EP 1958407 A1 20080820 - METHOD FOR UNDERWATER TRANSMISSION OF DATA PACKETS
Title (en)
METHOD FOR UNDERWATER TRANSMISSION OF DATA PACKETS
Title (de)
VERFAHREN ZUR UNTERWASSERÜBERTRAGUNG VON DATENPAKETEN
Title (fr)
PROCEDE POUR LA TRANSMISSION SOUS-MARINE DE PAQUETS DE DONNEES
Publication
Application
Priority
- EP 2006068892 W 20061124
- FR 0511967 A 20051125
Abstract (en)
[origin: FR2894097A1] The method involves transmitting long packets i.e. pure information data, and short packets i.e. acknowledgements, where each packet has an acquisition preamble, actual data items and an assembly of fixed non-modulated carriers. The preamble permits to detect the presence and co-determines time and frequency offset initial values, and the carriers permit to continuously evaluate the frequency offset. The preamble is formed of a set of fine duration pulses spaced at a minimum duration.
IPC 8 full level
H04L 27/26 (2006.01)
CPC (source: EP US)
H04L 27/2613 (2013.01 - EP US); H04L 1/1692 (2013.01 - EP US); H04L 2027/0095 (2013.01 - EP US)
Citation (search report)
See references of WO 2007060221A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
FR 2894097 A1 20070601; FR 2894097 B1 20080111; EP 1958407 A1 20080820; US 2009219786 A1 20090903; US 7835228 B2 20101116; WO 2007060221 A1 20070531
DOCDB simple family (application)
FR 0511967 A 20051125; EP 06819755 A 20061124; EP 2006068892 W 20061124; US 9498206 A 20061124