: H04L7/00 ,  H04L7/02 ,  H04L7/033 ,  H04L25/493

Abstract: The invention concerns a device for the synchronizing, at the receiving end, of a sequence of bits used for identifying the instant at which a telegraphic transition appears in intervals of time having a uniform length, that synchronizing being based on a counting of intervals not comprising a transition.

公开(公告)号：SE382732B

公开(公告)日：1976-02-09

申请号：SE7312957

申请日：1973-09-24

Applicant: CIT ALCATEL

Inventor： STENSTROM C

IPC: H04L7/02 ,  H04L7/033 ,  H04L7/00 ,  H04L25/493

Abstract: The invention concerns a device for the synchronizing, at the receiving end, of a sequence of bits used for identifying the instant at which a telegraphic transition appears in intervals of time having a uniform length, that synchronizing being based on a counting of intervals not comprising a transition.

公开(公告)号：SE403547B

公开(公告)日：1978-08-21

申请号：SE7504909

申请日：1975-04-28

Applicant: CIT ALCATEL

Inventor： BOYER M-L ,  STENSTROM C ,  MINARD F

IPC: H04J1/05 ,  H04J1/08 ,  H04L5/06 ,  H04L27/00

公开(公告)号：SE7504909L

公开(公告)日：1975-10-30

申请号：SE7504909

申请日：1975-04-28

Applicant: CIT ALCATEL

Inventor： BOYER M-L ,  STENSTROM C ,  MINARD F

IPC: H04J1/05 ,  H04J1/08 ,  H04L5/06 ,  H04L27/00 ,  H04J1/02

公开(公告)号：SE408363B

公开(公告)日：1979-06-05

申请号：SE7609536

申请日：1976-08-27

Applicant: CIT ALCATEL

Inventor： STENSTROM C ,  SAINT-SUPERY C

IPC: H03K5/04 ,  G02F1/1347 ,  H04L27/20

Abstract: A digital device has an input for receiving successive samples of input data in digital form representative of phase values zeta . A sequence of the most recent input samples is stored in an input memory. A carrier phase source provides a signal representative of the phase theta of a carrier wave. A function memory stores values of a function ki x sin ( zeta n-i+ theta n) and is addressed by first selection means which select a group corresponding to a coefficient ki and second selection means which select a member of the group corresponding to the value of ( zeta + theta ). During a calculation period the sum of all values of the function is calculated for i varying between l and a predetermined number r. Each such sum forms a sample of the output wave which is converted to analogue form and filtered to remove unwanted sampling components.

公开(公告)号：SE7609536L

公开(公告)日：1977-03-01

申请号：SE7609536

申请日：1976-08-27

Applicant: CIT ALCATEL

Inventor： STENSTROM C ,  SAINT-SUPERY C

IPC: H03K5/04 ,  G02F1/1347 ,  H04L27/20

Abstract: A digital device has an input for receiving successive samples of input data in digital form representative of phase values zeta . A sequence of the most recent input samples is stored in an input memory. A carrier phase source provides a signal representative of the phase theta of a carrier wave. A function memory stores values of a function ki x sin ( zeta n-i+ theta n) and is addressed by first selection means which select a group corresponding to a coefficient ki and second selection means which select a member of the group corresponding to the value of ( zeta + theta ). During a calculation period the sum of all values of the function is calculated for i varying between l and a predetermined number r. Each such sum forms a sample of the output wave which is converted to analogue form and filtered to remove unwanted sampling components.