Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite SA
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Filing date
Publication date
Application filed by Compagnie Generale dElectricite SAfiledCriticalCompagnie Generale dElectricite SA
Application grantedgrantedCritical
Publication of FR895987ApublicationCriticalpatent/FR895987A/fr
H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H04L27/00—Modulated-carrier systems
H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
Landscapes
Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Signal Processing
(AREA)
FR895987D1943-03-121943-03-12Dispositif de sécurité dans les systèmes de transmission télégraphique par fréquence vocale à double courant
ExpiredFR895987A
(fr)