EP 1886535 A1 20080213 - METHOD OF PRODUCING A PLURALITY OF TIME SIGNALS
Title (en)
METHOD OF PRODUCING A PLURALITY OF TIME SIGNALS
Title (de)
VERFAHREN ZUM HERSTELLEN MEHRERER ZEITSIGNALE
Title (fr)
PROCEDE POUR PRODUIRE UNE PLURALITE DE SIGNAUX TEMPORELS
Publication
Application
Priority
- FR 2006001244 W 20060526
- FR 0551399 A 20050527
Abstract (en)
[origin: WO2006125931A1] The invention essentially relates to a method of producing more than two different electric time sound signals (C(t), GF(t), DF(t), GA(t), DA(t)) from two initial electric time signals (Gl(t), Dl(t)). The inventive method comprises the following steps consisting in: in the frequency domain, producing a central electric frequency sound signal (C(v)) from the in-phase frequency components of the initial signals; and producing two front signals (GF(t), DF(t)) by subtracting the central signal (C(t)) from the initial signals (Gl(t), Dl(t)). In addition, two rear signals (GA(t), DA(t)) can be produced from the out-of-phase frequency components of the initial signals. In this way, the method can be used to transform a stereophonic signal into a type 5.1 signal comprising five different sound signals.
IPC 8 full level
H04R 5/04 (2006.01)
CPC (source: EP US)
H04R 5/04 (2013.01 - EP US)
Citation (search report)
See references of WO 2006125931A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2886503 A1 20061201; FR 2886503 B1 20070824; EP 1886535 A1 20080213; EP 1886535 B1 20131016; US 2008152153 A1 20080626; US 8064607 B2 20111122; WO 2006125931 A1 20061130
DOCDB simple family (application)
FR 0551399 A 20050527; EP 06764713 A 20060526; FR 2006001244 W 20060526; US 94588907 A 20071127