公开(公告)号：US3555425A

公开(公告)日：1971-01-12

申请号：US3555425D

申请日：1967-05-16

Applicant: CSF

Inventor： DUMAIRE MARC

IPC: H04L9/12 ,  H04L9/18 ,  H04L7/00

CPC classification number: H04L9/12 ,  H04L2209/12

Abstract: A TRANSMITTER AND RECEIVER STATION FOR A TWO-WAY SYNCHRONOUS CODED LINK ARE PROVIDED. IT COMPRISES A KEY GENERATOR CONNECTED TO A DECODING AND CODING ARRANGEMENT. A FIRST CLOCK CONTROLS THE KEY GENERATOR WITH A PREDETERMINED PHASE VALUE DURING THE RECEPTION AND A SECOND CLOCK CONTROLS THE KEY GENERATOR WITH ANOTHER PREDETERMINED PHASE VALUE DURING THE TRANSMISSION. FIRST MEANS ARE PROVIDED, WHEN THE STATION SWITCHES FROM TRANSMISSION TO RECEPTION, FOR STOPPING THE KEY GENERATOR, WHICH WAS IN SYNCHRONISM WITH THE FIRST CLOCK, DURING THE TIME NECESSARY FOR BRINGING IT IN PHASE WITH THE SECOND CLOCK, SECOND MEANS ARE PROVIDED FOR ACCELERATING, WHEN THE STATION SWITCHES FROM RECEPTION TO TRANSMISSION, THE KEY GENERATOR, WHICH WAS IN PHASE WITH SAID SECOND CLOCK, DURING THE TIME NECESSARY FOR BRINGING IT IN PHASE WITH SAID FIRST CLOCK.

公开(公告)号：US3502793A

公开(公告)日：1970-03-24

申请号：US3502793D

申请日：1966-12-28

Applicant: CSF

Inventor： DUMAIRE MARC

IPC: H04L9/00 ,  H04L15/34

CPC classification number: H04L9/0637 ,  H04L9/0861 ,  H04L2209/12